当前位置: 首页 > 文章 > 欧姆加热对牛奶中菌落总数和大肠菌群的影响 西北农业学报 2006,15 (1) 29-32
Position: Home > Articles > Effect of Ohmic Heating Sterilization on the Bacteria Counts and Coliform in Milk Acta Agriculturae Boreali-occidentalis Sinica 2006,15 (1) 29-32

欧姆加热对牛奶中菌落总数和大肠菌群的影响

作  者:
高霞;仇农学
单  位:
陕西师范大学食品工程系
关键词:
牛奶;欧姆加热;微生物;杀菌
摘  要:
利用欧姆加热技术对牛奶进行杀菌处理,研究了杀菌温度、杀菌时间和欧姆加热电压对牛奶中菌落总数和大肠菌群残留率的影响。结果表明:随着杀菌温度的升高、杀菌时间的延长、欧姆加热电压的升高,牛奶中菌落总数和大肠菌群残留率均减小。综合考虑各方面因素,得出对牛奶进行欧姆杀菌的最佳参数为杀菌温度70℃、杀菌时间10 s、电压250V。在最优参数下经欧姆加热处理后的牛奶可达到完全无菌的状态。
译  名:
Effect of Ohmic Heating Sterilization on the Bacteria Counts and Coliform in Milk
作  者:
GAO Xia and QIU Nong-xue~* (Department of Food Engineering,Shaanxi Normal University,Xi'an Shaanxi 710062,China)
关键词:
Milk;Ohmic heating;Microbe;Sterilization
摘  要:
Milk sterilization with ohmic heating was studied in this paper.The influence of sterilization temperature,time and electric voltage of ohmic heating on the survival rate of the bacteria counts,coliform were investigated.The result showed that the bacteria counts and coliform were decreased with the increasing of sterilization temperature,time and the voltage of ohmic heating,the milk reached aseptic state after sterilized with ohmic heating,the optimal specifications of ohmic heating were the temperature 70℃,the time 10 s and the voltage 250 V.

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