subject:(supercritical fluid extraction)

University of Guelph

1. Rosenthal, Angelique. The Safe Design of a Continuous Supercritical Fluid Extraction System for the Treatment of Drill Cuttings .

Degree: 2012, University of Guelph

URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/3373

► The objective of this research was to design a pilot scale continuous supercritical fluid extraction (SFE) system for the treatment of drill cuttings.The design includes:… (more)

Subjects/Keywords: supercritical fluid; supercritical fluid extraction; drill cuttings

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APA (6^th Edition):

Rosenthal, A. (2012). The Safe Design of a Continuous Supercritical Fluid Extraction System for the Treatment of Drill Cuttings . (Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/3373

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rosenthal, Angelique. “The Safe Design of a Continuous Supercritical Fluid Extraction System for the Treatment of Drill Cuttings .” 2012. Thesis, University of Guelph. Accessed October 17, 2019. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/3373.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rosenthal, Angelique. “The Safe Design of a Continuous Supercritical Fluid Extraction System for the Treatment of Drill Cuttings .” 2012. Web. 17 Oct 2019.

Vancouver:

Rosenthal A. The Safe Design of a Continuous Supercritical Fluid Extraction System for the Treatment of Drill Cuttings . [Internet] [Thesis]. University of Guelph; 2012. [cited 2019 Oct 17]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/3373.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rosenthal A. The Safe Design of a Continuous Supercritical Fluid Extraction System for the Treatment of Drill Cuttings . [Thesis]. University of Guelph; 2012. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/3373

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

2. Spence, Amy J. An evaluation into the optimization and application of supercritical fluid extraction and the processing impact on the components in filtrated buttermilk powder.

Degree: PhD, Food Science and Technology, 2008, Oregon State University

URL: http://hdl.handle.net/1957/9043

► The milk fat globule membrane, a major component in buttermilk, contains many complex lipids known to be involved in a variety of biological processes. Phospholipids,… (more)

▼ The milk fat globule membrane, a major component in buttermilk, contains many complex lipids known to be involved in a variety of biological processes. Phospholipids, including sphingolipids, exhibit antioxidative, anticarcinogenic, and antiatherogenic properties and have essential roles in numerous cell functions. Filtration coupled with supercritical fluid extraction (SFE) may provide a method of concentrating these nutritionally valuable lipids into a novel ingredient. The objective of this dissertation was to evaluate the SFE process as a method to enrich polar lipids in buttermilk powder. The first part of this dissertation involved the optimization of the SFE treatment for buttermilk powder. Pressure and temperature treatment factors were assessed as were the role of matrix powder additions. The parameters at 350 bar and 50°C displayed enhanced extraction efficiency of triacylglycerol removal with minimal disruption to other buttermilk components. The addition of diatomaceous earth, Teflon® beads and physical vibration were shown to help reduce total lipid by 86%, 78% and 70%, respectively. The second part of the study was to apply the optimized SFE treatment to two different sources of buttermilk powder, regular and whey cream, also passed through two different filtration modes prior to drying. The buttermilk powders were compared in terms of lipid extraction efficiency and by assessing compositional differences of initial and final products, as well as the lipids extracted from the powder. After three extractions, SFE processing reduced the total fat, namely non-polar lipids, by 38 - 55% and phospholipids were concentrated by a 5-fold factor in the powders. Specific molecular fatty acid combinations on the sphingosine backbone of sphingomyelin from the treated buttermilk powder were characterized to show unique composition. Finally, the thermal stability of ultrafiltrated whey cream buttermilk powder prior to and following SFE treatment was observed. Salt as well as pH levels were adjusted in the reconstituted powders and protein agglomeration upon heating was assessed. Results showed that in comparison to whey protein isolate, the SFE process enhances thermal stability by reducing protein aggregation, indicating the processed whey cream buttermilk powder to be a unique product with an interesting thermal profile and composition. Filtration followed by supercritical fluid extraction processing is an effective tool for enriching bioactive lipids in both sweet and whey cream buttermilk powder, opening the potential for novel food ingredients. Advisors/Committee Members: Qian, Michael (advisor), Jimenez, Rafael (committee member).

Subjects/Keywords: Supercritical Fluid Extraction; Buttermilk

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APA (6^th Edition):

Spence, A. J. (2008). An evaluation into the optimization and application of supercritical fluid extraction and the processing impact on the components in filtrated buttermilk powder. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/9043

Chicago Manual of Style (16^th Edition):

Spence, Amy J. “An evaluation into the optimization and application of supercritical fluid extraction and the processing impact on the components in filtrated buttermilk powder.” 2008. Doctoral Dissertation, Oregon State University. Accessed October 17, 2019. http://hdl.handle.net/1957/9043.

MLA Handbook (7^th Edition):

Spence, Amy J. “An evaluation into the optimization and application of supercritical fluid extraction and the processing impact on the components in filtrated buttermilk powder.” 2008. Web. 17 Oct 2019.

Vancouver:

Spence AJ. An evaluation into the optimization and application of supercritical fluid extraction and the processing impact on the components in filtrated buttermilk powder. [Internet] [Doctoral dissertation]. Oregon State University; 2008. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/1957/9043.

Council of Science Editors:

Spence AJ. An evaluation into the optimization and application of supercritical fluid extraction and the processing impact on the components in filtrated buttermilk powder. [Doctoral Dissertation]. Oregon State University; 2008. Available from: http://hdl.handle.net/1957/9043

Hong Kong University of Science and Technology

3. Lin, Candy Sze Man. Production of high-value added products using supercritical fluid technologies.

Degree: 2012, Hong Kong University of Science and Technology

URL: https://doi.org/10.14711/thesis-b1165707 ; http://repository.ust.hk/ir/bitstream/1783.1-7476/1/th_redirect.html

► The purpose of this study is to better understand the use of carbon dioxide (CO2) supercritical fluid based separation or fabrication techniques to produce high-quality,… (more)

▼ The purpose of this study is to better understand the use of carbon dioxide (CO2) supercritical fluid based separation or fabrication techniques to produce high-quality, high-value added materials, particularly from a solubility perspective. Supercritical fluid is environmentally friendly as compared with organic solvents and possesses properties such as liquid-like densities and high diffusivities that are favorable to various processing operations. In such an operation, the raw materials are processed to yield special properties and improved product attributes to benefit the eventual application. However, due to the different roles that a supercritical fluid takes in different processes, a thorough understanding of the physicochemical phenomena to utilize it properly in each process is essential to obtain a successful product. Indeed, the successful development and design of each technique requires detailed phase behavioral information of the components involved and understanding of the process mechanisms. In this research, we highlight the potentials of supercritical fluid technologies for the production of high-value added materials by developing methods involving chromatography, crystallization, extraction and reaction. Four different processes were investigated to address the issues involved in developing the separation and fabrication processes that can lead to the output of targeted quality products. The first project demonstrates the course of developing a separation process by supercritical fluid chromatography (SFC) that can simultaneously separate high purity single enantiomers of (-)Tröger’s Base 99.19% and (+)Tröger’s Base 98.82% from a racemic mixture. Supercritical CO2 is used as the mobile phase and slight changes in the fluid dynamics would alter separation quality. Solubility parameter calculations and the ternary phase diagram of the system, assist in developing a base case scenario that can be used as a starting point for the separation. An iterative parameter optimization approach then follows to guide decision making to achieve separation performance target. This procedure relies on two causal tables, a constructed compilation of own experiments and those obtained from the literature, that summarizes the qualitative relationship between chromatographic characteristics and separation performance and those between chromatographic characteristics and operating parameters. The second process focuses on obtaining nanoparticles with narrow particle size distributions for the development of a more effective pharmaceutical formulation. The particle formation process by precipitation through compressed anti-solvent (PCA) technique was carried out on salicylic acid as the model drug, ethanol and acetone as the cosolvent, and supercritical CO2 as the anti-solvent. Solubility determination by experiments, and visualization of phase diagrams facilitated the identification of the regions for operation and to effectively precipitate small and uniform particles. It was discovered that particles in the…

Subjects/Keywords: Supercritical fluid chromatography; Supercritical fluid extraction; Supercritical fluids

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APA (6^th Edition):

Lin, C. S. M. (2012). Production of high-value added products using supercritical fluid technologies. (Thesis). Hong Kong University of Science and Technology. Retrieved from https://doi.org/10.14711/thesis-b1165707 ; http://repository.ust.hk/ir/bitstream/1783.1-7476/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lin, Candy Sze Man. “Production of high-value added products using supercritical fluid technologies.” 2012. Thesis, Hong Kong University of Science and Technology. Accessed October 17, 2019. https://doi.org/10.14711/thesis-b1165707 ; http://repository.ust.hk/ir/bitstream/1783.1-7476/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lin, Candy Sze Man. “Production of high-value added products using supercritical fluid technologies.” 2012. Web. 17 Oct 2019.

Vancouver:

Lin CSM. Production of high-value added products using supercritical fluid technologies. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2012. [cited 2019 Oct 17]. Available from: https://doi.org/10.14711/thesis-b1165707 ; http://repository.ust.hk/ir/bitstream/1783.1-7476/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lin CSM. Production of high-value added products using supercritical fluid technologies. [Thesis]. Hong Kong University of Science and Technology; 2012. Available from: https://doi.org/10.14711/thesis-b1165707 ; http://repository.ust.hk/ir/bitstream/1783.1-7476/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

4. Yi, Jung-Seok. The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide.

Degree: MS, Chemical Engineering, 1993, Oregon State University

URL: http://hdl.handle.net/1957/37192

► The extraction of pentachlorophenol (PCP) from pressure treated wood wafers with supercritical carbon dioxide has been studied. Experimental data were obtained for the effects of… (more)

Subjects/Keywords: Supercritical fluid extraction

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APA (6^th Edition):

Yi, J. (1993). The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/37192

Chicago Manual of Style (16^th Edition):

Yi, Jung-Seok. “The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide.” 1993. Masters Thesis, Oregon State University. Accessed October 17, 2019. http://hdl.handle.net/1957/37192.

MLA Handbook (7^th Edition):

Yi, Jung-Seok. “The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide.” 1993. Web. 17 Oct 2019.

Vancouver:

Yi J. The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide. [Internet] [Masters thesis]. Oregon State University; 1993. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/1957/37192.

Council of Science Editors:

Yi J. The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide. [Masters Thesis]. Oregon State University; 1993. Available from: http://hdl.handle.net/1957/37192

North-West University

5. Mastoroudes, Bruce De Cliffordt. Feasibility of thorium extraction from a solid monazite matrix utilizing supercritical CO2 with TBP and HFA as chelates / Bruce De Cliffordt Mastoroudes .

Degree: 2014, North-West University

URL: http://hdl.handle.net/10394/16267

► With current energy demands globally and locally, nuclear energy remains one of the top competitors for cleaner and sustainable energy. The nuclear industry requires more… (more)

▼ With current energy demands globally and locally, nuclear energy remains one of the top competitors for cleaner and sustainable energy. The nuclear industry requires more inherent safety and proliferation resistance in reactor design. Thorium has therefore been identified as a possible fuel for future nuclear reactors that can comply with these requirements. However current extraction techniques are expensive, time consuming and generate large quantities of hazardous waste. A possible alternative to conventional solvent extraction of thorium is SFE (Supercritical Fluid Extraction). A monazite sample from the Steenkampskraal mine was investigated using SEM (Scanning Electron Microscope) analysis methods to determine the distribution of thorium in the grains that could potentially complicate the effectiveness of the SFE extraction method if zoning is present. The results show a homogeneous distribution with no discernable zonation in the grains. The concentration of Th, Ce and Nd was determined by quantitative MPA (Micro Probe Analysis). The results obtained from the MPA point analysis on several grains show average Th, Ce and Nd concentrations of 6.5 wt. %, 24.1 wt. % and 9.7 wt. % respectively. The extraction of Th+4 from a filter paper was conducted to verify the extraction procedure and extractability of transition elements employing SFE. The extraction was conducted using supercritical CO2 and methanol as co-solvent with TBP (Tributyl Phosphate) and HFA (Hexafluoroacetylacetone) added in situ as chelates. ICP-MS results for the Th+4 extraction procedure showed extraction efficiency of 53 % compared to 83 % in literature (Kumar et al. 2009). This marked difference in extraction efficiency is attributed to ineffective trapping methods employed and lack of prior maintenance and support on the extraction apparatus. Subsequently all further extracted samples of Th from monazite were tested using XRF analysis methods. Due to the lack of prior maintenance on the extraction apparatus several technical breakdowns were encountered and addressed from a mechanical engineering standpoint. The operational effectiveness of the modified apparatus was verified through the extraction of marula seed oil and compared with another supercritical fluid (SF) extractor to show 50 % extraction efficiency in each case. A review of the literature indicated that the crystal chemical requirements for substitution of trivalent (Ce+3) for tetravalent (Th+4) may be fulfilled during SFE processes. Experimental substitution extractions were conducted by addition of different chelates and were conducted by subjecting the monazite samples to 20 MPa pressure for 180 min static flow and 10 min continuous flow extraction times with a CO2 flow rate of 2 mL/min with 10 % co-solvent flow rate. The results of the two sets of substitution extractions namely α and β show no clear indication of Th extraction. The maximum theoretical efficiency obtainable under current extraction equipment limitations was calculated as 12%. The XRF analysis error margin was…

Subjects/Keywords: Supercritical fluid; CO2; Chelates; Thorium; Rare earth elements; Supercritical fluid extraction; Solvent extraction

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APA (6^th Edition):

Mastoroudes, B. D. C. (2014). Feasibility of thorium extraction from a solid monazite matrix utilizing supercritical CO2 with TBP and HFA as chelates / Bruce De Cliffordt Mastoroudes . (Thesis). North-West University. Retrieved from http://hdl.handle.net/10394/16267

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mastoroudes, Bruce De Cliffordt. “Feasibility of thorium extraction from a solid monazite matrix utilizing supercritical CO2 with TBP and HFA as chelates / Bruce De Cliffordt Mastoroudes .” 2014. Thesis, North-West University. Accessed October 17, 2019. http://hdl.handle.net/10394/16267.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mastoroudes, Bruce De Cliffordt. “Feasibility of thorium extraction from a solid monazite matrix utilizing supercritical CO2 with TBP and HFA as chelates / Bruce De Cliffordt Mastoroudes .” 2014. Web. 17 Oct 2019.

Vancouver:

Mastoroudes BDC. Feasibility of thorium extraction from a solid monazite matrix utilizing supercritical CO2 with TBP and HFA as chelates / Bruce De Cliffordt Mastoroudes . [Internet] [Thesis]. North-West University; 2014. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/10394/16267.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mastoroudes BDC. Feasibility of thorium extraction from a solid monazite matrix utilizing supercritical CO2 with TBP and HFA as chelates / Bruce De Cliffordt Mastoroudes . [Thesis]. North-West University; 2014. Available from: http://hdl.handle.net/10394/16267

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

6. La, Helen. Extraction of bitumen from Athabasca oil sand slurry using supercritical carbon Dioxide.

Degree: MS, Department of Civil and Environmental Engineering, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/8910jt57v

► Extraction of hydrocarbons from an Athabasca oil sand slurry were conducted using supercritical carbon dioxide (SC-CO2). The oil sand was slurried to a 1:1 ratio… (more)

Subjects/Keywords: Supercritical fluid extraction; Bitumen; Athabasca oil sand; Slurry extraction; Supercritical carbon dioxide extraction

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APA (6^th Edition):

La, H. (2011). Extraction of bitumen from Athabasca oil sand slurry using supercritical carbon Dioxide. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/8910jt57v

Chicago Manual of Style (16^th Edition):

La, Helen. “Extraction of bitumen from Athabasca oil sand slurry using supercritical carbon Dioxide.” 2011. Masters Thesis, University of Alberta. Accessed October 17, 2019. https://era.library.ualberta.ca/files/8910jt57v.

MLA Handbook (7^th Edition):

La, Helen. “Extraction of bitumen from Athabasca oil sand slurry using supercritical carbon Dioxide.” 2011. Web. 17 Oct 2019.

Vancouver:

La H. Extraction of bitumen from Athabasca oil sand slurry using supercritical carbon Dioxide. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2019 Oct 17]. Available from: https://era.library.ualberta.ca/files/8910jt57v.

Council of Science Editors:

La H. Extraction of bitumen from Athabasca oil sand slurry using supercritical carbon Dioxide. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/8910jt57v

University of Alberta

7. Fang, Yi. Extraction of hydrocarbons from oil sand using supercritical carbon dioxid.

Degree: MS, Department of Civil and Environmental Engineering, 2010, University of Alberta

URL: https://era.library.ualberta.ca/files/9g54xk200

► This study investigates the extraction of hydrocarbons from oil sand using supercritical carbon dioxide (SC CO2). Experiments were carried out on three different types of… (more)

Subjects/Keywords: supercritical fluid extraction; oil sand; supercritical carbon dioxid; Dean-Stark extraction; hydrocarbons

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APA (6^th Edition):

Fang, Y. (2010). Extraction of hydrocarbons from oil sand using supercritical carbon dioxid. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/9g54xk200

Chicago Manual of Style (16^th Edition):

Fang, Yi. “Extraction of hydrocarbons from oil sand using supercritical carbon dioxid.” 2010. Masters Thesis, University of Alberta. Accessed October 17, 2019. https://era.library.ualberta.ca/files/9g54xk200.

MLA Handbook (7^th Edition):

Fang, Yi. “Extraction of hydrocarbons from oil sand using supercritical carbon dioxid.” 2010. Web. 17 Oct 2019.

Vancouver:

Fang Y. Extraction of hydrocarbons from oil sand using supercritical carbon dioxid. [Internet] [Masters thesis]. University of Alberta; 2010. [cited 2019 Oct 17]. Available from: https://era.library.ualberta.ca/files/9g54xk200.

Council of Science Editors:

Fang Y. Extraction of hydrocarbons from oil sand using supercritical carbon dioxid. [Masters Thesis]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/9g54xk200

Louisiana State University

8. Du, Tianchuan. Supercritical fluid extraction and analysis of plant oils.

Degree: MS, Environmental Sciences, 2009, Louisiana State University

URL: etd-07082009-083522 ; https://digitalcommons.lsu.edu/gradschool_theses/1005

► Supercritical fluid extraction (SFE) of oxeye daisy (Chrysanthemum leucanthemum L.) seed, heartwood of Port-Orford cedar (POC) (Chamaecyparis lawsoniana), Alaska yellow cedar (AYC) (Chamaecyparis nootkatensis),… (more)

Subjects/Keywords: antifungal; supercritical fluid extraction; carbon dioxide; oil extraction; antioxidant

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APA (6^th Edition):

Du, T. (2009). Supercritical fluid extraction and analysis of plant oils. (Masters Thesis). Louisiana State University. Retrieved from etd-07082009-083522 ; https://digitalcommons.lsu.edu/gradschool_theses/1005

Chicago Manual of Style (16^th Edition):

Du, Tianchuan. “Supercritical fluid extraction and analysis of plant oils.” 2009. Masters Thesis, Louisiana State University. Accessed October 17, 2019. etd-07082009-083522 ; https://digitalcommons.lsu.edu/gradschool_theses/1005.

MLA Handbook (7^th Edition):

Du, Tianchuan. “Supercritical fluid extraction and analysis of plant oils.” 2009. Web. 17 Oct 2019.

Vancouver:

Du T. Supercritical fluid extraction and analysis of plant oils. [Internet] [Masters thesis]. Louisiana State University; 2009. [cited 2019 Oct 17]. Available from: etd-07082009-083522 ; https://digitalcommons.lsu.edu/gradschool_theses/1005.

Council of Science Editors:

Du T. Supercritical fluid extraction and analysis of plant oils. [Masters Thesis]. Louisiana State University; 2009. Available from: etd-07082009-083522 ; https://digitalcommons.lsu.edu/gradschool_theses/1005

University of Lund

9. Abrahamsson, Victor. Fundamental research on supercritical fluid extraction kinetics : From on-line measurements to inverse modeling.

Degree: 2016, University of Lund

URL: http://lup.lub.lu.se/record/bf52bcce-55aa-4023-9724-059cf8e27284 ; http://portal.research.lu.se/ws/files/15722515/120581_2_G5_Victor_A_electronic.pdf

► Supercritical fluid extraction is an extraction technique suitable for lipophilic compounds from solid samples. Most commonly supercritical carbon dioxide is the main component in the… (more)

▼ Supercritical fluid extraction is an extraction technique suitable for lipophilic compounds from solid samples. Most commonly supercritical carbon dioxide is the main component in the extraction phase, rendering the technique relatively environmentally benign. The extraction technique is rapid due to the low viscosity and the high diffusivity of analytes in the supercritical extraction phase.The selectivity can be tuned by changing the extraction conditions of pressure, temperature and co-solvent amount. These process parameters along with flow rate and extraction time make optimization of an extraction method rather cumbersome. A fundamental understanding of the extraction process can help to make wise decisions during method development. In this work extractability, partitioning, solubility and internal and external mass transfer resistancehave been studied through inverse modeling.Methods based on in-line spectrophotometric measurements and on-line evaporative light scattering detection have been developed to efficiently acquire extraction curves, i.e., the extraction yield over time. These enable a highthroughput of extractions with high temporal resolution and good precision. The methods were applied to quantify total lipids from linseed and carotenoids, chlorophyll A, ergosterol and total lipids from microalgae. An off-line method for separating carotenoids based on supercritical fluid chromatography was also developed.Methodologies have been developed to acquire models which are calibrated using all experiments, so called complete calibration. It is shown that calibrating one model per experiment does not generate models with reliable parameters with physical meaning. The models can be used for predicting extraction curves within the investigated space of process parameters.Finally, extractability and partitioning are shown to be highly influential on the extraction process. Also, partitioning can give rise to diminishing extraction rates, which has previously believed only to be caused by intraparticlediffusion.

Subjects/Keywords: Analytisk kemi; supercritical fluid extraction; supercritical fluid chromatography; linseed; microalgae; extraction kinetics; inverse modeling; curve resolution

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APA (6^th Edition):

Abrahamsson, V. (2016). Fundamental research on supercritical fluid extraction kinetics : From on-line measurements to inverse modeling. (Doctoral Dissertation). University of Lund. Retrieved from http://lup.lub.lu.se/record/bf52bcce-55aa-4023-9724-059cf8e27284 ; http://portal.research.lu.se/ws/files/15722515/120581_2_G5_Victor_A_electronic.pdf

Chicago Manual of Style (16^th Edition):

Abrahamsson, Victor. “Fundamental research on supercritical fluid extraction kinetics : From on-line measurements to inverse modeling.” 2016. Doctoral Dissertation, University of Lund. Accessed October 17, 2019. http://lup.lub.lu.se/record/bf52bcce-55aa-4023-9724-059cf8e27284 ; http://portal.research.lu.se/ws/files/15722515/120581_2_G5_Victor_A_electronic.pdf.

MLA Handbook (7^th Edition):

Abrahamsson, Victor. “Fundamental research on supercritical fluid extraction kinetics : From on-line measurements to inverse modeling.” 2016. Web. 17 Oct 2019.

Vancouver:

Abrahamsson V. Fundamental research on supercritical fluid extraction kinetics : From on-line measurements to inverse modeling. [Internet] [Doctoral dissertation]. University of Lund; 2016. [cited 2019 Oct 17]. Available from: http://lup.lub.lu.se/record/bf52bcce-55aa-4023-9724-059cf8e27284 ; http://portal.research.lu.se/ws/files/15722515/120581_2_G5_Victor_A_electronic.pdf.

Council of Science Editors:

Abrahamsson V. Fundamental research on supercritical fluid extraction kinetics : From on-line measurements to inverse modeling. [Doctoral Dissertation]. University of Lund; 2016. Available from: http://lup.lub.lu.se/record/bf52bcce-55aa-4023-9724-059cf8e27284 ; http://portal.research.lu.se/ws/files/15722515/120581_2_G5_Victor_A_electronic.pdf

University of Alberta

10. Jones, Christopher Robert. Treatment of oily drill cuttings slurries using supercritical carbon dioxide.

Degree: MS, Department of Civil and Environmental Engineering, 2010, University of Alberta

URL: https://era.library.ualberta.ca/files/9019s2885

► Research was conducted into using supercritical fluid extraction (SFE) for removing hydrocarbons from drill cuttings slurries, which will be used in a pilot-scale continuous SFE… (more)

Subjects/Keywords: supercritical fluid; extraction; hydrocarbon; water; drill cuttings; slurry; carbon dioxide

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APA (6^th Edition):

Jones, C. R. (2010). Treatment of oily drill cuttings slurries using supercritical carbon dioxide. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/9019s2885

Chicago Manual of Style (16^th Edition):

Jones, Christopher Robert. “Treatment of oily drill cuttings slurries using supercritical carbon dioxide.” 2010. Masters Thesis, University of Alberta. Accessed October 17, 2019. https://era.library.ualberta.ca/files/9019s2885.

MLA Handbook (7^th Edition):

Jones, Christopher Robert. “Treatment of oily drill cuttings slurries using supercritical carbon dioxide.” 2010. Web. 17 Oct 2019.

Vancouver:

Jones CR. Treatment of oily drill cuttings slurries using supercritical carbon dioxide. [Internet] [Masters thesis]. University of Alberta; 2010. [cited 2019 Oct 17]. Available from: https://era.library.ualberta.ca/files/9019s2885.

Council of Science Editors:

Jones CR. Treatment of oily drill cuttings slurries using supercritical carbon dioxide. [Masters Thesis]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/9019s2885

University of KwaZulu-Natal

11. [No author]. Applications of fluorocarbons for supercritical extraction in the petroleum industry.

Degree: 2016, University of KwaZulu-Natal

URL: http://hdl.handle.net/10413/14412

► The majority of supercritical processes utilise carbon dioxide (CO2) as the principal solvent, because CO2 has many attributes that make it an ideal supercritical fluid… (more)

▼ The majority of supercritical processes utilise carbon dioxide (CO2) as the principal solvent, because CO2 has many attributes that make it an ideal supercritical fluid (SCF) solvent. This study investigates the possibility of replacing CO2 with trifluoromethane or hexafluoroethane, because of the poor performance of CO2 in cases where more polar and heavier molecular weight solutes must be extracted. Several applications in the petroleum industry, such as oil sludge treatment and the treatment of contaminated soils, are discussed. Due to the large number hydrocarbons present in such applications, a selection of solutes that could be used to simulate a simplified stream were chosen for these investigations. These selected solutes were n-hexane, n-heptane, n-octane, n-nonane, n-decane, n-undecane, 1-hexene, 3-methylpentane, methylcyclohexane, toluene and water. High-pressure vapour-liquid equilibria and vapour-liquidliquid equilibria for binary systems containing either trifluoromethane or hexafluoroethane, with these solutes were measured using a static-analytic apparatus at temperatures of between (272.9 and 313.2) K. For several systems, the phase equilibria data were verified using bubble-point pressures measured with a static-synthetic, variable-volume cell. Parameters for thermodynamic models were obtained by regression of the experimental data for the binary systems. The models provide a good representation of the majority of the systems investigated, and were therefore also used to estimate portions of the critical locus curves. These critical locus curves were compared to the critical loci that were extrapolated from the sub-critical coexistence data as well as critical loci that were measured with a critical point determination apparatus. There is satisfactory agreement between the calculated, the extrapolated and the measured critical loci. The thermodynamic models were used to simulate the separation of several hydrocarbon-water emulsions using either CO2, trifluoromethane, hexafluoroethane or mixtures thereof. The simulations confirmed that trifluoromethane, hexafluoroethane as well as mixtures thereof, provide improved performances (recoveries and yields) when used as alternative solvents in the SCF extraction of these systems. An economic analysis of a SCF extraction process was performed to investigate the performance of the solvents, and if such SCF extraction processes, using a mixture of trifluoromethane and hexafluoroethane, would provide an economically competitive treatment process for hydrocarbon-water emulsions. Advisors/Committee Members: Ramjugernath, Deresh D (advisor), Naidoo, P (advisor).

Subjects/Keywords: Fluorocarbons.; Petroleum industry and trade.; Supercritical fluid extraction.; Chemical engineering.

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APA (6^th Edition):

author], [. (2016). Applications of fluorocarbons for supercritical extraction in the petroleum industry. (Thesis). University of KwaZulu-Natal. Retrieved from http://hdl.handle.net/10413/14412

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

author], [No. “Applications of fluorocarbons for supercritical extraction in the petroleum industry. ” 2016. Thesis, University of KwaZulu-Natal. Accessed October 17, 2019. http://hdl.handle.net/10413/14412.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

author], [No. “Applications of fluorocarbons for supercritical extraction in the petroleum industry. ” 2016. Web. 17 Oct 2019.

Vancouver:

author] [. Applications of fluorocarbons for supercritical extraction in the petroleum industry. [Internet] [Thesis]. University of KwaZulu-Natal; 2016. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/10413/14412.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

author] [. Applications of fluorocarbons for supercritical extraction in the petroleum industry. [Thesis]. University of KwaZulu-Natal; 2016. Available from: http://hdl.handle.net/10413/14412

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

McGill University

12. Wang, Jin, 1954-. Extraction of heavy metals with supercritical carbon dioxide : a novel approach to heavy metal analysis and decontamination.

Degree: PhD, Department of Food Science and Agricultural Chemistry., 1995, McGill University

URL: http://digitool.library.mcgill.ca/thesisfile39890.pdf

► The technique of extraction with supercritical carbon dioxide (SC-CO sb2), which is now used routinely for the recovery of non-polar analytes from a variety of… (more)

▼ The technique of extraction with supercritical carbon dioxide (SC-CO sb2), which is now used routinely for the recovery of non-polar analytes from a variety of liquid and semipermeable solid media, was extended to the efficient extraction of metal ions. Measurements of the solubilities in SC-CO sb2 corroborated the hypothesis that the non-polar character of a series of tetraalkylammoniun dialkyldithiocarbamates ion pairs was influenced (i) primarily by the chain length of the alkyl substituent(s) on the carbamate nitrogen and (ii) to a lesser extent, by the chain length of the alkyl substituent(s) on the ammonium counter ion. In operation, analyte metal(s) in aqueous medium was derivatized by in situ complexation with the dithiocarbamate complexing reagent and the product complex(es) was partitioned into the SC-CO sb2 mobile phase then purged from the extractor by replacing the headspace with fresh solvent. A novel silica flame-in-tube interface was developed for the sensitive detection, by atomic absorption spectrometry (AAS), of As, Cd, Cu, Mn, Pb, Se, or Zn in SC-CO sb2 extractor eluate. For different analyte elements, the limits of detection (LODs) ranged from sub-nanogram to low picogram if standard was flow injected into the mobile phase. These sensitivities permitted differences in the rates of mobilization of different forms of the analyte metal from various media to be explored as a technique for probing the interaction of the analyte metal with the matrix. A portion of the Zn burden in fresh bovine liver was mobilized rapidly in the absence of complexing agent and the remainder was solubilized more rapidly than the Zn in a freeze-dried reference material of this tissue. The nebulizer assembly of a conventional flame-AAS was modified to extend the range of metals amenable to on-line detection. Supplemental heating of the inlet air to 200 sp circC resulted in an on line detector which provided approximately a ten-fold improvement over convention Advisors/Committee Members: Marshall, William D. (advisor).

Subjects/Keywords: Heavy metals.; Supercritical fluid extraction.

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APA (6^th Edition):

Wang, Jin, 1. (1995). Extraction of heavy metals with supercritical carbon dioxide : a novel approach to heavy metal analysis and decontamination. (Doctoral Dissertation). McGill University. Retrieved from http://digitool.library.mcgill.ca/thesisfile39890.pdf

Chicago Manual of Style (16^th Edition):

Wang, Jin, 1954-. “Extraction of heavy metals with supercritical carbon dioxide : a novel approach to heavy metal analysis and decontamination.” 1995. Doctoral Dissertation, McGill University. Accessed October 17, 2019. http://digitool.library.mcgill.ca/thesisfile39890.pdf.

MLA Handbook (7^th Edition):

Wang, Jin, 1954-. “Extraction of heavy metals with supercritical carbon dioxide : a novel approach to heavy metal analysis and decontamination.” 1995. Web. 17 Oct 2019.

Vancouver:

Wang, Jin 1. Extraction of heavy metals with supercritical carbon dioxide : a novel approach to heavy metal analysis and decontamination. [Internet] [Doctoral dissertation]. McGill University; 1995. [cited 2019 Oct 17]. Available from: http://digitool.library.mcgill.ca/thesisfile39890.pdf.

Council of Science Editors:

Wang, Jin 1. Extraction of heavy metals with supercritical carbon dioxide : a novel approach to heavy metal analysis and decontamination. [Doctoral Dissertation]. McGill University; 1995. Available from: http://digitool.library.mcgill.ca/thesisfile39890.pdf

Oregon State University

13. Tang, Yi-Min. Itraconazole formation using supercritical carbon dioxide.

Degree: MS, Chemical Engineering, 2000, Oregon State University

URL: http://hdl.handle.net/1957/33376

Subjects/Keywords: Supercritical fluid extraction – Mathematical models

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APA (6^th Edition):

Tang, Y. (2000). Itraconazole formation using supercritical carbon dioxide. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/33376

Chicago Manual of Style (16^th Edition):

Tang, Yi-Min. “Itraconazole formation using supercritical carbon dioxide.” 2000. Masters Thesis, Oregon State University. Accessed October 17, 2019. http://hdl.handle.net/1957/33376.

MLA Handbook (7^th Edition):

Tang, Yi-Min. “Itraconazole formation using supercritical carbon dioxide.” 2000. Web. 17 Oct 2019.

Vancouver:

Tang Y. Itraconazole formation using supercritical carbon dioxide. [Internet] [Masters thesis]. Oregon State University; 2000. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/1957/33376.

Council of Science Editors:

Tang Y. Itraconazole formation using supercritical carbon dioxide. [Masters Thesis]. Oregon State University; 2000. Available from: http://hdl.handle.net/1957/33376

The Ohio State University

14. SREENIVASARAGHAVAN, SOWMYANARASIMHAN. A Study of the Effects of Supercritical CO 2 Treatment on Physicochemical Properties of Spray-Dried Buttermilk Powder to Develop a Novel Dairy Processing Operation.

Degree: MS, Food Science and Technology, 2018, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1534685778937538

► An increase in environmental and health concerns in consumers has led to the demand for `greener’ food processing techniques. Supercritical Fluid Extraction has been demonstrated… (more)

▼ An increase in environmental and health concerns in consumers has led to the demand for `greener’ food processing techniques. Supercritical Fluid Extraction has been demonstrated as a reliable technique to extract triglycerides and volatiles from food, but knowledge of its effect on dairy foods is limited. Buttermilk in the form of spray-dried powder is lauded for its solubility, emulsification, and heat-constancy properties while also providing a uniform creamy flavor as an ingredient various milk and dairy powder formulations. Despite its large market presence, it is regarded as a low-value addition, and there is potential for improvement of powder properties. The objective of this work was to study the triglyceride-extraction ability of supercritical fluid extraction using CO2 and its impact on some key physicochemical properties of defatted spray-dried buttermilk. Initial single-cycle trials were run to determine the optimal flow rate and duration of treatment for maximum triglyceride removal using a Supercritical Fluid Extraction system. A 3-factor central composite design was then used with temperature, pressure, and time as the independent variables to be controlled. A total of 20 2-cycle runs with 6 center point repeats was performed. Samples were subjected to analyses to study triglyceride removal, solubility index, protein solubility, particle size, foaming/foam stability, water activity, hygroscopicity, heating properties, and morphology. The results showed increased triglyceride extraction with increasing temperature and time while increased pressure did not have an appreciable effect. The increased removal of fat corresponded to increase in solubility index and protein solubility up to a temperature, after which a decrease was noted. Increased foaming was observed with increased fat removal, while a decrease in foam stability was seen with increased fat removal. An increase in water activity was observed with increased temperature, pressure, and time while a corresponding decrease in hygroscopicity was observed. No discernable trend was seen in particle size with increase in parameters. Under microscopic observation, the treated powders showed clearly distinguishable decrease in surface sheen, while particle diameters did not show any specific trend. Advisors/Committee Members: Jimenez-Flores, Rafael (Advisor).

Subjects/Keywords: Food Science; Supercritical Fluid Extraction, Dairy, Buttermilk Powder

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APA (6^th Edition):

SREENIVASARAGHAVAN, S. (2018). A Study of the Effects of Supercritical CO 2 Treatment on Physicochemical Properties of Spray-Dried Buttermilk Powder to Develop a Novel Dairy Processing Operation. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1534685778937538

Chicago Manual of Style (16^th Edition):

SREENIVASARAGHAVAN, SOWMYANARASIMHAN. “A Study of the Effects of Supercritical CO 2 Treatment on Physicochemical Properties of Spray-Dried Buttermilk Powder to Develop a Novel Dairy Processing Operation.” 2018. Masters Thesis, The Ohio State University. Accessed October 17, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534685778937538.

MLA Handbook (7^th Edition):

SREENIVASARAGHAVAN, SOWMYANARASIMHAN. “A Study of the Effects of Supercritical CO 2 Treatment on Physicochemical Properties of Spray-Dried Buttermilk Powder to Develop a Novel Dairy Processing Operation.” 2018. Web. 17 Oct 2019.

Vancouver:

SREENIVASARAGHAVAN S. A Study of the Effects of Supercritical CO 2 Treatment on Physicochemical Properties of Spray-Dried Buttermilk Powder to Develop a Novel Dairy Processing Operation. [Internet] [Masters thesis]. The Ohio State University; 2018. [cited 2019 Oct 17]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1534685778937538.

Council of Science Editors:

SREENIVASARAGHAVAN S. A Study of the Effects of Supercritical CO 2 Treatment on Physicochemical Properties of Spray-Dried Buttermilk Powder to Develop a Novel Dairy Processing Operation. [Masters Thesis]. The Ohio State University; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1534685778937538

Kansas State University

15. Li, Bingyi. Selective extraction of phospholipids from dairy powders using supercritical fluid extraction.

Degree: MS, Food Science Institute, 2017, Kansas State University

URL: http://hdl.handle.net/2097/38171

► In recent years, the interest in functional components such as phospholipids (PLs) is increasing as a result of growing awareness of their health benefits. PLs… (more)

▼ In recent years, the interest in functional components such as phospholipids (PLs) is increasing as a result of growing awareness of their health benefits. PLs affect several cell functions, such as growth, molecular transport system, memory processing, stress responses, and central nervous system myelination. Many studies have shown that the neutral lipids can be successfully extracted using supercritical carbon dioxide (SCO₂) from different types of foods such as egg, canola, pumpkin seed, fish and dairy powders. It is an alternative method to avoid the use of large quantities organic solvents. The SCO₂ is a safe, environmentally friendly and economical process to extract edible lipids from a variety of matrices. However, a modifier such as ethanol is needed to fractionate PLs due to limited solubility of PLs in SCO₂. The objectives of this study were to optimize the SFE process parameters and to determine the effect of pressure, temperature, and ethanol concentration on the extraction efficiency of PLs from whey protein phospholipid concentrate (WPPC) and buttermilk powder (BMP). Three different batches of WPPC and BMP were obtained from a commercial manufacturer and followed a unique two-step extraction process to isolate PLs from WPPC and BMP. In Step-1, neat supercritical CO₂ was used to remove all the neutral lipids at 414 bar pressure, 60 °C sample temperature, and 5 L/min CO₂ flow rate. The spent solids, the powder left after the first step extraction, were used to extract PLs in the second step. The Step-2 (SCO₂-Ethanol) process was optimized in terms of pressure (350, 414 and 550 bar), temperature (40 °C and 60 °C) and concentration of ethanol (10%, 15% and 20%) as independent factors. All the lipid fractions were analyzed by high performance lipid chromatography (HPLC) and thin layer chromatography (TLC). For WPPC, only ethanol concentration had significant effect (P < 0.05) on the amount of PLs extracted after the Step-2. On the other hand, temperature and ethanol concentration were significantly (P < 0.05) affected the efficiency of SFE for BMP. The optimal processing conditions for WPPC and BMP were 350 bar pressure, 60 °C sample temperature and 15% concentration of ethanol, and 550 bar of pressure, 60 °C sample temperature and 15% concentration of ethanol, respectively. This study allowed obtaining PLs from dairy co-products such as WPPC and BMP as a separate ingredient and this could be useful in nutraceutical and infant formulations as well as different food products formulations. Advisors/Committee Members: Jayendra K. Amamcharla.

Subjects/Keywords: Supercritical fluid extraction; Whey protein phospholipid concentrate; Pro-cream; Buttermilk powder

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APA (6^th Edition):

Li, B. (2017). Selective extraction of phospholipids from dairy powders using supercritical fluid extraction. (Masters Thesis). Kansas State University. Retrieved from http://hdl.handle.net/2097/38171

Chicago Manual of Style (16^th Edition):

Li, Bingyi. “Selective extraction of phospholipids from dairy powders using supercritical fluid extraction.” 2017. Masters Thesis, Kansas State University. Accessed October 17, 2019. http://hdl.handle.net/2097/38171.

MLA Handbook (7^th Edition):

Li, Bingyi. “Selective extraction of phospholipids from dairy powders using supercritical fluid extraction.” 2017. Web. 17 Oct 2019.

Vancouver:

Li B. Selective extraction of phospholipids from dairy powders using supercritical fluid extraction. [Internet] [Masters thesis]. Kansas State University; 2017. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/2097/38171.

Council of Science Editors:

Li B. Selective extraction of phospholipids from dairy powders using supercritical fluid extraction. [Masters Thesis]. Kansas State University; 2017. Available from: http://hdl.handle.net/2097/38171

University of Missouri – Columbia

16. Abeln, Brandon D., 1984-. Effects of a combined supercritical extraction/thermal cycle on binder removal cycle time, yield, residual carbon, and defect formation in multilayer ceramic capacitors.

Degree: 2010, University of Missouri – Columbia

URL: https://doi.org/10.32469/10355/10573

► In this work, a combined cycle consisting of a supercritical extraction cycle (SCE) followed by a thermal cycle (TC), was used to remove binder from… (more)

Subjects/Keywords: Supercritical fluid extraction; Ceramic capacitors; Binders (Materials); Propylene carbonate

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APA (6^th Edition):

Abeln, Brandon D., 1. (2010). Effects of a combined supercritical extraction/thermal cycle on binder removal cycle time, yield, residual carbon, and defect formation in multilayer ceramic capacitors. (Thesis). University of Missouri – Columbia. Retrieved from https://doi.org/10.32469/10355/10573

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Abeln, Brandon D., 1984-. “Effects of a combined supercritical extraction/thermal cycle on binder removal cycle time, yield, residual carbon, and defect formation in multilayer ceramic capacitors.” 2010. Thesis, University of Missouri – Columbia. Accessed October 17, 2019. https://doi.org/10.32469/10355/10573.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Abeln, Brandon D., 1984-. “Effects of a combined supercritical extraction/thermal cycle on binder removal cycle time, yield, residual carbon, and defect formation in multilayer ceramic capacitors.” 2010. Web. 17 Oct 2019.

Vancouver:

Abeln, Brandon D. 1. Effects of a combined supercritical extraction/thermal cycle on binder removal cycle time, yield, residual carbon, and defect formation in multilayer ceramic capacitors. [Internet] [Thesis]. University of Missouri – Columbia; 2010. [cited 2019 Oct 17]. Available from: https://doi.org/10.32469/10355/10573.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Abeln, Brandon D. 1. Effects of a combined supercritical extraction/thermal cycle on binder removal cycle time, yield, residual carbon, and defect formation in multilayer ceramic capacitors. [Thesis]. University of Missouri – Columbia; 2010. Available from: https://doi.org/10.32469/10355/10573

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University

17. Martino, Karina G. (Karina Gorostiaga). Supercritical fluid extraction of quercetin from onion skins.

Degree: MS, 2003, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:32260

Subjects/Keywords: Quercetin; Supercritical fluid extraction

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APA (6^th Edition):

Martino, K. G. (. G. (2003). Supercritical fluid extraction of quercetin from onion skins. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:32260

Chicago Manual of Style (16^th Edition):

Martino, Karina G (Karina Gorostiaga). “Supercritical fluid extraction of quercetin from onion skins.” 2003. Masters Thesis, Michigan State University. Accessed October 17, 2019. http://etd.lib.msu.edu/islandora/object/etd:32260.

MLA Handbook (7^th Edition):

Martino, Karina G (Karina Gorostiaga). “Supercritical fluid extraction of quercetin from onion skins.” 2003. Web. 17 Oct 2019.

Vancouver:

Martino KG(G. Supercritical fluid extraction of quercetin from onion skins. [Internet] [Masters thesis]. Michigan State University; 2003. [cited 2019 Oct 17]. Available from: http://etd.lib.msu.edu/islandora/object/etd:32260.

Council of Science Editors:

Martino KG(G. Supercritical fluid extraction of quercetin from onion skins. [Masters Thesis]. Michigan State University; 2003. Available from: http://etd.lib.msu.edu/islandora/object/etd:32260

University of KwaZulu-Natal

18. Modey, William Kojo. Supercritical fluid extraction and analysis of extracts from selected Meliaceae species.

Degree: MS, Chemistry, 1995, University of KwaZulu-Natal

URL: http://hdl.handle.net/10413/5032

► The thesis outlines an investigative study of the supercritical fluid extraction (SFE) of organic natural products from two Meliaceae species. Extractions from ground wood, bark… (more)

▼ The thesis outlines an investigative study of the supercritical fluid extraction (SFE) of organic natural products from two Meliaceae species. Extractions from ground wood, bark and seeds of the selected species were studied. Qualitative and quantitative studies were performed using a number of techniques. In the qualitative study, both off-line and on-line combination of micro-SFE with capillary gas chromatography (SFE-GC) were performed on the wood and bark of Cedrela toona to show the applicability of the technique in the analysis of semi-volatile components from plant matrices. Results for the on-line and off-line SFE-GC were comparable and indicated that the on-line studies could be used to predict results obtainable from large scale SFE. Dynamic SFE of the limonoid (cedrelone) from the wood of Cedrela toona using pure and modified carbon dioxide was studied on the basis of a theoretically-derived dynamic extraction model. Extracts were collected for different lengths of time in order to investigate the extraction kinetics of this compound. The theoretically-derived model which involved extrapolating data obtained from shorter extraction times was used to estimate the amount of the compound present in the wood. The estimated quantitative results were found to be comparable to exhaustive extractions using liquid hexane as well as methanol-modified carbon dioxide. Further, data from the SFE extractions were fitted into the model to produce a characteristic kinetic curve from which factors controlling the extraction of the specific compound could be predicted. Following the dynamic extraction study, a statistical optimisation strategy was used to propose a model equation for the extraction of cedrelone from the wood of Cedrela toona. As the preliminary step, a screening design utilising a two level, three-factor full factorial analysis was used to study the effects of the variables pressure, temperature and the length of extraction time on the yields of cedrelone from the wood of Cedrela toona. By a statistical analysis of variance (ANOVA) at the 95% confidence level on the preliminary data collected, pressure and temperature were found to be the significant variables influencing the yields of the compound. Finally response surface methodology using the central composite design was used in an attempt to determine the maximum response space for the pressure and temperature effects by plotting a 3-dimensional response surface graph. An ANOVA study at the 99% confidence level was then employed to establish the true model equation for the extraction.

Subjects/Keywords: Chemistry.; Meliaceae.; Supercritical fluid extraction.; Supercritical fluid chromatography.

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APA (6^th Edition):

Modey, W. K. (1995). Supercritical fluid extraction and analysis of extracts from selected Meliaceae species. (Masters Thesis). University of KwaZulu-Natal. Retrieved from http://hdl.handle.net/10413/5032

Chicago Manual of Style (16^th Edition):

Modey, William Kojo. “Supercritical fluid extraction and analysis of extracts from selected Meliaceae species.” 1995. Masters Thesis, University of KwaZulu-Natal. Accessed October 17, 2019. http://hdl.handle.net/10413/5032.

MLA Handbook (7^th Edition):

Modey, William Kojo. “Supercritical fluid extraction and analysis of extracts from selected Meliaceae species.” 1995. Web. 17 Oct 2019.

Vancouver:

Modey WK. Supercritical fluid extraction and analysis of extracts from selected Meliaceae species. [Internet] [Masters thesis]. University of KwaZulu-Natal; 1995. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/10413/5032.

Council of Science Editors:

Modey WK. Supercritical fluid extraction and analysis of extracts from selected Meliaceae species. [Masters Thesis]. University of KwaZulu-Natal; 1995. Available from: http://hdl.handle.net/10413/5032

Seton Hall University

19. Patel, Sohita. Analytical SFE: Optimization and Applications.

Degree: PhD, Chemistry and Biochemistry, 1999, Seton Hall University

URL: http://scholarship.shu.edu/dissertations/1256

. Advisors/Committee Members: Nicholas Snow PhD, Joseph T. Maloy PhD, John R. Sowa, Jr. PhD.

Subjects/Keywords: Supercritical fluid chromatography; Supercritical fluid extraction; Chemistry

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APA (6^th Edition):

Patel, S. (1999). Analytical SFE: Optimization and Applications. (Doctoral Dissertation). Seton Hall University. Retrieved from http://scholarship.shu.edu/dissertations/1256

Chicago Manual of Style (16^th Edition):

Patel, Sohita. “Analytical SFE: Optimization and Applications.” 1999. Doctoral Dissertation, Seton Hall University. Accessed October 17, 2019. http://scholarship.shu.edu/dissertations/1256.

MLA Handbook (7^th Edition):

Patel, Sohita. “Analytical SFE: Optimization and Applications.” 1999. Web. 17 Oct 2019.

Vancouver:

Patel S. Analytical SFE: Optimization and Applications. [Internet] [Doctoral dissertation]. Seton Hall University; 1999. [cited 2019 Oct 17]. Available from: http://scholarship.shu.edu/dissertations/1256.

Council of Science Editors:

Patel S. Analytical SFE: Optimization and Applications. [Doctoral Dissertation]. Seton Hall University; 1999. Available from: http://scholarship.shu.edu/dissertations/1256

Virginia Tech

20. Yip, Shiu Hang. Supercritical Fluid Extraction and Chromatography of Various Lipids from Soybean Lecithin.

Degree: MS, Chemistry, 2007, Virginia Tech

URL: http://hdl.handle.net/10919/35349

► Phospholipids are commonly found in biological membranes. They have a polar head group and two ester linked fatty acids tails. Different methods such as thin… (more)

Subjects/Keywords: ethylpyridine phase; phospholipids; supercritical fluid extraction; supercritical fluid chromatography

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APA (6^th Edition):

Yip, S. H. (2007). Supercritical Fluid Extraction and Chromatography of Various Lipids from Soybean Lecithin. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/35349

Chicago Manual of Style (16^th Edition):

Yip, Shiu Hang. “Supercritical Fluid Extraction and Chromatography of Various Lipids from Soybean Lecithin.” 2007. Masters Thesis, Virginia Tech. Accessed October 17, 2019. http://hdl.handle.net/10919/35349.

MLA Handbook (7^th Edition):

Yip, Shiu Hang. “Supercritical Fluid Extraction and Chromatography of Various Lipids from Soybean Lecithin.” 2007. Web. 17 Oct 2019.

Vancouver:

Yip SH. Supercritical Fluid Extraction and Chromatography of Various Lipids from Soybean Lecithin. [Internet] [Masters thesis]. Virginia Tech; 2007. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/10919/35349.

Council of Science Editors:

Yip SH. Supercritical Fluid Extraction and Chromatography of Various Lipids from Soybean Lecithin. [Masters Thesis]. Virginia Tech; 2007. Available from: http://hdl.handle.net/10919/35349

21. Minty, Brian. Analysis of aqueous matrices using supercritical fluid extraction in conjunction with chromatographic spectroscopic and mass spectrometric techniques.

Degree: PhD, 2004, University of South Wales

URL: https://pure.southwales.ac.uk/en/studentthesis/analysis-of-aqueous-matrices-using-supercritical-fluid-extraction-in-conjunction-with-chromatographic-spectroscopic-and-mass-spectrometric-techniques(fc38e7eb-053c-4a5b-86a4-7726ebccea97).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409740

► The use and supply of various organic solvents for analytical chemistry is coming under scrutiny due to their environmental impact. International legislation now prevents the… (more)

Subjects/Keywords: 660.284248; Supercritical fluid chromatography; Supercritical fluid extraction

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APA (6^th Edition):

Minty, B. (2004). Analysis of aqueous matrices using supercritical fluid extraction in conjunction with chromatographic spectroscopic and mass spectrometric techniques. (Doctoral Dissertation). University of South Wales. Retrieved from https://pure.southwales.ac.uk/en/studentthesis/analysis-of-aqueous-matrices-using-supercritical-fluid-extraction-in-conjunction-with-chromatographic-spectroscopic-and-mass-spectrometric-techniques(fc38e7eb-053c-4a5b-86a4-7726ebccea97).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409740

Chicago Manual of Style (16^th Edition):

Minty, Brian. “Analysis of aqueous matrices using supercritical fluid extraction in conjunction with chromatographic spectroscopic and mass spectrometric techniques.” 2004. Doctoral Dissertation, University of South Wales. Accessed October 17, 2019. https://pure.southwales.ac.uk/en/studentthesis/analysis-of-aqueous-matrices-using-supercritical-fluid-extraction-in-conjunction-with-chromatographic-spectroscopic-and-mass-spectrometric-techniques(fc38e7eb-053c-4a5b-86a4-7726ebccea97).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409740.

MLA Handbook (7^th Edition):

Minty, Brian. “Analysis of aqueous matrices using supercritical fluid extraction in conjunction with chromatographic spectroscopic and mass spectrometric techniques.” 2004. Web. 17 Oct 2019.

Vancouver:

Minty B. Analysis of aqueous matrices using supercritical fluid extraction in conjunction with chromatographic spectroscopic and mass spectrometric techniques. [Internet] [Doctoral dissertation]. University of South Wales; 2004. [cited 2019 Oct 17]. Available from: https://pure.southwales.ac.uk/en/studentthesis/analysis-of-aqueous-matrices-using-supercritical-fluid-extraction-in-conjunction-with-chromatographic-spectroscopic-and-mass-spectrometric-techniques(fc38e7eb-053c-4a5b-86a4-7726ebccea97).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409740.

Council of Science Editors:

Minty B. Analysis of aqueous matrices using supercritical fluid extraction in conjunction with chromatographic spectroscopic and mass spectrometric techniques. [Doctoral Dissertation]. University of South Wales; 2004. Available from: https://pure.southwales.ac.uk/en/studentthesis/analysis-of-aqueous-matrices-using-supercritical-fluid-extraction-in-conjunction-with-chromatographic-spectroscopic-and-mass-spectrometric-techniques(fc38e7eb-053c-4a5b-86a4-7726ebccea97).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409740

University of Utah

22. Subramanian, Murugesan. Supercritical fluid extraction of oil sand bitumens from the Uinta Basin, Utah.

Degree: PhD, Chemical and Fuels Engineering, 1996, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3535/rec/2310

► The supercritical fluid extraction (SFE) of bitumens from the Whiterocks,Asphalt Ridge, PR Spring and Sunnyside oil sand deposits has beeninvestigated in a semicontinuous system. The… (more)

▼ The supercritical fluid extraction (SFE) of bitumens from the Whiterocks,Asphalt Ridge, PR Spring and Sunnyside oil sand deposits has beeninvestigated in a semicontinuous system. The extraction experiments wereconducted with the Asphalt Ridge and Sunnyside bitumens at five differentoperating conditions using commercial propane as the solvent. The resultsindicted that the cumulative extraction yields increased with an increase inpressure at constant temperature and decreased with increase in temperature atconstant pressure. The extraction yields increased with an increase in solventdensity.The composition of the feedstock was a major factor in controlling theextraction yields. The four bitumens from the Uinta Basin, Utah, variedsignificantly in their physical and chemical properties. The propane extractionyields were inversely proportional to the bitumen asphaltene content anddirectly proportional to the bitumen resin content. The cumulative extractionyields increased with an increase in bitumen volatility and saturates andaromatics contents for the Whiterocks, PR Spring and Sunnyside bitumens. Theasphaltenes appeared to concentrate in the residual fraction and were notextracted. Furthermore, they hindered the extraction of other solubility classes.The extracted phases were upgraded relative to the bitumens as indicated bytheir volatilities. The volatilities of the extract phases were considerably higherthan those of the bitumens. The fractionation of the residual fractions intosolubility fractions indicated that saturates and aromatics were preferentiallyextracted from the bitumen relative to the asphaltenes and resins. Thisphenomenon was confirmed by the reduction in the measured hydrogen/carbonratios of the residual fractions.The SFE of Asphalt Ridge and Sunnyside bitumen was modeled usingcontinuous thermodynamics principles and the Peng-Robinson equation ofstate. A process flow diagram was suggested to upgrade bitumens usingsupercritical fluid extraction and separation technology. Suitable operatingconditions such as pressure, temperature and solvent-to-feed ratio wereidentified for the proposed extraction and separation process concept. Themodeling successfully fit the experimental observations.A high temperature simulated distillation technique was developed alongwith a software to extend the ASTM D2887 and D5307 techniques to estimatethe boiling point distribution of heavy oils from 811 K to 973 K.

Subjects/Keywords: Supercritical fluid extraction; Uinta Basin; Bitumens

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APA (6^th Edition):

Subramanian, M. (1996). Supercritical fluid extraction of oil sand bitumens from the Uinta Basin, Utah. (Doctoral Dissertation). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3535/rec/2310

Chicago Manual of Style (16^th Edition):

Subramanian, Murugesan. “Supercritical fluid extraction of oil sand bitumens from the Uinta Basin, Utah.” 1996. Doctoral Dissertation, University of Utah. Accessed October 17, 2019. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3535/rec/2310.

MLA Handbook (7^th Edition):

Subramanian, Murugesan. “Supercritical fluid extraction of oil sand bitumens from the Uinta Basin, Utah.” 1996. Web. 17 Oct 2019.

Vancouver:

Subramanian M. Supercritical fluid extraction of oil sand bitumens from the Uinta Basin, Utah. [Internet] [Doctoral dissertation]. University of Utah; 1996. [cited 2019 Oct 17]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3535/rec/2310.

Council of Science Editors:

Subramanian M. Supercritical fluid extraction of oil sand bitumens from the Uinta Basin, Utah. [Doctoral Dissertation]. University of Utah; 1996. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/3535/rec/2310

23. Silva, Dannielle Janainne da. Remoção de Bifenilas Policloradas (PCB) contidas em material sólido contaminado empregando CO₂ supercrítico: estudo experimental e modelagem termodinâmica.

Degree: PhD, Engenharia Química, 2013, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-17102014-105947/ ;

►

Bifenilas Policloradas (PCB) são compostos orgânicos clorados altamente tóxicos e também são considerados poluentes orgânicos persistentes. Sua alta estabilidade térmica e química é responsável pela… (more)

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Bifenilas Policloradas (PCB) são compostos orgânicos clorados altamente tóxicos e também são considerados poluentes orgânicos persistentes. Sua alta estabilidade térmica e química é responsável pela sua difícil degradação, e quando estas substâncias são liberadas no meio ambiente, sua acumulação nos ecossistemas incorpora-se na cadeia alimentar, exibindo biomagnificação. Deve-se ressaltar a importância para o meio ambiente do tratamento de resíduos com PCB. Considerando que a Convenção de Estocolmo sobre poluentes orgânicos persistentes (POP) estabeleceu a eliminação do uso de PCB em equipamentos, por exemplo, transformadores e capacitores elétricos, até 2025. O objetivo deste trabalho foi estudar a remoção de PCB pelos processos de extração usando fluido supercrítico e a extração convencional (Soxhlet) no tratamento de materiais contaminados com PCB. Assim foi desenvolvida uma ferramenta computacional para correlacionar os dados de solubilidade de PCB em CO₂ supercrítico, usando a equação de estado de Peng-Robinson com parâmetros ajustados. O procedimento de cálculo foi inicialmente usado para uma série de compostos aromáticos (naftaleno, antraceno, fenantreno e bifenil), a fim de testar a abordagem. Os parâmetros binários para a regra de mistura quadrática clássica (vdW2) foram sistematicamente estimados, juntamente com um novo conjunto de dados de pressão de vapor, a fim de descrever a dependência da temperatura e alcançar incertezas experimentais. Finalmente, foram utilizados os parâmetros estimados para simular valores de solubilidade dos principais congêneres constituintes das misturas comerciais reais de PCB, como função das condições de operação de extração com uma solução simultânea das equações de equilíbrio para cada composto. A modelagem termodinâmica demonstrou ser viável para a análise de processos.

Polychlorinated Biphenyls (PCB) are chlorinated organic compounds which are highly toxic and are also considered persistent organic pollutants. The high thermal and chemical stability of PCB are responsible for their hard degradation, and when these substances are liberated in the environment, their accumulation in ecosystems leads to their incorporation in the food chain, exhibiting biomagnification. It should be emphasized the environmental importance for treating wastes with PCB. Considering that, Stockholm Convention on persistent organic pollutants (POP) established the elimination of the use of PCB in equipments, e.g. electrical transformers and capacitors, by 2025. The objective of this work was to study the removal of PCB by the processes of extractions using supercritical fluid and conventional (Soxhlet) extraction method in the treatment of contaminated materials with PCB. As well was the formulation of a computational tool to correlate solubility data of PCB in supercritical CO₂, using Peng-Robinson equation of state with fitted parameters. The calculation procedure was initially used for a series of aromatic compounds (naphthalene, anthracene, phenanthrene and biphenyl) in order to…

Advisors/Committee Members: Nascimento, Cláudio Augusto Oller do.

Subjects/Keywords: Bifenila policlorada; Extração; Extraction; Fluido supercrítico; Modelagem; Modeling; Polychlorinated Biphenyl; Supercritical fluid; Termodinâmica; Thermodynamics

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APA (6^th Edition):

Silva, D. J. d. (2013). Remoção de Bifenilas Policloradas (PCB) contidas em material sólido contaminado empregando CO₂ supercrítico: estudo experimental e modelagem termodinâmica. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/3/3137/tde-17102014-105947/ ;

Chicago Manual of Style (16^th Edition):

Silva, Dannielle Janainne da. “Remoção de Bifenilas Policloradas (PCB) contidas em material sólido contaminado empregando CO₂ supercrítico: estudo experimental e modelagem termodinâmica.” 2013. Doctoral Dissertation, University of São Paulo. Accessed October 17, 2019. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-17102014-105947/ ;.

MLA Handbook (7^th Edition):

Silva, Dannielle Janainne da. “Remoção de Bifenilas Policloradas (PCB) contidas em material sólido contaminado empregando CO₂ supercrítico: estudo experimental e modelagem termodinâmica.” 2013. Web. 17 Oct 2019.

Vancouver:

Silva DJd. Remoção de Bifenilas Policloradas (PCB) contidas em material sólido contaminado empregando CO₂ supercrítico: estudo experimental e modelagem termodinâmica. [Internet] [Doctoral dissertation]. University of São Paulo; 2013. [cited 2019 Oct 17]. Available from: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-17102014-105947/ ;.

Council of Science Editors:

Silva DJd. Remoção de Bifenilas Policloradas (PCB) contidas em material sólido contaminado empregando CO₂ supercrítico: estudo experimental e modelagem termodinâmica. [Doctoral Dissertation]. University of São Paulo; 2013. Available from: http://www.teses.usp.br/teses/disponiveis/3/3137/tde-17102014-105947/ ;

University of Alberta

24. Rezaei, Karamatollah. Developing an on-line extraction-reaction process for lipids using supercritical carbon dioxide.

Degree: PhD, Department of Agricultural, Food, and Nutritional Science, 1999, University of Alberta

URL: https://era.library.ualberta.ca/files/z316q3477

Subjects/Keywords: Lipase.; Supercritical fluid extraction.; Canola oil.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rezaei, K. (1999). Developing an on-line extraction-reaction process for lipids using supercritical carbon dioxide. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/z316q3477

Chicago Manual of Style (16^th Edition):

Rezaei, Karamatollah. “Developing an on-line extraction-reaction process for lipids using supercritical carbon dioxide.” 1999. Doctoral Dissertation, University of Alberta. Accessed October 17, 2019. https://era.library.ualberta.ca/files/z316q3477.

MLA Handbook (7^th Edition):

Rezaei, Karamatollah. “Developing an on-line extraction-reaction process for lipids using supercritical carbon dioxide.” 1999. Web. 17 Oct 2019.

Vancouver:

Rezaei K. Developing an on-line extraction-reaction process for lipids using supercritical carbon dioxide. [Internet] [Doctoral dissertation]. University of Alberta; 1999. [cited 2019 Oct 17]. Available from: https://era.library.ualberta.ca/files/z316q3477.

Council of Science Editors:

Rezaei K. Developing an on-line extraction-reaction process for lipids using supercritical carbon dioxide. [Doctoral Dissertation]. University of Alberta; 1999. Available from: https://era.library.ualberta.ca/files/z316q3477

University of Alberta

25. Sun, Li. Ethanol and supercritical fluid extraction of Echinacea angustifolia roots.

Degree: MS, Food Science And Technology, Department of Agricultural, Food, and Nutritional Science, 2001, University of Alberta

URL: https://era.library.ualberta.ca/files/05741t80p

Subjects/Keywords: Echinacea (Plants) – Roots.; Supercritical fluid extraction.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sun, L. (2001). Ethanol and supercritical fluid extraction of Echinacea angustifolia roots. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/05741t80p

Chicago Manual of Style (16^th Edition):

Sun, Li. “Ethanol and supercritical fluid extraction of Echinacea angustifolia roots.” 2001. Masters Thesis, University of Alberta. Accessed October 17, 2019. https://era.library.ualberta.ca/files/05741t80p.

MLA Handbook (7^th Edition):

Sun, Li. “Ethanol and supercritical fluid extraction of Echinacea angustifolia roots.” 2001. Web. 17 Oct 2019.

Vancouver:

Sun L. Ethanol and supercritical fluid extraction of Echinacea angustifolia roots. [Internet] [Masters thesis]. University of Alberta; 2001. [cited 2019 Oct 17]. Available from: https://era.library.ualberta.ca/files/05741t80p.

Council of Science Editors:

Sun L. Ethanol and supercritical fluid extraction of Echinacea angustifolia roots. [Masters Thesis]. University of Alberta; 2001. Available from: https://era.library.ualberta.ca/files/05741t80p

Univerzitet u Beogradu

26. Stamenić, Marko D., 1979-. Bubrenje biljnog materijala pod uticajem natkritičnog ugljenik(IV)-oksida - matematičko modelovanje i optimizacija procesa natkritične ekstrakcije.

Degree: Tehnološko-metalurški fakultet, 2014, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:7005/bdef:Content/get

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Hemijsko inženjerstvo / Chemical engineering

Tema ove doktorske disertacije je ispitivanje bubrenja biljnog materijala pod uticajem natkritičnog ugljenik(IV)-oksida, kao i efekata koje bubrenje ima na… (more)

Subjects/Keywords: swelling of plant material; supercritical fluid extraction; carbon dioxide; mathematical modelling; process optimization

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APA (6^th Edition):

Stamenić, Marko D., 1. (2014). Bubrenje biljnog materijala pod uticajem natkritičnog ugljenik(IV)-oksida - matematičko modelovanje i optimizacija procesa natkritične ekstrakcije. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:7005/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Stamenić, Marko D., 1979-. “Bubrenje biljnog materijala pod uticajem natkritičnog ugljenik(IV)-oksida - matematičko modelovanje i optimizacija procesa natkritične ekstrakcije.” 2014. Thesis, Univerzitet u Beogradu. Accessed October 17, 2019. https://fedorabg.bg.ac.rs/fedora/get/o:7005/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Stamenić, Marko D., 1979-. “Bubrenje biljnog materijala pod uticajem natkritičnog ugljenik(IV)-oksida - matematičko modelovanje i optimizacija procesa natkritične ekstrakcije.” 2014. Web. 17 Oct 2019.

Vancouver:

Stamenić, Marko D. 1. Bubrenje biljnog materijala pod uticajem natkritičnog ugljenik(IV)-oksida - matematičko modelovanje i optimizacija procesa natkritične ekstrakcije. [Internet] [Thesis]. Univerzitet u Beogradu; 2014. [cited 2019 Oct 17]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:7005/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Stamenić, Marko D. 1. Bubrenje biljnog materijala pod uticajem natkritičnog ugljenik(IV)-oksida - matematičko modelovanje i optimizacija procesa natkritične ekstrakcije. [Thesis]. Univerzitet u Beogradu; 2014. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:7005/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Clemson University

27. Raines, Jason. Factors Affecting the Production of Concentrated Blue Cheese Flavorings.

Degree: MS, Food, Nutrition, and Culinary Science, 2012, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/1436

► The effects of media type and culture selection on the aroma profile of Blue cheese flavorings produced using submerged culture fermentation were studied. Fermentations were… (more)

Subjects/Keywords: Blue cheese; flavor; methyl ketones; submerged culture fermentation; supercritical fluid extraction (SFE); Food Science

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APA (6^th Edition):

Raines, J. (2012). Factors Affecting the Production of Concentrated Blue Cheese Flavorings. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/1436

Chicago Manual of Style (16^th Edition):

Raines, Jason. “Factors Affecting the Production of Concentrated Blue Cheese Flavorings.” 2012. Masters Thesis, Clemson University. Accessed October 17, 2019. https://tigerprints.clemson.edu/all_theses/1436.

MLA Handbook (7^th Edition):

Raines, Jason. “Factors Affecting the Production of Concentrated Blue Cheese Flavorings.” 2012. Web. 17 Oct 2019.

Vancouver:

Raines J. Factors Affecting the Production of Concentrated Blue Cheese Flavorings. [Internet] [Masters thesis]. Clemson University; 2012. [cited 2019 Oct 17]. Available from: https://tigerprints.clemson.edu/all_theses/1436.

Council of Science Editors:

Raines J. Factors Affecting the Production of Concentrated Blue Cheese Flavorings. [Masters Thesis]. Clemson University; 2012. Available from: https://tigerprints.clemson.edu/all_theses/1436

Universidade Nova

28. Rodrigues, Liliana Andreia Amaro. Development of a "green process" for the isolation of natural functional extracts with anti-cancer activity - Application of high-pressure technology.

Degree: 2014, Universidade Nova

URL: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/12207

►

Dissertação para obtenção do Grau de Mestre em Engenharia Química e Bioquímica

The knowledge of the healing power of some species of plants is ancient.… (more)

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Dissertação para obtenção do Grau de Mestre em Engenharia Química e Bioquímica

The knowledge of the healing power of some species of plants is ancient. Nowadays, the preference for natural products has increased, and with it, the interest in recover and isolate bioactive phytochemicals with potential health benefits. The main goal of this thesis was to isolate anticancer bioactive compounds, namely terpenes and fatty acids, from Portuguese Lavandula (L. angustifolia and L. stoechas) and Mentha species (M. spicata, M. piperita var. citrata and M. pulegium), using supercritical fluid extraction (SFE). All extractions were performed at 50ºC and 250 bar in a two step methodology: a first step with supercritical CO2, during 60 minutes, followed by a second step, with a mixture of CO2 and ethanol (90:10 %v/v), for 180 minutes. Different fractions of the extracts were recovered every 30 minutes, and the resulting samples were characterized in terms of global yield (% g/g), screened for the presence of terpenes, by thin layer chromatography (TLC) and analyzed by gas chromatography coupled with mass spectrometry detection (GC-MS). Furthermore, ORAC, HORAC and HOSC assays were conducted for the determination of antioxidant activity. Cell-based assays in human HT-29 colorectal adenocarcinoma cells were also performed, in order to determine the potential of the extracts as cancer cell-growth inhibitors. The fractions of the extract of M. piperita var. citrata presented the highest antioxidant activity, whereas the fractions of L. angustifolia, L. stoechas and M. spicata extracts revealed to be the most promising colorectal cancer cell-growth inhibitors. The bioactive responses were correlated with the phytochemical composition of the extracts, and the main compounds, such as camphor, fenchone, carvone, linoleic acid, among others, were highlighted. However, it is possible that the bioactivities were due to synergistic effects between several compounds. Results of this thesis demonstrated that SFE is a reliable tool to extract anticancer bioactive components from some Lavandula and Mentha plants.

Advisors/Committee Members: Duarte, Catarina, Serra, Ana.

Subjects/Keywords: Supercritical fluid extraction; Lavandula spp; Mentha spp; Terpenes; Antiproliferative activity; Colorectal cancer

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APA (6^th Edition):

Rodrigues, L. A. A. (2014). Development of a "green process" for the isolation of natural functional extracts with anti-cancer activity - Application of high-pressure technology. (Thesis). Universidade Nova. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/12207

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rodrigues, Liliana Andreia Amaro. “Development of a "green process" for the isolation of natural functional extracts with anti-cancer activity - Application of high-pressure technology.” 2014. Thesis, Universidade Nova. Accessed October 17, 2019. http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/12207.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rodrigues, Liliana Andreia Amaro. “Development of a "green process" for the isolation of natural functional extracts with anti-cancer activity - Application of high-pressure technology.” 2014. Web. 17 Oct 2019.

Vancouver:

Rodrigues LAA. Development of a "green process" for the isolation of natural functional extracts with anti-cancer activity - Application of high-pressure technology. [Internet] [Thesis]. Universidade Nova; 2014. [cited 2019 Oct 17]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/12207.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rodrigues LAA. Development of a "green process" for the isolation of natural functional extracts with anti-cancer activity - Application of high-pressure technology. [Thesis]. Universidade Nova; 2014. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/12207

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

29. Lombard, James Edward. Thermodynamic modelling of hydrocarbon-chains and light-weight supercritical solvents.

Degree: MEng, Process Engineering, 2015, Stellenbosch University

URL: http://hdl.handle.net/10019.1/96844

► ENGLISH ABSTRACT: Long-chain hydrocarbons are of value to numerous lucrative industries. Due to the low volatility and close melting and boiling points of these solutes,… (more)

▼ ENGLISH ABSTRACT: Long-chain hydrocarbons are of value to numerous lucrative industries. Due to the low volatility and close melting and boiling points of these solutes, traditional fractionation methods lack the required selectivity for separation and cause thermal degradation of the product. This project investigates the feasibility of Supercritical Fluid Extraction (SFE) for processing these systems, with the primary objective of modelling the high-pressure vapour-liquid equilibrium (VLE) properties of hydrocarbon solutes with a light-weight solvent using a semiempirical equation of state (EOS). Pure component vapour pressures and saturated liquid volumes are also investigated. A thorough investigation into the phase behaviour of the n-alkanes, 1-alcohols, carboxylic acids and esters in light weight supercritical solvents CO2, ethane and propane revealed that the solute structure and temperature largely influence the solute solubility and process feasibility. Good selectivity amongst the various solutes was observed for all three solvents, but very high pressures were required for complete miscibility using CO2 (exceeding 30 MPa). The quadrapole moment of CO2 further leads to complexities in phase behaviour such as temperature and density inversions (CO2/alkanes and CO2/alcohols) and 3-phase regions within the operating range. Simple linear trends in pressure vs. carbon number and temperature were observed for all the considered series using ethane and propane and these solvents were thus selected for conducting the modelling for this study. A thorough review of semi-emperical EOS models from literature revealed that the simple cubic equations of state (CEOSs) provide a promising modelling approach for SFE applications due to their simplicity, flexibility and reliability. The simple Peng-Robinson (PR) and Soave-Redlich-Kwong (SRK) EOSs provide good correlation of vapour pressure (%AAD below 5 %) for all the series over a large carbon number range (up to nC20), provided a two parameter alpha function is used. A 3rd parameter in the volume dependence for Patel-Teja (PT) EOS provides considerable improvement over the PR and SRK EOSs for satureate liquid volume correlations of the non-polar solutes (alkanes and esters), but offers virtually no advantage for the more polar alcohols and acids. The CEOSs therefore suffer clear limitations in simultaneous representation of these saturation properties (vapour pressure and liquid molar volume) for the systems of interest. Good correlations of high pressure binary VLE data were obtained using CEOSs available in the Aspen Plus ® simulator (% AAD in P, T and X2 generally below 1 % and ranging from 4 to 12 % for Y2 for all series) provided that two binary interaction parameters (BIPs) are used in the model mixing rules, irrespective of the model used. Aspen Plus ® was further validated as a reliable thermodynamic tool by comparing model fits using the RK-ASPEN model with parameters obtained from the Aspen Plus ® data regression routine and… Advisors/Committee Members: Knoetze, J. H., Schwarz, Cara E., Stellenbosch University. Faculty of Engineering. Dept. of Process Engineering..

Subjects/Keywords: Supercritical fluid extraction; Vapour-liquid equilibrium (VLE) – Modelling; Equation of state (EOS); UCTD

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APA (6^th Edition):

Lombard, J. E. (2015). Thermodynamic modelling of hydrocarbon-chains and light-weight supercritical solvents. (Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/96844

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lombard, James Edward. “Thermodynamic modelling of hydrocarbon-chains and light-weight supercritical solvents.” 2015. Thesis, Stellenbosch University. Accessed October 17, 2019. http://hdl.handle.net/10019.1/96844.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lombard, James Edward. “Thermodynamic modelling of hydrocarbon-chains and light-weight supercritical solvents.” 2015. Web. 17 Oct 2019.

Vancouver:

Lombard JE. Thermodynamic modelling of hydrocarbon-chains and light-weight supercritical solvents. [Internet] [Thesis]. Stellenbosch University; 2015. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/10019.1/96844.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lombard JE. Thermodynamic modelling of hydrocarbon-chains and light-weight supercritical solvents. [Thesis]. Stellenbosch University; 2015. Available from: http://hdl.handle.net/10019.1/96844

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oklahoma State University

30. Eisenmenger, Michael Joseph. Supercritical Fluid Extraction, Fractionation, and Characterization of Wheat Germ Oil.

Degree: Department of Animal Science, 2005, Oklahoma State University

URL: http://hdl.handle.net/11244/8438

► The purpose of this study was to examine the ability of supercritical fluid technology to extract and fractionate wheat germ oil. Supercritical carbon dioxide extraction… (more)

Subjects/Keywords: supercritical fluid extraction fractionation wheat germ

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Eisenmenger, M. J. (2005). Supercritical Fluid Extraction, Fractionation, and Characterization of Wheat Germ Oil. (Thesis). Oklahoma State University. Retrieved from http://hdl.handle.net/11244/8438

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Eisenmenger, Michael Joseph. “Supercritical Fluid Extraction, Fractionation, and Characterization of Wheat Germ Oil.” 2005. Thesis, Oklahoma State University. Accessed October 17, 2019. http://hdl.handle.net/11244/8438.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Eisenmenger, Michael Joseph. “Supercritical Fluid Extraction, Fractionation, and Characterization of Wheat Germ Oil.” 2005. Web. 17 Oct 2019.

Vancouver:

Eisenmenger MJ. Supercritical Fluid Extraction, Fractionation, and Characterization of Wheat Germ Oil. [Internet] [Thesis]. Oklahoma State University; 2005. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/11244/8438.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Eisenmenger MJ. Supercritical Fluid Extraction, Fractionation, and Characterization of Wheat Germ Oil. [Thesis]. Oklahoma State University; 2005. Available from: http://hdl.handle.net/11244/8438

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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