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Dissertations / Theses on the topic 'Linoleate'

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1

Belza, Krystian G. "The metabolism of [1-¹§4C] linoleate in linoleate deficient rats." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29292.pdf.

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2

Ma, Tiezheng. "Oxidation Kinetics of Methyl Linoleate and α-Linolenate in Bulk and Oil-in-water Emulsion Systems". Kyoto University, 2014. http://hdl.handle.net/2433/188751.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第18313号<br>農博第2038号<br>新制||農||1020(附属図書館)<br>学位論文||H26||N4820(農学部図書室)<br>31171<br>京都大学大学院農学研究科食品生物科学専攻<br>(主査)教授 安達 修二, 教授 河田 照雄, 教授 保川 清<br>学位規則第4条第1項該当
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3

Trotti, Domenic. "Linoleate deficiency in rats, measurement of carbon recycling from linoleate and a comparison with essential fatty acid deficiency." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0013/MQ40827.pdf.

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4

Le, Maux Solène. "β-lactoglobulin/linoleate complexes : binding properties and biological functions". Rennes, Agrocampus Ouest, 2013. http://www.theses.fr/2013NSARB238.

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Les interactions entre nutriments dans les produits alimentaires peuvent affecter leur bioaccessibilité. La β-lactoglobuline (βlg), protéine majeure du lactosérum, est connue pour lier des ligands hydrophobes tels que des acides gras (AG). Très sensible aux conditions industrielles, la βlg est souvent sous formes non natives dans les aliments transformés. Notre hypothèse est que les changements structuraux au niveau de la protéine modifient l'affinité pour les AG et par conséquent les propriétés biologiques des complexes AG/protéine. L'objectif était d'étudier l'interaction de la βlg bovine so
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5

Cazzolli, Rosanna St Vincents Campus UNSW. "The effects of linoleate on insulin action in skeletal muscle cells." Awarded by:University of New South Wales. St Vincents Campus, 2005. http://handle.unsw.edu.au/1959.4/22925.

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Emerging evidence suggests that an important mechanism for the negative feedback control of insulin signalling involves the inhibition of tyrosine phosphorylation of IRS-1 by its prior serine/threonine (ser/thr) phosphorylation. IRS-1 ser/thr phosphorylation has been linked to the dissociation of IRS-1 from the insulin receptor and PI3K, and its degradation via a proteasome-dependent pathway. Studies in animal models have shown that increases in plasma free fatty acids (FFAs) are associated with reduced IRS-1-signalling, and so it has been postulated that elevated FFA cause insulin resistance
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6

Wang, Ting. "Monitoring a natural autoxidation process of methyl linoleate by using GC-MS." Scholarly Commons, 2003. https://scholarlycommons.pacific.edu/uop_etds/586.

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The methyl ester of an unsaturated fatty acid, methyllinoleate was reacted with oxygen in a pressurized system at a controlled temperature. A natural autoxidation of methyl linoleate was observed without the addition of an initiating reagent. This autoxidation process could be used to mimic the course of lipid peroxidation, which is the major cause ofradical damage to living cells. The technology of GC-MS was employed to monitor the autoxidation of methyllinoleate. Eight of the autoxidation products separated by GC column were identified by interpreting the corresponding EI ion mass spectra. T
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7

Wang, Ting. "Monitoring a natural autoxidation process of methyl linoleate by using GC-MS : a thesis." Scholarly Commons, 2001. https://scholarlycommons.pacific.edu/uop_etds/586.

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The methyl ester of an unsaturated fatty acid, methyllinoleate was reacted with oxygen in a pressurized system at a controlled temperature. A natural autoxidation of methyl linoleate was observed without the addition of an initiating reagent. This autoxidation process could be used to mimic the course of lipid peroxidation, which is the major cause ofradical damage to living cells. The technology of GC-MS was employed to monitor the autoxidation of methyllinoleate. Eight of the autoxidation products separated by GC column were identified by interpreting the corresponding EI ion mass spectra. T
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8

Scholten, Matthew John. "Enzymatic and chemical modification of fatty acid methyl esters: enzymatic catalysis of methyl linoleate using soybean lipoxygenase and chemical catalysis of methyl oleate Using Hypobromination." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/735.

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Vegetable oils are a cheap and abundant chemical feedstock which can be readily broken down into fatty acid methyl esters (FAMEs) by transesterification using methanol and a base catalyst. These FAMEs contain reactive unsaturated double bonds which can be targeted for modification. In this study, enzymatic and chemical modifications of the unsaturated double bonds of FAMEs are explored with the goal of producing higher value products. Specifically the enzymatic modification of methyl linoleate using soybean lipoxygenase and the chemical modification of methyl oleate using hypobromantion are st
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9

Hoffmann, Inga. "Discovery of Novel Fatty Acid Dioxygenases and Cytochromes P450 : Mechanisms of Oxylipin Biosynthesis in Pathogenic Fungi." Doctoral thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-206199.

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Dioxygenase-cytochrome P450 (DOX-CYP) fusion enzymes are present in diverse human and plant pathogenic fungi. They oxygenate fatty acids to lipid mediators which have regula­tory functions in fungal development and toxin production. These enzymes catalyze the for­mation of fatty acid hy­droperoxides which are subsequently converted by the P450 activities or reduced to the corresponding alcohols. The N-terminal DOX domains show catalytic and structural homology to mammalian cyclooxygenases, which belong to the most thoroughly studied human enzymes. 7,8-Linoleate diol synthase (LDS) of the plant
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10

Garscha, Ulrike. "Catalytic and Structural Properties of Heme-containing Fatty Acid Dioxygenases : Similarities of Fungal Dioxygenases and Cyclooxygenases." Doctoral thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-108770.

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7,8-Linoleate diol synthase (7,8-LDS) of the take-all pathogen of wheat, Gaeumannomyces graminis, converts linoleic acid to 8R-hydroperoxyoctadecadienoic acid (8-HPODE) by 8-dioxygenase activity (8-DOX), and further isomerizes the hydroperoxide to 7S,8S-dihydroxyoctadecadienoic acid (7,8-DiHODE) by hydroperoxide isomerase activity. Sequence alignment showed homology to prostaglandin H synthase (PGHS), and both enzymes share structural and catalytic properties. The 8-DOX of 7,8-LDS was successfully expressed in Pichia pastoris and in insect cells (Sf21). Site-directed mutagenesis confirmed His3
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11

Jernerén, Fredrik. "Novel Fatty Acid Dioxygenases of Human and Plant Pathogenic Fungi : Studies by Gene Deletion and Expression." Doctoral thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-143065.

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The dioxygenase-cytochrome P450 fusion proteins (DOX-CYP) comprise a heme-containing enzyme family that shares structural and catalytic properties with mammalian prostaglandin H (PGH) synthases. 7,8-Linoleate diol synthase (7,8-LDS) of Gaeumannomyces graminis was first characterized, and DOX-CYP enzymes are of mechanistic and biological interest. The growing number of fungal genome sequences has revealed DOX-CYP homologues in medically and economically important species. The aim of this thesis was to identify novel members of the DOX-CYP fusion protein family. The devastating rice pathogen Mag
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12

Baumgartner, Raechel Mae. "Tocopherol content of soybean lines with mid-oleate and 1%-linolenate." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1473179.

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13

Lafhaj, Zineb. "Augmentation du contraste de séparation des minéraux calciques semisolubles à l’aide de combinaisons de réactifs carboxyliques et non-ionique." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0052.

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La valorisation des minéraux calciques est un problème mondial. La flottation est une technique utilisée pour séparer ces minéraux puisqu’elle joue sur leurs propriétés superficielles. Cependant, c’est un défi scientifique important puisque les propriétés de surface des minéraux calciques sont très proches. Les difficultés de séparation de ces derniers sont donc dues, aux similitudes entre leurs propriétés chimiques de surface, mais aussi leurs propriétés électrocinétiques et leur stabilité en milieu aqueux. L’application des résultats de recherche fondamentale porte sur les minéraux purs dont
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14

Jara, Morales Cecilia Belén. "Efecto de extractos de palto sobre la estabilidad oxidativa de linoleato de metilo." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/145866.

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Tesis presentada para optar al Título de Ingeniero en Alimentos y Grado de Magíster en Alimentos, mención en Gestión, Calidad e Inocuidad de Alimentos<br>Las materias grasas, en general los aceites que contienen ácidos grasos poliinsaturados son susceptibles a sufrir deterioro oxidativo cuando se someten a procesos térmicos, alterando las propiedades organolépticas y nutricionales de los aceites. Para retardar el deterioro oxidativo se ha recurrido a la utilización de antioxidantes sintéticos, sin embargo, estos han sido cuestionados por sus posibles efectos adversos en la salud a altas concen
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15

Gerde, Jose Arnaldo. "Frying performance of soybean oils with reduced linolenate content and methods to monitor deteriorative changes." [Ames, Iowa : Iowa State University], 2006.

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16

Palma, Astudillo Manuel Jesús. "Cinética y mecanismo de liberación de flavonoides desde micropartículas y su efecto sobre la estabilidad oxidativa en linoleato de metilo." Tesis, Universidad de Chile, 2014. http://repositorio.uchile.cl/handle/2250/136855.

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Doctor en Nutrición y Alimentos<br>La oxidación lipídica es una de las principales reacciones que afectan la calidad de los aceites, transformándose en uno de los principales problemas para la industria alimentaria por la aparición de olores y sabores indeseables. Para la protección de la oxidación lipídica, se pueden utilizar micropartículas de flavonoides de liberación controlada para extender la vida útil de las materias grasas y disminuir la utilización inefectiva del antioxidante natural. De acuerdo a estos antecedentes el objetivo de este estudio fue estudiar la cinética y mecanismo de
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17

Divílek, Petr. "Analýza reologických vlastností rostlinných olejů a jejich složek." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220996.

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This Master’s thesis is dealing with theoretical analysis of vegetable, mineral oils and synthetic fluids, and with measuring of density and viscosity of selected samples of electric insulating fluids. The main part of the thesis is focused on vegetable oils and their elements called fatty acids. Those are more detail described in separate capitols. In those capitols is described their utilization in engineering practice with focus on energetics, where vegetable oils are used in larger scale. In experimental part of the work is measurement of density and dynamic viscosity. Viscosity was measur
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18

Krogull, Mary Kathryn. "Oxidation of tryptophan catalyzed by methyl linoleate." 1985. http://catalog.hathitrust.org/api/volumes/oclc/13292690.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1985.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 74-81).
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19

Thompson, Michael George. "Hematin-catalyzed oxidation of linoleate as influenced by [beta]-casein." 1985. http://catalog.hathitrust.org/api/volumes/oclc/12812541.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1985.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 76-88).
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20

Chen, Jung-Fu, and 陳仲富. "Interaction between Methyl Conjugated Linoleate and Model Lipids during Heating and Illumination." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/39987982848069129602.

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碩士<br>輔仁大學<br>食品營養學系<br>87<br>Conjugated linoleic acid (CLA) belongs to a group of octadecadienoic acids that contain two conjugated double bonds. CLA is present in meats and dairy products of ruminants origin, and is stable under various processing and storage conditions. Several studies have shown that CLA possesses anticarcinogenic properties, however, the mechanism is still unclear. Also, the antioxidant activity of CLA remains controversial. Thus, it is necessary to study the antioxidant activity of CLA towards the various model lipids. In addition, the interaction between CLA and model l
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21

LIN, WANG-YI, and 林旺熠. "Studies on the changes in physiochemical, conformational and immunochemical properties of ovalbumin in the reaction with oxidizing methyl linoleate." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/91649241114965815365.

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22

Higdon, Jane V. "The effect of oleate, linoleate, and EPA/DHA supplementation of postmenopausal women on in vivo lipid peroxidation and LDL susceptibility to ex vivo oxidation." Thesis, 1999. http://hdl.handle.net/1957/26547.

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While replacement of dietary saturated fat with unsaturated fat has been advocated to reduce cardiovascular disease risk, diets high in polyunsaturated fatty acids (PUFA) could increase low density lipoprotein (LDL) susceptibility to oxidation, potentially contributing to the pathology of atherosclerosis. To assess in vivo lipid peroxidation and susceptibility, of LDL surface and core lipids to ex vivo oxidation, in women consuming increased amounts of specific unsaturated fatty acids, 15 postmenopausal women took daily supplements of sunflower oil providing 12.3 g/day of oleate, safflower oil
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23

Liou, Jeh-Jer, and 劉睿哲. "Effects of dihomo r- linolenate,arachidonate and prostaglandins." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/80976761337505311380.

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24

Hirschfeld-Kroll, Olga [Verfasser]. "Die Wirkung von Palmitat und Linoleat auf die Genexpression in humanen Fibroblasten, Hepatocyten, Endothel- und glatten Gefäßmuskelzellen aus Koronararterien / vorgelegt von Olga Hirschfeld-Kroll, geb. Hirschfeld." 2005. http://d-nb.info/975501461/34.

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