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Metabolism of the rumen bacterium Selenomonas ruminantium grown in continuous culture
Author(s) -
Silley P.,
Armstrong D. G.
Publication year - 1985
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1985.tb01488.x
Subject(s) - chemostat , propionate , fermentation , rumen , dilution , bacteria , mixed acid fermentation , biology , food science , microbiology and biotechnology , biochemistry , ethanol , chemistry , lactic acid fermentation , lactic acid , genetics , physics , thermodynamics
Selenomonas ruminantium 0078A was grown in a glucose‐limited chemostat over a dilution rate range of 0.049‐0‐137/h. Fermentation products were acetate, propionate, succinate, lactate and C0 2 ; traces of ethanol were also detected. Succinate accounted for up to 52% of the substrate glucose carbon. When dilution rate was increased without a concomitant increase in glucose supply per unit time there were changes in the fermentation pattern which were not apparent when both dilution rate and glucose supply were simultaneously increased; the molar proportion of acetate increased at the expense of propionate.