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Journal of Dairy Science Vol. 34 No. 9 935-939
© 1951 by American Dairy Science Association ®
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Hydrolytic Rancidity in Milk. III. Tributyrinase Determination as a Measure of Lipase

W. L. Dunkley1 and L. M. Smith

Department of Dairying, University of Alberta, Edmonton

ABSTRACT

Procedures for the determination of tributyrinase and lipase are described.

Data showing the correlation between tributyrinase and lipase determinations applied to the milk of individual cows are presented.

At 10° C. the pH optimum for both tributyrinase and lipase was about 9.5.

The correlation of results of tributyrinase and lipase determinations and the coincidence of the pH optima provide greater confidence in the use of the tributyrinase determination as a measure of lipase in milk.

FOOTNOTES

1 Present address: University of California, Davis.






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Copyright © 1951 by the American Dairy Science Association ®.