Title: Role of Leucocytes in the Reduction of Resazurin in Raw Milk
Abstract: Leucoeytes~ freshly isolated from bovine blood, rapidly reduced resazurin in raw milk, but these leucocytes rapidly lost activity on storage in nfilk at 37 ° C. Leucocytes isolated from raw milk had only a weak ability to reduce resazurin, and renmval of leucocytes from raw milk by centrifugation had little influence on the reducing activities of the milk.Incubation of leucocytes, isolated from raw ufilk, with fresh bovine plasma resulted in a reactivation of the reducing powers of the leucocytes.Disintegrated leucocytes did not contribute substrates for the reducing systems of raw milk.