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.
BS ISO 6611-2004由英国标准学会 GB-BSI 发布于 2004-11-01,并于 2004-11-01 实施。
BS ISO 6611-2004 在中国标准分类中归属于: X16 乳与乳制品,在国际标准分类中归属于: 07.100.30 食品微生物学,67.100.01 奶和奶制品综合。
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