Effect of fatty acids on growth of conjugated-linoleic-acids-producing bacteria in rumen

Folia Microbiol (Praha). 2006;51(4):291-3. doi: 10.1007/BF02931816.

Abstract

Microorganisms with high activity of linoleic acid delta12-cis,delta11-trans-isomerase were isolated from the digestive tract of ruminants and characterized. The isolate with the highest isomerase activity was identified as Pseudobutyrivibrio ruminis. The susceptibility of this strain to 3 fatty acids added to the grow medium was determined. A significant inhibition of bacterial growth (during a 3-d period) by linoleic acid (0.1 %) and oleic acid (5 ppm) was observed; no inhibition was found in the presence of stearic acid.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Fatty Acids / metabolism*
  • Gram-Negative Anaerobic Bacteria / growth & development*
  • Gram-Negative Anaerobic Bacteria / isolation & purification
  • Gram-Negative Anaerobic Bacteria / metabolism
  • Linoleic Acids, Conjugated / metabolism*
  • Rumen / microbiology*
  • Ruminants / microbiology

Substances

  • Fatty Acids
  • Linoleic Acids, Conjugated