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Studies on rumen metabolism. V. —formation of branched long chain fatty acids in cultures of rumen bacteria
Author(s) -
Tweedie J. W.,
Rumsby M. G.,
Hawke J. C.
Publication year - 1966
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740170603
Subject(s) - rumen , propionate , valine , bacteria , chemistry , metabolism , fatty acid , long chain , biochemistry , carbon chain , organic chemistry , stereochemistry , food science , amino acid , biology , fermentation , polymer science , genetics
When mixed rumen bacteria were incubated with isobutyrate‐1‐ 14 C, the 14 C‐label was incorporated into branched long chain fatty acids with both odd and even numbers of carbon atoms. Tracer studies showed that the 14 C‐label from DL‐valine‐4‐ 14 C was incorporated into branched long chain fatty acids and also into straight chain fatty acids with odd numbers of carbon atoms. In addition, labelled isobutyrate and propionate were synthesised from valine and probably represent intermediates in the synthesis of the branched and straight chain fatty acids respectively.