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The component fatty acids of the colostral fat and milk fat of the sow

Published online by Cambridge University Press:  01 June 2009

W. R. H. Duncan  and
G. A. Garton
W. R. H. Duncan
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
G. A. Garton
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
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Summary

The fatty acid composition of colostral and milk fat samples representative of the total secretion of the nursing mammae of each of 3 sows was determined by gas-liquid chromatography. In both colostral and milk fats, acids of chain length C16 and C18 accounted for more than 90% of the total fatty acids present; colostral fat contained a higher proportion of oleic acid and linoleic acid and less palmitic acid and palmitoleic acid than normal milk fat. Structural studies on milk triglycerides showed that, as in pig depot fat, palmitic acid is preferentially esterified to the secondary alcoholic group (2-position) of the glycerol molecules with the C18 acids (stearic, oleic and linoleic acids) being present for the most part in the 1- and 3- positions.

Type
Original Articles
Information
Journal of Dairy Research , Volume 33 , Issue 3 , October 1966 , pp. 255 - 259
Copyright
Copyright © Proprietors of Journal of Dairy Research 1966

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References

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