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Milk stability in ethanolic solutions

Published online by Cambridge University Press:  01 June 2009

Alice Pierre
Alice Pierre
Affiliation:
Dairy Research Laboratory, INRA, 65, rue de Saint Brieuc, 35 Rennes, France
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Summary

We have investigated the role of pH in the destabilization of milk and sodium caseinate solutions by ethanol. Ethanol shifted the pH of minimum stability of both caseinate and milk to higher values. A linear relation between this pH and the reciprocal dielectric constant of the mixture was observed. The addition of calcium to these alcoholic mixtures also increased the pH of minimum stability. The results are discussed in terms of the alcohol-induced shifts in the pK values of important constituent amino acids and of the effect of alcohol on soluble Ca levels.

Type
Original Articles
Information
Journal of Dairy Research , Volume 56 , Issue 3: Special Issue: Proceedings of the Hannah Research Institute Casein Conference , May 1989 , pp. 521 - 527
Copyright
Copyright © Proprietors of Journal of Dairy Research 1989

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References

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