Hydrogenation of linoleic acid by a rumen spirochete.
نویسندگان
چکیده
Borrelia sp. B(2)5, when grown in a medium containing [1-(14)C] linoleic acid in an atmosphere of CO(2), was found to hydrogenate linoleic acid to trans-11-octadecenoic acid.
منابع مشابه
The hydrogenation of y - linolenic acid by pure cultures of two rumen bacteria
Two species of rumen bacteria that have been previously shown to partially hydrogenate a-linolenic acid have been examined for their ability to hydrogenate y-linolenic acid. Free y-linolenic acid is hydrogenated in vitro to stearic acid by a rumen Fusocillus sp. (N.C.I.B. 11026), but only to cis,trans-octadec-6,1 1-enoic acid by a Butyrivibrio sp. The sequential hydrogenations are preceded by a...
متن کاملBiohydrogenation of Unsaturated Fatty Acids by Rumen Bacteria.
Polan, C. E. (North Carolina State of the University of North Carolina, Raleigh), J. J. McNeill, and S. B. Tove. Biohydrogenation of unsaturated fatty acids by rumen bacteria. J. Bacteriol. 88:1056-1064. 1964.-A simple, rapid, specific assay for the biohydrogenation of unsaturated fatty acids was developed. With this assay, it was shown that washed suspensions of mixed rumen bacteria hydrogenat...
متن کاملThe hydrogenation of the series of methylene-interrupted cis,cis-octadecadienoic acids by pure cultures of six rumen bacteria.
The hydrogenation of all the methylene-interrupted cis,cis-octadecadienoic acids was examined using pure cultures of six rumen bacteria able to hydrogenate linoleic acid to stearic acid or its immediate precursor, trans-11-octadecenoic acid, after first conjugating the linoleic acid to cis,trans-9,11-octadecadienoic acid. Only the delta 14-cis,17-cis-isomer was not hydrogenated by at least one ...
متن کاملBiosynthesis of Conjugated Linoleic Acid and Its Incorporation into Ruminant’s Products**
Bio-hydrogenation of C18-unsaturated fatty acids released from the hydrolysis of dietary lipids in the rumen, in general, occurs rapidly but the range of hydrogenation is quite large, depending on the degree of unsaturation of fatty acids, the configuration of unsaturated fatty acids, microbial type and the experimental condition. Conjugated linoleic acid (CLA) is incompletely hydrogenated prod...
متن کاملThe Effect of Urea Supplementation of High Grain Rations on the Metabolism of Fatty Acids in the Rumen of Sheep and Cattle
When rations containing, basically, sorghum grain were supplemented with urea, it was found that the urea affected the concentrations of certain fatty acids in the rumen and depot fat. On a ration of grain/sorghum silage similarly supplemented, isovaleric acid increased. There was a small affect of urea on the level of linoleic acid in the rumen of sheep which, however, was not significant at t...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 98 1 شماره
صفحات -
تاریخ انتشار 1969