610. Destruction of Mycobacterium tuberculosis and Phosphatase in heat treated cream

Abstract
Batches of cream were artificially infected with M. tuberculosis, and subjected to varying heat treatments under conditions of H.T.S.T. and holder pasteurization. Guinea-pig and phosphatase tests were applied to the treated creams.The minimum time-temperature conditions required for the inactivation of M. tuberculosis and phosphatase were found to be similar to those pertaining to milk.The practical difficulties of controlling the effciency of cream pasteurization are discussed.

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