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Dissertations / Theses on the topic 'Free Fatty Acids (FFAs)'

Author: Grafiati

Published: 3 June 2025

Last updated: 20 July 2025

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1

Wiesenthal, Stephanie Renée. "The effect of free fatty acids, FFA, on first-pass hepatic insulin extraction in vivo." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ34094.pdf.

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2

Moussaud, Elisabeth. "Nouveaux concepts dans la pharmacologie des récepteurs aux acides gras à chaîne courte FFA2 et FFA3." Thesis, Dijon, 2011. http://www.theses.fr/2011DIJOS014/document.

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Les maladies métaboliques, comme le diabète, la dyslipidémie ou l’obésité, constituent un problème majeur de santé publique dans les pays développés. Ces maladies très répandues restent encore difficiles à traiter malgré une recherche active. Les stratégies thérapeutiques contre ces maladies incluent le développement de nouvelles molécules ciblant les récepteurs aux acides gras, étant donné leur rôle essentiel dans l’homéostasie du métabolisme. C’est dans ce contexte que s’inscrit ce travail portant sur deux récepteurs couplés aux protéines G, les récepteurs aux acides gras à courte chaîne 2 e

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3

Afonso, Marise da Costa Pereira. "Enzymatic biodiesel production from free fatty acids." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/3137.

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Mestrado em Materiais Derivados de Recursos Renováveis<br>O ácido oleico é um co-produto da refinação de óleos alimentares e é removido num passo antecedente à catalise alcalina na produção industrial de biodiesel. Este ácido gordo livre é uma fonte alternativa de biodiesel. Neste trabalho estudou-se a esterificação enzimática do acido oleico com metanol ou etanol. Definiu-se um planeamento experimental 22 para estudar a influência das variáveis razão molar álcool/ácido oleico(R) e concentração de enzima(E), as variáveis dependentes, na percentagem de conversão, a variável independente. As con

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4

Porter, Altic Lucas Eli. "Characterization of the Esterification Reaction in High Free Fatty Acid Oils." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3582.

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Energy and vegetable oil prices have caused many biodiesel producers to turn to waste cooking oils as feedstocks. These oils contain high levels of free fatty acids (FFAs) which make them difficult or impossible to convert to biodiesel by conventional production methods. Esterification is required for ultra-high FFA feedstocks such as Brown Grease. In addition, ultrasonic irradiation has the potential to improve the kinetics of the esterification reaction. 2-level, multi-factor DOE experiments were conducted to characterize the esterification reaction in ultra-high FFA oils as well as determin

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5

Sieberg, Maureen A. "Heritability and development of the free fatty acids and acylglycerideconstituent fatty acids in Vernonia galamensis oil." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280501.

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Since the mid-1970's, there has been active research on the development of Vernonia galamensis (Cass.) Less. as a potential new oilseed crop. Vernolic acid (cis-12:13-epoxy-cis-9-octadecenoic acid) comprises 70--75% of vernonia oil and is chemically reactive, affording it a variety of industrial applications. A concern in the domestication of an oilseed crop is to establish a breeding program to improve oil quality traits. The objectives of this research were to (1) develop a rapid procedure for seed analyses; (2) determine the development of vernonia oil; and (3) estimate the narrow-sense her

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6

Van, Vickle Gregory D. "The effect of free fatty acids on endothelial cells." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4238.

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Thesis (M.S.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Vita. "August 2005" Includes bibliographical references.

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7

Moodaley, Runisha. "Free fatty acid receptor (FFA) and lipid receptor (GPR119) signalling mediates nutrient-sensing in mouse intestine." Thesis, King's College London (University of London), 2018. https://kclpure.kcl.ac.uk/portal/en/theses/free-fatty-acid-receptor-ffa-and-lipid-receptor-gpr119-signalling-mediates-nutrientsensing-in-mouse-intestine(6deac195-861b-4967-b005-20ec150df882).html.

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Medium and long chain fatty acids exhibit affinity for free-fatty acid receptor 1 (FFA1) and 4 (FFA4). FFA1 and FFA4 are expressed in the pancreas with a third lipid G-protein coupled receptor, GPR119, and all three GPCRs are also highly expressed by gastrointestinal (GI) enteroendocrine L cells, which release glucagon-like peptide 1 (GLP-1) and peptide YY (PYY). GLP-1 is a stimulant of insulin secretion postprandially, whereas PYY slows GI motility and reduces food intake. The receptor expression patterns raise these receptors’ potential as targets for anti-diabetic and anti-obesity therapeut

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8

Desbois, Andrew P. "Antibacterial free fatty acids from the marine diatom, Phaeodactylum tricornutum." Thesis, St Andrews, 2008. http://hdl.handle.net/10023/568.

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9

Ghazali, Reem. "Mechanisms into the development of fatty liver disease : role of free fatty acids and alcohol." Thesis, University of Westminster, 2017. https://westminsterresearch.westminster.ac.uk/item/q5vv0/mechanisms-into-the-development-of-fatty-liver-disease-role-of-free-fatty-acids-and-alcohol.

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Background: Alcohol and Free fatty acids such as palmitate are known to promote liver injury. However less mechanistic information is available regarding omega fatty acids ratios with/out alcohol. In healthy populations omega 6/3 ratios are between 1:1 to 4:1, whereas high ratios ( > 15:1) are thought to correlate with the pathogenesis of fatty liver disease. This study aimed to investigate liver lipotoxicity and mitochondrial dysfunction due to imbalanced omega 6/3 ratios alone or in the presence of alcohol. Method: Human hepatoma cell line, VL-17A cells were treated with individual fatty aci

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10

Edwards, Lindsay Martin. "Circulating free fatty acids and skeletal muscle energy metabolism in humans." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.504389.

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11

MAXWELL, BESS DEVERE. "SERUM FREE FATTY ACID CONCENTRATION DURING POST-EXERCISE RECOVERY (INSULIN, HUNGER)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/187956.

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In order to achieve a better understanding of the impact of exercise on the concentration of serum free fatty acids (FFA) during post-exercise recovery, the purposes of this study were: (1) to determine the relationships between exercise intensity, total exercise energy expenditure, and the concentration of serum FFA during post-exercise recovery; (2) to examine the effects of exoge- nous glucose on post-exercise serum FFA and hormones controlling the FFA response; and (3) to examine the impact of acute exercise on hunger. Untrained, 12-h fasted, college-age males performed cycle ergometer ex

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12

Kristinsson, Hjalti. "Effects of Free Fatty Acids on Insulin and Glucagon Secretion : – with special emphasis on the role of Free fatty acid receptor 1." Doctoral thesis, Uppsala universitet, Institutionen för medicinsk cellbiologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-316991.

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Prevalence of type 2 diabetes mellitus (T2DM) is still rising and even so in the juvenile population. Obesity is highly associated with increased risk for developing T2DM. The development has been related to elevated fasting concentrations of the pancreatic islet hormones insulin and glucagon as well as to an increase in plasma lipids that occurs during obesity. Specifically, research has indicated that chronic exposure to high levels of saturated free fatty acids cause dysfunction in islet alpha- and beta-cells. Fatty acids can affect islet cells by various mechanisms one of which is the G-pr

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13

Nicholl, Tessa Anne. "Effect of free fatty acids and dichloroacetic acid on the diabetic isolated working rat heart." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29641.

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It is well established that a cardiomyopathy independent of atherosclerosis develops in both humans and animals with diabetes mellitus. The etiology of diabetic cardiomyopathy is very complex involving many different processes, one of which may be the increased fatty acid utilization, and/or the concomitant decrease in glucose utilization, by the diabetic heart. We compared control and 6-week streptozotocin(STZ)-induced diabetic isolated working rat hearts and were able to demonstrate cardiac dysfunction in the diabetic as assessed by depressed heart rate (HR), heart rate peak systolic pressur

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14

Zhou, Jiarong. "The Control of Hydrolysis in Eliminating FFA from Acidic Oils Using CAL-B Lipase Supported on a 2D/3D Nanocatalyst and in a Membrane Reactor." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38564.

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Biodiesel is the most successful drop-in biofuel used in transportation. It can reduce GHG emissions in transportation by 50 to 90% depending on the type of feedstock used. Waste cooking oils and fats containing free fatty acids (FFA) are less expensive feedstocks for biodiesel production than refined vegetable oils. The major issue that limits the use of these oils as feedstock is the interference of FFAs with widely used base catalyzed reaction processes. The FFAs consume base catalyst, produce water of neutralization and form soaps that create emulsions downstream in the process reducing pr

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15

Riaz, Sajjad Ali. "Evaluation of signalling and phosphorylation responses of the human histamine H₄ receptor (H₄R) and the human free fatty acid receptor 4 (FFA4)." Thesis, University of Leicester, 2016. http://hdl.handle.net/2381/37696.

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The knowledge that G protein-coupled receptors (GPCRs) are regulated by phosphorylation in a process that results in the recruitment of arrestins, leading to receptor desensitisation is now well known. The histamine H₄ receptor (H₄R) and the free fatty acid receptor 4 (FFA4) are family A GPCRs that both have the ability to become phosphorylated in their third intracellular loops and C-terminal tails by kinases found in the cytosolic milieu of the cells and tissues they are expressed in. Investigations into the phosphorylation status of the histamine H4 receptor have revealed a receptor that is

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16

Goh, Tracy T. "The chronic effect of free fatty acids on glucose-stimulated insulin secretion in rats." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0018/MQ46158.pdf.

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17

Tuckey, Donna M. "The Influence of Age and Sterol-Inhibiting Fungicides on the Sterol and Steryl Ester Composition of SIF Sensitive and Tolerant Non-Target Chlorella Species." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/42764.

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1-substituted 1,2,4-triazoles form a class of agricultural chemicals known as sterol-inhibiting fungicides (SIFs). These fungicides function through the inhibition of sterol synthesis, which ultimately affects cell membrane fluidity and permeability. Of the two main types of sterols in plants, free sterols (FSs) are thought to be incorporated into membranes while conjugated sterols such as steryl esters (SEs), hypothetically, regulate homeostasis by inserting or removing FSs from cell membranes under changing environmental conditions. Non-target algae species possess sterol synthesis pathwa

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18

Holthouse, Zoe. "Free fatty acids and energy balance in Sminthopsis crassicaudata : interaction with leptin and uncoupling protein 2 /." Title page and abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09SB/09sbh7582.pdf.

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19

Mai, Knut [Verfasser]. "Endocrine effects of free fatty acids : relevance in the pathogenesis of complex metabolic disorders / Knut Mai." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2012. http://d-nb.info/1028496613/34.

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20

Nugent, Claire. "Effects of free fatty acids and PPAR[gamma] agonists on glucose uptake in 3T3-L1 adipocytes." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619886.

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21

Brian, King Himm Mo. "Biochemical analysis and genetic engineering of oleaginous fungi for the production of eicosapentaenoic acid and free fatty acid derivatives." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263714.

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22

Wuenschel, Jeffrey Carl Jr. "Effects of Feeding Supplemental Eicosapentanoic Acid and Docosahexanoic Acid to Beef Females on Reproductive Responses and Free Fatty Acids." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/34958.

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The objective of this study was to determine the effects of dietary supplementation of eicosapentanoic (EPA) and docosahexanoic acids (DHA) on reproduction in beef females. In experiment 1, cows (n = 31) were individually fed rumen protected fish meal (FM) or no fish meal (C) supplements. Estrus was synchronized and ovulation induced on d 37. Ovarian follicular growth and diameter were determined by ultrasound on d 35 and d 37. Serum progesterone (P4) profiles were analyzed on d 37 through d 52. On d 52 cows were cannulated, primed with estradiol-17β at -240 min, and stimulated to r

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23

DI, MAURO STEFANIA. "Alterazione del miRNoma intracellulare ed extracellulare ed analisi bioinformatica in modelli in vitro di Nafld e di Nash." Doctoral thesis, Università degli studi di Catania, 2017. http://hdl.handle.net/20.500.11769/491019.

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La steatosi epatica non alcolica (Non-alcoholic fatty liver disease NAFLD) interessa circa il 20-30% della popolazione generale e rappresenta la malattia epatica cronica più comune nei paesi industrializzati. La NAFLD presenta un potenziale evolutivo, attraverso la fase infiammatoria denominata NASH (Non-alcoholic Steato-Hepatitis), verso la fibrosi, la cirrosi ed in alcuni casi l'epatocarcinoma. L'identificazione dei pazienti a rischio evolutivo da NAFLD a NASH è una delle più importanti sfide in epatologia. La complessità molecolare delle due condizioni patologiche in vivo rende necessario l

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24

Leone, Francesca Marie. "Placental restriction impairs glucose homeostasis in the adult rat, independently of adiposity and circulating free fatty acids /." Title page and abstract only, 2003. http://web4.library.adelaide.edu.au/theses/09HS/09hsl583.pdf.

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25

Ward, Kenya L. "The effects of free fatty acids and adipokines on pancreatic beta-cell gene expression, viability and function." Thesis, University of Wolverhampton, 2007. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441876.

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26

Catherman, Colin M. "Short and Long Chain Free Fatty Acids Differentially Regulate Glucagon-like Peptide-1 and Peptide YY Transcript Levels in Enteroendocrine Cells (STC-1)." VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/4797.

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The regulation of glucagon-like peptide-1 and peptide YY hormone levels are regulated based on different influential factors, but primarily levels are dependent upon ingested food content. As meals today become more fat-enriched, there is greater requirement for evaluation of these hormones that regulate insulin and satiety levels within the body. We have shown that the gene expression transcript production of glucagon-like peptide-1 and peptide YY are modulated by different concentrations, and times of short-chain fatty acids and long-chain fatty acids. Although the peptide hormone levels

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27

Scheuermann-Freestone, Michaela. "Myocardial and skeletal muscle energymetabolism and function in cardiovascular disease : impact of increased circulating concentrations of free fatty acids." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424754.

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28

Riffelmacher, Thomas. "Autophagy-dependent generation of free fatty acids is essential for normal neutrophil differentiation by guiding an energy-metabolic switch." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:52c98f4d-c2a0-43b0-be5b-91e51d52d966.

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Neutrophils are critical and short lived mediators of innate immunity that require constant replenishment. Their differentiation in the bone marrow requires extensive cytoplasmic and nuclear remodeling, but the processes governing these energy-consuming changes are unknown. While previous studies show that autophagy is required for differentiation of other blood cell lineages, its function during granulopoiesis has remained elusive. Autophagy was described as a critical process in HSC differentiation and in memory- and regulatory T cells, where it prevents excessive glycolysis and maintains li

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29

Wang, Hong. "The expression and antilipolytic role of phosphodiesterase 4 in rat adipocytes in vitro." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1124189520.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xvi, 145 p.; also includes graphics (some col.). Includes bibliographical references (p. 121-145). Available online via OhioLINK's ETD Center

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[UNESP], Ingrid Felicidade. "Avaliação da expressão de genes-alvo do receptor ativado por proliferadores do peroxissoma alfa (PPaRα), em indivíduos obesos e não-obesos, em situações de jejum". Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/95890.

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Made available in DSpace on 2014-06-11T19:27:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-08-26Bitstream added on 2014-06-13T18:56:51Z : No. of bitstreams: 1 felicidade_i_me_botfm.pdf: 442429 bytes, checksum: bbae716d0f4846cf367d5ed80870142c (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Em diversas partes do mundo, a prevalência da obesidade tem aumentado rapidamente. A Organização Mundial da Saúde estima que, em 2015, haverá 700 milhões de pessoas obesas (índice de massa co

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31

Olsson, Jan. "Delivery of TypeIII Secreted Toxins by Yersinia pseudotuberculosis : the Role of LcrV, YopD, and Free Lipids in the Translocation Process." Doctoral thesis, Umeå universitet, Molekylärbiologi (Teknat- och Medfak), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-800.

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Bacteria that infect humans and animals face a hard combat with the host´s immune system and in order to establish infection, pathogenic bacteria has evolved mechanisms to avoid being cleared from the host tissue. Many Gram-negatives carry a Type 3 secretion (T3S) system that is used to deliver effector proteins (toxins) into host cells. The toxins exhibit a broad range of intra cellular effects that has in common that they increase the chances of the bacteria to establish infection, multiply in infected tissue or spread to other tissues or hosts. The object of this study was to analyse the me

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32

Di, Mauro Stefania. "Alterazione del miRNoma intracellulare ed extracellulare ed analisi bioinformatica in modelli in vitro di Nafld e di Nash." Doctoral thesis, Università di Catania, 2017. http://hdl.handle.net/10761/3842.

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La steatosi epatica non alcolica (Non-alcoholic fatty liver disease NAFLD) interessa circa il 20-30% della popolazione generale e rappresenta la malattia epatica cronica più comune nei paesi industrializzati. La NAFLD presenta un potenziale evolutivo, attraverso la fase infiammatoria denominata NASH (Non-alcoholic Steato-Hepatitis), verso la fibrosi, la cirrosi ed in alcuni casi l'epatocarcinoma. L'identificazione dei pazienti a rischio evolutivo da NAFLD a NASH è una delle più importanti sfide in epatologia. La complessità molecolare delle due condizioni patologiche in vivo rende necessario l

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33

Peng, Baoxiang [Verfasser], Johannes A. [Akademischer Betreuer] Lercher, and Thomas [Akademischer Betreuer] Brück. "Transformation of triglycerides and fatty acids into biofuels with sulfur-free catalysts / Baoxiang Peng. Gutachter: Thomas Brück. Betreuer: Johannes A. Lercher." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1021422274/34.

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Peng, Baoxiang [Verfasser], Johannes A. Akademischer Betreuer] Lercher, and Thomas [Akademischer Betreuer] [Brück. "Transformation of triglycerides and fatty acids into biofuels with sulfur-free catalysts / Baoxiang Peng. Gutachter: Thomas Brück. Betreuer: Johannes A. Lercher." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1021422274/34.

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Peng, Baoxiang [Verfasser], Johannes [Akademischer Betreuer] Lercher, and Thomas [Akademischer Betreuer] Brück. "Transformation of triglycerides and fatty acids into biofuels with sulfur-free catalysts / Baoxiang Peng. Gutachter: Thomas Brück. Betreuer: Johannes A. Lercher." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1021422274/34.

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Al-Alawi, Ahmed Ali. "Novel approaches to automated quality control analyses of edible oils by Fourier transform infrared spectroscopy : determination of free fatty acid and moisture content." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100311.

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Three new quantitative Fourier transform infrared (FTIR) spectroscopic methods were developed for the analysis of edible oils: two procedures to measure free fatty acids (FFA) and one to measure moisture (H2O), the latter two methods ultimately being automated and implemented on an auto-sampler equipped FTIR spectrometer. The methods developed for FFA determination both convert FFAs to their carboxylate salts by means of acid/base reaction without causing oil saponification, one approach using 1-propanol, an oil-miscible solvent, and the other using methanol, an oil-immiscible solvent into whi

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Patient, Guillaume. "Étude in silico de la structure et des interactions protéine-ligand de FFA4 à des fins de Drug Design." Electronic Thesis or Diss., Université de Lille (2022-....), 2024. http://www.theses.fr/2024ULILS073.

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Les récepteurs couplés aux protéines G (GPCR) sont des cibles médicamenteuses importantes, représentant 35 % du total des cibles médicamenteuses approuvées. Ces récepteurs sont des protéines transmembranaires impliquées dans la signalisation cellulaire de stimuli externes (hormones, neurotransmetteurs, ions...) et induisent l'activation de la protéine G associée via l'échange GDP/GTP. Au cours des 20 dernières années, des RCPG désorphanisés ont été mis en évidence comme étant actifs dans le métabolisme des lipides : des études ont montré que la modulation de l'activité du GPR 120 (FFA4), princ

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Grünberger, Karin Susanne [Verfasser], and Claus [Akademischer Betreuer] Hellerbrand. "Effects of stimulation with free fatty acids on proliferation and migration of HCC cells in vitro / Karin Susanne Grünberger. Betreuer: Claus Hellerbrand." Regensburg : Universitätsbibliothek Regensburg, 2015. http://d-nb.info/1071713337/34.

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39

Deresz, Fermino. "Effect of different cooling systems on concentrations of certain hormones and free fatty acids at varying times during lactation of Holstein cows." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184260.

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In experiment 1, fourteen cows were blocked for milk yields and balanced for days in lactation. Treatments were: (1) Air conditioning (AC), five cows; (2) Evaporative cooling (EC), four cows; and (3) Conventional shade (S), five cows. Sequential samples were taken for 8 h at 12 min intervals starting at 2200 and then at hourly intervals for 13 h. Serum was assayed for insulin, thyroxine (T4), triiodothyronine (T3) and cortisol using a double-antibody radioimmunoassay procedure. Free fatty acids (FFA) were determined in serum by an enzymatic method. In experiment 2, ten cows were blocked for mi

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40

Mogongoa, Lebogang Francis. "The effect of short-chain fatty acids on some haemostatic risk markers in westernised black men." Thesis, Bloemfontein : Central University of Technology, Free State, 2007. http://hdl.handle.net/11462/80.

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Thesis (M. Tech.) -- Central University of Technology, Free State, 2007<br>Cerebrovascular disease and coronary heart disease (CHD) are of the most important causes of morbidity and mortality amongst South Africans. The risk factor prevalence for stroke and CHD becomes altered by changes in lifestyle, including diet. In general it is suggested that lifestyle management should be the first choice when having to treat patients with increased cardiovascular risk. The prudent low-fat, high-fibre diet is regarded as an apparently healthy diet. It is suspected that this diet is effective for the

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Ross, Amy Patricia. "Effects of a High Fructose Diet on Physiology and Cognition in Male Sprague-Dawley Rats." Digital Archive @ GSU, 2008. http://digitalarchive.gsu.edu/psych_theses/45.

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Fructose consumption has increased exponentially during the past four decades. The physiological effects of a high fructose diet include obesity and insulin resistance. In animal models, the effects of a high fructose diet on fat distribution are inconclusive in that some studies find increases in body mass and lipids while others find no effect. Recent findings indicate that a high fructose diet causes hippocampal insulin resistance in hamsters, raising the possibility that the diet causes impairments in cognition. The following experiments tested the hypotheses that a high fructose diet alte

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Gomes, Paula Alexandra Cardoso. "Evolução das características físico-químicas e da maturação em Queijo Amarelo e Queijo Picante da Beira Baixa DOP: composição, fracções azotadas e ácidos gordos livres." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/4112.

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Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia<br>This work was carried out to monitor the evolution of the physicochemical characteristics of cheese represent two of the Protected Designation of Origin (PDO) from “Beira Baixa” cheese, the Amarelo cheese and Picante cheese, produced in a plant recognized its production. This assessment was complemented by studying the evolution of some parameters characterizing the maturation. In addition to the assessment of physical and chemical characteristics of the cheese used in the definition contained in the regulations of the PDO,

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França, Mírian Cotrim. "Cloreto de cobre como novo catalisador na esterificação de ácidos graxos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-24062013-163216/.

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Para uma produção eficiente e economicamente viável de ésteres é necessária a utilização de catalisadores durante o processo, uma vez que a transesterificação e a esterificação são reações de equilíbrio, sendo necessário deslocar o equilíbrio de reação na direção desejada. Nesse trabalho, ésteres metílicos e etílicos de ácidos graxos de cadeia longa foram produzidos usando cloretos de cobre como catalisadores. Para definir a melhor condição reacional, foram estudadas três diferentes razões em massa de AGLs de dendê/ metanol (ou etanol) / catalisador. Definida a melhor condição reacional, fora

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Mahli, Abdo [Verfasser], Sigurd [Akademischer Betreuer] Elz, and Claus [Akademischer Betreuer] Hellerbrand. "Novel in vitro model for combined effects of alcohol and free fatty acids on hepatocellular lipid accumulation and inflammation / Abdo Mahli. Betreuer: Sigurd Elz ; Claus Hellerbrand." Regensburg : Universitätsbibliothek Regensburg, 2013. http://d-nb.info/1068055669/34.

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Lima, Larissa Pinto de. "ProduÃÃo de Ãcidos Graxos Assistida por Ultrassom Visando Ã ProduÃÃo de Biodiesel." Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=4968.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>A produÃÃo de biodiesel por reaÃÃo de transesterificaÃÃo Ã realizada geralmente usando Ãleos com baixo Ãndice de acidez, restringindo o mÃtodo ao uso de uma pequena variedade de Ãleos vegetais. MatÃrias primas com elevado Ãndice de acidez podem ser utilizadas como rota alternativa para a produÃÃo de biodiesel. O objetivo desta dissertaÃÃo foi produzir Ãcidos graxos a partir de Ãleos residuais (com percentual de Ãcidos graxos superior a 1%) por saponificaÃÃo assistida por ultrassom, seguida por hidrÃlise Ãcida. A aplicaÃÃo de onda

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Nacir, Houda. "Nature et origine des lipides des plastoglobules." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0080/document.

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Les plastoglobules sont de petites particules localisées au niveau des plastes qui stockent des lipides neutres tels que les triacylglycérols (TAG), du tocophérol et des caroténoïdes. Leurs nombre et diamètre changent en fonction de l’espèce de plante, du type de plaste, du stade de développement et des conditions environnementales. Dans les chloroplastes, les plastoglobules sont liés physiquement aux thylacoïdes par une monocouche de lipides polaires en continuité avec le feuillet externe des thylacoïdes. Ceci suggère qu’il y a une dynamique d’échange de métabolites tels que les lipides entre

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Purushothaman, Nair Remya. "Improved wastewater management with detailed characterisation of potential organisms to synthesise value-added products." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/227328/1/Remya_Purushothaman%20Nair_Thesis.pdf.

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The use of low-value organic residues as a component of microbial growth media has potential to lower input costs for industrial fermentation. Wastewaters generated from meat rendering plants are enriched with high levels of organic matter and nutrients. The thesis focused on understanding the significance of using red meat processing wastewater as a microbial growth substrate for nutrient recovery, via the production of value-added products such as fatty acids, amino acids, and lipases. The study included detailed phenotypic and genotypic characterisation of five uncharacterised Yarrowia lipo

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Dumas, Marie-Eve. "Mécanismes de résistance à l’insuline par les acides gras libres dans les podocytes rénaux menant à la néphropathie diabétique." Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11787.

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La néphropathie diabétique (ND), principale cause d’insuffisance rénale chronique, est caractérisée par une dysfonction des podocytes rénaux. Cette dysfonction podocytaire peut être causée par une résistance à l’insuline induite suite à l’exposition des podocytes aux acides gras libres (AGL). L’un des mécanismes par lequel les AGL réduisent les actions de l’insuline serait l’activation de la voie de Mammalian target of rapamycin (mTOR). Les objectifs sont de caractériser les mécanismes de résistance à l’insuline par les AGL dans les podocytes et d’étudier l’implication de la

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Sa, Leticia Andrade de. "Desacidificação de oleo de soja por extração liquido-liquido." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/255044.

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Orientador: Antonio Jose de Almeida Meirelles, Christianne Elisabete da Costa Rodrigues<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-08T12:11:40Z (GMT). No. of bitstreams: 1 Sa_LeticiaAndradede_M.pdf: 1111674 bytes, checksum: 4740d77e5f31018175a3214d8d9ef4da (MD5) Previous issue date: 2007<br>Resumo: O processo de desacidificação do óleo de soja por extração líquido-líquido (ELL) foi estudado em uma coluna de discos rotativos perfurados (PRDC), operada de modo contínuo e contra-corrente. Foram estud

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Grabauskas, Daniel. "Triagem de métodos de purificação de óleos com acidez elevada para produção de biodiesel." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/97/97137/tde-14092016-171925/.

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O presente estudo teve como objetivo selecionar procedimentos de purificação de óleos vegetais, com enfoque na desacidificação, comparando a eficiência de métodos de refino alternativos (adsorção e extração liquido-liquido) com o convencional (alcalino). Para tanto, foram utilizados óleos com baixo impacto na cadeia alimentícia, como óleo de andíroba e óleo de macaúba, visando contribuir para a ampliação de matérias-primas lipídicas na produção de biodiesel. A triagem do método de purificação mais adequado foi baseada na redução de ácidos graxos livres, na quantidade recuperada de matéria-prim

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