You searched for subject:(Solid state fermentation)
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1.
Singh Nee Nigam, Poonam.
Biotechnology for processing natural resources employing microbial-catalysts and fermentation systems.
Degree: PhD, 2020, Ulster University
URL: https://pure.ulster.ac.uk/en/studentTheses/9c82321a-2207-4831-a11c-d893881cac01
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.809149
► Research presented in this thesis has revealed exciting possibilities in the subject of Microbial technology. The work completed in several funded projects was aimed and…
(more)
▼ Research presented in this thesis has revealed exciting possibilities in the subject of Microbial technology. The work completed in several funded projects was aimed and focussed on the selection and modification of microorganisms as biocatalysts, and their application in the processes of interest. Therefore, the title of thesis reflects the work incorporated in, as “Biotechnology for processing natural resources employing microbialcatalysts and fermentation systems” The research work submitted in this thesis has been conducted and published after the award of my PhD degree in 1985, and includes some of my postdoctoral work 1986-1989 in Germany, but mostly the research work completed during my full-time employment as a research-active academic member of staff at Ulster University since Jan 1990-present in UK. The contribution of my research and published work, in public domain, has been to advance the study of subject, in the area of applied Microbial-Biotechnology; on aspects of Fermentation-technology using cultivation of microorganisms in submerged and solidstate/substrate systems; Microbial processes for Bioremediation; Bioconversion of renewable bioresources, industrial residues and by-products from food and drink industries; Biotreatment & Biodegradation of agricultural wastes and residues for their reuse as added-value products etc. The work published has been presented in six separate sections, and full copy of some publications have been attached. The whole journey of this research work has produced several doctoral and postdoctoral researchers, who are taking this advancement of science further in their jobs responsibilities as researcher/supervisor/examiner in several countries. The main exciting possibility as an outcome of work in this thesis for new researchers is – “The microorganisms, as powerful biocatalysts, can be purposely modified for their economical and practical exploitation to perform a range of bioprocesses. The systems can be optimised and scaled for their application in several industries, such as food, biofuel, pharmaceutical and for environment sustainability”.
Subjects/Keywords: Solid state Fermentation; Food-fermentation; Enzymes
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Singh Nee Nigam, P. (2020). Biotechnology for processing natural resources employing microbial-catalysts and fermentation systems. (Doctoral Dissertation). Ulster University. Retrieved from https://pure.ulster.ac.uk/en/studentTheses/9c82321a-2207-4831-a11c-d893881cac01 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.809149
Chicago Manual of Style (16th Edition):
Singh Nee Nigam, Poonam. “Biotechnology for processing natural resources employing microbial-catalysts and fermentation systems.” 2020. Doctoral Dissertation, Ulster University. Accessed January 19, 2021.
https://pure.ulster.ac.uk/en/studentTheses/9c82321a-2207-4831-a11c-d893881cac01 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.809149.
MLA Handbook (7th Edition):
Singh Nee Nigam, Poonam. “Biotechnology for processing natural resources employing microbial-catalysts and fermentation systems.” 2020. Web. 19 Jan 2021.
Vancouver:
Singh Nee Nigam P. Biotechnology for processing natural resources employing microbial-catalysts and fermentation systems. [Internet] [Doctoral dissertation]. Ulster University; 2020. [cited 2021 Jan 19].
Available from: https://pure.ulster.ac.uk/en/studentTheses/9c82321a-2207-4831-a11c-d893881cac01 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.809149.
Council of Science Editors:
Singh Nee Nigam P. Biotechnology for processing natural resources employing microbial-catalysts and fermentation systems. [Doctoral Dissertation]. Ulster University; 2020. Available from: https://pure.ulster.ac.uk/en/studentTheses/9c82321a-2207-4831-a11c-d893881cac01 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.809149

University of Manchester
2.
Abdul Manan, Musaalbakri.
DESIGN ASPECTS OF SOLID STATE FERMENTATION.
Degree: 2014, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:223372
► Solid state fermentation (SSF) refers to the microbial fermentation, which takes place in the absence or near absence of free water, thus being close to…
(more)
▼ Solid state fermentation (SSF) refers to the
microbial
fermentation, which takes place in the absence or near
absence of free water, thus being close to the natural environment
to which the selected microorganisms, especially fungi, are
naturally adapted. The current status of SSF research globally was
discussed in terms of articles publication. This was followed by
discussion of the advantages of SSF and the reason for interest in
SSF as a notable bioprocessing technology to be investigated and
compared to submerged
fermentation (SmF) for the production of
various added-value products. SSF also proved to be a potential
technology to treat
solid waste produced from food and agricultural
industry and to provide environmental benefits with
solid waste
treatment. A summary was made of the attempts at using modern SSF
technology for future biorefineries for the production of
chemicals. Many works were carried out in the Satake Centre for
Grain Process Engineering (SCGPE), University of Manchester, to
prove the strategy of using SSF for the production of hydrolysate
rich in nutrients for sequel microbial
fermentation with or without
adding any commercial nutrients.The research findings presented in
this thesis are based on a series of SSF experiments carried out on
systems varying in complexity from simple petri dishes to our own
design of bioreactor systems. They were conducted to assess a
solution for biomass estimation, enzymes production, and successful
mass and heat transfer. A proper technique for inoculum transfer
prior to the start of the
fermentation process was developed. In
SSF, estimation of biomass presents difficulties as generally the
fungal mycelium penetrates deep and remains attached with the
solid
substrate particles. Although many promising methods are available,
the evaluation of microbial growth in SSF may sometimes become
laborious, impractical and inaccurate. Essentially, this remains
another critical issue for monitoring growth. In these studies,
measurement of colour changes during SSF are presented as one of
the potential techniques that can be used to describe growth,
complementary to monitoring metabolic activity measurement, such as
CER, OUR and heat evolution, which is directly related to growth.
For the growth of Aspergillus awamori and Aspergillus oryzae on
wheat bran, soybean hulls and rapeseed meal, it was confirmed that
colour production was directly proportional to fungal growth. This
colourimetric technique was also proved to be a feasible approach
for fungal biomass estimation in SmF. This new approach is an
important complementation to the existing techniques especially for
basic studies. The key finding is that the colourimetric technique
demonstrated and provided information of higher quality than that
obtained by visual observation or spores counting.The effect of
aeration arrangements on moisture content, oxygen (O2), mass and
heat transfer during SSF was investigated. A. awamori and A. oryzae
were cultivated on wheat bran in newly designed four tray
solid
state bioreactor (SSB)…
Advisors/Committee Members: Webb, Colin.
Subjects/Keywords: Solid State Fermentation; Biomass Estimation; Colourimetric Technique; Tray Solid State Bioreactor
Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Abdul Manan, M. (2014). DESIGN ASPECTS OF SOLID STATE FERMENTATION. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:223372
Chicago Manual of Style (16th Edition):
Abdul Manan, Musaalbakri. “DESIGN ASPECTS OF SOLID STATE FERMENTATION.” 2014. Doctoral Dissertation, University of Manchester. Accessed January 19, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:223372.
MLA Handbook (7th Edition):
Abdul Manan, Musaalbakri. “DESIGN ASPECTS OF SOLID STATE FERMENTATION.” 2014. Web. 19 Jan 2021.
Vancouver:
Abdul Manan M. DESIGN ASPECTS OF SOLID STATE FERMENTATION. [Internet] [Doctoral dissertation]. University of Manchester; 2014. [cited 2021 Jan 19].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:223372.
Council of Science Editors:
Abdul Manan M. DESIGN ASPECTS OF SOLID STATE FERMENTATION. [Doctoral Dissertation]. University of Manchester; 2014. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:223372
3.
Abdul Manan, Musaalbakri.
Design aspects of solid state fermentation.
Degree: PhD, 2014, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/design-aspects-of-solid-state-fermentation(d64ea506-85ee-424f-9bca-531488e3e3c7).html
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.617967
► Solid state fermentation (SSF) refers to the microbial fermentation, which takes place in the absence or near absence of free water, thus being close to…
(more)
▼ Solid state fermentation (SSF) refers to the microbial fermentation, which takes place in the absence or near absence of free water, thus being close to the natural environment to which the selected microorganisms, especially fungi, are naturally adapted. The current status of SSF research globally was discussed in terms of articles publication. This was followed by discussion of the advantages of SSF and the reason for interest in SSF as a notable bioprocessing technology to be investigated and compared to submerged fermentation (SmF) for the production of various added-value products. SSF also proved to be a potential technology to treat solid waste produced from food and agricultural industry and to provide environmental benefits with solid waste treatment. A summary was made of the attempts at using modern SSF technology for future biorefineries for the production of chemicals. Many works were carried out in the Satake Centre for Grain Process Engineering (SCGPE), University of Manchester, to prove the strategy of using SSF for the production of hydrolysate rich in nutrients for sequel microbial fermentation with or without adding any commercial nutrients. The research findings presented in this thesis are based on a series of SSF experiments carried out on systems varying in complexity from simple petri dishes to our own design of bioreactor systems. They were conducted to assess a solution for biomass estimation, enzymes production, and successful mass and heat transfer. A proper technique for inoculum transfer prior to the start of the fermentation process was developed. In SSF, estimation of biomass presents difficulties as generally the fungal mycelium penetrates deep and remains attached with the solid substrate particles. Although many promising methods are available, the evaluation of microbial growth in SSF may sometimes become laborious, impractical and inaccurate. Essentially, this remains another critical issue for monitoring growth. In these studies, measurement of colour changes during SSF are presented as one of the potential techniques that can be used to describe growth, complementary to monitoring metabolic activity measurement, such as CER, OUR and heat evolution, which is directly related to growth. For the growth of Aspergillus awamori and Aspergillus oryzae on wheat bran, soybean hulls and rapeseed meal, it was confirmed that colour production was directly proportional to fungal growth. This colourimetric technique was also proved to be a feasible approach for fungal biomass estimation in SmF. This new approach is an important complementation to the existing techniques especially for basic studies. The key finding is that the colourimetric technique demonstrated and provided information of higher quality than that obtained by visual observation or spores counting. The effect of aeration arrangements on moisture content, oxygen (O2), mass and heat transfer during SSF was investigated. A. awamori and A. oryzae were cultivated on wheat bran in newly designed four tray solid state bioreactor…
Subjects/Keywords: 660; Solid State Fermentation; Biomass Estimation; Colourimetric Technique; Tray Solid State Bioreactor
Record Details
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Abdul Manan, M. (2014). Design aspects of solid state fermentation. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/design-aspects-of-solid-state-fermentation(d64ea506-85ee-424f-9bca-531488e3e3c7).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.617967
Chicago Manual of Style (16th Edition):
Abdul Manan, Musaalbakri. “Design aspects of solid state fermentation.” 2014. Doctoral Dissertation, University of Manchester. Accessed January 19, 2021.
https://www.research.manchester.ac.uk/portal/en/theses/design-aspects-of-solid-state-fermentation(d64ea506-85ee-424f-9bca-531488e3e3c7).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.617967.
MLA Handbook (7th Edition):
Abdul Manan, Musaalbakri. “Design aspects of solid state fermentation.” 2014. Web. 19 Jan 2021.
Vancouver:
Abdul Manan M. Design aspects of solid state fermentation. [Internet] [Doctoral dissertation]. University of Manchester; 2014. [cited 2021 Jan 19].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/design-aspects-of-solid-state-fermentation(d64ea506-85ee-424f-9bca-531488e3e3c7).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.617967.
Council of Science Editors:
Abdul Manan M. Design aspects of solid state fermentation. [Doctoral Dissertation]. University of Manchester; 2014. Available from: https://www.research.manchester.ac.uk/portal/en/theses/design-aspects-of-solid-state-fermentation(d64ea506-85ee-424f-9bca-531488e3e3c7).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.617967

Brno University of Technology
4.
Peterek, Miroslav.
Využití odpadního papíru na mikrobiální produkci celuláz: The employment of waste paper to microbial production of cellulases.
Degree: 2018, Brno University of Technology
URL: http://hdl.handle.net/11012/5583
► Study of the employment of waste paper to microbial production of cellulase was carried out using Aspergillus niger cultivation on carbon sources that have been…
(more)
▼ Study of the employment of waste paper to microbial production of cellulase was carried out using Aspergillus niger cultivation on carbon sources that have been waste office paper and cardboard, humidified by no – carbon medium or distiled water. Cultivation took place in the SSF way in Erlenmeyer flasks and columns. Concentration of extracellular proteins, cellulase and protease activity for selected samples were monitored. It was found that the most advantageous method of cultivation in terms of cellulase activity production is the cultivation in the column washing by no – carbon medium in three day intervals.
Advisors/Committee Members: Omelková, Jiřina (advisor), Flodrová, Dana (referee).
Subjects/Keywords: Aspergillus niger; celulasa; solid – state fermentace (SSF); Aspergillus niger; cellulase; solid – state fermentation (SSF)
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Peterek, M. (2018). Využití odpadního papíru na mikrobiální produkci celuláz: The employment of waste paper to microbial production of cellulases. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/5583
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Peterek, Miroslav. “Využití odpadního papíru na mikrobiální produkci celuláz: The employment of waste paper to microbial production of cellulases.” 2018. Thesis, Brno University of Technology. Accessed January 19, 2021.
http://hdl.handle.net/11012/5583.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Peterek, Miroslav. “Využití odpadního papíru na mikrobiální produkci celuláz: The employment of waste paper to microbial production of cellulases.” 2018. Web. 19 Jan 2021.
Vancouver:
Peterek M. Využití odpadního papíru na mikrobiální produkci celuláz: The employment of waste paper to microbial production of cellulases. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/11012/5583.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Peterek M. Využití odpadního papíru na mikrobiální produkci celuláz: The employment of waste paper to microbial production of cellulases. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/5583
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology
5.
Řezáčová, Barbora.
Studium produkce hydrolytických enzymů pro zpracování celulosového odpadu: The study of production of hydrolytic enzymes for cellulose wastes treatment.
Degree: 2018, Brno University of Technology
URL: http://hdl.handle.net/11012/3216
► The study of production of hydrolytic enzymes dealt with the production of cellulase and polygalacturonase by two microbial strains - Aspergillus niger and Aureobasidium pullulans.…
(more)
▼ The study of production of hydrolytic enzymes dealt with the production of cellulase and polygalacturonase by two microbial strains - Aspergillus niger and Aureobasidium pullulans. The enzymes were produced in
solid-
state fermentation system. The wheat straw and sugar beet pulp were used as a substrate. The substrates were moistened by water, mineral solution or by medium with glucose. The effect of mineral solution and glucose on production of these enzymes were monitored during cultivation. The highest production of polygalacturonase was achieved by Aspergillus niger during cultivation on sugar beet pulp moistened by mineral solution. The highest production of cellulase was achieved by Aspergillus niger during cultivation on wheat straw moistened by medium with glucose.
Advisors/Committee Members: Omelková, Jiřina (advisor), Flodrová, Dana (referee).
Subjects/Keywords: Aspergillus niger; Aureobasidium pullulans; celulasa; polygalakturonasa; solid-state fermentation; Aspergillus niger; Aureobasidium pullulans; cellulase; polygalacturonase; solid-state fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Řezáčová, B. (2018). Studium produkce hydrolytických enzymů pro zpracování celulosového odpadu: The study of production of hydrolytic enzymes for cellulose wastes treatment. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/3216
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Řezáčová, Barbora. “Studium produkce hydrolytických enzymů pro zpracování celulosového odpadu: The study of production of hydrolytic enzymes for cellulose wastes treatment.” 2018. Thesis, Brno University of Technology. Accessed January 19, 2021.
http://hdl.handle.net/11012/3216.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Řezáčová, Barbora. “Studium produkce hydrolytických enzymů pro zpracování celulosového odpadu: The study of production of hydrolytic enzymes for cellulose wastes treatment.” 2018. Web. 19 Jan 2021.
Vancouver:
Řezáčová B. Studium produkce hydrolytických enzymů pro zpracování celulosového odpadu: The study of production of hydrolytic enzymes for cellulose wastes treatment. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/11012/3216.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Řezáčová B. Studium produkce hydrolytických enzymů pro zpracování celulosového odpadu: The study of production of hydrolytic enzymes for cellulose wastes treatment. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/3216
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology
6.
Habáníková, Kamila.
Využití odpadů rostlinného původu: Utilization of plant origin waste.
Degree: 2019, Brno University of Technology
URL: http://hdl.handle.net/11012/7431
► Production of cellulase and polygalacturonase by Aspergillus niger and Aureobasidium pullulans was studied in submerged (SmF) and solid state fermentation (SSF) systems. Substrates used in…
(more)
▼ Production of cellulase and polygalacturonase by Aspergillus niger and Aureobasidium pullulans was studied in submerged (SmF) and
solid state fermentation (SSF) systems. Substrates used in
fermentation systems were mandarin peels and grape pomace. With Aspergillus niger used on grape pomace as a sole carbon source, cellulase production was detected after 72 hours in SSF and after 24 hours in SmF systems. The activity of cellulase per gram of substrate was higher in a submerged than in a
solid state fermentation system. The longer time for higher polygalacturonase production was necessary in submerged
fermentation systems and polygalacturonase activity was higher in SmF. The SSF
fermentation with mandarin peels as a sole carbon source was similar, the highest detected activity of cellulase was determined after 72 hours. Different production of polygalacturonase was observed on mandarin peels in SmF systems. A comparison of enzyme productivities on grape pomace and mandarin peels showed that polygalacturonase activity per gram of substrate is highest in SmF system with mandarin peels as a sole carbon source. With Aureobasidium pullulans used on grape pomace as a sole carbon source, cellulase production was detected after 48 hours in SmF and SSF
fermentation systems. The activity of cellulase per gram of substrate was higher in
solid state system than in a submerged
fermentation system. Longer time for higher polygalacturonase production was necessary in both
fermentation systems. Polygalacturonase activity was higher in SmF. The SSF
fermentation with mandarin peels as a sole carbon source was similar, the highest detected activity of cellulase was determined after 48 hours. Different production of polygalacturonase was observed on mandarin peels in SmF systems. A comparison of enzyme productivities on grape pomace and mandarin peels showed that polygalacturonase activity per gram of substrate is highest in SmF system with mandarin peels as a sole carbon source. For both systems and both substrates manganese-dependent peroxidase was detected for the first time. Differences in the enzyme synthesis by Aspergillus niger and Aureobasidium pullulans depend on both the substrates used as well as on the
fermentation system.
Advisors/Committee Members: Omelková, Jiřina (advisor), Flodrová, Dana (referee).
Subjects/Keywords: Aspergillus niger; Aureobasidium pullulans; celulasa; pektinasa; mangan-dependentní peroxidasa; solid state fermentation; submerged fermentation; Aspergillus niger; Aureobasidium pullulans; cellulase; pectinase; manganese-dependent peroxidase; solid state fermentation; submerged fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Habáníková, K. (2019). Využití odpadů rostlinného původu: Utilization of plant origin waste. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/7431
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Habáníková, Kamila. “Využití odpadů rostlinného původu: Utilization of plant origin waste.” 2019. Thesis, Brno University of Technology. Accessed January 19, 2021.
http://hdl.handle.net/11012/7431.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Habáníková, Kamila. “Využití odpadů rostlinného původu: Utilization of plant origin waste.” 2019. Web. 19 Jan 2021.
Vancouver:
Habáníková K. Využití odpadů rostlinného původu: Utilization of plant origin waste. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/11012/7431.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Habáníková K. Využití odpadů rostlinného původu: Utilization of plant origin waste. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/7431
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Estadual de Campinas
7.
Costa, Max Adilson Lima, 1971-.
Estudo da precipitação com etanol de xilanases de complexos enzimáticos produzidos por Aspergillus niger em fermentação no estado sólido e fermentação submersa: Study of precipitation with etanol xylanase enzyme complex produced by Aspergillus niger in solid-state fermentatio and submerged fermentation.
Degree: 2016, Universidade Estadual de Campinas
URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/305515
► Abstract: Precipitation studies of xylanases produced by different microorganisms under solid-state fermentation or submerged fermentation have revealed quantitative and qualitative differences between the products obtained.…
(more)
▼ Abstract: Precipitation studies of xylanases produced by different microorganisms under
solid-
state fermentation or submerged
fermentation have revealed quantitative and qualitative differences between the products obtained. In the case of xylanase precipitation with ethanol high activity recovery is obtained only at high concentrations of the solvent. Due to the relevance of xylanases in the industrial scenario, especially in a biorefinary context, it is important to better characterize the production and the downstream processing of these enzymes. Therefore, the present study investigated ethanol precipitation of xylanases produced under
solid-
state and submerged
fermentation by Aspergillus niger. The concept of solutivity and the use of seeding was applied aiming to increase activity recovery and purity. Studies of thermal and pH stabilities of the xylanase complexes showed that these enzymes were highly stable in the range of 15-45 °C and pH in the range of 3.0-8.0. Experimental design was used to evaluate the effects of temperature, ethanol concentration and pH on the recovery of total protein and xylanase activity. Temperature had a negative effect on enzyme recovery while pH and ethanol concentration had a different effect for
solid-
state and submerged
fermentation. The kinetic profiles showed that a relatively short time (up to 15 min) was sufficient to recover most of the xylanase activity under the conditions tested (65 and 79% recovery for
solid-
state and submerged
fermentation, respectively). Studies in stirred tank allowed the determination of the xylanase solutivity and total protein solubility curves as function of ethanol concentration. These curves allowed the determination of a condition here called cutting operation point (COP). A two step precipitation based on this COP allowed the enrichment of the precipitate in terms of xylanase activity by a factor of about 2. The use of seeding showed a positive effect on the precipitation, increasing up to 21% the recovery of xylanase activity, indicating that this is a promising technique to be further investigated
Advisors/Committee Members: UNIVERSIDADE ESTADUAL DE CAMPINAS (CRUESP), Miranda, Everson Alves, 1959- (advisor), Universidade Estadual de Campinas. Faculdade de Engenharia Química (institution), Programa de Pós-Graduação em Engenharia Química (nameofprogram), [Coorientador], Cristiane Sanchez Farinas (committee member), Batista, Fabiana Regina Xavier (committee member), Bernardo, Andre (committee member), Costa, Aline Carvalho da (committee member), Hirata, Gisele Atsuko Medeiros (committee member).
Subjects/Keywords: Xilanases; Precipitação; Fermentação em estado sólido; Fermentação submersa; Xylanase; Precipitation; Solid-state fermentation; Submerged fermentation
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APA (6th Edition):
Costa, Max Adilson Lima, 1. (2016). Estudo da precipitação com etanol de xilanases de complexos enzimáticos produzidos por Aspergillus niger em fermentação no estado sólido e fermentação submersa: Study of precipitation with etanol xylanase enzyme complex produced by Aspergillus niger in solid-state fermentatio and submerged fermentation. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/305515
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Costa, Max Adilson Lima, 1971-. “Estudo da precipitação com etanol de xilanases de complexos enzimáticos produzidos por Aspergillus niger em fermentação no estado sólido e fermentação submersa: Study of precipitation with etanol xylanase enzyme complex produced by Aspergillus niger in solid-state fermentatio and submerged fermentation.” 2016. Thesis, Universidade Estadual de Campinas. Accessed January 19, 2021.
http://repositorio.unicamp.br/jspui/handle/REPOSIP/305515.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Costa, Max Adilson Lima, 1971-. “Estudo da precipitação com etanol de xilanases de complexos enzimáticos produzidos por Aspergillus niger em fermentação no estado sólido e fermentação submersa: Study of precipitation with etanol xylanase enzyme complex produced by Aspergillus niger in solid-state fermentatio and submerged fermentation.” 2016. Web. 19 Jan 2021.
Vancouver:
Costa, Max Adilson Lima 1. Estudo da precipitação com etanol de xilanases de complexos enzimáticos produzidos por Aspergillus niger em fermentação no estado sólido e fermentação submersa: Study of precipitation with etanol xylanase enzyme complex produced by Aspergillus niger in solid-state fermentatio and submerged fermentation. [Internet] [Thesis]. Universidade Estadual de Campinas; 2016. [cited 2021 Jan 19].
Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/305515.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Costa, Max Adilson Lima 1. Estudo da precipitação com etanol de xilanases de complexos enzimáticos produzidos por Aspergillus niger em fermentação no estado sólido e fermentação submersa: Study of precipitation with etanol xylanase enzyme complex produced by Aspergillus niger in solid-state fermentatio and submerged fermentation. [Thesis]. Universidade Estadual de Campinas; 2016. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/305515
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University
8.
Fontenelle, Linelle.
Solid State Fermentation Of Switchgrass Mixtures: Experimentation, Modeling And Analysis.
Degree: PhD, Chemical Engineering, 2011, Cornell University
URL: http://hdl.handle.net/1813/33568
► In this study, the aerobic microbial degradation of switchgrass mixtures was characterized based on biological, physical and chemical parameters both experimentally and via mathematical modeling.…
(more)
▼ In this study, the aerobic microbial degradation of switchgrass mixtures was characterized based on biological, physical and chemical parameters both experimentally and via mathematical modeling. Highly-instrumented 50L reactors were designed to facilitate better process control, online measurements and robust sampling for high temporal and spatial resolution. Switchgrass was amended with dog food and nitrogen fertilizer in C/N ratios of 15 and 18, respectively with initial moisture contents of 60 to 75% and biodegraded for 64 to 96h. Temperature and effluent gas concentrations were monitored online during the process and collected samples were analyzed for pH, moisture content, organic acid concentration, substrate composition and microbial community dynamics. A rapid technique for the extraction and purification of DNA from compost samples was developed and optimized. Real time PCR and probe hybridization procedures were also optimized for monitoring microbial community dynamics. Probe hybridization was used to monitor changes in the bacteria, fungi and yeast populations; the data from which was used to derive empirical parameters for process modeling, and real time PCR was used to measure changes in the gene copy numbers of bacteria, fungi, lactic acid bacteria and Aspergillus spp. Reactors were run in triplicate to test for process reproducibility. The results revealed that the reactors reproduced results well and that profiles obtained from different runs were similar to each other and to other generally accepted profiles. Of three moisture contents: 60, 65 and 75%, the highest level of activity was seen in the 75% reactor, suggesting that this system may have been operating near optimal moisture levels. Reactor height had a significant impact on the temperature and moisture content profiles and the bacterial population was found to be the driving force for carbon degradation in the process. Modeling the process using empirically derived microbial growth kinetics, substrate degradation kinetics and traditional heat and mass transfer equations resulted in model predictions that were in good agreement with the experimental data. It was also determined that using nitrogen fertilizer increased the initial rate of substrate degradation and after 96h, an average of18% of lignin, 24% of cellulose and 26% of hemicellulose had degraded.
Advisors/Committee Members: Walker, Larry P (chair), Shuler, Michael Louis (committee member), Hay, Anthony G. (committee member).
Subjects/Keywords: solid state fermentation; composting; switchgrass; probe hybridization; real time PCR
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fontenelle, L. (2011). Solid State Fermentation Of Switchgrass Mixtures: Experimentation, Modeling And Analysis. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/33568
Chicago Manual of Style (16th Edition):
Fontenelle, Linelle. “Solid State Fermentation Of Switchgrass Mixtures: Experimentation, Modeling And Analysis.” 2011. Doctoral Dissertation, Cornell University. Accessed January 19, 2021.
http://hdl.handle.net/1813/33568.
MLA Handbook (7th Edition):
Fontenelle, Linelle. “Solid State Fermentation Of Switchgrass Mixtures: Experimentation, Modeling And Analysis.” 2011. Web. 19 Jan 2021.
Vancouver:
Fontenelle L. Solid State Fermentation Of Switchgrass Mixtures: Experimentation, Modeling And Analysis. [Internet] [Doctoral dissertation]. Cornell University; 2011. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/1813/33568.
Council of Science Editors:
Fontenelle L. Solid State Fermentation Of Switchgrass Mixtures: Experimentation, Modeling And Analysis. [Doctoral Dissertation]. Cornell University; 2011. Available from: http://hdl.handle.net/1813/33568

Addis Ababa University
9.
HAILEMARIAM, FELEKE.
SMALL-SCALE CITRIC ACID PRODUCTION ON SOLID-STATE FERMENTATION USING ASPERGILLUS NIGER
.
Degree: 2012, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/294
► Citric acid is used in the food, beverage, pharmaceutical, chemical, cosmetic and other industries for applications such as acidulation, anti oxidation, flavour enhancement, preservation, and…
(more)
▼ Citric acid is used in the food, beverage, pharmaceutical, chemical, cosmetic and other industries
for applications such as acidulation, anti oxidation, flavour enhancement, preservation, and as a
synergistic agent. It is used to flavour the drinks, jams and jellies, candies, water ice and wines.
In recent years, a great deal of attention is given to alternative methods for citric acid production
using agro-industrial residues. A citric acid producing Aspergillus niger isolate designated as
ASGS was isolated from the Faculty of science Addis Ababa University green house soil. The
isolate produced citric acid in
solid state fermentation (SSF) using different agricultural products
and by products (Maize, Rice and wheat bran) as substrates. Out of the three substrates, rice(R)
was found to be better followed by the combination of wheat bran and rice (WR). The highest
level of citric acid (110.6g/kg DR) was produced in Rice, with Rice-to- moisture ratio of 1:4
(w/v) at 30 °C and 72 hr. The weakest substrate for citrate
fermentation was wheat bran with only
7g/kg citrate production. Maximum growth of the isolate was shown at 30◦c, it also showed
growth and biomass accumulation at 35◦c. Wrinkled, dense, white mycelium was observed in
the flask at 30◦c while at 25◦c was not shown. Citrate accumulation increased exponentially after
48hrs of
fermentation and the maximum citric acid (82.6g/kg DR) was obtained at 72hr which
declined gradually. Initial rice moisture content had a considerable effect on citric acid
production by ASGS. A maximum citric acid production (91g/kg DR) was obtained with 80%
moisture content. Citrate accumulation also increased significantly with increase in temperature
from 25 to 30◦c and production slightly declined up to 35◦c. The highest value of citric acid
concentration (98g/kg DR) was achieved at an initial pH of 4.5. Recovery trial yielded 1.2g citric
acid from 10g of dry rice substrate which was white and
solid crystalline.
Advisors/Committee Members: Dr. Dawit Abate (advisor).
Subjects/Keywords: Citric acid;
Solid state fermentation;
Aspergillus niger strain
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
HAILEMARIAM, F. (2012). SMALL-SCALE CITRIC ACID PRODUCTION ON SOLID-STATE FERMENTATION USING ASPERGILLUS NIGER
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/294
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
HAILEMARIAM, FELEKE. “SMALL-SCALE CITRIC ACID PRODUCTION ON SOLID-STATE FERMENTATION USING ASPERGILLUS NIGER
.” 2012. Thesis, Addis Ababa University. Accessed January 19, 2021.
http://etd.aau.edu.et/dspace/handle/123456789/294.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
HAILEMARIAM, FELEKE. “SMALL-SCALE CITRIC ACID PRODUCTION ON SOLID-STATE FERMENTATION USING ASPERGILLUS NIGER
.” 2012. Web. 19 Jan 2021.
Vancouver:
HAILEMARIAM F. SMALL-SCALE CITRIC ACID PRODUCTION ON SOLID-STATE FERMENTATION USING ASPERGILLUS NIGER
. [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Jan 19].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/294.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
HAILEMARIAM F. SMALL-SCALE CITRIC ACID PRODUCTION ON SOLID-STATE FERMENTATION USING ASPERGILLUS NIGER
. [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/294
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Addis Ababa University
10.
Gizachew, Haile Gidamo.
Alkaline protease production by an alkaliphilic bacterial isolate under solid state fermentation
.
Degree: 2012, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/1434
► A total of 240 alkaliphilic microorganisms isolated from samples collected from alkaline soda lakes of Ethiopia were screened for the production of alkaline proteases. Of…
(more)
▼ A total of 240 alkaliphilic microorganisms isolated from samples collected from alkaline soda lakes of
Ethiopia were screened for the production of alkaline proteases. Of these, 30% were protease positive
indicating the abundance of protease producing microorganisms in these habitats. This again is a
reflection of the abundance of protein substrates in the form of bird`s feather and left over from dead
cells of spirulina and other microorganisms. Out of the 80 protease positive isolates, 20 (25%) grew
well and produce appreciable level of enzyme activity when grown in
solid state culture. Of these, one
isolate designated as C45 was selected for further study. The protease produced by isolate C45 was
characterized to determine its potential industrial application. The enzyme was active in the pH range of
6.5-11.5, with optimum activity at pH 8-9; and stable at alkaline pH. The optimum temperature for
activity was 40°C and 50°C in absence and presence of 5mM of Ca+2, respectively. The enzyme
displayed appreciable activity and stability at low temperature. These properties suggest that protease
C45 could find potential application for dehairing and detergent at moderate temperature.
When
protease C45 was added to raw hide enabled dehairing, suggesting the potential usefulness of the
enzyme in the leather industry. The commercial application of enzymes greatly depends on the cost of
the enzyme which again is determined by the production cost of the enzyme. Currently most
commercially available enzymes are produced through capital intensive submerged
fermentation (SmF).
An alternative method for the growth of microorgianims which is currently receiving significant
attention is
solid state fermentation (SSF). In this study, isolate C45 was grown under
solid state
fermentation using wheat bran as the growth substrate. Maximum protease secretion was achieved at
inoculum size of 20% (v/w), bran to moistening agent ratio of 1:2 when incubated at 30°C for 144 hr.
Addition of inorganic nitrogen sources and organic carbon sources as a supplement of SSF medium
repressed protease induction. These results indicate that the microbial isolate shows a good potential for
production of low cost alkaline protease by using inexpensive substrate such as wheat bran alone and/or
low cost complex nitrogen source such as Millettia ferruginea (Berbra) seed flour as supplement in
SSF.
Advisors/Committee Members: Amare Gessesse (PhD) (advisor).
Subjects/Keywords: Alkaline protease;
isolate C45;
Solid state fermentation (SSF)
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gizachew, H. G. (2012). Alkaline protease production by an alkaliphilic bacterial isolate under solid state fermentation
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/1434
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Gizachew, Haile Gidamo. “Alkaline protease production by an alkaliphilic bacterial isolate under solid state fermentation
.” 2012. Thesis, Addis Ababa University. Accessed January 19, 2021.
http://etd.aau.edu.et/dspace/handle/123456789/1434.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gizachew, Haile Gidamo. “Alkaline protease production by an alkaliphilic bacterial isolate under solid state fermentation
.” 2012. Web. 19 Jan 2021.
Vancouver:
Gizachew HG. Alkaline protease production by an alkaliphilic bacterial isolate under solid state fermentation
. [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Jan 19].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/1434.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gizachew HG. Alkaline protease production by an alkaliphilic bacterial isolate under solid state fermentation
. [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/1434
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester
11.
Cao, Yu.
Towards a Fundamental Understanding of Solid State
Bioprocessing.
Degree: 2019, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:318309
► Solid state fermentation and solid state bioprocessing have been recognised for their unique features. However, there are several unsolved challenges which have prevented their widespread…
(more)
▼ Solid state fermentation and
solid state
bioprocessing have been recognised for their unique features.
However, there are several unsolved challenges which have prevented
their widespread adoptions. In order to address these challenges,
an investigation has been conducted, aiming at both identifying and
addressing the problems. Two common applications of
solid state
bioprocessing, namely reducing toxins in raw materials and
producing generic microbial feedstocks, were studied and are
reported in Part A of the thesis (Chapter 3 and Chapter 4). The
findings reported in Chapter 3 show that by applying a two stage
solid state bioprocess, the major toxin in rapeseed meal can be
reduced to a level suitable for animal consumption. The first
stage, pre-incubation, greatly assisted toxin reduction in the
second stage (
fermentation), through the addition of water into the
substrate. Although the exact mechanisms were not elucidated, it
was clear that water is a critical factor in the process. In
Chapter 4, a three stage
solid state bioprocess was used to produce
a generic microbial feedstock from mixed rapeseed meal and
sugarcane bagasse. The main findings from this study were that such
processes are highly variable, and that the performance of
solid
state fermentation is highly influenced by the microscopic
environment of the microorganism. This led to the conclusion that a
more fundamental understanding of the system is required. To obtain
a better fundamental understanding, the effect of water on fungi
cultivated on
solid substrates (water bioavailability), was
investigated in Part B of the thesis which includes theoretical and
experimental investigations. The following theory has been
developed from the findings. “Fungal growth can only consume
water from the surrounding local micro-environment. As germination
and growth occur, they result in a modest depletion of water from
the immediate vicinity. This creates a driving force for water to
migrate from the bulk substrate (usually through diffusion), or to
be absorbed from the gas phase, to replenish the water that has
been consumed. The driving force within the substrate increases
with fungal water consumption, while water absorption from the gas
phase is driven both by the gas phase relative humidity and
presence/absence of water at the substrate surface. Meanwhile, the
resistance to mass transfer is greatly affected by both chemical
and physical properties of the substrate. Fungal growth can
continue, if, and only if water within their immediate vicinity can
be replenished.†Experiments showed that water bioavailability
cannot be fully represented by terms such as “water content†and
“water activityâ€, but is affected by the presence of water in
the immediate vicinity of the fungus. This is under the influence
of substrate chemical properties and consequently affects
germination and early growth. It is also affected by mobility of
water through the substrate which impacts on growth rate in the
absence of gas phase water. Further, if there is water in the gas…
Advisors/Committee Members: SAIANI, ALINE AF, Webb, Colin, Saiani, Aline.
Subjects/Keywords: Solid state fermentation; Water; Dynamic vapour sorption; Microbial activity; filamentous fungi
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cao, Y. (2019). Towards a Fundamental Understanding of Solid State
Bioprocessing. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:318309
Chicago Manual of Style (16th Edition):
Cao, Yu. “Towards a Fundamental Understanding of Solid State
Bioprocessing.” 2019. Doctoral Dissertation, University of Manchester. Accessed January 19, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:318309.
MLA Handbook (7th Edition):
Cao, Yu. “Towards a Fundamental Understanding of Solid State
Bioprocessing.” 2019. Web. 19 Jan 2021.
Vancouver:
Cao Y. Towards a Fundamental Understanding of Solid State
Bioprocessing. [Internet] [Doctoral dissertation]. University of Manchester; 2019. [cited 2021 Jan 19].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:318309.
Council of Science Editors:
Cao Y. Towards a Fundamental Understanding of Solid State
Bioprocessing. [Doctoral Dissertation]. University of Manchester; 2019. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:318309

University of Manitoba
12.
Mengmeng, Tian.
Optimization of enzyme production from food waste using Aspergillus sp.
Degree: Civil Engineering, 2016, University of Manitoba
URL: http://hdl.handle.net/1993/32335
► This study aimed to 1) investigate the feasibility of using SSF to treat food processing waste and food waste, 2) optimize the conditions for enzyme…
(more)
▼ This study aimed to 1) investigate the feasibility of using SSF to treat food processing waste and food waste, 2) optimize the conditions for enzyme production during SSF.
The results showed that pH, inoculum level, and moisture content did not significantly vary phytase production. However, different incubation periods, incubation temperatures, nitrogen sources, and carbon sources changed the phytase production significantly. The optimal conditions for phytase production consisted of a normal moisture content (79%) of potato waste, 1.0 mL inoculum size, and normal pH 6.1 at room temperature with an incubation time of 144 hrs. The highest phytase activity (5.17 ± 0.82 U/g ds) was obtained under the optimal conditions. When (NH4)2SO4 was used as a nitrogen source in the substrate, phytase activity increased to 12.93 ± 0.47 U/g ds, which was a 2.5-fold increase as compared with the control treatment.
The results showed that all the fungi, except for strain F1-20-35A, had cellulase and xylanase production activities. In SSF process, the strain F2-20-44A showed the highest level of extracellular cellulase and xylanase activities, which are 17.37 ± 3.76 U/g ds and 189.24 ± 2.96 U/g ds, respectively. Moreover, treatment with normal moisture content (77%), 0.5 mL inoculum level at 25 ℃ incubation temperature for 6 days was the most efficient conditions for cellulase and xylanase productions (28.81 ± 0.67 U/g ds and 213.47 ± 10.66 U/g ds, respectively). Identification placed this strain within the Genus Aspergillus.
In conclusion, this study demonstrated that strain Aspergillus sp. can be potentially used for enzyme production and proposed a new and economical method to produce high value enzymes using food waste by SSF. Turning food waste to enzymes could potentially alleviate environmental issues caused by food waste while leading to new revenue streams.
Advisors/Committee Members: Yuan, Qiuyan (Civil Engineering) (supervisor), Munz, Giulio (Civil Engineering).
Subjects/Keywords: Solid state fermentation; Optimization; Food waste; Potato waste; Enzyme
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mengmeng, T. (2016). Optimization of enzyme production from food waste using Aspergillus sp. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/32335
Chicago Manual of Style (16th Edition):
Mengmeng, Tian. “Optimization of enzyme production from food waste using Aspergillus sp.” 2016. Masters Thesis, University of Manitoba. Accessed January 19, 2021.
http://hdl.handle.net/1993/32335.
MLA Handbook (7th Edition):
Mengmeng, Tian. “Optimization of enzyme production from food waste using Aspergillus sp.” 2016. Web. 19 Jan 2021.
Vancouver:
Mengmeng T. Optimization of enzyme production from food waste using Aspergillus sp. [Internet] [Masters thesis]. University of Manitoba; 2016. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/1993/32335.
Council of Science Editors:
Mengmeng T. Optimization of enzyme production from food waste using Aspergillus sp. [Masters Thesis]. University of Manitoba; 2016. Available from: http://hdl.handle.net/1993/32335

Kwame Nkrumah University of Science and Technology
13.
Otu, Solomon Ayeboafo.
Comparative effect of crude pectinase and commercial enzymes in Shea fat extraction.
Degree: 2015, Kwame Nkrumah University of Science and Technology
URL: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/8160
► Pectinases are one of the most used enzymes in food industry. Enzymes are widely used to improve upon process parameters such as product yield and…
(more)
▼ Pectinases are one of the most used enzymes in food industry. Enzymes are widely used to improve upon process parameters such as product yield and rate of product formation. Such biotechnological applications are not currently exploited by most industries in Ghana. The objective of the study was to determine the efficacy of locally produced pectinases from S. cerevisiae and other commercial enzymes in the extraction processes of shea butter. The crude pectinase was produced using corn cobs as a substrate and the microorganism Saccharomyces cerevisiae ATCC 52712 in a solid state fermentation process for four days. The crude pectinase had optimal protein concentration of 7 mg/ml with enzyme specific activity of 0.130 U/mg. The commercial enzymes were Viscozyme L (beta endo- 1, 3 (4)-glucanase activity with declared activity of 100 FBG/g as well as side activities of xylanase, cellulase and hemicellulases) and Pectinex 5XL (polygalacturonase activity with declared activity of 4500 PECTU/ml as well as arabinase side activity). The following operational parameters: water to seed (w/s) ratio, pH, hydrolysis time, enzyme dosage and temperature were optimized for better oil recover. The optimum w/s ratio in the present study was 4:1 for the enzymes and 2:1 for the control. The study revealed that the crude pectinase works under a wide range of pH. Crude Pectinase exhibited maximum activity at pH range of 3 to 6. Commercial Pectinex and Viscozyme showed maximum activity at pH range of 4 to 6. The maximum oil yield for crude pectinases and commercial Pectinex was obtained at 90 minutes and that of Viscozyme treated seed was observed at 60 minutes incubation time. When all parameters were optimized, the control gave an optimum oil recovery of 40 % while the application of the crude pectinase gave an optimum oil recovery of 44 % with an enzyme dosage of 1.2 %. The commercial Pectinex and commercial Viscozyme gave optimum oil recovery of 58.6 % and 72.0 % respectively at enzyme dosage of 0.8 %. Analyses of the proximate composition of the residues revealed that with the exception of protein, no significant variations were observed for the fiber and ash content. The physicochemical characteristics of the extracted oils such as Density, Moisture, Sample melting point (SMP), Unsaponifiable matter (UM) with the exception of the fatty acids (FFA) and peroxide value (PV), were not significantly affected (P ˃ 0.05) by the type of enzyme used. These results indicate the possible use of crude pectinase to improve shea fat extraction processes in Ghana if the enzymes are made available.
A thesis submitted to The Department of Biochemistry And Biotechnology in partial fulfilment of the requirements for the award of the degree of
Master of Science in Biotechnology, 2015
KNUST
Subjects/Keywords: Aqueous extraction; crude pectinase; corn cobs; Saccharomyces cerevisiae; solid state fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Otu, S. A. (2015). Comparative effect of crude pectinase and commercial enzymes in Shea fat extraction. (Thesis). Kwame Nkrumah University of Science and Technology. Retrieved from http://dspace.knust.edu.gh:8080/jspui/handle/123456789/8160
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Otu, Solomon Ayeboafo. “Comparative effect of crude pectinase and commercial enzymes in Shea fat extraction.” 2015. Thesis, Kwame Nkrumah University of Science and Technology. Accessed January 19, 2021.
http://dspace.knust.edu.gh:8080/jspui/handle/123456789/8160.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Otu, Solomon Ayeboafo. “Comparative effect of crude pectinase and commercial enzymes in Shea fat extraction.” 2015. Web. 19 Jan 2021.
Vancouver:
Otu SA. Comparative effect of crude pectinase and commercial enzymes in Shea fat extraction. [Internet] [Thesis]. Kwame Nkrumah University of Science and Technology; 2015. [cited 2021 Jan 19].
Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/8160.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Otu SA. Comparative effect of crude pectinase and commercial enzymes in Shea fat extraction. [Thesis]. Kwame Nkrumah University of Science and Technology; 2015. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/8160
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester
14.
Cao, Yu.
Towards a fundamental understanding of solid state bioprocessing.
Degree: PhD, 2019, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/towards-a-fundamental-understanding-of-solid-state-bioprocessing(6ca6322e-3e22-48a9-a19b-2cc624a4bc34).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791238
► Solid state fermentation and solid state bioprocessing have been recognised for their unique features. However, there are several unsolved challenges which have prevented their widespread…
(more)
▼ Solid state fermentation and solid state bioprocessing have been recognised for their unique features. However, there are several unsolved challenges which have prevented their widespread adoptions. In order to address these challenges, an investigation has been conducted, aiming at both identifying and addressing the problems. Two common applications of solid state bioprocessing, namely reducing toxins in raw materials and producing generic microbial feedstocks, were studied and are reported in Part A of the thesis (Chapter 3 and Chapter 4). The findings reported in Chapter 3 show that by applying a two stage solid state bioprocess, the major toxin in rapeseed meal can be reduced to a level suitable for animal consumption. The first stage, pre-incubation, greatly assisted toxin reduction in the second stage (fermentation), through the addition of water into the substrate. Although the exact mechanisms were not elucidated, it was clear that water is a critical factor in the process. In Chapter 4, a three stage solid state bioprocess was used to produce a generic microbial feedstock from mixed rapeseed meal and sugarcane bagasse. The main findings from this study were that such processes are highly variable, and that the performance of solid state fermentation is highly influenced by the microscopic environment of the microorganism. This led to the conclusion that a more fundamental understanding of the system is required. To obtain a better fundamental understanding, the effect of water on fungi cultivated on solid substrates (water bioavailability), was investigated in Part B of the thesis which includes theoretical and experimental investigations. The following theory has been developed from the findings. Fungal growth can only consume water from the surrounding local micro-environment. As germination and growth occur, they result in a modest depletion of water from the immediate vicinity. This creates a driving force for water to migrate from the bulk substrate (usually through diffusion), or to be absorbed from the gas phase, to replenish the water that has been consumed. The driving force within the substrate increases with fungal water consumption, while water absorption from the gas phase is driven both by the gas phase relative humidity and presence/absence of water at the substrate surface. Meanwhile, the resistance to mass transfer is greatly affected by both chemical and physical properties of the substrate. Fungal growth can continue, if, and only if water within their immediate vicinity can be replenished. Experiments showed that water bioavailability cannot be fully represented by terms such as 'water content' and 'water activity' but is affected by the presence of water in the immediate vicinity of the fungus. This is under the influence of substrate chemical properties and consequently affects germination and early growth. It is also affected by mobility of water through the substrate which impacts on growth rate in the absence of gas phase water. Further, if there is water in the gas phase, it can…
Subjects/Keywords: Microbial activity; Solid state fermentation; Water; Dynamic vapour sorption; filamentous fungi
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APA ·
Chicago ·
MLA ·
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APA (6th Edition):
Cao, Y. (2019). Towards a fundamental understanding of solid state bioprocessing. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/towards-a-fundamental-understanding-of-solid-state-bioprocessing(6ca6322e-3e22-48a9-a19b-2cc624a4bc34).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791238
Chicago Manual of Style (16th Edition):
Cao, Yu. “Towards a fundamental understanding of solid state bioprocessing.” 2019. Doctoral Dissertation, University of Manchester. Accessed January 19, 2021.
https://www.research.manchester.ac.uk/portal/en/theses/towards-a-fundamental-understanding-of-solid-state-bioprocessing(6ca6322e-3e22-48a9-a19b-2cc624a4bc34).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791238.
MLA Handbook (7th Edition):
Cao, Yu. “Towards a fundamental understanding of solid state bioprocessing.” 2019. Web. 19 Jan 2021.
Vancouver:
Cao Y. Towards a fundamental understanding of solid state bioprocessing. [Internet] [Doctoral dissertation]. University of Manchester; 2019. [cited 2021 Jan 19].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/towards-a-fundamental-understanding-of-solid-state-bioprocessing(6ca6322e-3e22-48a9-a19b-2cc624a4bc34).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791238.
Council of Science Editors:
Cao Y. Towards a fundamental understanding of solid state bioprocessing. [Doctoral Dissertation]. University of Manchester; 2019. Available from: https://www.research.manchester.ac.uk/portal/en/theses/towards-a-fundamental-understanding-of-solid-state-bioprocessing(6ca6322e-3e22-48a9-a19b-2cc624a4bc34).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791238

University of Sydney
15.
Mahanama, Raja Manthreegedara Hasitha Rukmal.
Solid State Fermentation of Bacillus subtilis to Produce Menaquinone7 (Vitamin K2)
.
Degree: 2013, University of Sydney
URL: http://hdl.handle.net/2123/9360
► Vitamins are required by organisms as vital nutrients in limited amounts as they cannot be synthesized in vivo. Many vitamins and related compounds are now…
(more)
▼ Vitamins are required by organisms as vital nutrients in limited amounts as they cannot be synthesized in vivo. Many vitamins and related compounds are now industrially produced, and are widely used as food or feed additives, medical or therapeutic agents, complementary health products or cosmetics. The consumption of a particular form of vitamin K, namely Menaquinone 7 (MK7), as part of the diet shows a correlation with reduced risk of bone fractures and of some cardiovascular disorders. The concentration of MK7 in food products is low and, hence, there may be a benefit for supplementary MK7. MK7 production in Solid state fermentation (SSF) has received only limited attention in the open literature, in spite of natto production being hundreds of years old. The aim of this thesis is to assess the feasibility of enhancing the concentration of MK7 from SSF for the large scale production of a MK7 rich fermented food supplement. This process eliminates the expensive organic solvent extraction used to purify MK7, which is unlikely to be economical for animal vitamin production. Static and dynamic SSF for MK7 production were scaled up after initial screening studies. A novel, custom made concentric Rotating Drum Bioreactor (RDB) (3 kg) and packed bed fermenter (4 kg) were designed in house and fabricated for large scale studies. By using the scaled up RDB and packed bed reactor, MK7 production was scaled up from 10 g in bench scale to 4 kg. Mathematical models derived for the prediction of process variables will be important tools in the design and optimization of performance of large scale SSF bioreactors. This study contributed appreciably to the understanding of the operation of RDBs and packed bed for MK7 production in SSF which are critical for further development of industrial level MK7 production.
Subjects/Keywords: Solid state fermentation;
Menaquinone 7;
Bacillus subtilis natto
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mahanama, R. M. H. R. (2013). Solid State Fermentation of Bacillus subtilis to Produce Menaquinone7 (Vitamin K2)
. (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/9360
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mahanama, Raja Manthreegedara Hasitha Rukmal. “Solid State Fermentation of Bacillus subtilis to Produce Menaquinone7 (Vitamin K2)
.” 2013. Thesis, University of Sydney. Accessed January 19, 2021.
http://hdl.handle.net/2123/9360.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mahanama, Raja Manthreegedara Hasitha Rukmal. “Solid State Fermentation of Bacillus subtilis to Produce Menaquinone7 (Vitamin K2)
.” 2013. Web. 19 Jan 2021.
Vancouver:
Mahanama RMHR. Solid State Fermentation of Bacillus subtilis to Produce Menaquinone7 (Vitamin K2)
. [Internet] [Thesis]. University of Sydney; 2013. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/2123/9360.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mahanama RMHR. Solid State Fermentation of Bacillus subtilis to Produce Menaquinone7 (Vitamin K2)
. [Thesis]. University of Sydney; 2013. Available from: http://hdl.handle.net/2123/9360
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
16.
Prevot, Vincent.
Comparaison de la production de complexes enzymatiques par fermentation en milieu solide et par fermentation en milieu liquide : Comparison of the production of enzymatic complexes by solid-state fermentation and by liquid state fermentation.
Degree: Docteur es, Sciences - STS, 2013, Reims
URL: http://www.theses.fr/2013REIMS009
► La fermentation en milieu solide est un bioprocédé pouvant éventuellement être utilisé comme technologie de rupture pour diminuer le coût des biocatalyseurs utilisés dans la…
(more)
▼ La fermentation en milieu solide est un bioprocédé pouvant éventuellement être utilisé comme technologie de rupture pour diminuer le coût des biocatalyseurs utilisés dans la conversion de biomasse lignocellulosique comme le son de blé. La première partie de ces travaux de recherche a donc étudié le potentiel de cette technologie par rapport à celle de fermentation en milieu submergé lors d'une comparaison en application. Plusieurs tests de saccharification ont ainsi été réalisés sur différentes matières premières (cellulose, son de blé) et ont permis de montrer l'avantage différentiateur des biocatalyseurs produits par fermentation en milieu solide. Ensuite, la deuxième partie de ces travaux de recherche a porté sur l'étude des facteurs de la récalcitrance du son de blé à l'hydrolyse enzymatique. Deux principaux facteurs ont ainsi pu être démontrés : un facteur physique, lié à l'accessibilité des biocatalyseurs aux polysaccharides, et un facteur biochimique, lié à l'absence ou à la faible présence de certaines activités enzymatiques (féruloyl estérase,…) dans le complexe enzymatique de Trichoderma reesei Rut-C30. Cette étude a également permis d'identifier l'origine des différentes fractions glucidiques hydrolysées et de déterminer le potentiel glucidique actuellement hydrolysable à partir de cette biomasse. Enfin, la dernière partie de ces travaux de recherche a été consacrée à l'étude pratique d'un concept innovant de procédé permettant de favoriser la conversion des polysaccharides contenus dans le son de blé. Une levée de la barrière physique au transfert de masse et par conséquent une validation de ce concept a finalement pu être réalisée.
Solid-state fermentation is a bioprocess that can optionally be used as disruptive technology to reduce the cost of biocatalysts used in the lignocellulosic biomass conversion like wheat bran. The first part of this research has explored the potential of this technology compared to submerged fermentation in an application comparison. Several saccharification tests have thus been carried on different feedstocks (cellulose, wheat bran) and have shown the differentiator advantage of biocatalysts produced by solid state fermentation. Then, the second part of this research has investigated the recalcitrance factors of wheat bran to enzymatic hydrolysis. Two main factors have thus been demonstrated: a physical factor, related to the accessibility of biocatalysts to the polysaccharides, and a biochemical factor, related to the absence or the low presence of some enzymatic activities (feruloyl esterase, ...) in the enzymatic complex of Trichoderma reesei Rut-C30. This study has also identified the origin of the various carbohydrate moieties hydrolyzed and has determined the carbohydrate potential currently releasable from this biomass. Finally, the last part of this research has been devoted to the practical study of an innovative concept of process to promote the conversion of polysaccharides in wheat bran. A removal of the physical barrier to mass transfer and therefore a…
Advisors/Committee Members: Duchiron, Francis (thesis director).
Subjects/Keywords: Fermentation en milieu solide; Fermentation en milieu submergé; Comparaison; Lignocellulose; Son de blé; Trichoderma reesei; Solid-state fermentation; Submerged fermentation; Comparison; Lignocellulose; Wheat bran; Trichoderma reesei
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Prevot, V. (2013). Comparaison de la production de complexes enzymatiques par fermentation en milieu solide et par fermentation en milieu liquide : Comparison of the production of enzymatic complexes by solid-state fermentation and by liquid state fermentation. (Doctoral Dissertation). Reims. Retrieved from http://www.theses.fr/2013REIMS009
Chicago Manual of Style (16th Edition):
Prevot, Vincent. “Comparaison de la production de complexes enzymatiques par fermentation en milieu solide et par fermentation en milieu liquide : Comparison of the production of enzymatic complexes by solid-state fermentation and by liquid state fermentation.” 2013. Doctoral Dissertation, Reims. Accessed January 19, 2021.
http://www.theses.fr/2013REIMS009.
MLA Handbook (7th Edition):
Prevot, Vincent. “Comparaison de la production de complexes enzymatiques par fermentation en milieu solide et par fermentation en milieu liquide : Comparison of the production of enzymatic complexes by solid-state fermentation and by liquid state fermentation.” 2013. Web. 19 Jan 2021.
Vancouver:
Prevot V. Comparaison de la production de complexes enzymatiques par fermentation en milieu solide et par fermentation en milieu liquide : Comparison of the production of enzymatic complexes by solid-state fermentation and by liquid state fermentation. [Internet] [Doctoral dissertation]. Reims; 2013. [cited 2021 Jan 19].
Available from: http://www.theses.fr/2013REIMS009.
Council of Science Editors:
Prevot V. Comparaison de la production de complexes enzymatiques par fermentation en milieu solide et par fermentation en milieu liquide : Comparison of the production of enzymatic complexes by solid-state fermentation and by liquid state fermentation. [Doctoral Dissertation]. Reims; 2013. Available from: http://www.theses.fr/2013REIMS009

University of Kentucky
17.
Zhuang, Jun.
ECONOMIC ANALYSIS OF CELLULASE PRODUCTION BY CLOSTRIDIUM THERMOCELLUM IN SOLID STATE AND SUBMERGED FERMENTATION.
Degree: 2004, University of Kentucky
URL: https://uknowledge.uky.edu/gradschool_theses/170
► Dependence on foreign oil remains a serious issue for the U.S. economy. Additionally, automobile emissions related to petroleum-based, fossil fuel has been cited as one…
(more)
▼ Dependence on foreign oil remains a serious issue for the U.S. economy. Additionally, automobile emissions related to petroleum-based, fossil fuel has been cited as one source of environmental problems, such as global warming and reduced air quality. Using agricultural and forest biomass as a source for the biofuel ethanol industry, provides a partial solution by displacing some fossil fuels. However, the use of high cost enzymes as an input is a significant limitation for ethanol production.Economic analyses of cellulase enzyme production costs using solid state cultivation (SSC) are performed and compared to the traditional submerged fermentation (SmF) method. Results from this study indicate that the unit costs for the cellulase enzyme production are 15.67 per kilogram (/kg) and 40.36/kg, for the SSC and SmF methods, respectively, while the market price for the cellulase enzyme is 36.00/kg. Profitability analysis and sensitivity analysis also provide positive results.Since these results indicate that the SSC method is economical, ethanol production costs may be reduced, with the potential to make ethanol a viable supplemental fuel source in light of current political, economic and environmental issues.
Subjects/Keywords: Biomass; Ethanol; Enzyme Production; Solid State Fermentation; Submerged Fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zhuang, J. (2004). ECONOMIC ANALYSIS OF CELLULASE PRODUCTION BY CLOSTRIDIUM THERMOCELLUM IN SOLID STATE AND SUBMERGED FERMENTATION. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/gradschool_theses/170
Chicago Manual of Style (16th Edition):
Zhuang, Jun. “ECONOMIC ANALYSIS OF CELLULASE PRODUCTION BY CLOSTRIDIUM THERMOCELLUM IN SOLID STATE AND SUBMERGED FERMENTATION.” 2004. Masters Thesis, University of Kentucky. Accessed January 19, 2021.
https://uknowledge.uky.edu/gradschool_theses/170.
MLA Handbook (7th Edition):
Zhuang, Jun. “ECONOMIC ANALYSIS OF CELLULASE PRODUCTION BY CLOSTRIDIUM THERMOCELLUM IN SOLID STATE AND SUBMERGED FERMENTATION.” 2004. Web. 19 Jan 2021.
Vancouver:
Zhuang J. ECONOMIC ANALYSIS OF CELLULASE PRODUCTION BY CLOSTRIDIUM THERMOCELLUM IN SOLID STATE AND SUBMERGED FERMENTATION. [Internet] [Masters thesis]. University of Kentucky; 2004. [cited 2021 Jan 19].
Available from: https://uknowledge.uky.edu/gradschool_theses/170.
Council of Science Editors:
Zhuang J. ECONOMIC ANALYSIS OF CELLULASE PRODUCTION BY CLOSTRIDIUM THERMOCELLUM IN SOLID STATE AND SUBMERGED FERMENTATION. [Masters Thesis]. University of Kentucky; 2004. Available from: https://uknowledge.uky.edu/gradschool_theses/170
18.
Rouches, Elsa.
Impact de prétraitements fongiques sur la méthanisation de la biomasse lignocellulosique, caractérisation des substrats transformés : Fungal pretreatment for lignocellulosic biomass anaerobic digestion.
Degree: Docteur es, Génie des procédés, 2015, Montpellier
URL: http://www.theses.fr/2015MONTS113
► La méthanisation de la biomasse lignocellulosique est un des moyens les plus efficients pour la production d’énergie renouvelable. Cependant, la lignine présente dans cette biomasse…
(more)
▼ La méthanisation de la biomasse lignocellulosique est un des moyens les plus efficients pour la production d’énergie renouvelable. Cependant, la lignine présente dans cette biomasse est difficile à hydrolyser. Cette limite peut être surmontée grâce aux prétraitements. Parmi eux, les prétraitements peu couteux par pourritures blanches sont attrayants mais ils ont été peu appliqués pour la digestion anaérobie. La présente étude explore les prétraitements par pourritures blanches de la paille de blé afin d’en améliorer sa méthanisation. Tout d’abord, une étape de sélection a révélé l’efficacité de la souche Polyporus brumalis BRFM 985 puisque 43% de méthane supplémentaire ont été obtenus par gramme de matières volatiles par comparaison avec la paille témoin. En prenant en compte les pertes de matières occasionnées par le prétraitement, cela correspondait à 21 % d’amélioration par gramme de matière sèche initiale. De plus, il a été montré que l’addition de glucose durant le prétraitement limitait la délignification et donc la production de méthane du substrat. Puis, des échantillons prétraités furent obtenus lors d’un plan d’expérience visant à optimiser le prétraitement par P. brumalis BRFM 985 ; les paramètres du prétraitement testés étaient : la durée et la température de culture, l’humidité initiale du substrat et l’addition de métaux. Les surfaces de réponse de la production de méthane à partir de ces échantillons furent construites. La production optimale de méthane ne fut pas atteinte dans le domaine expérimental testé mais l’impact positif de l’addition de métaux fut démontré, ainsi que l’importance de choisir une durée de culture adaptée. Ensuite, l’usage de la technique de la pyrolyse-GC-MS pour évaluer l’efficacité du prétraitement fut étudié. Une estimation de la quantité de biomasse fongique avec cette méthode apparaît possible. Le ratio polysaccharides/lignine déterminé par py-GC-MS a permis de classer des échantillons prétraités selon leur biodégradabilité anaérobie. La digestion anaérobie en voie sèche (DAVS) de paille de blé prétraitée en réacteur pilote fut menée en batch avec recirculation des lixiviats. Durant le démarrage de la DAVS, un trop fort S/I mène à une accumulation d’acides gras volatils (AGV) et parfois à la défaillance de la DAVS. Néanmoins, de forts S/I permettent de traiter plus de substrat et augmentent la production de méthane par volume de réacteur. Avec la paille de blé, des S/I entre 2 et 3 (en matières volatiles) permettent un bon démarrage de la DAVS. Alors qu’un ratio AGV totaux/alcalinité inférieur à 0,6 correspond à des réacteurs stables en digestion anaérobie voie liquide ; cette limite semble mal adaptée à la DAVS. Il fut observé que la DAVS pouvait récupérer d’une phase d’acidification tant que le ratio AGV totaux/alcalinité était inférieur à 2 et que la concentration en AGV était inférieure à 10 g/L dans les lixiviats. Malgré une amélioration de la biodégradabilité et une phase de démarrage facilitée, le prétraitement fongique non optimisé ne permit pas d’améliorer la…
Advisors/Committee Members: Carrère, Hélène (thesis director).
Subjects/Keywords: Méthanisation; Paille de blé; Pourritures blanches; Conditions de culture; Fermentation en milieu solide; Méthane; Solid State Anaerobic Digestion; Wheat straw; White-Rot Fungi; Culture conditions; Solid-State-Fermentation; Methane
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Rouches, E. (2015). Impact de prétraitements fongiques sur la méthanisation de la biomasse lignocellulosique, caractérisation des substrats transformés : Fungal pretreatment for lignocellulosic biomass anaerobic digestion. (Doctoral Dissertation). Montpellier. Retrieved from http://www.theses.fr/2015MONTS113
Chicago Manual of Style (16th Edition):
Rouches, Elsa. “Impact de prétraitements fongiques sur la méthanisation de la biomasse lignocellulosique, caractérisation des substrats transformés : Fungal pretreatment for lignocellulosic biomass anaerobic digestion.” 2015. Doctoral Dissertation, Montpellier. Accessed January 19, 2021.
http://www.theses.fr/2015MONTS113.
MLA Handbook (7th Edition):
Rouches, Elsa. “Impact de prétraitements fongiques sur la méthanisation de la biomasse lignocellulosique, caractérisation des substrats transformés : Fungal pretreatment for lignocellulosic biomass anaerobic digestion.” 2015. Web. 19 Jan 2021.
Vancouver:
Rouches E. Impact de prétraitements fongiques sur la méthanisation de la biomasse lignocellulosique, caractérisation des substrats transformés : Fungal pretreatment for lignocellulosic biomass anaerobic digestion. [Internet] [Doctoral dissertation]. Montpellier; 2015. [cited 2021 Jan 19].
Available from: http://www.theses.fr/2015MONTS113.
Council of Science Editors:
Rouches E. Impact de prétraitements fongiques sur la méthanisation de la biomasse lignocellulosique, caractérisation des substrats transformés : Fungal pretreatment for lignocellulosic biomass anaerobic digestion. [Doctoral Dissertation]. Montpellier; 2015. Available from: http://www.theses.fr/2015MONTS113

Brno University of Technology
19.
Vadovičová, Natália.
Využití odpadních materiálů k přípravě hydrolyzátů pro fermentační fázi.: Waste materials utilization for preparing hydrolysates for the fermentation phase.
Degree: 2019, Brno University of Technology
URL: http://hdl.handle.net/11012/58932
► Bachelor thesis focuses on the study and comparison of different types of hydrolysis, their optimization and maximization of yields for the upcoming fermentation. Orange peel…
(more)
▼ Bachelor thesis focuses on the study and comparison of different types of hydrolysis, their optimization and maximization of yields for the upcoming
fermentation. Orange peel was chosen as a substrate to conduct the experiments. First, the substrate was mechanically grinded to form a suspension. Each suspension then underwent one out of the examined methods of hydrolysis. Chosen methods were physical, such as microwaves, increased temperature or ultrasound, and chemical acidic and alkaline. Combinations of both types were also examined. The last optimized method was enzymatic hydrolysis. First set of experiments was conducted using enzymes Novozymes® NS50013 and NS50010. Production of cellulase and pectinase enzymes by A. niger during
solid-
state fermentation that lasted 10 days was also studied. The yields of reducing sugars of all the experiments were calculated using the Somogyi-Nelson method. Enzymatic hydrolysis was proven to be the most effective using the combination of both of the enzymes for a period of 96 hours at pH = 4.5 and temperature 45 °C. Yield of the reducing sugars under these conditions reached 27,4241 ± 0,0007 gl-1.
Advisors/Committee Members: Babák, Libor (advisor), Hrstka, Miroslav (referee).
Subjects/Keywords: potravinový odpad; pomerančové slupky; enzymatická hydrolýza; redukující cukry; celuláza; Aspergillus niger; solid-state fermentation; food waste; orange peel; enzymatic hydrolysis; reducing sugars; cellulase; Aspergillus niger; solid-state fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Vadovičová, N. (2019). Využití odpadních materiálů k přípravě hydrolyzátů pro fermentační fázi.: Waste materials utilization for preparing hydrolysates for the fermentation phase. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/58932
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Vadovičová, Natália. “Využití odpadních materiálů k přípravě hydrolyzátů pro fermentační fázi.: Waste materials utilization for preparing hydrolysates for the fermentation phase.” 2019. Thesis, Brno University of Technology. Accessed January 19, 2021.
http://hdl.handle.net/11012/58932.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Vadovičová, Natália. “Využití odpadních materiálů k přípravě hydrolyzátů pro fermentační fázi.: Waste materials utilization for preparing hydrolysates for the fermentation phase.” 2019. Web. 19 Jan 2021.
Vancouver:
Vadovičová N. Využití odpadních materiálů k přípravě hydrolyzátů pro fermentační fázi.: Waste materials utilization for preparing hydrolysates for the fermentation phase. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/11012/58932.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Vadovičová N. Využití odpadních materiálů k přípravě hydrolyzátů pro fermentační fázi.: Waste materials utilization for preparing hydrolysates for the fermentation phase. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/58932
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology
20.
Rapta, Marek.
Kultivace karotenogenních kvasinek na odpadních substrátech v podmínkách SSF (solid state fermentation): Cultivation of carotenogenic yeasts on waste substrates usinf solid state fermentation.
Degree: 2019, Brno University of Technology
URL: http://hdl.handle.net/11012/25495
► Semi-solid fermentation is an eco - friendly technique more and more used for production of significant metabolites or enriched biomass at low entrance cost and…
(more)
▼ Semi-
solid fermentation is an eco - friendly technique more and more used for production of significant metabolites or enriched biomass at low entrance cost and low comsumption of water. The problem of this technique might be the right choice of microorganism able to grow and produce at low water activity. This work is a pilot study of three red yeast strains – Rhodotorula glutinis, Cystofilobasidium capitatum and Sporobomomyces roseus cultivated by semi-
solid state fermentation (semi-SSF). Yeasts were cultivated in series of production media with gradual reduction of cultivation water content. Pasta and hydrolyzed pasta were used as source of sacharides, glucose served as the carbon source in control media. All studied strains we able to grow and produce observed lipidic metabolites also at low water contents. Production of carotenoids and sterols was higher in semi-
solid media. Cystofilobasidium capitatum strain was identified as the best producer of carotenoids and biomass. This strain was cultivated on hydrolyzed pasta media with 40% water content. Semi-SSF seems to be an adequate technique for selection of strains having over-productive properties. Observed metabolites production in yeast cells can be optimized by choosing the appropriate production media and water activity.
Advisors/Committee Members: Márová, Ivana (advisor), Petrik, Siniša (referee).
Subjects/Keywords: karotenoidy; Rhodotorula glitinis; Cystofilobasidium capitatum; Sporobomomycesroseus; solid-state fermentation; fyziologický stres; carotenoids; Rhodotorula glitinis; Cystofilobasidium capitatum; Sporobomomycesroseus; solid-state fermentation; physiological stress
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APA ·
Chicago ·
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CSE |
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APA (6th Edition):
Rapta, M. (2019). Kultivace karotenogenních kvasinek na odpadních substrátech v podmínkách SSF (solid state fermentation): Cultivation of carotenogenic yeasts on waste substrates usinf solid state fermentation. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/25495
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Rapta, Marek. “Kultivace karotenogenních kvasinek na odpadních substrátech v podmínkách SSF (solid state fermentation): Cultivation of carotenogenic yeasts on waste substrates usinf solid state fermentation.” 2019. Thesis, Brno University of Technology. Accessed January 19, 2021.
http://hdl.handle.net/11012/25495.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Rapta, Marek. “Kultivace karotenogenních kvasinek na odpadních substrátech v podmínkách SSF (solid state fermentation): Cultivation of carotenogenic yeasts on waste substrates usinf solid state fermentation.” 2019. Web. 19 Jan 2021.
Vancouver:
Rapta M. Kultivace karotenogenních kvasinek na odpadních substrátech v podmínkách SSF (solid state fermentation): Cultivation of carotenogenic yeasts on waste substrates usinf solid state fermentation. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/11012/25495.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Rapta M. Kultivace karotenogenních kvasinek na odpadních substrátech v podmínkách SSF (solid state fermentation): Cultivation of carotenogenic yeasts on waste substrates usinf solid state fermentation. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/25495
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
21.
Lima, Caio Augusto Funck de.
Avaliação econômica do processo de produção de celulase através de cultivo em meio sólido.
Degree: Mestrado, Engenharia Química, 2011, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-10062011-130452/
;
► Na produção do etanol 2G, as celulases representam um componente importante do custo. Com base em informações da literatura e resultados obtidos no Laboratório de…
(more)
▼ Na produção do etanol 2G, as celulases representam um componente importante do custo. Com base em informações da literatura e resultados obtidos no Laboratório de Engenharia Bioquímica da Escola Politécnica da USP, foi feito um estudo do custo de produção das celulases via fermentação em estado sólido (FES) em escala industrial. Foram consideradas as seguintes variáveis no processo de produção das celulases, denominadas cenários de produção: concentração das celulases no meio de cultura de 1 a 150 FPU/gms; produtividade em celulases em 0,11 e 0,45FPU/gms.h; atividade de celulase na hidrólise de bagaço de cana-de-açúcar entre 7 e 30 FPU/g de substrato seco; massa de bagaço de cana a ser hidrolisada entre 5 e 30% do bagaço gerado numa usina sucroalcooleira de referência (1.000.000 ton. de cana-de-açúcar /ano); custo dos substratos para a FES variando entre US6,00 a US12,00 por tonelada para o bagaço de cana-de-açúcar (80% da massa do meio) e US80,00 a US110,00 por tonelada para o farelo de trigo (20% da massa do meio); capacidade volumétrica dos reatores de FES variando entre 5 e 50 m3. Os impactos das variáveis consideradas foram: concentração de celulases no meio de cultura, acima de 45FPU/gms causam reduções menores que 5% no custo de produção; produtividades iguais em celulases (0,45FPU/gms.h), apresenta um processo 11% menos custoso para aquela com maior produção de enzimas, em relação ao tempo de fermentação; destinação de até 10% do bagaço gerado pela usina, reduz em 7% o custo de produção das celulases e a dosagem de celulase não causa redução significativa nos custos de produção, assim como o custo das matérias-primas; o aumento da capacidade dos reatores de FES causam redução de até 47% no custo de produção das celulases. A análise de regressão linear das variáveis apresentadas indica qual o impacto percentual dobre o custo de produção das celulases: quantidade de bagaço de cana-de-açúcar destinado à hidrólise (0,6%), atividade enzimática para a reação de hidrólise (0,3%), produção de celulase (73,4%), volume dos reatores de inóculo (0,5%), volume dos reatores de FES (2,7%), tempo de crescimento do inóculo (0,1%), tempo de fermentação (3,7%), custo do bagaço de cana-de-açúcar (0,9%), custo do farelo de trigo (0,6%) e outras variáveis não analisadas (17,2%). Conclui-se que, com os dados atuais sobre FES, a probabilidade de se obter um processo em escala industrial com custo de produção de celulase menor que US0,50/100.000FPU é de 15%. Desenvolvimento de culturas microbianas mais produtivas em celulases e tecnologias mais avançadas de reatores de grande escala, são necessárias à viabilidade da produção das celulases via FES para aplicação na hidrólise de celulose.
In ethanol 2G production, cellulases are an important component of the cost. Based on information from literature and results obtained in the Labotatório de Engenharia Bioquímica da Escola Politécnica da USP, a study was made of the production cost of cellulases via solid state fermentation (SSF) on industrial scale. The following variables…
Advisors/Committee Members: Kilikian, Beatriz Vahan.
Subjects/Keywords: Cellulase; Celulase; Fermentação em estado sólido; Industrial production; Produção industrial; Solid state fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lima, C. A. F. d. (2011). Avaliação econômica do processo de produção de celulase através de cultivo em meio sólido. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3137/tde-10062011-130452/ ;
Chicago Manual of Style (16th Edition):
Lima, Caio Augusto Funck de. “Avaliação econômica do processo de produção de celulase através de cultivo em meio sólido.” 2011. Masters Thesis, University of São Paulo. Accessed January 19, 2021.
http://www.teses.usp.br/teses/disponiveis/3/3137/tde-10062011-130452/ ;.
MLA Handbook (7th Edition):
Lima, Caio Augusto Funck de. “Avaliação econômica do processo de produção de celulase através de cultivo em meio sólido.” 2011. Web. 19 Jan 2021.
Vancouver:
Lima CAFd. Avaliação econômica do processo de produção de celulase através de cultivo em meio sólido. [Internet] [Masters thesis]. University of São Paulo; 2011. [cited 2021 Jan 19].
Available from: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-10062011-130452/ ;.
Council of Science Editors:
Lima CAFd. Avaliação econômica do processo de produção de celulase através de cultivo em meio sólido. [Masters Thesis]. University of São Paulo; 2011. Available from: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-10062011-130452/ ;

Universidade Estadual de Campinas
22.
Teixeira, Camilo Barroso, 1984-.
Production, characterization and application of Penicillium sp. lipasic solid fermented on fatty acids obtainment by cottonseed oil hydolysis assisted by ultrasound = Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom: Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom.
Degree: 2015, Universidade Estadual de Campinas
URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/256635
► Abstract: This study aimed to develop a biocatalyst with lipolytic activity through solid-state fermentation (SSF) using agricultural byproducts as substrate and a strain of Penicillium…
(more)
▼ Abstract: This study aimed to develop a biocatalyst with lipolytic activity through
solid-
state fermentation (SSF) using agricultural byproducts as substrate and a strain of Penicillium sp. to evaluate the application on cottonseed oil hydrolysis assisted by ultrasound (US). Divided into three chapters, the first intended for a literature review emphasizing the importance of developing a bioeconomy, the use of oils and fats for commercial products, agricultural biomass reuse, SSF new applications, lipase and the US in biocatalysis. The second chapter relates to lipase production by SSF using three by-products as substrates: wheat bran (WB), soybean meal (SM) and cottonseed meal (CSM). Simplex centroid mixture design (SCMD) evaluated the best formulation using lipase activity (U/g) and cost/unit (US$/10³U) as responses. The function desirability simultaneously optimized both responses, generating the best formulation with higher activity and lower cost using 100% CSM as
fermentation medium to optimize the physical parameters of the SSF: temperature, the water/
solid ratio and size particle. Central composite rotatable design (CCRD) evaluated the parameters lipase activity, protein and specific activity. The optimum conditions determined by desirability function were: 30°C, 70% water/
solid and particle size of 2.4 mm. This approach allowed a reduction of 20% water in the
fermentation medium. To determine the best
fermentation time, experiments carried out in optimum conditions showed the best time in 48 hours, a 50% reduction from the initial optimum time (96 hours). In the third chapter, the goal was to characterize the enzyme and to evaluate the application in cottonseed oil hydrolysis assisted by US and other in shaking bath. The characterization included the determination of optimum and stability conditions of temperature and pH for lipase activity; specificity (chain size) and stability in organic solvents. The optimum conditions were: 40 °C and pH 7 for activity and 30°C and pH 3 for stability. Higher affinity for long-chain fatty acids (p-NPP) and higher stability in apolar solvents (hexane) and lower in polar (methanol and ethanol). In the hydrolysis of cottonseed oil, two experiments were conducted: in shaking bath and another using US probe (19 kHz) in direct contact with the reaction medium. Both studies were designed by CCRD and used as independent variables: concentration of lipasic
solid fermented (LSF) and buffer/oil ratio for the system in bath (40 °C, 120 rpm) and concentration of LSF, buffer/oil ratio and power density (W/mL) to US system. The results showed that increasing LSF and buffer/oil ratio resulted on improvement of cottonseed oil hydrolysis. Nevertheless, the US power generates a decrease, possibly inhibiting the reaction. The optimum conditions were the same for both systems: 20% FSL, buffer/oil ratio = 4 The optimum reaction time defined by the desirability function was 30 minutes and 54% of hydrolysis yield to US and 1 hour and 28.5% for shaking bath
Advisors/Committee Members: UNIVERSIDADE ESTADUAL DE CAMPINAS (CRUESP), Macedo, Gabriela Alves, 1971- (advisor), Universidade Estadual de Campinas. Faculdade de Engenharia de Alimentos (institution), Programa de Pós-Graduação em Ciência de Alimentos (nameofprogram), Kamimura, Eliana Setsuko (committee member), Contesini, Fabiano Jares (committee member), Fleuri, Luciana Francisco (committee member), Forte, Marcus Bruno Soares (committee member).
Subjects/Keywords: Lipase; Penicillium; Fermentação em estado sólido; Hidrólise; Ultrassom; Lipase; Penicillium; Solid-state fermentation; Hydrolysis; Ultrasound
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Teixeira, Camilo Barroso, 1. (2015). Production, characterization and application of Penicillium sp. lipasic solid fermented on fatty acids obtainment by cottonseed oil hydolysis assisted by ultrasound = Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom: Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/256635
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Teixeira, Camilo Barroso, 1984-. “Production, characterization and application of Penicillium sp. lipasic solid fermented on fatty acids obtainment by cottonseed oil hydolysis assisted by ultrasound = Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom: Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom.” 2015. Thesis, Universidade Estadual de Campinas. Accessed January 19, 2021.
http://repositorio.unicamp.br/jspui/handle/REPOSIP/256635.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Teixeira, Camilo Barroso, 1984-. “Production, characterization and application of Penicillium sp. lipasic solid fermented on fatty acids obtainment by cottonseed oil hydolysis assisted by ultrasound = Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom: Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom.” 2015. Web. 19 Jan 2021.
Vancouver:
Teixeira, Camilo Barroso 1. Production, characterization and application of Penicillium sp. lipasic solid fermented on fatty acids obtainment by cottonseed oil hydolysis assisted by ultrasound = Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom: Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom. [Internet] [Thesis]. Universidade Estadual de Campinas; 2015. [cited 2021 Jan 19].
Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/256635.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Teixeira, Camilo Barroso 1. Production, characterization and application of Penicillium sp. lipasic solid fermented on fatty acids obtainment by cottonseed oil hydolysis assisted by ultrasound = Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom: Produção, caracterização e aplicação de sólido fermentado lipásico de Penicillium sp. na obtenção de ácidos graxos pela hidrólise de óleo de algodão assistido por ultrassom. [Thesis]. Universidade Estadual de Campinas; 2015. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/256635
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan
23.
Kumitch, Hayley Marie 1991-.
The Effect of Solid-State Fermentation on Air-Classified Pea Protein-Enriched Flour to Improve the Digestibility and Functional Properties.
Degree: 2019, University of Saskatchewan
URL: http://hdl.handle.net/10388/12130
► The overarching goal of this research was to investigate the effect of solid-state fermentation (SSF) on pea protein-enriched flour (PPEF) to improve the digestibility and…
(more)
▼ The overarching goal of this research was to investigate the effect of
solid-
state fermentation (SSF) on pea protein-enriched flour (PPEF) to improve the digestibility and functional properties. The pea protein is classified as an enriched flour since it has a higher protein content than pea flour (20-30%) however, is less than a concentrate (70%) or isolate (90%) (Singhal et al., 2016; Lam et al., 2018). PPEF was inoculated with Aspergillus oryzae NRRL 5590 or Aspergillus niger NRRL 334 and evaluated at two temperatures (30C and 40C) over 48 h of
fermentation to obtain limited protein hydrolysis (0-10%). Limited protein hydrolysis was acquired to enhance functionality properties in addition to the protein digestibility. The surface charge of fermented PPEF increased in negativity over
fermentation time for both fungi: from
-16.2 to -18.4 mV for A. oryzae and from -13.5 to -18.6 mV for A. niger. Whereas, surface hydrophobicity decreased from 14.1 to 8.4 a.u. for A. oryzae and 21.6 and 13.9 a.u. for A. niger. Fermented PPEF was analyzed for nitrogen solubility, emulsifying and foaming properties at pH values of 3.0, 5.0 and 7.0. In all samples, functionality (based on solubility, emulsification and foaming) was found to be greatest at pH 3.0 and 7.0 and lowest at pH 5.0 (near the isoelectric point of PPEF). Specifically, fermented PPEF was found to significantly decrease in solubility over
fermentation time for both fungi at all pH values tested (p<0.001). Due to the low solubility in all fermented samples, the functional properties (foaming and emulsifying properties) that are dependent upon high solubility were negatively impacted. However, water and oil holding capacities of fermented PPEF increased over the 6-h of
fermentation. Water holding capacity increased from 1.5 g/g to 2.0 g/g with A. oryzae
fermentation, and oil holding capacity increased from 1.2 g/g to 2.3 g/g with A. niger
fermentation.
Fermentation was found to improve protein quality of PPEF. Proteolysis inhibition, i.e., activities of trypsin and chymotrypsin inhibitors, was found to reduce over
fermentation (~11-30% and 22-23% in A. oryzae and A.niger, respectively). Whereas, total phenolic content was shown to increase during
fermentation (from ~38-44%). In vitro protein digestibility showed an increase over the
fermentation time, from 6-8%, and could be attributed to reduced activity levels of enzyme inhibitors. In vitro protein digestibility corrected amino acid score showed a reduction of ~5-15% at 6 h, with limiting amino acids remaining methionine and cysteine. Together, these findings suggest that SSF of PPEF could potentially improve digestibility through the reduction of bioactive properties and overall improvement of protein quality. Since SSF with A. niger and A. oryzae led to poor protein quality, it is not recommended as a means for altering the nutritional value of pea protein enriched flour. Overall, SSF is an efficient method for improving the oil and water holding capacities and protein digestibility in PPEF.
Advisors/Committee Members: Tanaka, Takuji, Korber, Darren R, Nickerson, Michael T, Ai, Yongfeng.
Subjects/Keywords: Solid-state fermentation; pea protein enriched flour; functionality; degrees of hydrolysis; bioactive compounds; protein quality
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kumitch, H. M. 1. (2019). The Effect of Solid-State Fermentation on Air-Classified Pea Protein-Enriched Flour to Improve the Digestibility and Functional Properties. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12130
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kumitch, Hayley Marie 1991-. “The Effect of Solid-State Fermentation on Air-Classified Pea Protein-Enriched Flour to Improve the Digestibility and Functional Properties.” 2019. Thesis, University of Saskatchewan. Accessed January 19, 2021.
http://hdl.handle.net/10388/12130.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kumitch, Hayley Marie 1991-. “The Effect of Solid-State Fermentation on Air-Classified Pea Protein-Enriched Flour to Improve the Digestibility and Functional Properties.” 2019. Web. 19 Jan 2021.
Vancouver:
Kumitch HM1. The Effect of Solid-State Fermentation on Air-Classified Pea Protein-Enriched Flour to Improve the Digestibility and Functional Properties. [Internet] [Thesis]. University of Saskatchewan; 2019. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10388/12130.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kumitch HM1. The Effect of Solid-State Fermentation on Air-Classified Pea Protein-Enriched Flour to Improve the Digestibility and Functional Properties. [Thesis]. University of Saskatchewan; 2019. Available from: http://hdl.handle.net/10388/12130
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester
24.
Chang, Chen-Wei.
Bioconversion of sugarcane bagasse and soybean hulls for the production of a generic microbial feedstock.
Degree: PhD, 2015, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/bioconversion-of-sugarcane-bagasse-and-soybean-hulls-for-the-production-of-a-generic-microbial-feedstock(0144bdd8-5444-468d-9f0f-50613a79be67).html
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713552
► Lignocellulose, mostly from agricultural and forestry resources, is a potential renewable material for sustainable development of biorefineries. From previous studies, reducing sugar production through biological…
(more)
▼ Lignocellulose, mostly from agricultural and forestry resources, is a potential renewable material for sustainable development of biorefineries. From previous studies, reducing sugar production through biological pretreatment involves two steps: solid-state fermentation (SSF) for delignification, followed by enzymatic hydrolysis by adding celluloytic enzymes (cellulase and xylanase etc.). In the process described in this thesis, the necessary enzymes are produced in-situ and the hydrolysis proceeds directly after the solid-state fermentation. Enzyme hydrolysis releases free amino nitrogen (FAN), reducing sugar and many other potential nutrients from the fermented materials. This method additionally avoids the need for removal of inhibitors compared with conventional chemical pretreatment processes. A range of solid-state fermentations were carried out to investigate the effect of washing procedure, particle size and nitrogen supplement on Trichoderma longibrachiatum growth. From these preliminary studies it was concluded that nitrogen supplementation is a crucial factor to improve significantly the fungi growth and production of feedstock using sugarcane bagasse as raw material. In order to evaluate the influence of environmental humidity on petri dish experiments, moist environments were investigated, with over 75% relative humidity to limit water evaporation from solid-state fermentation. The results showed that moist environments gave approximately 1.85 times the reducing sugar yield than dry environments. The process of simultaneous enzymatic hydrolysis of substrates and fungal autolysis were also studied. The degree of hydrolysis was affected by initial fermented solid to liquid ratio, temperature and pH range. The optimal conditions for subsequent hydrolysis of fermented solids were determined. The optimal solid to liquid ratio, 4% (w/w), temperature 50°C and pH 7 were established. The highest final reducing sugar, 8.9 g/L and FAN, 560 mg/L, were measured after 48 h. The fungal autolysis was identified by image analysis as well as by the consumption of nutrient and the release of free amino nitrogen and phosphorous. Solid state fermentation in a multi-layer tray bioreactor and a packed-bed bioreactor were also developed, with moist air supply for oxygen provision and heat removal. Fermented solids in the multi-layer bioreactor led to the highest subsequent hydrolysis yield on reducing sugar, FAN and Inorganic Phosphorous (IP), 222.85 mg/g, 11.56 mg/g and 19.9 mg/g, respectively. These series of fermentation experiments illustrate the feasibility for the application of consolidated bioprocessing, through simultaneous pretreatment and enzyme production as a more economic and environment-friendly process compared with those reported for chemical pretreatment followed by commercial enzyme process. A growth kinetic model regarding both growth and respiration is also proposed. Ethanol production was studied using the generic feedstock produced from sugarcane bagasse and soybean hulls. Total ethanol yield reached 0.31…
Subjects/Keywords: 660.6; enzyme production; pretreatment; fungal autolysis; lignocellulose; Solid-state fermentation; microbial feedstock
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chang, C. (2015). Bioconversion of sugarcane bagasse and soybean hulls for the production of a generic microbial feedstock. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/bioconversion-of-sugarcane-bagasse-and-soybean-hulls-for-the-production-of-a-generic-microbial-feedstock(0144bdd8-5444-468d-9f0f-50613a79be67).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713552
Chicago Manual of Style (16th Edition):
Chang, Chen-Wei. “Bioconversion of sugarcane bagasse and soybean hulls for the production of a generic microbial feedstock.” 2015. Doctoral Dissertation, University of Manchester. Accessed January 19, 2021.
https://www.research.manchester.ac.uk/portal/en/theses/bioconversion-of-sugarcane-bagasse-and-soybean-hulls-for-the-production-of-a-generic-microbial-feedstock(0144bdd8-5444-468d-9f0f-50613a79be67).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713552.
MLA Handbook (7th Edition):
Chang, Chen-Wei. “Bioconversion of sugarcane bagasse and soybean hulls for the production of a generic microbial feedstock.” 2015. Web. 19 Jan 2021.
Vancouver:
Chang C. Bioconversion of sugarcane bagasse and soybean hulls for the production of a generic microbial feedstock. [Internet] [Doctoral dissertation]. University of Manchester; 2015. [cited 2021 Jan 19].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/bioconversion-of-sugarcane-bagasse-and-soybean-hulls-for-the-production-of-a-generic-microbial-feedstock(0144bdd8-5444-468d-9f0f-50613a79be67).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713552.
Council of Science Editors:
Chang C. Bioconversion of sugarcane bagasse and soybean hulls for the production of a generic microbial feedstock. [Doctoral Dissertation]. University of Manchester; 2015. Available from: https://www.research.manchester.ac.uk/portal/en/theses/bioconversion-of-sugarcane-bagasse-and-soybean-hulls-for-the-production-of-a-generic-microbial-feedstock(0144bdd8-5444-468d-9f0f-50613a79be67).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713552

Virginia Tech
25.
Umstead, Russell Blake.
Development of Fungal Bioreactors for Water Related Treatment and Disinfection Applications.
Degree: MS, Biological Systems Engineering, 2016, Virginia Tech
URL: http://hdl.handle.net/10919/72291
► Wastewater, recycled irrigation water, and agricultural runoff can contain high levels of pathogenic bacteria, which pose a threat to human and ecosystem health. The use…
(more)
▼ Wastewater, recycled irrigation water, and agricultural runoff can contain high levels of pathogenic bacteria, which pose a threat to human and ecosystem health. The use of a bioreactor containing mycelial mats of filamentous fungi is a novel treatment technology that incorporates physical, biological, and biochemical processes to remove bacterial pathogens from influent water. Although a relatively new concept, fungal bioreactors have demonstrated the ability to dramatically reduce fecal coliform bacteria in water, but no studies have attempted to explicitly identify the bacterial pathogen removal mechanisms exhibited by the fungi.
This study evaluated several different species of fungi for use in fungal bioreactor systems and aimed to identify the modes of action responsible for the removal of bacterial pathogens. The species evaluated were Daedaleopsis confragosa, Pleurotus eryngii, and Piptoporus betulinus. Experimental results showed that all species of fungi assessed were capable of removing E. coli in a synthetic water solution. Significant concentrations of hydrogen peroxide, an antiseptic, were produced by all species of fungi evaluated. The fungal bioreactors containing P. eryngii produced the highest concentrations of hydrogen peroxide, generating a maximum concentration of 30.5 mg/l or 0.896 mM. This maximum value exceeds reported minimum concentrations required to demonstrate bacteriostatic and bactericidal effects when continually applied, providing evidence that a major bacterial removal mode of action is the production of antimicrobial compounds. In addition to its promising application to improve water quality, fungal bioreactors are a low cost and passive treatment technology. The development a hyper-functional system could be a have a substantial impact on the use of recycled irrigation water and on the water/wastewater treatment industry, for both municipal and agricultural wastewater.
Advisors/Committee Members: Easton, Zachary (committeechair), Badgley, Brian D. (committee member), Sample, David J. (committee member).
Subjects/Keywords: fungi; fungal bioreactor; antimicrobial compounds; water treatment; disinfection; filtration; solid-state fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Umstead, R. B. (2016). Development of Fungal Bioreactors for Water Related Treatment and Disinfection Applications. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/72291
Chicago Manual of Style (16th Edition):
Umstead, Russell Blake. “Development of Fungal Bioreactors for Water Related Treatment and Disinfection Applications.” 2016. Masters Thesis, Virginia Tech. Accessed January 19, 2021.
http://hdl.handle.net/10919/72291.
MLA Handbook (7th Edition):
Umstead, Russell Blake. “Development of Fungal Bioreactors for Water Related Treatment and Disinfection Applications.” 2016. Web. 19 Jan 2021.
Vancouver:
Umstead RB. Development of Fungal Bioreactors for Water Related Treatment and Disinfection Applications. [Internet] [Masters thesis]. Virginia Tech; 2016. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10919/72291.
Council of Science Editors:
Umstead RB. Development of Fungal Bioreactors for Water Related Treatment and Disinfection Applications. [Masters Thesis]. Virginia Tech; 2016. Available from: http://hdl.handle.net/10919/72291

Cape Peninsula University of Technology
26.
Amodu, Olusola S.
Biodegradation of polycyclic aromatic hydrocarbon contaminants in a mixed culture bioreactor
.
Degree: 2015, Cape Peninsula University of Technology
URL: http://etd.cput.ac.za/handle/20.500.11838/934
► Polycyclic aromatic hydrocarbons (PAHs) are one of the most common and recalcitrant environmental contaminants – known for their potential toxicity, mutagenicity, and carcinogenicity to humans.…
(more)
▼ Polycyclic aromatic hydrocarbons (PAHs) are one of the most common and recalcitrant environmental contaminants – known for their potential toxicity, mutagenicity, and carcinogenicity to humans. Biosurfactant application can enhance the biodegradation of PAHs. The main object of this work was to explore the novelty of biosurfactant produced by the isolated strains of Bacillus sp and Pseudomonas aeruginosa grown exclusively on Beta vulgaris, and the modification of the zeolites nanoparticles by the biosurfactant, for enhanced biodegradation of PAHs in soil. Novel biosurfactant-producing strains were isolated from hydrocarbon-contaminated environments, while several agrowaste were screened as primary carbon sources for the expression of biosurfactants, which were quantified using various standardized methods......
Subjects/Keywords: Agrowaste;
Bacillus licheniformis;
Bioconversion;
Biodegradation;
Biosurfactant;
Kinetics;
Modelling;
Magnetic nanoparticles;
Polycyclic Aromatic Hydrocarbon;
Solid State Fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Amodu, O. S. (2015). Biodegradation of polycyclic aromatic hydrocarbon contaminants in a mixed culture bioreactor
. (Thesis). Cape Peninsula University of Technology. Retrieved from http://etd.cput.ac.za/handle/20.500.11838/934
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Amodu, Olusola S. “Biodegradation of polycyclic aromatic hydrocarbon contaminants in a mixed culture bioreactor
.” 2015. Thesis, Cape Peninsula University of Technology. Accessed January 19, 2021.
http://etd.cput.ac.za/handle/20.500.11838/934.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Amodu, Olusola S. “Biodegradation of polycyclic aromatic hydrocarbon contaminants in a mixed culture bioreactor
.” 2015. Web. 19 Jan 2021.
Vancouver:
Amodu OS. Biodegradation of polycyclic aromatic hydrocarbon contaminants in a mixed culture bioreactor
. [Internet] [Thesis]. Cape Peninsula University of Technology; 2015. [cited 2021 Jan 19].
Available from: http://etd.cput.ac.za/handle/20.500.11838/934.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Amodu OS. Biodegradation of polycyclic aromatic hydrocarbon contaminants in a mixed culture bioreactor
. [Thesis]. Cape Peninsula University of Technology; 2015. Available from: http://etd.cput.ac.za/handle/20.500.11838/934
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Sardar Patel University
27.
Pandya, Jagruti Jitendrakumar.
Production of xylanase from aspergillus tubingensis jp 1
under solid state fermentation its purification characterization
and application in saccharification to bioethanol;.
Degree: Microbiology, 2011, Sardar Patel University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/40866
None newline
Reference given in the 177p.
Advisors/Committee Members: Gupte, Akshaya.
Subjects/Keywords: aspergillus tubingensis; bioethanol; purification; saccharification; solid state fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pandya, J. J. (2011). Production of xylanase from aspergillus tubingensis jp 1
under solid state fermentation its purification characterization
and application in saccharification to bioethanol;. (Thesis). Sardar Patel University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/40866
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Pandya, Jagruti Jitendrakumar. “Production of xylanase from aspergillus tubingensis jp 1
under solid state fermentation its purification characterization
and application in saccharification to bioethanol;.” 2011. Thesis, Sardar Patel University. Accessed January 19, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/40866.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Pandya, Jagruti Jitendrakumar. “Production of xylanase from aspergillus tubingensis jp 1
under solid state fermentation its purification characterization
and application in saccharification to bioethanol;.” 2011. Web. 19 Jan 2021.
Vancouver:
Pandya JJ. Production of xylanase from aspergillus tubingensis jp 1
under solid state fermentation its purification characterization
and application in saccharification to bioethanol;. [Internet] [Thesis]. Sardar Patel University; 2011. [cited 2021 Jan 19].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/40866.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Pandya JJ. Production of xylanase from aspergillus tubingensis jp 1
under solid state fermentation its purification characterization
and application in saccharification to bioethanol;. [Thesis]. Sardar Patel University; 2011. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/40866
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Federal de Sergipe
28.
Patricia Nunes Calasans.
PRODUÇÃO DE AROMA DE COCO POR TRICHODERMA HARZIANUM UTILIZANDO BAGAÇO DE CANA.
Degree: 2012, Universidade Federal de Sergipe
URL: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=769
► A biotecnologia se insere na busca de novos produtos e processos, tornando-se uma ferramenta importante no desenvolvimento de processos de produção de aromas naturais biotecnológicos.…
(more)
▼ A biotecnologia se insere na busca de novos produtos e processos, tornando-se uma ferramenta importante no desenvolvimento de processos de produção de aromas naturais biotecnológicos. Compostos de aroma obtidos por estes processos representam uma alternativa de produção bastante promissora e viável para as indústrias, principalmente devido ao aumento da preferência dos consumidores por aditivos alimentícios e produtos naturais. Muitos microrganismos, isolados dos mais variados ambientes, possuem potencial para sintetizar compostos de aroma quando cultivados em meios de cultura adequados. Os processos fermentativos possibilitam o aproveitamento de resíduos agroindustriais, cuja disposição no meio ambiente gera sérios problemas de poluição. A composição dos resíduos, principalmente a fonte de carbono, permite o crescimento dos microrganismos e produção de compostos de maior valor agregado. O presente trabalho tem como objetivo produzir e quantificar a lactona 6-pentil-á-pirona, responsável pelo aroma característico de coco, utilizando resíduo agroindustrial como suporte e fungo filamentoso Trichoderma harzianum. Inicialmente, três resíduos agroindustriais (bagaço de cana, pó da casca de coco e bagaço de mandioca) e cinco microrganismos foram testados quanto à produção do aroma. A técnica de cromatografia gasosa acoplada à extração em headspace permitiu as análises qualitativas e quantitativas da lactona. Através da área do cromatograma, a linhagem 4040 do fungo Trichoderma e o suporte bagaço de cana foram selecionados como meio de cultivo. O resíduo bagaço de cana foi caracterizado sob o aspecto físico-químico. Os testes realizados para avaliar o nível de toxidez da lactona sobre o microrganismo não apresentaram inibição total no crescimento celular, apenas pouca presença de esporos. O planejamento fatorial completo em dois níveis foi empregado para avaliar a influência da concentração de nutrientes (C/N) e da temperatura sobre a produção do 6-pentil-á-pirona. A maior produção do composto de aroma resultou em 3,78 mg/g MS no 7 dia de cultivo. Os termos lineares e quadráticos relacionados à temperatura foram significativos no modelo proposto a um nível de confiança de 95% para a máxima concentração do aroma, sendo direcionadas para valores de 25 a 28C. O efeito da razão C/N e de interação entre as duas variáveis não foram estatisticamente significativos.
Biotechnology is inserted within the search for new products and processes, thus becoming an important tool in the development of biotechnological natural aroma production processes. Flavors compounds obtained from these processes represent a very promising and viable way of production for industries mainly due to the increase of consumer preference for natural food additives and products. Many microorganisms isolated from various environments have potential to synthesize flavors compounds when cultivated in an appropriate culture medium. Fermentation processes allow the use of agro-industrial wastes in which disposal on the environment may cause serious pollution…
Advisors/Committee Members: Roberto Rodrigues de Souza.
Subjects/Keywords: Lactona; resíduo agroindustrial; fermentação em estado sólido; ENGENHARIA QUIMICA; Lactone; agro-industrial waste; solid state fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Calasans, P. N. (2012). PRODUÇÃO DE AROMA DE COCO POR TRICHODERMA HARZIANUM UTILIZANDO BAGAÇO DE CANA. (Thesis). Universidade Federal de Sergipe. Retrieved from http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=769
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Calasans, Patricia Nunes. “PRODUÇÃO DE AROMA DE COCO POR TRICHODERMA HARZIANUM UTILIZANDO BAGAÇO DE CANA.” 2012. Thesis, Universidade Federal de Sergipe. Accessed January 19, 2021.
http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=769.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Calasans, Patricia Nunes. “PRODUÇÃO DE AROMA DE COCO POR TRICHODERMA HARZIANUM UTILIZANDO BAGAÇO DE CANA.” 2012. Web. 19 Jan 2021.
Vancouver:
Calasans PN. PRODUÇÃO DE AROMA DE COCO POR TRICHODERMA HARZIANUM UTILIZANDO BAGAÇO DE CANA. [Internet] [Thesis]. Universidade Federal de Sergipe; 2012. [cited 2021 Jan 19].
Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=769.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Calasans PN. PRODUÇÃO DE AROMA DE COCO POR TRICHODERMA HARZIANUM UTILIZANDO BAGAÇO DE CANA. [Thesis]. Universidade Federal de Sergipe; 2012. Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=769
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
29.
Renu, S.
L-Glutaminase production by Marine Bacteria.
Degree: Applied Chemistry, 1991, Cochin University of Science and Technology
URL: http://dyuthi.cusat.ac.in/purl/3106
► L-glutaminases (L—glutamine amidohydrolase EC.3.5.l.2) is proposed as a prospective candidate for enzyme therapy cnf cancer and also as zui important additive during enzymatic digestion of…
(more)
▼ L-glutaminases (L—glutamine amidohydrolase EC.3.5.l.2) is proposed as a prospective candidate for enzyme therapy cnf cancer and also as zui important additive during enzymatic digestion of shoyu koji since it could enhance glutamate content of soysauce. Commercial production of glutaminase could make possible its wide application in these areas, which would demand availability of potential sources and suitable fermentation techniques. The ‘present investigation highlighted marine environment as a potential source of efficient glutaminase producing bacteria mainly species of pseudomonas, aeromonas ,vibrio,alcaligenes, acinetobacter bacillus and planococci.Among them pseudomonas fluorescens ACMR 267 and v.cholerae ACMR 347 were chosen as the ideal strains for glutaminase production.Extracellular glutaminase fraction from all strains were in higher titres than intracellular enzymes during growth in mineral media, nutrient broth and nutrient broth added with glutamine.Glutaminase from all strains were purified employing (NH4)2SO4 fractionation followed tnr dialysis and ion exchange chromatography. The purified glutaminase from all strains were observed to be active and stable over a wide range of gfii and temperature.Optimization studies cflf environmental variables that normally influence time yiehi of glutaminase indicated that the optimal requirements of these bacteria for maximal glutaminase production remained stable irrespective of the medium, they are provided with for enzyme production. However, solid state fermentation technique was observed to
be the most suitable process for the production of Glutaminase.
Cochin University of Science and Technology
Subjects/Keywords: L-Glutaminase; Solid State Fermentation; Bacteria; Extracellular glutaminases; Chromatography
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Renu, S. (1991). L-Glutaminase production by Marine Bacteria. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/3106
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Renu, S. “L-Glutaminase production by Marine Bacteria.” 1991. Thesis, Cochin University of Science and Technology. Accessed January 19, 2021.
http://dyuthi.cusat.ac.in/purl/3106.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Renu, S. “L-Glutaminase production by Marine Bacteria.” 1991. Web. 19 Jan 2021.
Vancouver:
Renu S. L-Glutaminase production by Marine Bacteria. [Internet] [Thesis]. Cochin University of Science and Technology; 1991. [cited 2021 Jan 19].
Available from: http://dyuthi.cusat.ac.in/purl/3106.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Renu S. L-Glutaminase production by Marine Bacteria. [Thesis]. Cochin University of Science and Technology; 1991. Available from: http://dyuthi.cusat.ac.in/purl/3106
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
30.
Eduardo, Mariana de Paula.
Desempenho e homogeneidade de cultivos em meio sólido de Monascus sp. em biorreator do tipo tambor com agitação interna: efeitos do padrão de agitação.
Degree: PhD, Engenharia Química, 2010, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-30112011-170623/
;
► Este trabalho teve por objetivo verificar a influência da agitação no cultivo em meio sólido, FES, quanto a crescimento microbiano, homogeneização do meio e remoção…
(more)
▼ Este trabalho teve por objetivo verificar a influência da agitação no cultivo em meio sólido, FES, quanto a crescimento microbiano, homogeneização do meio e remoção de calor. As correlações obtidas contribuem na definição de critérios para ampliação de escala da FES. O modelo adotado foi o cultivo do fungo Monascus sp. em arroz. Os experimentos foram conduzidos em reator tubular horizontal de 40 l, com agitação interna intermitente, camisa de resfriamento e vazão de ar de 2 l.min-1.Kgms-1. Os cultivos foram realizados com base num planejamento fatorial rotacional: 12 a 60 rotações das pás em 24 horas; 2 a 12 horas de intervalo entre os eventos de agitação. A intensidade do crescimento celular foi considerada com base no consumo de O2, produção de CO2 , concentrações de proteína e ergosterol. O consumo de O2 apresenta correlação de 81% com os padrões de agitação sendo que tanto o número de rotações quanto o intervalo entre os eventos de agitação influenciam negativamente o crescimento celular assim estimado. Por outro lado, a máxima velocidade de consumo de oxigênio, OUR, obtida por volta de 24 horas, em cultivos com menores intervalos entre os eventos de agitação, indica efeito positivo da agitação sobre a velocidade do crescimento de fungos em superfície, enquanto não ocorre compactação do meio de cultivo. Conclui-se, portanto, que a natureza do substrato empregado, arroz, cuja reologia é sensivelmente alterada pela agitação, contribuiu de modo deletério à respiração celular e que a adoção de reatores com agitação na FES, requer substrato com baixo teor de amido e elevado teor de fibras. As medidas de ergosterol apresentaram correlação de 85% com os padrões de agitação mostrando que o intervalo entre os eventos de agitação é o fator com maior impacto nesta resposta e os ensaios com maiores intervalos entre os eventos de agitação e maior número de voltas apresentaram concentrações aproximadamente dez vezes maiores de ergosterol em relação aos outros ensaios. Os coeficientes de variação de umidade em cinco pontos do reator representam a homogeneidade, pois relacionam-se com os padrões de agitação com correlação de 95%.
This investigation aimed to verify the influence of mixing microbial growth, medium homogenization and heat removal within a solid state fermentation (SSF) bioreactor. The correlations obtained will help to establish the scale-up criteria. The model system involved the cultivation of the fungi Monascus sp. on rice. The assays were performed in a 40 l bioreactor under internal intermittent mixing with a cooling jacket and an air flux of 2 l.min-1 kgdm-1. The cultivations followed a rotational factorial plan: 12 to 60 paddle revolutions in 24 hours; with an interval of 2 to 12 hours between mixing events. Cellular growth rate was estimated by O2 consumption, CO2 production, and protein and ergosterol concentrations. The O2 consumption showed an 81% …
Advisors/Committee Members: Kilikian, Beatriz Vahan.
Subjects/Keywords: Agitação; Agitation; Bioreactors; Biorreator; Fermentação em meio sólido; Homogeneidade; Homogeneity; Monascus; Monascus; Respiração; Respiration; Solid state fermentation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Eduardo, M. d. P. (2010). Desempenho e homogeneidade de cultivos em meio sólido de Monascus sp. em biorreator do tipo tambor com agitação interna: efeitos do padrão de agitação. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3137/tde-30112011-170623/ ;
Chicago Manual of Style (16th Edition):
Eduardo, Mariana de Paula. “Desempenho e homogeneidade de cultivos em meio sólido de Monascus sp. em biorreator do tipo tambor com agitação interna: efeitos do padrão de agitação.” 2010. Doctoral Dissertation, University of São Paulo. Accessed January 19, 2021.
http://www.teses.usp.br/teses/disponiveis/3/3137/tde-30112011-170623/ ;.
MLA Handbook (7th Edition):
Eduardo, Mariana de Paula. “Desempenho e homogeneidade de cultivos em meio sólido de Monascus sp. em biorreator do tipo tambor com agitação interna: efeitos do padrão de agitação.” 2010. Web. 19 Jan 2021.
Vancouver:
Eduardo MdP. Desempenho e homogeneidade de cultivos em meio sólido de Monascus sp. em biorreator do tipo tambor com agitação interna: efeitos do padrão de agitação. [Internet] [Doctoral dissertation]. University of São Paulo; 2010. [cited 2021 Jan 19].
Available from: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-30112011-170623/ ;.
Council of Science Editors:
Eduardo MdP. Desempenho e homogeneidade de cultivos em meio sólido de Monascus sp. em biorreator do tipo tambor com agitação interna: efeitos do padrão de agitação. [Doctoral Dissertation]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-30112011-170623/ ;
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