Qualidade microbiológica e físico-química do leite integral pasteurizado pelo processo lento, em propriedades rurais do estado de Goiás

Abstract

Microbiological and physical-cbemical analysis were performed on 1.038 sam­ples of whole milk pasteurized by long-time low temperature process in rural properties from Goiás State. Toe results showed tbat 8. 19% of samples were out of lhe standard sei by lhe brazilian legislation for mesophylic aerobic microorganisms count, 15.13% for NMP of total coliform determination and 13 .29% for NMP of fecais coliform. ln relation to physical-chemical analysis, acidity and freezing-point tests showed high number of samples out lhe standard sei by lhe brazilian legislation, 12.24% and 17.34% respecti­vely. Alkaline phospbatase enzyme was present in 5.2% ofthe samples and peroxidase absent in 7.41 %, showing inadequate control of lhe pasteurization process.