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The hydrogenation of gamma-linolenic acid by pure cultures of two rumen bacteria.


ABSTRACT: Two species of rumen bacteria that have been previously shown to partially hydrogenate alpha-linolenic acid have been examined for their ability to hydrogenate gamma-linolenic acid. Free gamma-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-6,11-enoic acid by a Butyrivibrio sp. The sequential hydrogenations are preceded by a delta 12-cis-delta 11-trans isomerization identical with that observed in the hydrogenation of alpha-linolenic acid and linoleic acid.

SUBMITTER: Kemp P 

PROVIDER: S-EPMC1152535 | biostudies-other | 1983 Nov

REPOSITORIES: biostudies-other

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