ISO 6611-2004 乳和乳制品.酵母和(或)霉菌菌落形成单元的菌落计数.25℃时的菌落计数技术

标准号：ISO 6611-2004
中文标准名称：乳和乳制品.酵母和(或)霉菌菌落形成单元的菌落计数.25℃时的菌落计数技术
英文标准名称：Milk and milk products - Enumeration of colony-forming units of yeasts and/or moulds - Colony-count technique at 25 °C
标准类型：X16
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：X16
国际标准分类号：07.100.30;67.100.01
适用范围：This International Standard specifies a method for the detection and enumeration of colony-forming units (CFU) of viable yeasts and/or moulds in milk and milk products by means of the colony-count technique at 25 ℃. The method is applicable to — milk, liquid milk products, — dried milk, dried sweet whey, dried buttermilk, lactose, — cheese, — acid casein, lactic casein, rennet casein, — caseinate, acid whey powder, — butter, — frozen milk products (including edible ices), — custard, desserts, fermented milk and cream. NOTE This method is not suitable for a large number of thermolabile yeasts (in fresh cheese). In such cases the agar-surface-plating method is preferred.