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Biohydrogenation of linoleic acid and production of conjugated linoleic acids by fractions prepared from bovine rumen fluid

Published online by Cambridge University Press:  23 November 2017

A. Dorel ,
N. D. Scollan ,
M. R. F. Lee ,
D. R. Yáñez Ruiz  and
C.J. Newbold
A. Dorel*
Affiliation:
Institute of Grassland and Environmental Research, Aberystwyth, SY23 3EB, U.K. Institute of Rural Science, University of Wales, Aberystwyth, SY23 3AL, U.K.
N. D. Scollan
Affiliation:
Institute of Grassland and Environmental Research, Aberystwyth, SY23 3EB, U.K.
M. R. F. Lee
Affiliation:
Institute of Grassland and Environmental Research, Aberystwyth, SY23 3EB, U.K.
D. R. Yáñez Ruiz
Affiliation:
Institute of Rural Science, University of Wales, Aberystwyth, SY23 3AL, U.K.
C.J. Newbold
Affiliation:
Institute of Rural Science, University of Wales, Aberystwyth, SY23 3AL, U.K.
*
Email: anna.dorel@bbsrc.ac.uk
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Extract

Dietary conjugated linoleic acids (CLA) offer significant health benefits for man, and ruminant products are the major dietary sources (Bauman et al., 2001). The synthesis of CLA in the ruminant animal occurs either directly in the rumen or in the tissue from trans -vaccenic acid (TVA), formed primarily as intermediate products of ruminal biohydrogenation of linoleic acid (C18:2) to stearic acid (C18:0). Within the rumen, the pattern of biohydrogenation and the products formed appear to differ between the particle rich and the liquid fractions of the rumen (Singh and Hawke, 1979), with biohydrogenation occurring primarily on small particles. The aim of this study was to investigate whether the pattern of CLA and TVA formation differs in these fractions.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2005 , 2005 , pp. 202
Copyright
Copyright © The British Society of Animal Science 2005

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References

Bauman, D. E., Corl, B. A., Baumgard, L. H. and Griinari, J. M. 2001. Conjugated linoleic acid (CLA) and the dairy cow. In Recent Advances in Animal Nutrition (ed. Garnsworthy, P.C., and Wiseman, J.), pp. 221–250. Nottingham University Press, Nottingham, UK.Google Scholar
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Singh, S. and Hawke, J. C. 1979. The in vitro lipolysis and biohydrogenation of monogalactosyldiglyceride by whole rumen contents and its fractions. Journal of the Science of Food and Agriculture 42: 603–612.CrossRefGoogle Scholar