Microbiological quality of pasteurized milk type B marketed in Curitiba, PR

被引:0
|
作者
Shirai, Marianne Ayumi [1 ]
Bau, Tahis Regina [2 ]
de Assuncao, Ramon Delano [3 ]
Masson, Maria Lucia [1 ]
机构
[1] Univ Fed Parana, Ctr Politecn, Programa Posgrad Tecnol Alimentos, Caixa Postal 19011, BR-81531980 Curitiba, Parana, Brazil
[2] Univ Estadual Londrina, Programa Mestrado & Doutorado Ciencia Alimentos, Londrina, PR, Brazil
[3] Univ Fed Parana, Ctr Politecn, Discente Curso Engn Quim, Curitiba, Parana, Brazil
来源
关键词
pasteurization; psychrotrophs; proteolysis; lipolysis;
D O I
暂无
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The aim of this work was to evaluate the microbiological quality of pasteurized milk type B marketed in Curitiba city, state of Parana, Brazil, during his shelf-life. The samples were collected randomly in commercial establishments when they were placed on the shelf and the count of mesophilic, psychrotrophic, proteolytic and lipolytic psychrotrophic microorganisms and determination of alkaline phosphatase and peroxidase were done. The milk samples were cold stored (5 degrees C) and a new microbiological count was done in the end of shelf life. The results show that during the period of validity, there was an increase in the count of mesophiles in 4 samples. In 7 samples there was multiplication of psychrotrophic.
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页码:27 / 31
页数:5
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