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Milk triglycerides: the degree of non-random associations of fatty acids

Published online by Cambridge University Press:  01 June 2009

R. A. Breach ,
R. Dils  and
R. Watts
R. A. Breach
Affiliation:
Department of Biochemistry, The Medical School, University of Nottingham, Nottingham, NG7 2RD
R. Dils
Affiliation:
Department of Biochemistry, The Medical School, University of Nottingham, Nottingham, NG7 2RD
R. Watts
Affiliation:
Department of Biochemistry, University of Birmingham, P.O. Box 363, Birmingham, B15 2TT
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Summary

Published data are available for the fatty-acid compositions and molecular-weight distributions of triglycerides in milk and adipose tissue from the guinea-pig, rat, mouse and rabbit, and in milk from the human, cow, mink and hamster. These data have been used to calculate the extent of non-random associations of fatty acids of different chain lengths in these triglycerides.

The results support, in general, the concept of non-correlative acylation, i.e. that during the biosynthesis of these triglycerides, fatty acids already present on the glycerol backbone do not influence the selective acylation of subsequent fatty acids. However, milk triglycerides from these animals show varying degrees of intermolecular specificity which can be explained in terms of positional specificity of fatty acids on the glycerol backbone.

Type
Research Article
Information
Journal of Dairy Research , Volume 40 , Issue 2 , June 1973 , pp. 273 - 287
Copyright
Copyright © Proprietors of Journal of Dairy Research 1973

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