Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 82 for “"Free fatty acid"”.
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CHARACTERIZING THE ROLE OF FREE FATTY ACID RECEPTORS (FFARs) IN BREAST CANCER CELLS
Characterizing the role of Free Fatty Acid Receptors (FFAR 1, 2 and 3) in Breast cancer cells FFARs have been implicated to play regulatory roles in normal physiological and pathological conditions. Studies in the past have shown onco regulatory roles for these receptors. Our investigation shows, …
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The Free Fatty Acid Receptor GPR40 - expression and role in islet hormone secretion
… it as a receptor for medium- to long-chain free fatty acids (FFAs). With a marked expression in pancreatic beta-cell lines, we expected GPR40 to be involved in FFA-mediated augmentation of insulin release. This was confirmed when we examined the dose-response relationship between FFA …
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The Role of Adipose-Specific Free Fatty Acid Receptor 2 in Obesity and Associated Metabolic Dysfunction
… resistance and general metabolic dysfunction. Free Fatty Acid Receptor 2 (FFA2/GPR43) has emerged as a potential modulator of adipocyte function, inflammation, and metabolism. To investigate the role of FFA2 expressed in the adipose tissue, we generated adipose-specific FFA2 knockout mice …
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Inhibition of Free fatty acid-Induced Insulin Resistance by Rosemary Extract: Investigation of the Mechanisms Involved
Excess of plasma free fatty acids (FFA) are highly associated with insulin resistance and are a major risk factor for the development of type 2 diabetes mellitus. This thesis investigates the effect of rosemary extract and rosemary extract polyphenols carnosic acid (CA), rosmarinic acid (RA) and …
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The role of the free fatty acid, lauric acid, in appetite regulation and its potential as an appetite-suppressant.
… well established that the digestion of fat into free fatty acids is required for these effects to occur. Furthermore, the effects of fatty acids are dependent on their chain length. The research presented in this thesis relates to the effects of fatty acids, particularly lauric acid, on the …
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DEVELOPMENT OF MICROWAVE SPECTROSCOPIC RESONANT SENSOR FOR APPLICATION IN EDIBLE AND WASTE OIL VERIFICATION
… for authentication, and in addition test free fatty acid levels in waste cooking oils, and methanol levels in the oil recovery process. It does so in real time and in a cost-effective manner. Various techniques that have been applied to this so far, have proven to be either too …
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Functional Characterization of Fatty Acyl-Reductase CG17560 in Drosophila Melanogaster
… explored. Use of enzymes from insects, such as fatty-acyl reductases (FARs), has been one such approach. FARs convert fatty acids to equivalent aldehydes and/or alcohols. Aldehydes may serve as precursors for decarbonylation, resulting in hydrocarbon production which could then be purified as …
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Effect of Soybean Maturity on Characteristics of Protein and Other Constituents
… samples were greener in color and higher in free fatty acid content than that from mature ones. Both yield of isolated soy protein and ratio of 7S to 11S protein in immature soybeans were lower than that from mature. During storage, lipoxygenase activity decreased independently of maturation …
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Mechanistic Modeling of Biodiesel Production via Heterogeneous Catalysis
… homogeneous basic catalysis, heterogeneous acid catalysis has been investigated recently due to its ability to convert cheaper but high free fatty acid content oils such as waste vegetable oil while decreasing production cost. In this work, the esterification of free fatty acid over sulfated …
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Biochemical composition of maturing soybean seeds and functional properties of 7S and 11S proteins
… activities were lower in immature seeds, but free fatty acid (FFA) was higher and oil color was greener. During storage for six months, LA decreased and FFA increased at a faster rate in immature soybeans. Both 7S and 11S proteins increased with maturation but the 7S/11S ratio decreased. There …
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Genotypic differences and water stress-induced changes in lipids of maize hybrids
… matter accumulation, and lower total lipid and free fatty acid concentration in the leaves and roots of B73xVA17 and A632xH96 compared to A619xH60, B73xMOl7, and B73xPA91. No differences were apparent in the frea, glycosidic or esterified steryl fractions among hybrids. Distributional patterns …
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The effect of waste cooking oil methanol molar ratio on yield and properties of biodiesel produced in a mini plant
… Biodiesel from WCO are difficult and costly when free fatty acid content more is than 2%. There are some problems of WCO such that it can lead to pollution and health risk. Therefore, this research were carried out to propose a simple small pilot plant to produce biodiesel using WCO and to …
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Circulatory, hormonal, and metabolic effects of arbutamine compared to exercise in persons with known or suspected coronary artery disease
… dopamine, cortisol, insulin, glucagon, glucose, free fatty acids, glycerol, and lactate were collected at baseline, immediate post-stress, and 10, 30, and 60 minutes post-stress. The research hypothesis was rejected. Repeated measures analysis of variance for each measure demonstrated a …
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Functional properties of white maize meal stored under tropical conditions
… On the other hand, lipolysis as measured by free fatty acid contents increased at all storage conditions, with storage temperature having a higher influence than the storage humidity. At constant storage temperature, free fatty acid contents at high humidity were higher than at low humidity. …
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Effect of a co-solvent feedstock on the synthesis of biodiesel via heterogeneous catalysis
… phase feedstock, consisting of soybean oil, free fatty acid, and methanol in a 1:1:1 volume ratio has proven to be successful in all areas of study with the heterogeneous catalyst nickel oxide. Microreactors are being used to improve the efficiency of the production of biodiesel. The smaller …
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Pre-exercise Fueling and Endurance: Effect of a Pre-exercise Almond-raisin Beverage versus a Commercial Sports Beverage on Performance in Trained Male Runners
… during the AR trial, but not the CE trial. Free fatty acid concentrations were significantly higher in the AR trial through 60 min, though the between trials effect did not remain significant through exhaustion and recovery. Serum glucose and lactate concentrations, RER, HR, and RPE were …
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Determination of fatty acid composition of oils by mass spectrometry
The aim of my thesis was the determination of fatty acid content in the oils using mass spectrometry. I investigated the distribution of the fatty acid composition in beard oil, coconut oil, fish oil, palm oil and sunflower oil using GC-MS. Saponification was used as the first step in sample …
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Thermal, oxidative and hydrolytic stability of selected frying shortenings evaluated by new and conventional methods
… analyses were conventional or modified: free fatty acids; polar components; gas chromatograph volatile profiles; viscosity; FoodOil-Sensor; and sensory. Three were new: contact angle; high temperature; and high-temperature gas chromatographic analysis of triglyceride; and polar component …
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Potential anti-oxidant benefits of rosemary extract on fry life response of cottonseed oil
… stability index, peroxide, p-anisidine, free fatty acid, polymer, tocopherols, and color values. All the levels of natural antioxidant, rosemary extract was effective in reducing the break down and the quality of the frying oil during the frying process.
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Lipoprotein Lipase Inhibitor Removal During Ultrafiltration of Renal Failure Patients
… as measured by release of C<sup>14</sup>-labeled free fatty acid from triglyceride, was decreased 8-67% when incubated with uremic plasma as compared to the control plasma (44 mg/dl triglyceride). The inhibition noted prior to hemodialysis did not appear to be alleviated by the dialysis but …
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