This part of ISO 16649 specifies a horizontal method for the enumeration of β-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 p-glucuronidase. WARNING —Strains of Escherichia coli which do not grow at 44 ℃ and, in particular, those that are β-glucuronidase negative, such as Escherichia coli 0157, will not be detected.
BS ISO 16649-2-2001由英国标准学会 GB-BSI 发布于 2001-10-23,并于 2001-10-23 实施。
BS ISO 16649-2-2001 在中国标准分类中归属于: C53 食品卫生,在国际标准分类中归属于: 07.100.30 食品微生物学。
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