DIN ISO 16649-2-2009 食品和动物饲料的微生物学.列举葡萄糖苷酸酶.阳性大肠杆菌的水平方法.第2部分:在44℃温度下利用5溴,4氯,3吲哚 D葡糖苷酸的菌落计数技术(ISO 16649-2:2001)
Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of -glucuronidase-positive Escherichia coli - Part 2: Colony-count technique at 44 °C using 5-bromo-4-chloro-3-indolyl -D-glucuronide (ISO 16649-2:2001)
This part of DIN ISO 16649 specifies a horizontal method for the enumeration of á-glucuronidase-positive Escherichia coli in products intended for human consumption or for the feeding of animals. It uses a colony-count technique at 44 ℃ on a solid medium containing a chromogenic ingredient for detection of the enzyme β-glucuronidase.