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Analysis by fast protein liquid chromatography of variants of κ-casein and their relevance to micellar structure and renneting

Published online by Cambridge University Press:  01 June 2009

Douglas G. Dalgleish
Douglas G. Dalgleish
Affiliation:
Hannah Research Institute, Ayr, Scotland, KA6 5HL
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Summary

Fast protein liquid chromatography was used to study the κ-casein fraction of casein micelles from bulk milk and from milk from individual animals homozygous for κ-caseins A and B. The extent of glycosylation of the κ-casein appeared to have no effect on its distribution in casein micelles of different sizes, nor did it affect the rate at which κ-casein was destroyed during renneting. The rate of breakdown of κ-casein during renneting was also almost independent of micellar size. The results may indicate a difference between methods which analyse for intact κ-casein or for the product macropeptide during renneting.

Type
Original Articles
Information
Journal of Dairy Research , Volume 53 , Issue 1 , February 1986 , pp. 43 - 51
Copyright
Copyright © Proprietors of Journal of Dairy Research 1986

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References

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