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MICROBIAL INHIBITORS EVALUATED BY DELVO-TEST IN MILK FOR CONSUMPTION IN SÃO PAULO STATE (BRAZIL)

DILMA S. GELLI, MIYOKO JAKABI, ALDO DE SOUZA, MITUKA KAKU, ELIANA G. A. RIBEIRO, MARINA A. R. S. RIBEIRO, ARACELIS M. FREITAS, MARIA REGINA E. ESPER, BEATRIZ PISANI, MARILU M. ROCHA, ALICE Y. TANAKA, MARIA TOSHIKO F. CASTRO

Abstract

Six hundred and eighty four milk samples were tested for anti-microbial substances by the Delvo-test. Presented positive results 12,72%. Evaluation by classes of milk, revealed positive: 44 samples from type B 17,32%, 8 type C 8,25%, 21 special type-3,2% fat content 11,05%, 5 of 2% of fat content 18,52% and 9 non pasteurized 8,82%. AlI others 597 samples, that includes 14 type A, resulted negative for anti-microbial substances by the Delvo-test. Bauru and Sorocaba regions showed a significantly high number of positive samples when compared to others regions (respectively 5 positives among 9 and 21 among 135 samples analysed).