title: Effect of fatty acids on growth of conjugated-linoleic-acids-producing bacteria in rumen.
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.
authors.affiliation: Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Prague, Czechia. koppova@iapg.cas.cz
authors.forename: I
authors.initials: I
authors.lastname: Koppová
authors.forename: F
authors.initials: F
authors.lastname: Lukás
authors.forename: J
authors.initials: J
authors.lastname: Kopecný
mesh_terms: D000818:Animals; D005227:Fatty Acids / Q000378:metabolism*; D006089:Gram-Negative Anaerobic Bacteria / Q000254:growth & development* / Q000302:isolation & purification / Q000378:metabolism; D044243:Linoleic Acids, Conjugated / Q000378:metabolism*; D012417:Rumen / Q000382:microbiology*; D012418:Ruminants / Q000382:microbiology
chemical_list: D005227:Fatty Acids; D044243:Linoleic Acids, Conjugated