subject:(Oleic acid)

Oregon State University

1. Schuppert, Gunnar Felix. Molecular mechanisms underlying the high oleic acid phenotype in sunflower.

Degree: PhD, Crop Science, 2004, Oregon State University

URL: http://hdl.handle.net/1957/28945

Subjects/Keywords: Oleic acid

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APA (6^th Edition):

Schuppert, G. F. (2004). Molecular mechanisms underlying the high oleic acid phenotype in sunflower. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/28945

Chicago Manual of Style (16^th Edition):

Schuppert, Gunnar Felix. “Molecular mechanisms underlying the high oleic acid phenotype in sunflower.” 2004. Doctoral Dissertation, Oregon State University. Accessed March 09, 2021. http://hdl.handle.net/1957/28945.

MLA Handbook (7^th Edition):

Schuppert, Gunnar Felix. “Molecular mechanisms underlying the high oleic acid phenotype in sunflower.” 2004. Web. 09 Mar 2021.

Vancouver:

Schuppert GF. Molecular mechanisms underlying the high oleic acid phenotype in sunflower. [Internet] [Doctoral dissertation]. Oregon State University; 2004. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/1957/28945.

Council of Science Editors:

Schuppert GF. Molecular mechanisms underlying the high oleic acid phenotype in sunflower. [Doctoral Dissertation]. Oregon State University; 2004. Available from: http://hdl.handle.net/1957/28945

Texas A&M University

2. Ghahramany, Ghazal. High-Oleic Ground Beef and Risk Factors for Cardiovascular Disease in Men and Postmenopausal Women.

Degree: PhD, Nutrition, 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-10733

► About half of all deaths in developed countries are caused by cardiovascular disease. It is well known that cardiovascular disease (CVD) risk can be influenced… (more)

▼ About half of all deaths in developed countries are caused by cardiovascular disease. It is well known that cardiovascular disease (CVD) risk can be influenced by diet, but optimal dietary content of fatty acids continues to be debated. The effect of fatty acid composition of ground beef on selected cardiovascular disease risk indicators was evaluated with two primary goals. The first goal was to document effects of ground beef fatty acid composition on plasma lipoprotein concentrations, whereas the second goal was to determine the effects of ground beef fatty acid composition on gene expression in peripheral blood mononuclear cells (PBMC). In both studies the results were compared between men and women. Twelve men and women over age of 45 out of initially 15 completed a two-way crossover design. Subjects consumed five, 114-g ground beef patties per week for 5-wk periods separated by a 3-wk washout period. Patties contained on average 20% fat and monounsaturated fatty acid (MUFA): saturated fatty acid (SFA) of 0.8 and 1.1 for low- MUFA (conventional) ground beef high-MUFA (premium) ground beef patties, respectively. Blood was collected from each subject before and at the end of each diet period. Overall, the ground beef interventions decreased total plasma cholesterol, triacylglycerol, and very low density lipoprotein (VLDL) cholesterol. Plasma concentrations of high density lipoprotein (HDL) cholesterol and low density lipoprotein (LDL) cholesterol decreased and increased, respectively with premium ground beef consumption. The change in HDL cholesterol was significant in women but not in men suggesting that premium ground beef consumption had a greater impact on women than in men. For the second goal PBMC were isolated and the expression of selected genes was quantified by real-time PCR. ATP-binding cassette A1, ATP-binding cassette G1, and low-density lipoprotein receptor relative expression was increased with premium ground beef consumption. A significant increase was seen in stearoyl-Coenzyme-A desaturase 1 expression after premium ground beef treatment. With the exception of stearoyl-Coenzyme-A desaturase 1, all these genes were down-regulated with conventional ground beef consumption. Both sterol regulatory element binding transcription factor 1 and mediator complex subunit 1 were down-regulated after each beef patty treatment, but the effect was significant after consuming conventional ground beef. This suggests that genes involved in cholesterol metabolism were down-regulated with conventional ground beef consumption; whereas genes related to lipogenesis were up-regulated with premium ground beef consumption. From these data we concluded that different ground beef dietary interventions have different impacts on the PBMC gene expression that is related to cholesterol metabolism, inflammation and liver X receptor pathways. Advisors/Committee Members: Smith, Stephen B. (advisor), Riechman, Steven E. (committee member), Villalobos, Alice (committee member), Wu, Chaodong (committee member).

Subjects/Keywords: cardiovascular disease; Oleic acid; MUFA

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APA (6^th Edition):

Ghahramany, G. (2012). High-Oleic Ground Beef and Risk Factors for Cardiovascular Disease in Men and Postmenopausal Women. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-10733

Chicago Manual of Style (16^th Edition):

Ghahramany, Ghazal. “High-Oleic Ground Beef and Risk Factors for Cardiovascular Disease in Men and Postmenopausal Women.” 2012. Doctoral Dissertation, Texas A&M University. Accessed March 09, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-10733.

MLA Handbook (7^th Edition):

Ghahramany, Ghazal. “High-Oleic Ground Beef and Risk Factors for Cardiovascular Disease in Men and Postmenopausal Women.” 2012. Web. 09 Mar 2021.

Vancouver:

Ghahramany G. High-Oleic Ground Beef and Risk Factors for Cardiovascular Disease in Men and Postmenopausal Women. [Internet] [Doctoral dissertation]. Texas A&M University; 2012. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-10733.

Council of Science Editors:

Ghahramany G. High-Oleic Ground Beef and Risk Factors for Cardiovascular Disease in Men and Postmenopausal Women. [Doctoral Dissertation]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2012-05-10733

University of Ottawa

3. Roberge, Stéphane. Conjugated Linoleic Acid/Styrene/Butyl Acrylate Bulk and Emulsion Polymerization .

Degree: 2016, University of Ottawa

URL: http://hdl.handle.net/10393/34536

► The potential for conjugated linoleic acid (CLA) incorporation into pressure-sensitive adhesive (PSA) formulations was evaluated. A series of free radical bulk copolymerizations of CLA/styrene (Sty)… (more)

▼ The potential for conjugated linoleic acid (CLA) incorporation into pressure-sensitive adhesive (PSA) formulations was evaluated. A series of free radical bulk copolymerizations of CLA/styrene (Sty) and CLA/butyl acrylate (BA) were designed to allow the estimation of reactivity ratios. Bulk terpolymerizations of CLA/Sty/BA were also evaluated before moving to emulsion terpolymerizations of CLA/Sty/BA. The polymers were characterized for composition, conversion, molecular weight and glass transition temperature while latexes were characterized for viscosity, particle size, tack, peel strength, and shear strength. All experiments were performed at 80 °C and monitored with attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. While bulk experiments were monitored off-line, the emulsion experiments were monitored in-line. Absorbance peaks related to the monomers and polymer were tracked to provide conversion and polymer composition data using a multivariate calibration method. Off-line measurements using gravimetry and 1H-NMR spectroscopy were compared to the ATR-FTIR data and no significant differences were detected between the measurement methods. Pseudo-kinetic models, developed and validated with the copolymer experimental data, were used to estimate reactivity ratios. The copolymer pseudo-kinetic models were extended to a terpolymer pseudo-kinetic model and validated with experimental data. The pseudo-kinetic models incorporated the ability of oleic acid, a common impurity found in CLA, to trap electrons thus influencing the reaction kinetics significantly. The influence of terpolymer composition, chain transfer agent concentration, cross-linker concentration, molecular weight, viscosity and particle size on tack, peel strength and shear strength was investigated by using a constrained mixture design. The final forms of the resulting empirical models allowed the creation of 3D response surfaces for PSA performance optimization. The incorporation of 30 wt.% CLA into a practical PSA application suitable for the removable adhesives category was achieved.

Subjects/Keywords: linoleic acid; oleic acid; pressure-sensitive adhesives

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APA (6^th Edition):

Roberge, S. (2016). Conjugated Linoleic Acid/Styrene/Butyl Acrylate Bulk and Emulsion Polymerization . (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/34536

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):

Roberge, Stéphane. “Conjugated Linoleic Acid/Styrene/Butyl Acrylate Bulk and Emulsion Polymerization .” 2016. Thesis, University of Ottawa. Accessed March 09, 2021. http://hdl.handle.net/10393/34536.

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

MLA Handbook (7^th Edition):

Roberge, Stéphane. “Conjugated Linoleic Acid/Styrene/Butyl Acrylate Bulk and Emulsion Polymerization .” 2016. Web. 09 Mar 2021.

Vancouver:

Roberge S. Conjugated Linoleic Acid/Styrene/Butyl Acrylate Bulk and Emulsion Polymerization . [Internet] [Thesis]. University of Ottawa; 2016. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/10393/34536.

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

Council of Science Editors:

Roberge S. Conjugated Linoleic Acid/Styrene/Butyl Acrylate Bulk and Emulsion Polymerization . [Thesis]. University of Ottawa; 2016. Available from: http://hdl.handle.net/10393/34536

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

University of Alberta

4. Ruby, Kelsi. Feeding high oleic acid Canola oil or olive oil alters inflammation, insulin resistance and lipid metabolism in a rodent model of diet induced obesity.

Degree: MS, Department of Agricultural, Food, and Nutritional Science, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/8s45q923r

► To determine the efficacy of feeding monounsaturated fatty acids (MUFA) via a high MUFA Canola oil on T2D risk factors diet induced obese rats were… (more)

Subjects/Keywords: diabetes; lipid metabolism; inflammation; oleic acid; obesity

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APA (6^th Edition):

Ruby, K. (2011). Feeding high oleic acid Canola oil or olive oil alters inflammation, insulin resistance and lipid metabolism in a rodent model of diet induced obesity. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/8s45q923r

Chicago Manual of Style (16^th Edition):

Ruby, Kelsi. “Feeding high oleic acid Canola oil or olive oil alters inflammation, insulin resistance and lipid metabolism in a rodent model of diet induced obesity.” 2011. Masters Thesis, University of Alberta. Accessed March 09, 2021. https://era.library.ualberta.ca/files/8s45q923r.

MLA Handbook (7^th Edition):

Ruby, Kelsi. “Feeding high oleic acid Canola oil or olive oil alters inflammation, insulin resistance and lipid metabolism in a rodent model of diet induced obesity.” 2011. Web. 09 Mar 2021.

Vancouver:

Ruby K. Feeding high oleic acid Canola oil or olive oil alters inflammation, insulin resistance and lipid metabolism in a rodent model of diet induced obesity. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Mar 09]. Available from: https://era.library.ualberta.ca/files/8s45q923r.

Council of Science Editors:

Ruby K. Feeding high oleic acid Canola oil or olive oil alters inflammation, insulin resistance and lipid metabolism in a rodent model of diet induced obesity. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/8s45q923r

Technical University of Lisbon

5. Solipa, Sara Cristina dos Santos. Desenvolvimento e caracterização de películas compósitas de quitosano, lipidos e tripolifosfato.

Degree: 2015, Technical University of Lisbon

URL: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/10931

►

Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia

In this work the effect of a lipid and a crosslinking agent, sodium tripolyphosphate (TPP) on… (more)

Subjects/Keywords: chitosan; edible films; beeswax; oleic acid; tripolyphosphate

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APA (6^th Edition):

Solipa, S. C. d. S. (2015). Desenvolvimento e caracterização de películas compósitas de quitosano, lipidos e tripolifosfato. (Thesis). Technical University of Lisbon. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/10931

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):

Solipa, Sara Cristina dos Santos. “Desenvolvimento e caracterização de películas compósitas de quitosano, lipidos e tripolifosfato.” 2015. Thesis, Technical University of Lisbon. Accessed March 09, 2021. https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/10931.

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

MLA Handbook (7^th Edition):

Solipa, Sara Cristina dos Santos. “Desenvolvimento e caracterização de películas compósitas de quitosano, lipidos e tripolifosfato.” 2015. Web. 09 Mar 2021.

Vancouver:

Solipa SCdS. Desenvolvimento e caracterização de películas compósitas de quitosano, lipidos e tripolifosfato. [Internet] [Thesis]. Technical University of Lisbon; 2015. [cited 2021 Mar 09]. Available from: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/10931.

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

Council of Science Editors:

Solipa SCdS. Desenvolvimento e caracterização de películas compósitas de quitosano, lipidos e tripolifosfato. [Thesis]. Technical University of Lisbon; 2015. Available from: https://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/10931

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

University of Manitoba

6. Sihag, Jyoti. The action of oleic acid, oleoylethanolamide and allied genetic variants in influencing body composition.

Degree: Food and Human Nutritional Sciences, 2019, University of Manitoba

URL: http://hdl.handle.net/1993/34346

► N-acylethanolamines (NAEs) are lipid-derived signalling mediators synthesized from fatty acids (FA) that regulate numerous pathophysiological functions. Pharmacological research has explored the area of NAEs, while… (more)

▼ N-acylethanolamines (NAEs) are lipid-derived signalling mediators synthesized from fatty acids (FA) that regulate numerous pathophysiological functions. Pharmacological research has explored the area of NAEs, while only limited nutritional studies have been conducted to understand the role of diet FA composition on NAE levels and the actions of NAEs, especially, oleoylethanolamide (OEA) on food intake-energy expenditure (EE) regulation and body composition (BC). The objective of this research was, therefore, to investigate plasma and tissue/organ NAE concentrations in hamsters in response to consumption of various dietary oils with different FA composition to understand the actions on EE and BC. A further objective was to characterize the effect of diets varying in monounsaturated fatty acid (MUFA) composition on plasma NAE concentrations and BC variables in humans. A human clinical trial using a cross-over design and energy-controlled paradigm was performed to elucidate the role of diet × genetic polymorphism interactions on NAEs and their influence on BC parameters. Results from both animal and human trials reveal that dietary FA composition influenced both plasma and tissue FA and NAE levels, with marked increases observed in plasma C18:1n9 and corresponding OEA levels after C18:1n9-enriched treatments. Animal data showed significant shifts in intestinal-brain OEA concentrations post-consumption of C18:1n9-enriched diets. A negative correlation was observed between gut-brain OEA concentrations and body weight. No differences were observed across olive oil, high oleic canola oil (HOCO), and HOCO diets with omega-3 FA blends in terms of EE and overall BC. The human trial data demonstrated an inverse relationship between the intake of C18:1n9 and alterations in body weight as a function of LEPR rs1137101-AA vs -GG polymorphism. The diet-genotype pattern interactions also showed elevated concentrations of plasma OEA in participants possessing the GRP40 rs1573611-T allele post-consumption of high-MUFA, but not low-MUFA diets. The findings demonstrate that plasma OEA concentrations reflect the dietary pattern of C18:1n9 intake and may be influenced by GRP40 rs1573611 polymorphism. Humans possessing GPR40 rs1573611-T and LEPR rs1137101-AA polymorphisms could benefit more from ingestion of C18:1n9-enriched dietary oils. Henceforth, we summarize that the endogenously synthesized increased OEA levels in the tissues enable the gut-brain-interrelationship. It can be speculated that the brain transmits anorexic properties mediated via neuronal signalling influenced by genetic variations; which may contribute to the maintenance of healthy body weight, consequently affecting the overall BC and wellness. Thus, the benefits of OEA can be enhanced by the inclusion of C18:1n9-enriched diets, pointing to the possible nutritional use of this naturally occurring bioactive lipid-amide in the management of obesity. Advisors/Committee Members: House, James D. (Food and Human Nutritional Sciences) (supervisor), Suh, Miyoung (Food and Human Nutritional Sciences) (examiningcommittee), Choy, Patrick (Biochemistry and Medical Genetics) (examiningcommittee), Field, Catherine (University of Alberta) (examiningcommittee).

Subjects/Keywords: Obesity; Endocannabinoid; Oleic acid; Oleoylethanolamide; Satiety

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APA (6^th Edition):

Sihag, J. (2019). The action of oleic acid, oleoylethanolamide and allied genetic variants in influencing body composition. (Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/34346

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):

Sihag, Jyoti. “The action of oleic acid, oleoylethanolamide and allied genetic variants in influencing body composition.” 2019. Thesis, University of Manitoba. Accessed March 09, 2021. http://hdl.handle.net/1993/34346.

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

MLA Handbook (7^th Edition):

Sihag, Jyoti. “The action of oleic acid, oleoylethanolamide and allied genetic variants in influencing body composition.” 2019. Web. 09 Mar 2021.

Vancouver:

Sihag J. The action of oleic acid, oleoylethanolamide and allied genetic variants in influencing body composition. [Internet] [Thesis]. University of Manitoba; 2019. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/1993/34346.

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

Council of Science Editors:

Sihag J. The action of oleic acid, oleoylethanolamide and allied genetic variants in influencing body composition. [Thesis]. University of Manitoba; 2019. Available from: http://hdl.handle.net/1993/34346

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

University of Tennessee – Knoxville

7. Willette, Alison Rose. Breeding for improved oil quality in high yielding soybean lines using molecular markers for selecting FAD2-1A, FAD2-1B, FAD3A and FAD3C mutant alleles to produce a high oleic, low linolenic (HOLL) soybean.

Degree: MS, Plant Sciences, 2018, University of Tennessee – Knoxville

URL: https://trace.tennessee.edu/utk_gradthes/5120

► Soybean oil is a major commodity in the US with practical uses for both food and industrial products. A declining market for soybean oil production… (more)

▼ Soybean oil is a major commodity in the US with practical uses for both food and industrial products. A declining market for soybean oil production caused by added restrictions on oil hydrogenation practices, has fueled improvements in oil industry standards. Typical soybean oil contains 8 to 12 g kg^-1 of linolenic acid which causes unfavorable odor and rapid rancidity which has been dealt with using hydrogenation in the past. Scientists have identified fatty acid desaturase genes which when mutated, produce oil that does not require hydrogenation. Breeders use single nucleotide polymorphism (SNP) analysis to select for soybean mutations containing FAD2-1A, FAD2-1B, FAD3A, and FAD3C that regulate oleic acid (18:1) and linolenic acid (18:3) respectively. Improved oil quality standards set by the United Soybean Board, necessitate an increase in oleic acid (18:1) to greater than 75 g kg^-1 concentration, and a decrease in linolenic acid to less than 3 g kg^-1 in soybean oil. In 2016 we performed a multi-location yield study comparing four low linolenic (LL) soybean lines with parents, and high yielding checks in a randomized complete block design (RBD) at two locations. We found that no significant yield drag was associated with low linolenic genotypic lines. In 2017 multi-location studies, testing twelve soybean lines, were tested across eight Tennessee environments. The two studies investigated the effect of planting date, and irrigation on agronomic and seed quality traits of LL lines. A third yield trial was done comparing four lines of double mutant FAD2-1A and FAD2-1B that varied at the FAD3A and FAD3C genes, which was investigated at two Tennessee locations. There was a statistically significant decrease in linolenic acid when tested at α [alpha]=0.05 when both FAD3A and FAD3C mutant alleles are present in soybean lines tested in both 2016 and 2017. The yield of double mutant LL lines were not significantly different when compared to single mutant or double wild-type. Quadruple mutant HOLL lines did not have any yield drag association when compared to both parents and check lines. Advisors/Committee Members: Vincent R. Pantalone, Hem Singh Bhandari, Feng Chen, Carl E. Sams, Virginia R. Sykes.

Subjects/Keywords: Oleic acid; linolenic acid; soybean; FAD3; FAD2-1; vegetable oil

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APA (6^th Edition):

Willette, A. R. (2018). Breeding for improved oil quality in high yielding soybean lines using molecular markers for selecting FAD2-1A, FAD2-1B, FAD3A and FAD3C mutant alleles to produce a high oleic, low linolenic (HOLL) soybean. (Thesis). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_gradthes/5120

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):

Willette, Alison Rose. “Breeding for improved oil quality in high yielding soybean lines using molecular markers for selecting FAD2-1A, FAD2-1B, FAD3A and FAD3C mutant alleles to produce a high oleic, low linolenic (HOLL) soybean.” 2018. Thesis, University of Tennessee – Knoxville. Accessed March 09, 2021. https://trace.tennessee.edu/utk_gradthes/5120.

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

MLA Handbook (7^th Edition):

Willette, Alison Rose. “Breeding for improved oil quality in high yielding soybean lines using molecular markers for selecting FAD2-1A, FAD2-1B, FAD3A and FAD3C mutant alleles to produce a high oleic, low linolenic (HOLL) soybean.” 2018. Web. 09 Mar 2021.

Vancouver:

Willette AR. Breeding for improved oil quality in high yielding soybean lines using molecular markers for selecting FAD2-1A, FAD2-1B, FAD3A and FAD3C mutant alleles to produce a high oleic, low linolenic (HOLL) soybean. [Internet] [Thesis]. University of Tennessee – Knoxville; 2018. [cited 2021 Mar 09]. Available from: https://trace.tennessee.edu/utk_gradthes/5120.

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

Council of Science Editors:

Willette AR. Breeding for improved oil quality in high yielding soybean lines using molecular markers for selecting FAD2-1A, FAD2-1B, FAD3A and FAD3C mutant alleles to produce a high oleic, low linolenic (HOLL) soybean. [Thesis]. University of Tennessee – Knoxville; 2018. Available from: https://trace.tennessee.edu/utk_gradthes/5120

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

8. Oliveira, Claudimar de Jesus. Avaliação comparativa do efeito dos ácidos graxos oléico, palmítico e esteárico sobre biomarcadores do processo aterosclerótico.

Degree: PhD, Nutrição Experimental, 2013, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/9/9132/tde-05072013-163652/ ;

► A aterosclerose é classificada como enfermidade crônica não transmissível e é considerada uma das principais causas de morte e morbidade em vários países, incluindo o… (more)

▼ A aterosclerose é classificada como enfermidade crônica não transmissível e é considerada uma das principais causas de morte e morbidade em vários países, incluindo o Brasil. Entre as possíveis causas de sua gênese está o hábito alimentar, especificamente o consumo de ácidos graxos, principalmente saturados e trans. Ácidos graxos saturados possuem características biológicas e fisico-químicas diferentes dos insaturados. Os mais abundantes na dieta humana são o palmítico e esteárico. Sua associação com acometimentos cardiovasculares vem sendo cada vez mais investigada, principalmente os que possuem mais de dez carbonos em sua cadeia interferindo no metabolismo de lipoproteínas podendo desencadear todo o processo aterosclerótico. A indústria de alimentos vem desenvolvendo algumas tecnologias opcionais para reduzir ou eliminar ácidos graxos trans, em especial, o elaídico, dentre elas a modificação no processo de hidrogenação que aumenta a quantidade de ácidos graxos saturados. Alguns alimentos industrializados necessitam de uma grande quantidade de ácidos graxos saturados promovendo um aumento no teor de ácido palmítico e esteárico, sendo este último considerado um ácido graxo saturado neutro, mas dependendo da concentração utilizada, pode contribuir no decréscimo da HDL-c (High Density Lipoprotein), dentre outras alterações deletérias. Desta forma, investigar as alterações de determinados parâmetros biológicos diante da mudança da proporção de ácidos graxos saturados, respeitando o teor total de lipídios de uma dieta é a base deste estudo. Foram realizados ensaios em material biológico para a determinação dos seguintes parâmetros: 1) Atividade de enzimas antioxidantes; 2) Peroxidação lipídica em tecidos; 3) Lipidograma; 4) Determinação do perfil de ácidos graxos de tecidos e rações e 5) Expressão de genes relacionados com o processo aterosclerótico (ICAM-1, VCAM-1, CD36 e MCP-1). A determinação da atividade de enzimas antioxidantes foi realizada considerando somente as enzimas Catalase (CAT) e Superóxido Dismutase (SOD), por se tratarem de enzimas com alteração expressiva no processo aterogênico, na ocorrência de disfunção endotelial. Neste trabalho, foi analisada a atividade das referidas enzimas no tecido hepático e cardíaco, onde não foram constatadas alterações. O mesmo processo biológico que estimula a produção excessiva de espécies reativas pode levar ao aumento da peroxidação lipídica, principalmente de ácidos graxos polinsaturados das membranas celulares, em tecidos como fígado, cérebro e coração. A peroxidação lipídica apresentou diferenças significativas no tecido hepático. O grupo alimentado com ração enriquecida com tripalmitato apresentou peroxidação lipídica aumentada em relação ao grupo controle. Correlacionando com o perfil de ácidos graxos do tecido hepático, notamos que houve maior incorporação de ácido palmítico nesse tecido, que por apresentar configuração linear, quando incorporado à membrana celular, pode levar à disfunção e possível suscetibilidade a danos, como a peroxidação. No tecido cardíaco e… Advisors/Committee Members: Mancini Filho, Jorge.

Subjects/Keywords: Ácido esteárico; Ácido oleico; Ácido palmítico; Aterosclerose; Atherosclerosis; Oleic acid; Palmitic acid; Stearic acid

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APA (6^th Edition):

Oliveira, C. d. J. (2013). Avaliação comparativa do efeito dos ácidos graxos oléico, palmítico e esteárico sobre biomarcadores do processo aterosclerótico. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/9/9132/tde-05072013-163652/ ;

Chicago Manual of Style (16^th Edition):

Oliveira, Claudimar de Jesus. “Avaliação comparativa do efeito dos ácidos graxos oléico, palmítico e esteárico sobre biomarcadores do processo aterosclerótico.” 2013. Doctoral Dissertation, University of São Paulo. Accessed March 09, 2021. http://www.teses.usp.br/teses/disponiveis/9/9132/tde-05072013-163652/ ;.

MLA Handbook (7^th Edition):

Oliveira, Claudimar de Jesus. “Avaliação comparativa do efeito dos ácidos graxos oléico, palmítico e esteárico sobre biomarcadores do processo aterosclerótico.” 2013. Web. 09 Mar 2021.

Vancouver:

Oliveira CdJ. Avaliação comparativa do efeito dos ácidos graxos oléico, palmítico e esteárico sobre biomarcadores do processo aterosclerótico. [Internet] [Doctoral dissertation]. University of São Paulo; 2013. [cited 2021 Mar 09]. Available from: http://www.teses.usp.br/teses/disponiveis/9/9132/tde-05072013-163652/ ;.

Council of Science Editors:

Oliveira CdJ. Avaliação comparativa do efeito dos ácidos graxos oléico, palmítico e esteárico sobre biomarcadores do processo aterosclerótico. [Doctoral Dissertation]. University of São Paulo; 2013. Available from: http://www.teses.usp.br/teses/disponiveis/9/9132/tde-05072013-163652/ ;

9. Silva, Alexandre Eduardo de Souza da. Identificação e quantificação via técnicas cromatográficas de ácidos graxos com potencial farmacológico em frutos amazônicos.

Degree: Mestrado, Tecnologia Nuclear - Materiais, 2012, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/85/85134/tde-16012013-145227/ ;

►

A região amazônica apresenta grande quantidade de plantas perenes, com particular relevância para as espécies frutíferas. Os frutos amazônicos são conhecidos pelo seu grande potencial… (more)

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A região amazônica apresenta grande quantidade de plantas perenes, com particular relevância para as espécies frutíferas. Os frutos amazônicos são conhecidos pelo seu grande potencial energético e são usados como fonte de alimento nas grandes regiões do país. Dentre esses frutos, destaca-se o açaí, fruto do açaizeiro (Euterpe oleracea Martius), a copaíba (Copaifera officinalis L.) e a castanha do Pará (Bertholletia excelsa). Esses frutos são importantes para o desenvolvimento agroindustrial da região amazônica. Os mesmos contêm na sua composição proteínas, fibras e ácidos graxos. Os frutos possuem ácidos graxos são usados na área farmacêutica, com finalidade clínica e dermatológica. O projeto tem como objetivo apresentar técnicas analíticas de caracterização e quantificação dos ácidos graxos presente na composição oleosa dos frutos e descrever a ação farmacológica. Esses ácidos são o oléico, linoleico e palmítico. As técnicas analíticas com características de quantificação deverão gerar informações confiáveis e interpretáveis sobre a amostra, sendo o critério de avaliação denominado validação. A validação foi estudada neste trabalho, visando ter confiabilidade e reprodutibilidade nos resultados. Os processos analíticos com características de identificação e quantificação aplicados nesse projeto são: a cromatografia a gás acoplada a espectrometria de massas (CG/MS), a espectrometria de massas Tanden (MS/MS) e cromatografia líquida de alta eficiência com detector ultra violeta (HPLC/UV). Os resultados demonstram que os três frutos amazônicos comtem ácidos oléico, linoleico e palmítico em proporções diferentes potencializando seu uso em aplicações farmacêuticas, específicamente em tratamentos dermatológicos.

The Amazon region presents a great amount of perennial plants, with particular relevance to the fruit species. The Amazonian fruits are known for their high energy potential and are used as a food source in large regions of the country. Among these fruits, there is acai, the fruit of the açai palm (Euterpe oleracea Martius), copaiba (Copaifera officinalis L.) and Brazil nut (Bertholletia excelsa). These fruits are important for agro-industrial development in the Amazon region. They contain in their composition of protein, fiber and fatty acids. The fruits are fatty acids are used in the pharmaceutical field, with clinical and dermatological purposes. The project aims to provide analytical techniques for characterization and quantification of fatty acids present in the composition of the oily fruits and describe the pharmacological action. These acids are oleic, linoleic and palmitic acids. Analytical techniques for quantifying characteristics should generate reliable and interpretable information about the sample, and the evaluation criteria called validation. The validation was studied in this work, aiming to have reliability and reproducibility of the results. The analytical procedures to identify and quantify features implemented in this project are: a gas chromatography-mass spectrometry (GC / MS), Tanden…

Advisors/Committee Members: Bustillos, José Oscar Willian Vega.

Subjects/Keywords: ácido linoléico; ácido oléico; ácido palmítico; linoleic acid; oleic acid; palmitic acid

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

APA (6^th Edition):

Silva, A. E. d. S. d. (2012). Identificação e quantificação via técnicas cromatográficas de ácidos graxos com potencial farmacológico em frutos amazônicos. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/85/85134/tde-16012013-145227/ ;

Chicago Manual of Style (16^th Edition):

Silva, Alexandre Eduardo de Souza da. “Identificação e quantificação via técnicas cromatográficas de ácidos graxos com potencial farmacológico em frutos amazônicos.” 2012. Masters Thesis, University of São Paulo. Accessed March 09, 2021. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-16012013-145227/ ;.

MLA Handbook (7^th Edition):

Silva, Alexandre Eduardo de Souza da. “Identificação e quantificação via técnicas cromatográficas de ácidos graxos com potencial farmacológico em frutos amazônicos.” 2012. Web. 09 Mar 2021.

Vancouver:

Silva AEdSd. Identificação e quantificação via técnicas cromatográficas de ácidos graxos com potencial farmacológico em frutos amazônicos. [Internet] [Masters thesis]. University of São Paulo; 2012. [cited 2021 Mar 09]. Available from: http://www.teses.usp.br/teses/disponiveis/85/85134/tde-16012013-145227/ ;.

Council of Science Editors:

Silva AEdSd. Identificação e quantificação via técnicas cromatográficas de ácidos graxos com potencial farmacológico em frutos amazônicos. [Masters Thesis]. University of São Paulo; 2012. Available from: http://www.teses.usp.br/teses/disponiveis/85/85134/tde-16012013-145227/ ;

University of Georgia

10. Bachleda, Nicole Melissa. Molecular breeding for improvement of fatty acids in soybean.

Degree: 2016, University of Georgia

URL: http://hdl.handle.net/10724/34839

► Soybean is a major global oil crop. Development of soybean cultivars with enhanced fatty acids is an important breeding goal that will produce healthier oil… (more)

Subjects/Keywords: Soybean; DNA marker; Molecular Breeding; Oleic Acid; Linolenic Acid; Palmitic Acid; and Yield

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

APA (6^th Edition):

Bachleda, N. M. (2016). Molecular breeding for improvement of fatty acids in soybean. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/34839

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):

Bachleda, Nicole Melissa. “Molecular breeding for improvement of fatty acids in soybean.” 2016. Thesis, University of Georgia. Accessed March 09, 2021. http://hdl.handle.net/10724/34839.

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

MLA Handbook (7^th Edition):

Bachleda, Nicole Melissa. “Molecular breeding for improvement of fatty acids in soybean.” 2016. Web. 09 Mar 2021.

Vancouver:

Bachleda NM. Molecular breeding for improvement of fatty acids in soybean. [Internet] [Thesis]. University of Georgia; 2016. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/10724/34839.

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

Council of Science Editors:

Bachleda NM. Molecular breeding for improvement of fatty acids in soybean. [Thesis]. University of Georgia; 2016. Available from: http://hdl.handle.net/10724/34839

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

Delft University of Technology

11. de Leeuw, David (author). Supercritical water gasification: Decomposition of lipids forming a substantial part of sewage sludge.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:c613886e-9fcf-4e93-8e09-a90d436a4573

► Supercritical water gasification is a process in which wet biomass is converted to bio-syngas. In this process the temperature and pressure are raised above the… (more)

▼ Supercritical water gasification is a process in which wet biomass is converted to bio-syngas. In this process the temperature and pressure are raised above the critical point of water (374 C, 221 bar), creating a supercritical medium in which a high conversion and energetic efficiency of biomass to bio-syngas is realized. Due to these high efficiencies supercritical water gasification has received much attention as a potential treatment technique for sewage sludge from wastewater treatment plants. To design a supercritical water gasification process kinetic models are used. They provide predictions on the decomposition products of the organic components of the biomass during treatment. However, kinetic data on lipids, which can make up to 25% of the organic matter in sewage sludge, are not available yet. This study aims to identify main reaction pathways and corresponding kinetic parameters that describe the decomposition of lipids in supercritical water. Experiments were performed to provide data of decomposition products yields and find the dominant reaction pathways. Oleic acid was used as a model compound for lipids from sewage sludge. Experiments were conducted in a stainless steel batch reactor which was heated by immersion in a fluidized hot sand bath. Investigated temperatures and residence times were 400, 420, 460 and 520 C and 15, 35 and 65 min, respectively. Oleic acid feed concentration was 10 wt% and a pressure of 25 MPa was applied. From experimental results the decomposition of oleic acid into aliphatic hydrocarbons and shorter chain fatty acids was identified. With increasing time and temperature these products would either gasify or the aliphatic hydrocarbons would dehydrogenate to cyclic and (poly)-aromatic compounds. A remarkably high selectivity towards the light hydrocarbon gases (C2H6, C2H4, C3H8, C3H6) compared to an earlier study into the decomposition of oleic acid in supercritical water was observed for all temperatures and residence times. Parameters for a kinetic model, build up from the identified reaction paths, were fitted to the experimental data using Matlab. The Arrhenius equation was used to describe the reaction constants as function of temperature. For the oleic acid decomposition an activation energy of 151 kJ/mol was fitted first with a percentage output variation of 82% between 420 C and 520 C. Parameters for the other reactions were fitted using this activation energy as constraint. Qualitative trends on the gas and liquid decomposition products distribution over time and temperature were predicted well by the model, but predictions on the quantitative yield of them were concluded to be inaccurate. Largest differences between experimental and model yields were observed for CH4 and the light hydrocarbon gases. One reason for these model errors is the scarcity of data points in the 0-15 min time-scale, where the process was highest in reactivity. Also some of the reaction pathways in the model might have been oversimplified,… Advisors/Committee Members: de Jong, Wiebren (mentor), Purushothaman Vellayani, Aravind (graduation committee), Eral, Burak (graduation committee), Nugteren, Henk (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Supercritical water gasification; sewage sludge; lipids; oleic acid; kinetic modeling

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

APA (6^th Edition):

de Leeuw, D. (. (2017). Supercritical water gasification: Decomposition of lipids forming a substantial part of sewage sludge. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:c613886e-9fcf-4e93-8e09-a90d436a4573

Chicago Manual of Style (16^th Edition):

de Leeuw, David (author). “Supercritical water gasification: Decomposition of lipids forming a substantial part of sewage sludge.” 2017. Masters Thesis, Delft University of Technology. Accessed March 09, 2021. http://resolver.tudelft.nl/uuid:c613886e-9fcf-4e93-8e09-a90d436a4573.

MLA Handbook (7^th Edition):

de Leeuw, David (author). “Supercritical water gasification: Decomposition of lipids forming a substantial part of sewage sludge.” 2017. Web. 09 Mar 2021.

Vancouver:

de Leeuw D(. Supercritical water gasification: Decomposition of lipids forming a substantial part of sewage sludge. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Mar 09]. Available from: http://resolver.tudelft.nl/uuid:c613886e-9fcf-4e93-8e09-a90d436a4573.

Council of Science Editors:

de Leeuw D(. Supercritical water gasification: Decomposition of lipids forming a substantial part of sewage sludge. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:c613886e-9fcf-4e93-8e09-a90d436a4573

University of Kentucky

12. Walther, Laura A. OLEIC ACID VESICLES: FORMATION, MECHANISMS OF REACTIVITY, AND USES IN DETERMINATION OF TERPENE ACTIVITY.

Degree: 2019, University of Kentucky

URL: https://uknowledge.uky.edu/chemistry_etds/111

► This dissertation will focus on the volatile compounds released upon the burning of incense which are numerous and varied. The first part of this dissertation… (more)

Subjects/Keywords: Incense; Oleic acid vesicles; Terpenes; Fluorescence; Anisotropy; FRET; Analytical Chemistry

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

APA (6^th Edition):

Walther, L. A. (2019). OLEIC ACID VESICLES: FORMATION, MECHANISMS OF REACTIVITY, AND USES IN DETERMINATION OF TERPENE ACTIVITY. (Doctoral Dissertation). University of Kentucky. Retrieved from https://uknowledge.uky.edu/chemistry_etds/111

Chicago Manual of Style (16^th Edition):

Walther, Laura A. “OLEIC ACID VESICLES: FORMATION, MECHANISMS OF REACTIVITY, AND USES IN DETERMINATION OF TERPENE ACTIVITY.” 2019. Doctoral Dissertation, University of Kentucky. Accessed March 09, 2021. https://uknowledge.uky.edu/chemistry_etds/111.

MLA Handbook (7^th Edition):

Walther, Laura A. “OLEIC ACID VESICLES: FORMATION, MECHANISMS OF REACTIVITY, AND USES IN DETERMINATION OF TERPENE ACTIVITY.” 2019. Web. 09 Mar 2021.

Vancouver:

Walther LA. OLEIC ACID VESICLES: FORMATION, MECHANISMS OF REACTIVITY, AND USES IN DETERMINATION OF TERPENE ACTIVITY. [Internet] [Doctoral dissertation]. University of Kentucky; 2019. [cited 2021 Mar 09]. Available from: https://uknowledge.uky.edu/chemistry_etds/111.

Council of Science Editors:

Walther LA. OLEIC ACID VESICLES: FORMATION, MECHANISMS OF REACTIVITY, AND USES IN DETERMINATION OF TERPENE ACTIVITY. [Doctoral Dissertation]. University of Kentucky; 2019. Available from: https://uknowledge.uky.edu/chemistry_etds/111

13. Estupiñán Romero, Mónica. Comprehensive analysis of Pseudomonas aeruginosa oleate-diol synthase activity.

Degree: Departament de Microbiologia i Parasitologia Sanitàries, 2015, Universitat de Barcelona

URL: http://hdl.handle.net/10803/360336

► L'activitat oleat diol sintasa va ser caracteritzada bioquímicament en Pseudomonas aeruginosa 42A2, una soque del medi ambient aïllat en aigües contaminades amb residus oleaginosos, capaç… (more)

Subjects/Keywords: Pseudomonas; Àcids grassos; Ácidos grasos; Fatty acids; Biosíntesi; Biosíntesis; Biosynthesis; Àcid oleic; Ácido oleico; Oleic acid; Ciències de la Salut; 579

11 more images…

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APA (6^th Edition):

Estupiñán Romero, M. (2015). Comprehensive analysis of Pseudomonas aeruginosa oleate-diol synthase activity. (Thesis). Universitat de Barcelona. Retrieved from http://hdl.handle.net/10803/360336

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):

Estupiñán Romero, Mónica. “Comprehensive analysis of Pseudomonas aeruginosa oleate-diol synthase activity.” 2015. Thesis, Universitat de Barcelona. Accessed March 09, 2021. http://hdl.handle.net/10803/360336.

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

MLA Handbook (7^th Edition):

Estupiñán Romero, Mónica. “Comprehensive analysis of Pseudomonas aeruginosa oleate-diol synthase activity.” 2015. Web. 09 Mar 2021.

Vancouver:

Estupiñán Romero M. Comprehensive analysis of Pseudomonas aeruginosa oleate-diol synthase activity. [Internet] [Thesis]. Universitat de Barcelona; 2015. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/10803/360336.

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

Council of Science Editors:

Estupiñán Romero M. Comprehensive analysis of Pseudomonas aeruginosa oleate-diol synthase activity. [Thesis]. Universitat de Barcelona; 2015. Available from: http://hdl.handle.net/10803/360336

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

Universidade Federal de Santa Maria

14. Cristina Ruedell Reschke Banderó. ATIVIDADE ANTICONVULSIVANTE DO ÓLEO DE PEIXE.

Degree: 2010, Universidade Federal de Santa Maria

URL: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3413

►

Methylmalonic acidemias are inherited metabolic disorders characterized by methylmalonate (MMA) accumulation and neurological dysfunction, including seizures. Dietary fatty acids are known as an important energy… (more)

▼

Methylmalonic acidemias are inherited metabolic disorders characterized by methylmalonate (MMA) accumulation and neurological dysfunction, including seizures. Dietary fatty acids are known as an important energy source and reduce seizure activity in selected acute animal models. This study investigates whether the chronic treatment with fish oil or with oleic acid attenuates MMA-induced seizures. Adult male Wistar rats were treated with fish oil (85 mg/kg), oleic acid (85 mg/kg) or vehicle (0.42 % aqueous Cremophor EL, 4 mL/kg/body weight/day), p.o., for 75 days. In the 73th day were implanted a cannula in the right lateral ventricle with electrodes over the parietal cortex for EEG recording. In the 76th day half the animals from each group were injected with NaCl (2.5 μmol/2.5 μL, i.c.v.), and the other half with MMA (2.5 μmol/2.5 μL, i.c.v.), and seizure activity was measured by EEG recording with concomitant behavior monitoring. The effect of prostaglandin E2 (PGE2) on Na+,K+-ATPase activity of slices of cerebral cortex from NaCl-injected (control) animals was determined. Fish oil administration increased the latency for MMA-induced tonic-clonic seizures and reduced the mean amplitude of ictal EEG recordings. Oleic acid decreased mean amplitude of ictal EEG recordings. Treatment with fish oil prevented PGE2-induced decrease of Na+,K+-ATPase activity in cortical slices in vitro. The results support a major anticonvulsant role for fish oil against MMA-induced seizures. The decreased sensitivity of Na+,K+-ATPase from fish oil-treated animals to the inhibitory effect of PGE2 may be related to its currently reported anticonvulsant activity.

A acidemia metilmalônica é um erro inato do metabolismo caracterizado pelo acúmulo tecidual de ácido metilmalônico (MMA) e disfunção neurológica, incluindo convulsões. Os ácidos graxos dietéticos são conhecidos como fonte de energia e reduzem a atividade convulsivante em determinados modelos experimentais agudos de convulsão. Este estudo investiga se o tratamento crônico com óleo de peixe ou com ácido oléico atenua as convulsões induzidas por MMA. Ratos Wistar machos adultos foram tratados com óleo de peixe (85 mg / kg), ácido oléico (85 mg / kg) ou veículo (solução aquosa de Cremophor EL 0,42%, 4 mL / kg de peso corporal / dia), via oral, por 75 dias. No 73 dia foi implantada uma cânula no ventrículo lateral direito e dois eletrodos sobre o córtex parietal para o registro eletroencefalográfico. No 76 dia metade dos animais de cada grupo foi injetada com NaCl (2,5 Smol / 2,5 SL, i.c.v.), e outra metade com MMA (2,5 Smol / 2,5 SL, i.c.v.), e a atividade convulsiva foi medida por EEG e monitoramento comportamental concomitantemente. O efeito da prostaglandina E2 (PGE2) na atividade Na+, K+-ATPase foi determinada em fatias de córtex cerebral dos animais injetados com NaCl (controle). A administração de óleo de peixe aumentou a latência para as convulsões tônico-clônicas induzidas por MMA e reduziu a amplitude média dos registros ictais de EEG. O ácido oléico…

Advisors/Committee Members: Tatiana Emanuelli, Carlos Fernando de Mello, Ana Flávia Furian.

Subjects/Keywords: fish oil; oleic acid; FARMACIA; fatty acid; seizure; methylmalonate; ácidos graxos; inflamação; convulsão; metilmalonato

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

APA (6^th Edition):

Banderó, C. R. R. (2010). ATIVIDADE ANTICONVULSIVANTE DO ÓLEO DE PEIXE. (Thesis). Universidade Federal de Santa Maria. Retrieved from http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3413

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):

Banderó, Cristina Ruedell Reschke. “ATIVIDADE ANTICONVULSIVANTE DO ÓLEO DE PEIXE.” 2010. Thesis, Universidade Federal de Santa Maria. Accessed March 09, 2021. http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3413.

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

MLA Handbook (7^th Edition):

Banderó, Cristina Ruedell Reschke. “ATIVIDADE ANTICONVULSIVANTE DO ÓLEO DE PEIXE.” 2010. Web. 09 Mar 2021.

Vancouver:

Banderó CRR. ATIVIDADE ANTICONVULSIVANTE DO ÓLEO DE PEIXE. [Internet] [Thesis]. Universidade Federal de Santa Maria; 2010. [cited 2021 Mar 09]. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3413.

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

Council of Science Editors:

Banderó CRR. ATIVIDADE ANTICONVULSIVANTE DO ÓLEO DE PEIXE. [Thesis]. Universidade Federal de Santa Maria; 2010. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=3413

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

Virginia Tech

15. Baek, Naerin. Characterization of Hydrophobically Modified Titanium Dioxide Polylactic Acid Nanocomposite Films for Food Packaging Applications.

Degree: PhD, Food Science and Technology, 2016, Virginia Tech

URL: http://hdl.handle.net/10919/82004

► Titanium dioxide (TiO2) polymer nanocomposites improve barrier properties to gas and moisture and mechanical strength as well as providing active packaging functions. However, low compatibility… (more)

▼ Titanium dioxide (TiO2) polymer nanocomposites improve barrier properties to gas and moisture and mechanical strength as well as providing active packaging functions. However, low compatibility between hydrophilic TiO2 nanoparticles and hydrophobic polymers such as polylactic acid (PLA) causes problems due to the tendency of TiO2 nanoparticles (TiO2) to agglomerate and form large clusters. A surface modification of TiO2 with long chain fatty acid may improve the compatibility between PLA and TiO2. The goal of this study was to enhance barrier properties of oxygen and water vapor, mechanical strength and add light protecting function to PLA composites by incorporation of oleic acid modified TiO2 nanoparticles (OA_TiO2). The objectives of this study were: 1) synthesize TiO2 and modify surface of TiO2 with oleic acid, 2) investigate dispersion stability of TiO2 and OA_TiO2 in hydrophobic media, 3) incorporate TiO2 and OA_TiO2 into a PLA matrix and to characterize properties of TiO2PLA (T-PLA) and OA_TiO2 PLA nanocomposite films (OT-PLA), and 4) to determine stability of green tea infusion in T-PLA and OT-PLA packaging model systems during refrigerated storage at 4 °C under florescent lightening. TiO2 was synthesized by using a sol-gel method and the surface of TiO2 was modified by oleic acid using a one-step method. T-PLA and OT-PLA were prepared by solvent casting. TiO2 and OA_TiO2 were analyzed by X-ray diffraction, Fourier transform infrared spectroscopy, thermal analysis and dynamic light scattering. The barrier properties to oxygen and water vapor, morphology, mechanical properties, thermal stability and light absorption properties of T-PLA and OT-PLA were characterized. Dispersion of TiO2 was improved in PLA matrix by the surface modification method with oleic acid. OT-PLA had more effective improvements in the barrier properties and flexibility than T-PLA and PLA, but toughness of the films based on Young's modules of OT-PLA was lower than the T-PLA and the PLA. The OT-PLA may have a potential to be used as transparent, functional and sustainable packaging films, but limited use for complete visible and UV-light protection for photosensitized foods. Advisors/Committee Members: O'Keefe, Sean F. (committeechair), Marcy, Joseph E. (committee member), Kim, Young Teck (committee member), Duncan, Susan E. (committee member).

Subjects/Keywords: titanium dioxide; surface modification; oleic acid; bioplastics polylactic acid; nanocomposites; food packaging; active packaging

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

APA (6^th Edition):

Baek, N. (2016). Characterization of Hydrophobically Modified Titanium Dioxide Polylactic Acid Nanocomposite Films for Food Packaging Applications. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/82004

Chicago Manual of Style (16^th Edition):

Baek, Naerin. “Characterization of Hydrophobically Modified Titanium Dioxide Polylactic Acid Nanocomposite Films for Food Packaging Applications.” 2016. Doctoral Dissertation, Virginia Tech. Accessed March 09, 2021. http://hdl.handle.net/10919/82004.

MLA Handbook (7^th Edition):

Baek, Naerin. “Characterization of Hydrophobically Modified Titanium Dioxide Polylactic Acid Nanocomposite Films for Food Packaging Applications.” 2016. Web. 09 Mar 2021.

Vancouver:

Baek N. Characterization of Hydrophobically Modified Titanium Dioxide Polylactic Acid Nanocomposite Films for Food Packaging Applications. [Internet] [Doctoral dissertation]. Virginia Tech; 2016. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/10919/82004.

Council of Science Editors:

Baek N. Characterization of Hydrophobically Modified Titanium Dioxide Polylactic Acid Nanocomposite Films for Food Packaging Applications. [Doctoral Dissertation]. Virginia Tech; 2016. Available from: http://hdl.handle.net/10919/82004

North Carolina State University

16. Immer, Jeremy Glen. Liquid-Phase Deoxygenation of Free Fatty Acids to Hydrocarbons Using Supported Palladium Catalysts.

Degree: PhD, Chemical Engineering, 2010, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/6219

► Hydrocarbon biofuels that are drop-in replacements for traditional petroleum-derived liquid fuels can be produced from edible and inedible fats and oils (triglyceride sources) via thermocatalytic… (more)

▼ Hydrocarbon biofuels that are drop-in replacements for traditional petroleum-derived liquid fuels can be produced from edible and inedible fats and oils (triglyceride sources) via thermocatalytic processes. Liquid-phase deoxygenation of stearic acid (SA) in dodecane at 300Â°C and 15 atm was employed to screen supported noble metal catalysts for decarboxylation of free fatty acids to hydrocarbons. Commercial samples of Pt/C, Pd/C (4), Pd/Al2O3, and Pd/SiO2 catalysts and an in-house prepared Pd/SiO2 catalyst (each containing 5 wt.% metal) were screened under flowing 0, 5, and 10% H2 (balance He). Under flowing He, most of the catalysts studied failed to achieve 100% SA conversion after 4 h under reaction conditions due to rapid deactivation. The exception was a uniformly impregnated Pd/C catalyst that gave >99% conversion in ~1 h with 99% CO2 selectivity. All of the catalysts were far more stable under H2 yielding nearly complete SA conversion after 4 h; however, they differed markedly in their CO2 selectivities. Pd/SiO2 and Pt/C catalysts were selective toward decarbonylation (CO production), and Pd/C and Pd/Al2O3 catalysts were selective toward decarboxylation. Even under H2, the uniformly impregnated Pd/C catalyst was the most active and selective for the hydrogen-neutral decarboxylation pathway. Semi-batch deoxygenation of SA employing this 5 wt.% Pd/C catalyst was investigated further using on-line quadrupole mass spectrometry. With fresh catalyst, SA deoxygenation under He occurred rapidly with very high CO2 selectivity; however, reuse of the catalyst showed an orders of magnitude loss of decarboxylation activity and high decarbonylation selectivity. Experiments employing smaller amounts of fresh catalyst evidenced that decarboxylation activity under He is limited to ~220 turnovers. Attempts to reactivate the used Pd/C catalyst by H2 treatment were only modestly effective. Increased catalyst lifetime (>2200 turnovers) was achieved by employing a H2-containing purge gas; however, the decarboxylation rate decreases with increasing H2 partial pressure resulting in lower CO2 selectivity. Increasing the initial SA concentration also inhibited decarboxylation, substantially prolonging the batch time and yielding lower overall CO2 selectivity. The origin of this effect was traced to catalyst poisoning by endogenous CO from the decarbonylation pathway. Catalyst poisoning experiments demonstrated that CO strongly inhibits the decarboxylation pathway and that the inhibitory effects of CO and H2 are additive. Under conditions of strong decarboxylation inhibition, the decarbonylation rate was unaffected, and we infer that decarboxylation occurs over different catalytic sites than decarbonylation. An elementary reaction sequence for Pd-catalyzed decarboxylation is proposed which accounts for our observations. Fed-batch deoxygenation of SA and oleic acid was demonstrated in a 50-mL stirred autoclave reactor with continuous feeding for run times up to 24 h. The maximum quasi-steady state decarboxylation rate… Advisors/Committee Members: Jerry L. Whitten, Committee Member (advisor), Steven W. Peretti, Committee Member (advisor), Jan Genzer, Committee Member (advisor), H. Henry Lamb, Committee Chair (advisor).

Subjects/Keywords: biofuels; decarboxylation; decarbonylation; palladium-on-carbon (Pd/C); stearic acid; oleic acid; linoleic acid; free fatty acid; deoxygenation

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❌

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

APA (6^th Edition):

Immer, J. G. (2010). Liquid-Phase Deoxygenation of Free Fatty Acids to Hydrocarbons Using Supported Palladium Catalysts. (Doctoral Dissertation). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/6219

Chicago Manual of Style (16^th Edition):

Immer, Jeremy Glen. “Liquid-Phase Deoxygenation of Free Fatty Acids to Hydrocarbons Using Supported Palladium Catalysts.” 2010. Doctoral Dissertation, North Carolina State University. Accessed March 09, 2021. http://www.lib.ncsu.edu/resolver/1840.16/6219.

MLA Handbook (7^th Edition):

Immer, Jeremy Glen. “Liquid-Phase Deoxygenation of Free Fatty Acids to Hydrocarbons Using Supported Palladium Catalysts.” 2010. Web. 09 Mar 2021.

Vancouver:

Immer JG. Liquid-Phase Deoxygenation of Free Fatty Acids to Hydrocarbons Using Supported Palladium Catalysts. [Internet] [Doctoral dissertation]. North Carolina State University; 2010. [cited 2021 Mar 09]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/6219.

Council of Science Editors:

Immer JG. Liquid-Phase Deoxygenation of Free Fatty Acids to Hydrocarbons Using Supported Palladium Catalysts. [Doctoral Dissertation]. North Carolina State University; 2010. Available from: http://www.lib.ncsu.edu/resolver/1840.16/6219

17. Pereira, Patrícia. Aproveitamento e valorização de resíduos provenientes da produção de Biodiesel.

Degree: 2010, Instituto Politécnico do Porto

URL: http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2559

►

Com o desenvolvimento económico das últimas décadas, a gestão de recursos energéticos é um desafio que a sociedade moderna enfrenta. Assim, actualmente há a necessidade… (more)

▼

Com o desenvolvimento económico das últimas décadas, a gestão de recursos energéticos é um desafio que a sociedade moderna enfrenta. Assim, actualmente há a necessidade da procura de novas fontes de energia, fontes de energia renováveis. Sendo o biodiesel uma fonte de energia renovável, a sua crescente produção irá trazer um aumento da produção de resíduos, como o glicerol e ácidos gordos. É pois importante reduzir/valorizar estes resíduos de forma a impedir a sua acumulação ao longo do tempo. A valorização destes resíduos é o objectivo principal deste trabalho. A primeira parte consistiu na esterificação de ácidos gordos livres com glicerol, na presença de um catalisador ácido, para a produção de monoglicerídeos. Foram utilizados diferentes tipos de matérias-primas: glicerol (76,3%) e resíduo de ácidos gordos (20,8%), fornecidos pela empresa SOCIPOLE SA, glicerol puro (92,2%) e ácido oleico puro (93,1%). Os catalisadores usados foram o cloreto de zinco comercial e o ácido p-tolueonossulfónico comercial. Não foram efectuadas análises específicas aos monoglicerídeos, o produto foi caracterizado pelo índice de acidez. Aparentemente, a maior conversão de ácidos gordos foi obtida no ensaio de esterificação de ácidos gordos com glicerol, ambos da SOCIPOLE SA. No entanto, este não serviu como termo de comparação com os outros devido à formação de uma fase sólida (polímero). Relativamente aos outros ensaios, com razão molar glicerol/ácidos gordos de 1:3, o melhor resultado foi obtido na reacção de glicerol da SOCIPOLE SA com ácido oleico puro, na presença do catalisador ácido p-toluenossulfónico, à temperatura de 106,3ºC e tempo de reacção de 4h30min, sendo a conversão final de ácido oleico 80,7%. Na segunda parte foi feito o estudo da esterificação de ácidos gordos livres com metanol, na presença de ácido sulfúrico, para a produção de biodiesel utilizando ácidos gordos fornecidos pela empresa SOCIPOLE SA, ácidos gordos derivados dos sabões de um resíduo de glicerol fornecido pelo Laboratório de Tecnologia Química, Professora Doutora Lídia Vasconcelos do ISEP e ácidos gordos derivados dos sabões do glicerol bruto, fornecido pela empresa SOCIPOLE SA. Os ensaios foram efectuados a 65ºC, com uma agitação de 120rpm e uma razão molar ácidos gordos/metanol de 1:3. Verificou-se que o índice de acidez do produto, depois de lavado e seco, diminuía com o tempo de reacção e na generalidade a percentagem de ésteres aumentava, observando-se que a partir das seis horas, a reacção se tornava muito lenta. O estudo da razão ácidos gordos/metanol, não permitiu tirar conclusões. O melhor resultado obtido correspondeu a um produto com 96,2% de ésteres metílicos e 8,54mgKOH/gamostra de índice de acidez, pelo que não pode ainda ser designado de biodiesel.

With the economic development of recent decades, the management of energy resources is a challenge that modern society faces. So, nowadays there is the necessity of searching new sources of energy, renewable energy sources. Biodiesel is a renewable energy source, its increased production…

Advisors/Committee Members: Ramalho, Elisa.

Subjects/Keywords: Ácidos gordos; Glicerol; Ácido oleico; Esterificação; Fatty acids; Glycerol; Oleic acid; Esterification

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Pereira, P. (2010). Aproveitamento e valorização de resíduos provenientes da produção de Biodiesel. (Thesis). Instituto Politécnico do Porto. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2559

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):

Pereira, Patrícia. “Aproveitamento e valorização de resíduos provenientes da produção de Biodiesel.” 2010. Thesis, Instituto Politécnico do Porto. Accessed March 09, 2021. http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2559.

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

MLA Handbook (7^th Edition):

Pereira, Patrícia. “Aproveitamento e valorização de resíduos provenientes da produção de Biodiesel.” 2010. Web. 09 Mar 2021.

Vancouver:

Pereira P. Aproveitamento e valorização de resíduos provenientes da produção de Biodiesel. [Internet] [Thesis]. Instituto Politécnico do Porto; 2010. [cited 2021 Mar 09]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2559.

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

Council of Science Editors:

Pereira P. Aproveitamento e valorização de resíduos provenientes da produção de Biodiesel. [Thesis]. Instituto Politécnico do Porto; 2010. Available from: http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2559

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

Universidade Federal de Sergipe

18. Alexsandra Rodrigues do Nascimento. Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel.

Degree: 2009, Universidade Federal de Sergipe

URL: http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=188

►

As mudanças climáticas, induzidas em grande parte pelo uso de combustíveis fósseis e a preocupação com o desenvolvimento sustentável, tem tornado as fontes renováveis de… (more)

▼

As mudanças climáticas, induzidas em grande parte pelo uso de combustíveis fósseis e a preocupação com o desenvolvimento sustentável, tem tornado as fontes renováveis de energia extremamente importantes. Nos dias atuais, fontes renováveis de energia podem ser obtidas, dentre vários processos disponíveis, a partir de reações de transesterificação, esterificação ou pirólise. A reação de esterificação pode ser conduzida tanto com catalisadores homogêneos quanto heterogêneos, sendo eles ácidos ou básicos. O emprego da catálise ácida heterogênea é preferível quando se pretende reduzir significativamente o numero de etapas de purificação dos produtos, bem como a possibilidade de reuso do catalisador. Neste contexto, pesquisas têm sido desenvolvidas utilizando catalisadores heterogêneos com o objetivo de estudar a obtenção de biocombustíveis. Este trabalho teve como finalidade desenvolver catalisadores mesoporosos sulfatados para a aplicação na produção de biodiesel via catálise ácida. A amostra de MCM-41 foi sintetizada pelo método hidrotérmico e foi submetida à sulfatação, de modo a se obter catalisadores ácidos com diferentes teores de sulfato no MCM-41. Os catalisadores foram caracterizados por difração de raios-X e espectroscopia na região do infravermelho. A atividade catalítica dos materiais foi medida em reator de batelada, através da reação modelo de esterificação etílica de acido oléico. Através dos resultados de difração de raios-X, foi observado que o MCM-41 foi obtido com sucesso, pois apresentou os picos característicos da estrutura mesoporosa. As análises de espectroscopia na região do infravermelho mostraram também que o método de calcinação foi promissor na eliminação do direcionador orgânico, tendo sido também observadas as principais bandas vibracionais referentes ao sulfato, ligado na estrutura do MCM-41. Os resultado obtidos em relação à atividade catalítica na reação de esterificação foram promissores, visto que todas as amostras obtidas apresentaram atividade catalítica para a reação de esterificação, a várias temperaturas. Foram observados níveis de conversão do MCM-41 sulfatados, próximos aos dos catalisadores de referência, à base de zircônia e nióbia sulfatados.

Climatic changes, largely induced by the use of fossil fuels and the concern with the sustainable development, has become renewable sources of energy extremely important. Nowadays, renewable sources of energy can be obtained, among several available processes, starting from transesterification, esterification and pyrolysis reaction. The esterification reaction can be carried out with homogeneous and heterogeneous catalysts, being them acids or basic. The use of heterogeneous acid catalysis it is preferable when intend to reduce significantly thr number separation and purifications stages the products, as well as, the possibility of reuse of the catalyst. In this context, researches have been developed using heterogeneous catalysts with the aim to study the biofuels obtaining. The aim os this work was to develop sulphated mesoporosos…

Advisors/Committee Members: Marcelo José Barros de Souza.

Subjects/Keywords: Esterificação; sulphate; MCM-41; oleic acid; ácido oléico; MCM-41; Esterification; sulfato; ENGENHARIA QUIMICA

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Nascimento, A. R. d. (2009). Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel. (Thesis). Universidade Federal de Sergipe. Retrieved from http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=188

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):

Nascimento, Alexsandra Rodrigues do. “Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel.” 2009. Thesis, Universidade Federal de Sergipe. Accessed March 09, 2021. http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=188.

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

MLA Handbook (7^th Edition):

Nascimento, Alexsandra Rodrigues do. “Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel.” 2009. Web. 09 Mar 2021.

Vancouver:

Nascimento ARd. Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel. [Internet] [Thesis]. Universidade Federal de Sergipe; 2009. [cited 2021 Mar 09]. Available from: http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=188.

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

Council of Science Editors:

Nascimento ARd. Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel. [Thesis]. Universidade Federal de Sergipe; 2009. Available from: http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=188

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

Universidade Federal de Sergipe

19. Alexsandra Rodrigues do Nascimento. Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel.

Degree: 2009, Universidade Federal de Sergipe

URL: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=188

►

As mudanças climáticas, induzidas em grande parte pelo uso de combustíveis fósseis e a preocupação com o desenvolvimento sustentável, tem tornado as fontes renováveis de… (more)

▼

As mudanças climáticas, induzidas em grande parte pelo uso de combustíveis fósseis e a preocupação com o desenvolvimento sustentável, tem tornado as fontes renováveis de energia extremamente importantes. Nos dias atuais, fontes renováveis de energia podem ser obtidas, dentre vários processos disponíveis, a partir de reações de transesterificação, esterificação ou pirólise. A reação de esterificação pode ser conduzida tanto com catalisadores homogêneos quanto heterogêneos, sendo eles ácidos ou básicos. O emprego da catálise ácida heterogênea é preferível quando se pretende reduzir significativamente o numero de etapas de purificação dos produtos, bem como a possibilidade de reuso do catalisador. Neste contexto, pesquisas têm sido desenvolvidas utilizando catalisadores heterogêneos com o objetivo de estudar a obtenção de biocombustíveis. Este trabalho teve como finalidade desenvolver catalisadores mesoporosos sulfatados para a aplicação na produção de biodiesel via catálise ácida. A amostra de MCM-41 foi sintetizada pelo método hidrotérmico e foi submetida à sulfatação, de modo a se obter catalisadores ácidos com diferentes teores de sulfato no MCM-41. Os catalisadores foram caracterizados por difração de raios-X e espectroscopia na região do infravermelho. A atividade catalítica dos materiais foi medida em reator de batelada, através da reação modelo de esterificação etílica de acido oléico. Através dos resultados de difração de raios-X, foi observado que o MCM-41 foi obtido com sucesso, pois apresentou os picos característicos da estrutura mesoporosa. As análises de espectroscopia na região do infravermelho mostraram também que o método de calcinação foi promissor na eliminação do direcionador orgânico, tendo sido também observadas as principais bandas vibracionais referentes ao sulfato, ligado na estrutura do MCM-41. Os resultado obtidos em relação à atividade catalítica na reação de esterificação foram promissores, visto que todas as amostras obtidas apresentaram atividade catalítica para a reação de esterificação, a várias temperaturas. Foram observados níveis de conversão do MCM-41 sulfatados, próximos aos dos catalisadores de referência, à base de zircônia e nióbia sulfatados.

Climatic changes, largely induced by the use of fossil fuels and the concern with the sustainable development, has become renewable sources of energy extremely important. Nowadays, renewable sources of energy can be obtained, among several available processes, starting from transesterification, esterification and pyrolysis reaction. The esterification reaction can be carried out with homogeneous and heterogeneous catalysts, being them acids or basic. The use of heterogeneous acid catalysis it is preferable when intend to reduce significantly thr number separation and purifications stages the products, as well as, the possibility of reuse of the catalyst. In this context, researches have been developed using heterogeneous catalysts with the aim to study the biofuels obtaining. The aim os this work was to develop sulphated mesoporosos…

Advisors/Committee Members: Marcelo José Barros de Souza.

Subjects/Keywords: Esterificação; ácido oléico; sulfato; MCM-41; ENGENHARIA QUIMICA; Esterification; oleic acid; sulphate; MCM-41

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Nascimento, A. R. d. (2009). Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel. (Thesis). Universidade Federal de Sergipe. Retrieved from http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=188

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):

Nascimento, Alexsandra Rodrigues do. “Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel.” 2009. Thesis, Universidade Federal de Sergipe. Accessed March 09, 2021. http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=188.

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

MLA Handbook (7^th Edition):

Nascimento, Alexsandra Rodrigues do. “Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel.” 2009. Web. 09 Mar 2021.

Vancouver:

Nascimento ARd. Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel. [Internet] [Thesis]. Universidade Federal de Sergipe; 2009. [cited 2021 Mar 09]. Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=188.

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

Council of Science Editors:

Nascimento ARd. Esterificação de ácido oléico sobre catalisadores mesoporosos tipo SO4-2/MCM-41 visando a produção de biodiesel. [Thesis]. Universidade Federal de Sergipe; 2009. Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=188

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

20. Georges, Mathias. Approche du frittage SPS de céramiques fines de carbure de bore : rôle des poudres initiales et de la mise en forme : SPS sintering approach to fine boron carbide ceramics : role of initial powders and forming.

Degree: Docteur es, Matériaux Céramiques et Traitements de Surface, 2016, Limoges

URL: http://www.theses.fr/2016LIMO0132

►

Le frittage par le procédé Spark Plasma Sintering (SPS) de céramiques denses de carbure de bore sans ajout d’additifs de frittage a été investi. L’effet… (more)

▼

Le frittage par le procédé Spark Plasma Sintering (SPS) de céramiques denses de carbure de bore sans ajout d’additifs de frittage a été investi. L’effet de la mise en forme de la poudre de carbure de bore a été étudié. Dans ce cadre, une étude sur la mise en suspension de la poudre commerciale a été menée, quatre solvants permettant l’obtention de suspensions stables ont ainsi été identifiés (eau dés-ionisée, mélange eau dés-ionisée/tétraméthylamonium, acide oléique et éthylène glycol). Des valeurs de densité relative à cru plus élevées ont été obtenues par voie liquide et coulage naturel par rapport à celles des crus obtenus par pressage uniaxiale. De plus, le cycle de frittage SPS a été optimisé notamment sur la base de certains paramètres (température, temps du palier isotherme, contrainte uniaxiale appliquée). Les cinétiques de densification associées ont conduit à l’établissement d’une carte de frittage SPS du carbure de bore. Cette dernière a mis en évidence un large domaine de valeurs de densité relative (comprises entre 84 et 97%), pour lequel le phénomène de croissance granulaire est peu présent. La confrontation des données expérimentales avec le modèle viscoplastique d’Olevsky a conduit à identifier les mécanismes de densification sur la base notamment des valeurs d’exposant de contrainte (de l’ordre de 3-4) et d’énergie d’activation apparente (112 kJ.mol-1). Ainsi, il a été démontré que la consolidation du carbure de bore était assistée par un mécanisme de déformation plastique gouverné par des mouvements de dislocations. Les observations microstructurales suggèrent également l’existence d’un phénomène de maclage à haute température. En parallèle, une instrumentation spécifique a été mise en place permettant d’identifier les caractéristiques de fonctionnement du générateur de courant pulsé. Sur la base de ces données électriques, un modèle numérique robuste par éléments finis du procédé SPS a été établi. Le développement de ce modèle numérique a permis d’optimiser le passage au frittage de céramique de carbure de bore de plus grande dimension. Ce changement d’échelle a nécessité l’optimisation de paramètres tels que la température de frittage ou encore les caractéristiques géométriques de la matrice.

Sintering of dense boron carbide ceramics by Spark Plasma Sintering (SPS) without sintering additives was investigated. The shaping effect of the commercial boron carbide powder was analysed. In this context, a study on the suspension of the powder was carried out, and four solvents allowing to obtain stable suspensions were thus identified (deionized water, mixture of deionized water/tetramethylammonium, oleic acid and ethylene glycol). Higher green relative densities were obtained by the liquid route and slip casting compared to those obtained by uniaxial pressing. In addition, the SPS sintering cycle has been optimized based on these parameters: temperature, isothermal dwell-time, applied uniaxial stress. The associated densification kinetics led to the establishment of a sintering map for SPS treatment…

Advisors/Committee Members: Maître, Alexandre (thesis director), Antou, Guy (thesis director), Pradeilles, Nicolas (thesis director).

Subjects/Keywords: Tétraméthylamonium; Acide oléique; Éthylène glycol; Tetraméthylamonium; Oleic acid; Ethylene glycol; 620.140 4

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Georges, M. (2016). Approche du frittage SPS de céramiques fines de carbure de bore : rôle des poudres initiales et de la mise en forme : SPS sintering approach to fine boron carbide ceramics : role of initial powders and forming. (Doctoral Dissertation). Limoges. Retrieved from http://www.theses.fr/2016LIMO0132

Chicago Manual of Style (16^th Edition):

Georges, Mathias. “Approche du frittage SPS de céramiques fines de carbure de bore : rôle des poudres initiales et de la mise en forme : SPS sintering approach to fine boron carbide ceramics : role of initial powders and forming.” 2016. Doctoral Dissertation, Limoges. Accessed March 09, 2021. http://www.theses.fr/2016LIMO0132.

MLA Handbook (7^th Edition):

Georges, Mathias. “Approche du frittage SPS de céramiques fines de carbure de bore : rôle des poudres initiales et de la mise en forme : SPS sintering approach to fine boron carbide ceramics : role of initial powders and forming.” 2016. Web. 09 Mar 2021.

Vancouver:

Georges M. Approche du frittage SPS de céramiques fines de carbure de bore : rôle des poudres initiales et de la mise en forme : SPS sintering approach to fine boron carbide ceramics : role of initial powders and forming. [Internet] [Doctoral dissertation]. Limoges; 2016. [cited 2021 Mar 09]. Available from: http://www.theses.fr/2016LIMO0132.

Council of Science Editors:

Georges M. Approche du frittage SPS de céramiques fines de carbure de bore : rôle des poudres initiales et de la mise en forme : SPS sintering approach to fine boron carbide ceramics : role of initial powders and forming. [Doctoral Dissertation]. Limoges; 2016. Available from: http://www.theses.fr/2016LIMO0132

21. Baraldi, Flavia Guariente. Alterações no metabolismo corporal e mitocondrial promovidas pela suplementação da dieta com ácido linoléico conjugado (CLA) e ácido oléico em camundongos.

Degree: Mestrado, Bioquímica, 2014, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/17/17131/tde-09012015-172710/ ;

►

A obesidade é atualmente um dos problemas públicos de saúde mais visível e negligenciado. Ainda, essa condição pode causar sérios problemas de saúde como doenças… (more)

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A obesidade é atualmente um dos problemas públicos de saúde mais visível e negligenciado. Ainda, essa condição pode causar sérios problemas de saúde como doenças cardiovasculares, diabetes, hipertensão arterial e diversos problemas fisiológicos. Dietas alimentares e/ou o uso de fármacos tem demonstrado pouca eficiência (e grandes efeitos colaterais) em reduzir a incidência de sobrepeso e obesidade no mundo. Dessa forma outras estratégias são requeridas para auxiliar no controle desta epidemia global. Nesse contexto, alguns ácidos graxos específicos podem desempenhar um importante papel na regulação da expressão de genes que possuem a habilidade de modular metabolismo. O ácido linoléico conjugado (CLA, 18:2) e o ácido oléico (18:1) tem sido descritos com propriedades anti-obesidade: a respeito de CLA, são bem conhecidos os seus efeitos adipotróficos; quanto ao oléico, são bem conhecidos os seus efeitos anti-diabetes; outros efeitos desses ácidos graxos sobre o metabolismo corporal são desconhecidos ou controversos. Dessa forma, o objetivo deste trabalho foi avaliar os efeitos da suplementação da dieta de camundongos (C57bl6) com esses dois ácidos graxos, individualmente ou em conjunto, na modulação do metabolismo corporal e mitocondrial como uma possível estratégia de combate à obesidade. Foram analisados parâmetros bioquímicos, moleculares, fisiológicos, morfológicos e funcionais. Nossos resultados demonstram que o ácido graxo indutor de aumento do gasto energético corporal e mitocondrial hepático é o CLA e não o oléico; quando suplementados em conjunto, os efeitos metabólicos do CLA se sobrepõem aos do oléico, mantendo esses metabolismos elevados. O aumento de metabolismo mitocondrial está relacionado ao aumento de expressão/atividade de proteínas desacopladoras, as quais parecem ser controladas por espécies reativas de O2 mitocondriais. Demonstramos também que no tecido adiposo branco o ácido oléico não exerce efeitos atróficos como o CLA, os quais estão relacionados a inibição da expressão de PPAR1. Por outro lado, verificamos que a suplementação conjunta com ácido oléico previne efeitos adversos da suplementação da dieta com CLA, como a hipertrofia hepática e resistência a insulina. Concluímos dessa forma que a suplementação da dieta com CLA aumenta o metabolismo corporal e mitocondrial; a suplementação com ácido oléico em conjunto não potencializa os efeitos do CLA, porém previne seus efeitos adversos como a hipertrofia hepática e resistência a insulina. Em conjunto esses ácidos graxos constituem uma boa estratégia alimentar contra o ganho de peso corporal.

Obesity is one of the major public health problems. This condition can leads to the development of other complications such as cardiovascular disease, diabetes and hypertension. Diet and/or drug treatments have shown low efficiency (and major side effects) in reducing the incidence of overweight and obesity in worldwide. On the other hand, some specific fatty acids may play an important role regulating the expression of genes that modulate the metabolism.…

Advisors/Committee Members: Alberici, Luciane Carla.

Subjects/Keywords: ácido oléico; CLA; CLA; mitochondria; mitocôndria; oleic acid.; proteína desacopladora; uncoupling protein

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❌

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

APA (6^th Edition):

Baraldi, F. G. (2014). Alterações no metabolismo corporal e mitocondrial promovidas pela suplementação da dieta com ácido linoléico conjugado (CLA) e ácido oléico em camundongos. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/17/17131/tde-09012015-172710/ ;

Chicago Manual of Style (16^th Edition):

Baraldi, Flavia Guariente. “Alterações no metabolismo corporal e mitocondrial promovidas pela suplementação da dieta com ácido linoléico conjugado (CLA) e ácido oléico em camundongos.” 2014. Masters Thesis, University of São Paulo. Accessed March 09, 2021. http://www.teses.usp.br/teses/disponiveis/17/17131/tde-09012015-172710/ ;.

MLA Handbook (7^th Edition):

Baraldi, Flavia Guariente. “Alterações no metabolismo corporal e mitocondrial promovidas pela suplementação da dieta com ácido linoléico conjugado (CLA) e ácido oléico em camundongos.” 2014. Web. 09 Mar 2021.

Vancouver:

Baraldi FG. Alterações no metabolismo corporal e mitocondrial promovidas pela suplementação da dieta com ácido linoléico conjugado (CLA) e ácido oléico em camundongos. [Internet] [Masters thesis]. University of São Paulo; 2014. [cited 2021 Mar 09]. Available from: http://www.teses.usp.br/teses/disponiveis/17/17131/tde-09012015-172710/ ;.

Council of Science Editors:

Baraldi FG. Alterações no metabolismo corporal e mitocondrial promovidas pela suplementação da dieta com ácido linoléico conjugado (CLA) e ácido oléico em camundongos. [Masters Thesis]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/17/17131/tde-09012015-172710/ ;

Universidade do Rio Grande do Sul

22. Panta, Priscila Chaves. Obtenção de nanopartículas de óxido de ferro por coprecipitação, sua estabilização com surfactantes e caracterização quanto à morfologia, cristalinidade e comportamento magnético.

Degree: 2013, Universidade do Rio Grande do Sul

URL: http://hdl.handle.net/10183/87358

►

Este trabalho investiga a obtenção de nanopartículas (NP) de óxido de ferro por coprecipitação, sua estabilização com surfactantes e caracterização quanto à morfologia e comportamento… (more)

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Este trabalho investiga a obtenção de nanopartículas (NP) de óxido de ferro por coprecipitação, sua estabilização com surfactantes e caracterização quanto à morfologia e comportamento magnético. Atualmente, as NP estão sendo amplamente utilizadas para aplicações biomédicas, tais como contraste em imagens médicas e sistema de distribuição de drogas. Na síntese das NP foram investigados, parâmetros como a temperatura da reação, o pH da solução e a velocidade de agitação. O estudo da estabilidade comparou dois diferentes surfactantes: o ácido oleico (AO) e o polietileno glicol (PEG). As NP obtidas foram caracterizadas por difração de raios X (DRX), e quanto à sua morfologia por microscopia eletrônica por varredura (MEV) e microscopia eletrônica de transmissão (MET), a qual também proporcionou uma distribuição de tamanho de partículas, com variação entre 5 nm e 10,23 nm. A interação entre o óxido de ferro e seus revestimentos foi caracterizada por espectrocopia no infravermelho (FTIR) e espectrocopia Raman. O comportamento magnético das NP foi caracterizado por magnetometria de gradiente de força alternada (AGFM) e espectroscopia Mössbauer. Os resultados revelaram que as NP de óxido de ferro são tipicamente constituídas por magnetita ( ) revestida com AO e PEG e com um tamanho médio de cristalito entre 4,6 e 19,2 nm, calculado através da equação de Scherrer. O AGFM mostrou que as propriedades magnéticas das partículas foram mais eficientes para as NP com revestimento, do que com as NP sem revestimento, e o valor de magnetização de saturação (M) para a revestida com PEG foi maior quando comparado com a revestida com AO. A espectroscopia Mössbauer foi utilizada para confirmação do óxido de ferro como , para estimar tamanho de partícula quando os espectros são medidos a baixa temperatura e para análise do comportamento superparamagnético das partículas.

This work investigates the obtained nanoparticles (NP) iron oxide by coprecipitation stabilization with surfactants and characterize the morphology and magnetic behavior. Currently, the NP are being widely used for biomedical applications such as contrast in medical imaging and drug delivery system. In the synthesis of NP were investigated parameters such as the reaction temperature, the pH and stirring speed. The stability study compared two different surfactants: oleic acid (OA) and polyethylene glycol (PEG). The NP were characterized by X-ray diffraction (XRD), and morphologically by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which also provided a distribution of particle size, ranging from 5 nm and 10.23 nm. The interaction between the iron oxide and their coatings was characterized by infrared spectroscopy (FTIR) and Raman spectroscopy. The magnetic behavior of NP was characterized by magnetometry alternating gradient force (AGFM) and Mössbauer spectroscopy. The results show that the NP iron oxide are typically comprised of magnetite ( ) coated with PEG and AO and a crystallite size between 4.6 and 19.2 nm calculated by the…

Advisors/Committee Members: Bergmann, Carlos Perez.

Subjects/Keywords: Propriedades magnéticas; Nanoparticles; Coprecipitation; Nanoparticulas; Óxido de ferro; Polyethylene glycol; Oleic acid; Surfactant; Morphology; Superparamagnetism

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❌

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

APA (6^th Edition):

Panta, P. C. (2013). Obtenção de nanopartículas de óxido de ferro por coprecipitação, sua estabilização com surfactantes e caracterização quanto à morfologia, cristalinidade e comportamento magnético. (Thesis). Universidade do Rio Grande do Sul. Retrieved from http://hdl.handle.net/10183/87358

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):

Panta, Priscila Chaves. “Obtenção de nanopartículas de óxido de ferro por coprecipitação, sua estabilização com surfactantes e caracterização quanto à morfologia, cristalinidade e comportamento magnético.” 2013. Thesis, Universidade do Rio Grande do Sul. Accessed March 09, 2021. http://hdl.handle.net/10183/87358.

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

MLA Handbook (7^th Edition):

Panta, Priscila Chaves. “Obtenção de nanopartículas de óxido de ferro por coprecipitação, sua estabilização com surfactantes e caracterização quanto à morfologia, cristalinidade e comportamento magnético.” 2013. Web. 09 Mar 2021.

Vancouver:

Panta PC. Obtenção de nanopartículas de óxido de ferro por coprecipitação, sua estabilização com surfactantes e caracterização quanto à morfologia, cristalinidade e comportamento magnético. [Internet] [Thesis]. Universidade do Rio Grande do Sul; 2013. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/10183/87358.

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

Council of Science Editors:

Panta PC. Obtenção de nanopartículas de óxido de ferro por coprecipitação, sua estabilização com surfactantes e caracterização quanto à morfologia, cristalinidade e comportamento magnético. [Thesis]. Universidade do Rio Grande do Sul; 2013. Available from: http://hdl.handle.net/10183/87358

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

Universidade Federal de Santa Maria

23. Francieli Isa Ziembowicz. OLIGOÉSTERES E POLIÉSTERES OBTIDOS A PARTIR DO ÁCIDO OLEICO MODIFICADO COM FORMA ESTRELA: SÍNTESE E CARACTERIZAÇÃO FÍSICO-QUÍMICA.

Degree: 2012, Universidade Federal de Santa Maria

URL: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5121

►

Este trabalho investigou a reação de cura do ácido oleico epoxidado (ME) com forma estrela com diferentes anidridos, originando oligoésteres e poliésteres. O ácido oleico… (more)

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Este trabalho investigou a reação de cura do ácido oleico epoxidado (ME) com forma estrela com diferentes anidridos, originando oligoésteres e poliésteres. O ácido oleico modificado foi obtido pela esterificação do ácido oleico com um aminoálcool dando origem ao aminoéster, seguido da epoxidação da dupla ligação. As reações de polimerização foram realizadas a partir da abertura dos anéis epóxi na presença de diferentes anidridos de ácido cíclico: anidrido ftálico (AF), anidrido maleico (AM) e anidrido succínico (AS). As estruturas dos produtos das reações foram elucidadas por Ressonância Magnética Nuclear (RMN) de 1H e 13C e Espectroscopia de Infravermelho (FT-IR). A técnica de Calorimetria Exploratória Diferencial (DSC) permitiu o estudo do processo de reticulação dos diferentes sistemas estudados, possibilitando a determinação de parâmetros cinéticos e termodinâmicos. Os parâmetros cinéticos da reação de cura dos sistemas ME/AM e ME/AS foram determinados pelos métodos Osawa, Kissinger e Barret. O comportamento térmico dos produtos obtidos foi estudado utilizando a técnica de DSC e Análise Termogravimétrica (TGA). Evidenciou-se que a natureza dos anidridos influencia nos parâmetros termodinâmicos e cinéticos da reação de reticulação. Os valores de DH para as reações de abertura do anel epóxi estão relacionados a fatores estéricos como o tamanho da molécula e a posição do anel oxirano na estrutura do ME. A adição de BADGE na mistura ME/anidrido aumentou a massa molar e melhorou as propriedades térmicas e mecânicas dos poliésteres. Variando a composição do sistema as características dos materiais obtidos passaram de termoplásticos a termorrígidos. Os resultados de GPC mostraram que os materiais sem BADGE consistem essencialmente de oligômeros e as resinas com BADGE se apresentaram insolúveis e com aspecto de resinas poliméricas sólidas. Os resultados de reologia indicaram que, todas as amostras apresentaram comportamento de fluido newtoniano. Os valores de viscosidade das amostras sem BADGE indicaram que estes materiais apresentaram características de fluidos altamente viscosos e as amostras na presença de BADGE apresentaram características típicas de sólido.

This works investigated the curing reaction of epoxidized oleic acid starshaped with different anhydrides, forming product as oligoésteres and polyesters. Oleic acid modified was obtained by esterification of oleic acid with an aminoalcohol to the resulting aminoester, followed by epoxidation of the double bond. The polymerization reactions were carried out from the opening of epoxy rings in the presence of different cyclic acid anhydrides: phthalic anhydride (PA), maleic anhydride (MA) and succinic anhydride (SA). The structures of the products in these reactions were elucidated by nuclear magnetic resonance (NMR) 1H and 13C and infrared spectroscopy (FT-IR). The technique of Differential Scanning Calorimetry (DSC) allowed the study of the crosslinking process of the different systems studied, allowing the determination of kinetic and thermodynamic…

Advisors/Committee Members: Marcos Antonio Villetti, Irene Teresinha Santos Garcia, Carmen Luisa Kloster.

Subjects/Keywords: reologia; comportamento térmico; poliéster; ácido oleico; QUIMICA; polyesters; oleic acid; thermal behavior; rheology

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

APA (6^th Edition):

Ziembowicz, F. I. (2012). OLIGOÉSTERES E POLIÉSTERES OBTIDOS A PARTIR DO ÁCIDO OLEICO MODIFICADO COM FORMA ESTRELA: SÍNTESE E CARACTERIZAÇÃO FÍSICO-QUÍMICA. (Thesis). Universidade Federal de Santa Maria. Retrieved from http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5121

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):

Ziembowicz, Francieli Isa. “OLIGOÉSTERES E POLIÉSTERES OBTIDOS A PARTIR DO ÁCIDO OLEICO MODIFICADO COM FORMA ESTRELA: SÍNTESE E CARACTERIZAÇÃO FÍSICO-QUÍMICA.” 2012. Thesis, Universidade Federal de Santa Maria. Accessed March 09, 2021. http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5121.

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

MLA Handbook (7^th Edition):

Ziembowicz, Francieli Isa. “OLIGOÉSTERES E POLIÉSTERES OBTIDOS A PARTIR DO ÁCIDO OLEICO MODIFICADO COM FORMA ESTRELA: SÍNTESE E CARACTERIZAÇÃO FÍSICO-QUÍMICA.” 2012. Web. 09 Mar 2021.

Vancouver:

Ziembowicz FI. OLIGOÉSTERES E POLIÉSTERES OBTIDOS A PARTIR DO ÁCIDO OLEICO MODIFICADO COM FORMA ESTRELA: SÍNTESE E CARACTERIZAÇÃO FÍSICO-QUÍMICA. [Internet] [Thesis]. Universidade Federal de Santa Maria; 2012. [cited 2021 Mar 09]. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5121.

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

Council of Science Editors:

Ziembowicz FI. OLIGOÉSTERES E POLIÉSTERES OBTIDOS A PARTIR DO ÁCIDO OLEICO MODIFICADO COM FORMA ESTRELA: SÍNTESE E CARACTERIZAÇÃO FÍSICO-QUÍMICA. [Thesis]. Universidade Federal de Santa Maria; 2012. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5121

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

Universidade do Estado do Rio de Janeiro

24. Anna Carolina Veiga Fercher. Síntese de ésteres derivados do ácido oléico empregando lipases produzidas por Yarrowia lipolytica.

Degree: Master, 2014, Universidade do Estado do Rio de Janeiro

URL: http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=8774 ;

►

Biodiesel é um biocombustível que consiste na mistura de ésteres monoalquílicos de ácidos graxos de cadeia longa. O processo usual de produção deste combustível é… (more)

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Biodiesel é um biocombustível que consiste na mistura de ésteres monoalquílicos de ácidos graxos de cadeia longa. O processo usual de produção deste combustível é a transesterificação de óleos vegetais com álcoois de cadeia curta. Nesse processo, a matéria prima deve conter baixo conteúdo de ácido graxos livres ( ≤ 1%) e água (≤ 0,5%). Como alternativa ao processo de transesterificação, destaca-se o emprego de matérias-primas de baixo custo, com elevado teor de ácidos graxos livres, para a síntese de ésteres alquílicos através de reações de esterificação. As reações de produção do biodiesel podem ser catalisadas por via química (ácida e básica) ou enzimática. Na catálise enzimática, os biocatalisadores empregados são as lipases, que catalisam a hidrólise e síntese de ésteres e podem ser obtidas a partir de microrganismos, plantas ou tecido animal, sendo as de origem microbiana as mais utilizadas. O objetivo principal deste trabalho foi avaliar o potencial da lipase de Yarrowia lipolytica, uma levedura não convencional, na síntese de ésteres do ácido oleico visando à obtenção de ésteres alquílicos (biodiesel). Foram estudados os efeitos da temperatura (25, 30, 35, 40, 50 e 60 °C), do teor enzimático (5, 10, 20, 30 e 40% v/v) e do tipo de álcool (metanol, etanol, n-propanol e n-butanol ) nas reações de esterificação do ácido oleico empregando o extrato enzimático líquido produzido por Yarrowia lipolytica. Os resultados obtidos mostraram que as reações conduzidas a 30 °C e com 10% v/v do extrato enzimático apresentaram maior taxa inicial de reação. Também foi avaliada a utilização do extrato enzimático liofilizado (5% m/v) e do PES (produto enzimático sólido) (5% m/v) de Yarrowia lipolytica na reação de esterificação do ácido oleico com n-butanol a 30 °C. O maior consumo de ácido oleico ocorreu na reação conduzida com o PES. O efeito da temperatura (25, 30, 35, 40 e 50 °C) na síntese de oleato de butila foi, então, investigado nas reações empregando PES como biocatalisador e a maior conversão de ácido oleico foi verificada na temperatura de 40 °C

Biodiesel is a biofuel which consists in a mix of monoalkylesters from long chain fatty acids. The usual method of producing this fuel is transesterification of vegetable oils with lower alcohols. In this process, the raw material should have a low content of free fatty acid (≤ 1%) and water(≤ 0.5%). As an alternative to the transesterification process stands out the use of low cost raw materials with high content of free fatty acids for the synthesis of alkyl esters through esterification reactions. Reactions for biodiesel production can be catalyzed chemically (acid and basic) or enzymatic. In enzymatic catalysis biocatalysts employed are lipases which are enzymes that catalyze hydrolysis and ester synthesis and can be obtained from microorganisms, plants and animal tissue and the most widely used is from microbial origin. The main objective of this study was to evaluate the potential of Yarrowia lipolyticas lipase a non-conventional yeast on the…

Advisors/Committee Members: Márcia Monteiro Machado Gonçalves, Antonio Carlos Augusto da Costa, Marta Antunes Pereira Langone, Maria Alice Zarur Coelho, Bernardo Dias Ribeiro.

Subjects/Keywords: Yarrowia lipolytica; lipases; ácido oléico; Biodiesel; Biodiesel; oleic acid; lipases; Yarrowia lipolytica; TECNOLOGIA QUIMICA

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

APA (6^th Edition):

Fercher, A. C. V. (2014). Síntese de ésteres derivados do ácido oléico empregando lipases produzidas por Yarrowia lipolytica. (Masters Thesis). Universidade do Estado do Rio de Janeiro. Retrieved from http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=8774 ;

Chicago Manual of Style (16^th Edition):

Fercher, Anna Carolina Veiga. “Síntese de ésteres derivados do ácido oléico empregando lipases produzidas por Yarrowia lipolytica.” 2014. Masters Thesis, Universidade do Estado do Rio de Janeiro. Accessed March 09, 2021. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=8774 ;.

MLA Handbook (7^th Edition):

Fercher, Anna Carolina Veiga. “Síntese de ésteres derivados do ácido oléico empregando lipases produzidas por Yarrowia lipolytica.” 2014. Web. 09 Mar 2021.

Vancouver:

Fercher ACV. Síntese de ésteres derivados do ácido oléico empregando lipases produzidas por Yarrowia lipolytica. [Internet] [Masters thesis]. Universidade do Estado do Rio de Janeiro; 2014. [cited 2021 Mar 09]. Available from: http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=8774 ;.

Council of Science Editors:

Fercher ACV. Síntese de ésteres derivados do ácido oléico empregando lipases produzidas por Yarrowia lipolytica. [Masters Thesis]. Universidade do Estado do Rio de Janeiro; 2014. Available from: http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=8774 ;

Brigham Young University

25. Shearer, Christine Nicole. Accelerated Shelf Life Determination of Antioxidant Stabilized High Oleic Sunflower and Canola Oils in Plastic Bottles.

Degree: MS, 2010, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3798&context=etd

► Vegetable oil is an important commodity; however, the majority of commercially available vegetable oils have a fairly short shelf life, which limits their usefulness… (more)

Subjects/Keywords: Accelerated shelf life testing; oleic acid; vegetable oil; storage; descriptive analysis; Food Science; Nutrition

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

APA (6^th Edition):

Shearer, C. N. (2010). Accelerated Shelf Life Determination of Antioxidant Stabilized High Oleic Sunflower and Canola Oils in Plastic Bottles. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3798&context=etd

Chicago Manual of Style (16^th Edition):

Shearer, Christine Nicole. “Accelerated Shelf Life Determination of Antioxidant Stabilized High Oleic Sunflower and Canola Oils in Plastic Bottles.” 2010. Masters Thesis, Brigham Young University. Accessed March 09, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3798&context=etd.

MLA Handbook (7^th Edition):

Shearer, Christine Nicole. “Accelerated Shelf Life Determination of Antioxidant Stabilized High Oleic Sunflower and Canola Oils in Plastic Bottles.” 2010. Web. 09 Mar 2021.

Vancouver:

Shearer CN. Accelerated Shelf Life Determination of Antioxidant Stabilized High Oleic Sunflower and Canola Oils in Plastic Bottles. [Internet] [Masters thesis]. Brigham Young University; 2010. [cited 2021 Mar 09]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3798&context=etd.

Council of Science Editors:

Shearer CN. Accelerated Shelf Life Determination of Antioxidant Stabilized High Oleic Sunflower and Canola Oils in Plastic Bottles. [Masters Thesis]. Brigham Young University; 2010. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3798&context=etd

Univerzitet u Beogradu

26. Trumić, Maja. 1981-. Model kinetike izdvajanja čestica tonera iz vodene suspenzije papira.

Degree: Tehnički fakultet u Boru, 2016, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:11326/bdef:Content/get

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Tehnološko inženjerstvo - Hemija i hemijska tehnologija / Technological engineering - Chemistry and Chemical Technology

Izdvajanje čestica tonera iz vodene suspenzije papira ispitivano je na… (more)

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Tehnološko inženjerstvo - Hemija i hemijska tehnologija / Technological engineering - Chemistry and Chemical Technology

Izdvajanje čestica tonera iz vodene suspenzije papira ispitivano je na sintetičkim uzorcima celuloznih vlakana i čestica tonera da bi se eliminisao uticaj sraslaca vlakno - čestica kao i uticaj krupnoće čestica tonera na efikasnost procesa flotiranja tonera uz konstantan maseni odnos vlakana celuloze i čestica tonera. Takođe da bi se obezbedile iste fizičko hemijske karakteristike tonera kao nakon dezintegracije štampanog papira, sintetički uzorak je pripremljen postupkom topljenja u cilju simuliranja procesa oksidopolimerizacije do koje dolazi prilikom štampanja na laserskom štampaču, usitnjavanjem i prosejavanjem na seriji sita radi dobijanja srednjeg prečnika čestica tonera približnom prečniku pri dezintegraciji štampanog papira. Rezultati analiza SEM i DSC pokazale su da je moguće pripremiti sintetički uzorak koji ima skoro identične fizičko hemijske karakteristike kao i realni uzorak štampanog tonera nakon procesa dezintegracije. Nakon obrade literature usvojili su se konstantni optimalni parametri u procesu flotacije, temperatura tečne faze, sadržaj čvrste faze, brzina agitacije, protok vazduha, vreme kondicioniranja, dok su promenljivi parametri u procesu flotacije bili vrsta i koncentracija surfakanata (oleinska kiselina koncentracije od 3,38 10-6 M/dm3 do 2,03 10-4M/dm3 sa ili bez dodatka kalcijum hlorida 3 10-3M/dm3, MIBC koncentracije 1,40 10-5 M/dm3 do 5,60 10-5M/dm3), kao i pH vrednost sredine (od pH 3 do 12). Radi upoređivanja ostvarenih rezultata sa rezultatima iz literature, testiranja i analiziranja kinetičkih modela izdvajanja čestica tonera iz suspenzije papira, definisani su optimalni uslovi pri kojima se ostvaruje dobra selektivnost u procesu flotacije (oleinska kiselina 3,38 10-6 M/dm3 pri pH 9; oleinska kiselina 2,37 10-5 M/dm3 u prisustvu kalcijum hlorida 3 10-3 M/dm3 pri pH 3; MIBC 1,40 10-5 M/dm3 pri pH 7 i 9; MIBC 2,40 10-5 M/dm3 pri pH 9 i 12). Rezultati eksperimentalnih istraživanja izdvajanja čestica tonera iz vodene suspenzije papira pri definisanim optimalnim uslovima, ukazuju na mogućnost primene postupka flotacije radi dobijanja dobre selektivnosti izdvojenog tonera u proizvodu pene (I) i prečišćenih vlakana celuloze u proizvodu otoka (Y) preko 90 %, tako da su kinetički modeli (klasičan model prvog...

Advisors/Committee Members: Antonijević, Milan. 1955-.

Subjects/Keywords: toner particles; cellulose fibers; flotation of toner; oleic acid; calcium chloride; MIBC; kinetic models

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

APA (6^th Edition):

Trumić, M. 1. (2016). Model kinetike izdvajanja čestica tonera iz vodene suspenzije papira. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:11326/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):

Trumić, Maja 1981-. “Model kinetike izdvajanja čestica tonera iz vodene suspenzije papira.” 2016. Thesis, Univerzitet u Beogradu. Accessed March 09, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:11326/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):

Trumić, Maja 1981-. “Model kinetike izdvajanja čestica tonera iz vodene suspenzije papira.” 2016. Web. 09 Mar 2021.

Vancouver:

Trumić M1. Model kinetike izdvajanja čestica tonera iz vodene suspenzije papira. [Internet] [Thesis]. Univerzitet u Beogradu; 2016. [cited 2021 Mar 09]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:11326/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:

Trumić M1. Model kinetike izdvajanja čestica tonera iz vodene suspenzije papira. [Thesis]. Univerzitet u Beogradu; 2016. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:11326/bdef:Content/get

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

Hong Kong University of Science and Technology

27. Dai, Xin CHEM. Biochemical and structural characterization of stable α-helical oligomers of α-synuclein in the presence of oleic acid.

Degree: 2017, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-105583 ; https://doi.org/10.14711/thesis-991012564568903412 ; http://repository.ust.hk/ir/bitstream/1783.1-105583/1/th_redirect.html

► Parkinson’s disease is a debilitating neurodegenerative disease with high morbidity in the aged population. This disease causes movement disorder, anxiety and dementia, bringing tremendous financial… (more)

▼ Parkinson’s disease is a debilitating neurodegenerative disease with high morbidity in the aged population. This disease causes movement disorder, anxiety and dementia, bringing tremendous financial and societal burden on the patients and their family. α-Synuclein is a presynaptic protein that is a major component of the Lewy bodies and Lewy neurites, the pathophysiological hallmark of Parkinson’s disease. The physiological function of α-synuclein is not clear but its association with membrane is believed to play an important role for its function. In the presence of negatively charged membrane, α-synuclein undergoes a structural transition from unfolded state to significant α-helical conformation. Polyunsaturated fatty acids such as arachidonic acid and docosahexaenoic acid also cause α-helical conformational change in α-synuclein but are believed to accelerate its aggregation. Up to date, the stably folded α-synuclein, which is believed crucial for its physiological function, remains elusive. In the present work, we find oleic acid, one of the most abundant unsaturated fatty acid in vivo, induces an oligomeric α-helical structure with high stability. This unique stable oligomeric structure differs from the oligomers with a ß-sheet structure, the intermediate of amyloid fibrils. Thioflavin T fluorescence assay and transmission electron microscope shows its high resistance to aggregation. Revealed by circular dichroism titration, native gel electrophoresis and isothermal titration calorimetry, α-synuclein binds oleic acid with high affinity that may maintain the α-helical structure and inhibit the misfolding of protein. A two-step mechanism is found for the α-helical structure transition induced by fatty acid. An entropy-driven, endothermic interaction with the unsaturated fatty acid is found to precede the α-helical structural transition and prepare the protein for its interaction with negatively charged membrane surface. Finally, co-crystallization of α-synuclein with oleic acid was conducted in an attempt to obtain its structure. This ordered oligomeric structure and fibrillization resistance suggests that the stable functional state of α-synuclein may be associated with oleic acid. These findings shed a new light on the native state of α-synuclein and help us understand its disease-related aggregation process.

Subjects/Keywords: Alpha-synuclein ; Nerve tissue proteins ; Oleic acid ; Oligomers ; Parkinson'; s disease

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APA (6^th Edition):

Dai, X. C. (2017). Biochemical and structural characterization of stable α-helical oligomers of α-synuclein in the presence of oleic acid. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-105583 ; https://doi.org/10.14711/thesis-991012564568903412 ; http://repository.ust.hk/ir/bitstream/1783.1-105583/1/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):

Dai, Xin CHEM. “Biochemical and structural characterization of stable α-helical oligomers of α-synuclein in the presence of oleic acid.” 2017. Thesis, Hong Kong University of Science and Technology. Accessed March 09, 2021. http://repository.ust.hk/ir/Record/1783.1-105583 ; https://doi.org/10.14711/thesis-991012564568903412 ; http://repository.ust.hk/ir/bitstream/1783.1-105583/1/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):

Dai, Xin CHEM. “Biochemical and structural characterization of stable α-helical oligomers of α-synuclein in the presence of oleic acid.” 2017. Web. 09 Mar 2021.

Vancouver:

Dai XC. Biochemical and structural characterization of stable α-helical oligomers of α-synuclein in the presence of oleic acid. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2017. [cited 2021 Mar 09]. Available from: http://repository.ust.hk/ir/Record/1783.1-105583 ; https://doi.org/10.14711/thesis-991012564568903412 ; http://repository.ust.hk/ir/bitstream/1783.1-105583/1/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:

Dai XC. Biochemical and structural characterization of stable α-helical oligomers of α-synuclein in the presence of oleic acid. [Thesis]. Hong Kong University of Science and Technology; 2017. Available from: http://repository.ust.hk/ir/Record/1783.1-105583 ; https://doi.org/10.14711/thesis-991012564568903412 ; http://repository.ust.hk/ir/bitstream/1783.1-105583/1/th_redirect.html

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

University of New Mexico

28. Vreeland, Erika. Development of Novel Synthetic Methods for Size-Tunable Synthesis of Superparamagnetic Iron Oxide Nanoparticles.

Degree: Chemical and Biological Engineering, 2014, University of New Mexico

URL: http://hdl.handle.net/1928/24353

► The properties of magnetic nanoparticles vary dramatically with size, so reproducibly controlling size is critical for practical applications. This is particularly true when moving into… (more)

▼ The properties of magnetic nanoparticles vary dramatically with size, so reproducibly controlling size is critical for practical applications. This is particularly true when moving into clinical settings, where regulatory approval requires demonstrated reproducibility in efficacy that can only be achieved with excellent size control. A number of methods for the synthesis of magnetic nanoparticles have been published, although the thermal decomposition of iron(III) precursors in organic solvents has been shown to yield high quality particles with low shape and size dispersity. Currents methods lack reproducibility resulting from non-stoichiometric starting materials, and reliance on reaction parameters, such as temperature ramp rate, that are nearly impossible to replicate between syntheses. Limited control of particle size has been demonstrated, though no truly size-tunable synthetic method has been proposed. Here, we endeavor to remove the sources of reproducibility in the existing methods and achieve size control of synthesized particles while maintaining narrow shape and size dispersity. Further, we endeavor to understand the physical mechanisms by which the control of size is achieved. Here, we detail two alternative approaches to the synthesis of an iron(III) precursor containing a known quantity of iron. These materials are further evaluated for use in the preparation of high quality iron oxide nanoparticles with high magnetic saturation values. Existing synthesis methods are also evaluated, leading to the development of a novel synthetic method that yields tunability of sizes over a broad range with nanometer precision and nearly uniform size and shape dispersity. By manipulating reaction parameters such as temperature and reagent concentration, the kinetics of the reaction can be controlled, revealing new insights into the growth of particles in a highly supersaturated monomer solution. We expect that our approach will resolve the challenges associated with the reproducible synthesis of spherical magnetite nanoparticles with low shape and size dispersity, and provide scalability required to meet commercial demand. Advisors/Committee Members: Atanassov, Plamen, Datye, Abhaya, Adolphi, Natalie, Huber, Dale.

Subjects/Keywords: Magnetite; nanoparticle; iron oleate; iron oxide; wustite; magnetometry; superparamagnetic; oleic acid; thermolysis

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

APA (6^th Edition):

Vreeland, E. (2014). Development of Novel Synthetic Methods for Size-Tunable Synthesis of Superparamagnetic Iron Oxide Nanoparticles. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/24353

Chicago Manual of Style (16^th Edition):

Vreeland, Erika. “Development of Novel Synthetic Methods for Size-Tunable Synthesis of Superparamagnetic Iron Oxide Nanoparticles.” 2014. Doctoral Dissertation, University of New Mexico. Accessed March 09, 2021. http://hdl.handle.net/1928/24353.

MLA Handbook (7^th Edition):

Vreeland, Erika. “Development of Novel Synthetic Methods for Size-Tunable Synthesis of Superparamagnetic Iron Oxide Nanoparticles.” 2014. Web. 09 Mar 2021.

Vancouver:

Vreeland E. Development of Novel Synthetic Methods for Size-Tunable Synthesis of Superparamagnetic Iron Oxide Nanoparticles. [Internet] [Doctoral dissertation]. University of New Mexico; 2014. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/1928/24353.

Council of Science Editors:

Vreeland E. Development of Novel Synthetic Methods for Size-Tunable Synthesis of Superparamagnetic Iron Oxide Nanoparticles. [Doctoral Dissertation]. University of New Mexico; 2014. Available from: http://hdl.handle.net/1928/24353

University of Melbourne

29. Jung, Robert Frederick. Oleic acid adsorption at the goethite-water interface.

Degree: 1976, University of Melbourne

URL: http://hdl.handle.net/11343/39556

► The adsorption of oleate at the goethite-water interface has been studied. In addition, the interactions of oleate at other mineral-water interfaces were considered. Mainly by… (more)

Subjects/Keywords: oleic acid; oleate; goethite-water interface

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

APA (6^th Edition):

Jung, R. F. (1976). Oleic acid adsorption at the goethite-water interface. (Masters Thesis). University of Melbourne. Retrieved from http://hdl.handle.net/11343/39556

Chicago Manual of Style (16^th Edition):

Jung, Robert Frederick. “Oleic acid adsorption at the goethite-water interface.” 1976. Masters Thesis, University of Melbourne. Accessed March 09, 2021. http://hdl.handle.net/11343/39556.

MLA Handbook (7^th Edition):

Jung, Robert Frederick. “Oleic acid adsorption at the goethite-water interface.” 1976. Web. 09 Mar 2021.

Vancouver:

Jung RF. Oleic acid adsorption at the goethite-water interface. [Internet] [Masters thesis]. University of Melbourne; 1976. [cited 2021 Mar 09]. Available from: http://hdl.handle.net/11343/39556.

Council of Science Editors:

Jung RF. Oleic acid adsorption at the goethite-water interface. [Masters Thesis]. University of Melbourne; 1976. Available from: http://hdl.handle.net/11343/39556

University of Kentucky

30. Dube, Raghav M. COLLECTORS FOR ENABLING FLOTATION OF OXIDIZED COAL.

Degree: 2012, University of Kentucky

URL: https://uknowledge.uky.edu/mng_etds/1

► The coalburg seam coal is an example of difficult to float bituminous coal. Laboratory tests conducted on coalburg flotation feed sample revealed recovery values around… (more)

Subjects/Keywords: Oxidized Coal; Coal Flotation; Fatty Acids; Oleic Acid; Ionic Collectors; Mining Engineering

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

APA (6^th Edition):

Dube, R. M. (2012). COLLECTORS FOR ENABLING FLOTATION OF OXIDIZED COAL. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/mng_etds/1

Chicago Manual of Style (16^th Edition):

Dube, Raghav M. “COLLECTORS FOR ENABLING FLOTATION OF OXIDIZED COAL.” 2012. Masters Thesis, University of Kentucky. Accessed March 09, 2021. https://uknowledge.uky.edu/mng_etds/1.

MLA Handbook (7^th Edition):

Dube, Raghav M. “COLLECTORS FOR ENABLING FLOTATION OF OXIDIZED COAL.” 2012. Web. 09 Mar 2021.

Vancouver:

Dube RM. COLLECTORS FOR ENABLING FLOTATION OF OXIDIZED COAL. [Internet] [Masters thesis]. University of Kentucky; 2012. [cited 2021 Mar 09]. Available from: https://uknowledge.uky.edu/mng_etds/1.

Council of Science Editors:

Dube RM. COLLECTORS FOR ENABLING FLOTATION OF OXIDIZED COAL. [Masters Thesis]. University of Kentucky; 2012. Available from: https://uknowledge.uky.edu/mng_etds/1

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Open Access Theses and Dissertations