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ROSANA DE LONGHI NATALÍ SPINARDI MARLISE TALISSA NISHIMURA MARCIA YUKARI MIYABE LINA CASALE ARAGON‐ALEGRO MARCELA DE REZENDE COSTA ELSA HELENA WALTER DE SANTANA 《International Journal of Dairy Technology》2012,65(1):45-50
The objective was to evaluate the quality of important brands of ultra‐heat‐treated (UHT) milk marketed in the northern of Parana State, Brazil, during the shelf life of the product. Five brands were analysed at 30, 60, 90 and 120 days after UHT milk production. The physicochemical quality of the milk was assessed in terms of fat content, titratable acidity, density, freezing point depression, total solids, solids‐not‐fat, proteolysis and alcohol stability. Microbiological quality was assessed by the enumeration of aerobic mesophilic micro‐organisms. None of the brands complied with all the physicochemical standards. Two brands met all applicable microbiological requirements. Gelation was observed from 90 days of storage onwards in all brands. 相似文献