標準號：BS ISO 21528-1-2004
中文標準名稱：食品和動物飼料的微生物學.腸桿菌科的檢測和計數的水平方法.帶預濃縮的MPN技術的檢測和計數
英文標準名稱：Microbiology of food and animal feeding stuffs - Horizontal methods for the detection and enumeration of Enterobacteriaceae - Detection and enumeration by MPN technique with pre-enrichment
標準類型：C53
發布日期：2004/9/8 12:00:00
實施日期：2004/9/8 12:00:00
中國標準分類號：C53
國際標準分類號：07.100.30
適用范圍：ISO 21528-1:2004 specifies a method, with pre-enrichment, for the detection of Enterobacteriaceae. It is applicable to products intended for human consumption and the feeding of animals, and environmental samples in the area of food production and food handling.Enumeration is carried out by calculation of the most probable number (MPN) after incubation at 37 °C in liquid medium.This method is applicable when the microorganisms sought are expected to need resuscitation before enrichment, and when the number sought is expected to be in the range 1 to 100 per millilitre or per gram of test sample.A limitation on the applicability of ISO 21528-1:2004 is imposed by the susceptibility of the method to a large degree of variability