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The colloidal phosphate of milk: II. Influence of citrate

Published online by Cambridge University Press:  01 June 2009

G. T. Pyne
Affiliation:
Dairy Chemistry Department, University College, Cork
T. C. A. McGann
Affiliation:
Dairy Chemistry Department, University College, Cork

Summary

A new method for determining the composition of the colloidal phosphate of milk has been developed, based on analysis of milk free from colloidal phosphate. Preparation of this material is described.

The results suggest that the so-called colloidal calcium phosphate of milk should be more properly described as a colloidal phosphate—citrate.

This colloidal phosphate—citrate shows considerable analytical resemblance to the precipitate formed on neutralizing acidified milk serum. Both can be represented approximately by the empirical formula of a hypothetical citrate apatite.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1960

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