| 储藏过程中鲜乳中的细菌数、pH、酸度的变化 |
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| 引用本文： | 杜磊,陈瑞利,杜杨,毛战胜.储藏过程中鲜乳中的细菌数、pH、酸度的变化[J].河南师范大学学报(自然科学版),2011,39(5):145-147. |
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| 作者姓名： | 杜磊 陈瑞利 杜杨 毛战胜 |
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| 作者单位： | 1. 安阳工学院生物与食品工程学院,河南安阳,455000
2. 安阳市畜牧局,河南安阳,455000 |
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| 摘 要： | 采用标准平板计数法测定牛乳的细菌数、酸度计法测定牛乳的pH值、滴定法测定牛乳的酸度,通过设置不同储藏温度:常温(不避光)、4℃,-18℃对鲜乳进行储藏,每隔一定时间测定不同储藏条件下鲜乳中细菌数、酸度、pH的值,得出储藏过程中细菌数、酸度、pH值的变化规律,找出各温度储藏条件下最佳储藏时间以及最佳储藏温度.研究表明:鲜...
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| 关 键 词： | 鲜牛乳 储藏温度 细菌数 pH 酸度 |
Changes on the Bacteria,pH,Acidity in the Fresh Milk During the Storage |
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| DU Lei,CHEN Rui-li,DU Yang,MAO Zhan-sheng.Changes on the Bacteria,pH,Acidity in the Fresh Milk During the Storage[J].Journal of Henan Normal University(Natural Science),2011,39(5):145-147. |
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| Authors: | DU Lei CHEN Rui-li DU Yang MAO Zhan-sheng |
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| Institution: | DU Lei1,CHEN Rui-li1,DU Yang2,MAO Zhan-sheng2(1.School of Biotechnology and Food,Anyang Institute of Technology,Anyang 455000,China,2.Anyang Animal Husbandry Bureau,China) |
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| Abstract: | The subject is to use the standard plate to count the number of bacteria in milk and pH meter to determinate the pH of the fresh milk and the method of titration acidity to determinate the acidity of milk,by setting different storage temperature: room temperature and not shading,4 degree Celsius,-18 degree Celsius to storage milk.Measuring the number of bacteria,acidity,pH values in fresh milk at intervals of some time under different storage conditions,is useful to obtain the mutative discipline of the var... |
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| Keywords: | fresh milk storage temperature bacteria pH acidity |
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