At the present the fresh milk on sale mainly are pasteurization milk and ultra high temperature (UHT) sterilization milk, but still some not disinfected milk was saled.

• 目前市售鲜乳主要为巴氏杀菌乳和UHT灭菌乳,但也有一部分未经消毒的散装生牛乳。实验采用国家规定的标准办法检验未经消毒的生牛乳中的细菌总数和大肠菌群数。