| BIOHYDROGENATION OF UNSATURATED FATTY ACIDS BY RUMEN BACTERIA. | |
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MedLine Citation:
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PMID: 14219019 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Polan, C. E. (North Carolina State of the University of North Carolina, Raleigh), J. J. McNeill, and S. B. Tove. Biohydrogenation of unsaturated fatty acids by rumen bacteria. J. Bacteriol. 88:1056-1064. 1964.-A simple, rapid, specific assay for the biohydrogenation of unsaturated fatty acids was developed. With this assay, it was shown that washed suspensions of mixed rumen bacteria hydrogenate linoleic and oleic acids. Butyrivibrio fibrisolvens, a common rumen bacterium, is capable of hydrogenating linoleic acid to octadecenoic acid but not to stearic acid. Complete anaerobiosis is required, and with mixed rumen bacteria more activity is obtained in an atmosphere of hydrogen than of either nitrogen or helium, whereas carbon dioxide is inhibitory. The extent of biohydrogenation varies with the season of the year, and a variable stimulatory effect is obtained upon the addition of boiled rumen fluid. Biohydrogenation activity in B. fibrisolvens is markedly dependent upon the age of the organism and concentration of cells used in the medium. The presence of certain other rumen bacteria, which by themselves are incapable of carrying out the biohydrogenation reaction, can prevent loss of activity of B. fibrisolvens due to age or dilution. Two systems are involved in the complete hydrogenation of linoleic acid: one specific for the conversion of linoleic acid to a monoenoic acid, and the other for the hydrogenation of a monoenoic acid to stearic acid. |
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Authors:
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C E POLAN; J J MCNEILL; S B TOVE |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of bacteriology Volume: 88 ISSN: 0021-9193 ISO Abbreviation: J. Bacteriol. Publication Date: 1964 Oct |
Date Detail:
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Created Date: 1965-02-01 Completed Date: 1996-12-01 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 2985120R Medline TA: J Bacteriol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1056-64 Citation Subset: OM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Eubacterium* Fatty Acids / metabolism* Linoleic Acid* Oleic Acid* Research* |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids; 112-80-1/Oleic Acid; 2197-37-7/Linoleic Acid |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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