Fatty acids in forages. II. In vitro ruminal biohydrogenation of linolenic and linoleic acids from timothy
نویسندگان
چکیده
منابع مشابه
Fatty acids in forages. II. In vitro ruminal biohydrogenation of linolenic and linoleic acids from timothy
1Département des sciences animales, Faculté des sciences de l’agriculture et de l’alimentation, Université Laval, Sainte-Foy, Québec, Canada G1K 7P4; 2Agriculture and Agri-Food Canada, Soils and Crops Research and Development Centre, Sainte-Foy, Quebec, Canada G1V 2J3 (e-mail: [email protected]); and 3Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre, Lennoxvi...
متن کاملEffects of pH and concentrations of linoleic and linolenic acids on extent and intermediates of ruminal biohydrogenation in vitro.
Three experiments were conducted by in vitro incubations in ruminal fluid to investigate the effects of pH and amounts of linoleic and linolenic acids on the extent of their biohydrogenation, the proportions of conjugated linoleic acid (CLA) and trans-C18:1 as intermediates, and the ratio trans-10:trans-11 intermediates. The effects of pH and amount of linoleic acid were investigated in kinetic...
متن کاملRates and efficiencies of reactions of ruminal biohydrogenation of linoleic acid according to pH and polyunsaturated fatty acids concentrations.
Data from a previous study about the effects of pH and of linolenic acid (C18:3n-3) and linoleic acid (C18:2n-6) concentrations on C18:2n-6 biohydrogenation in ruminal cultures were used to calculate the rates and efficiencies of the three reactions of C18:2n-6 biohydrogenation (isomerisation of C18:2n-6 to CLA; reduction of CLA to trans-octadecenoic acids; reduction of trans-octadecenoic acids...
متن کاملIn vivo oxidation of carboxyl-labelled cyclic fatty acids formed from linoleic and linolenic acids in the rat.
Cyclic fatty acid monomers (CFAM), which occur from the intramolecular cyclisation of linoleic and linolenic acids, are subsequently present in some edible oils and are suspected to induce metabolic disorders. One may suggest that the presence of a ring would alter the ability of the organism to oxidise these molecules. In order to test this hypothesis, we assessed the oxidative metabolism of C...
متن کاملMetabolism of conjugated linoleic acids and 18 : 1 fatty acids by ruminal bacteria: products and mechanisms.
Cultures of ruminal bacteria known to metabolize unsaturated fatty acids were grown in medium containing 50 microg ml(-1) of geometric and positional isomers of conjugated linoleic acid (CLA) or 18 : 1 fatty acids and 37.4 % deuterium oxide to investigate the mechanisms responsible for fatty acid metabolism. Butyrivibrio fibrisolvens JW11 converted cis-9,trans-11-18 : 2 and trans-9,trans-11-18 ...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 2003
ISSN: 0008-3984,1918-1825
DOI: 10.4141/a02-099