ISO 21527-2-2008 食品和牲畜饲料的微生物学.酵母和霉的调查用水平法.第2部分:水活性≤0.95生成物的菌落计数技术

标准号：ISO 21527-2-2008
中文标准名称：食品和牲畜饲料的微生物学.酵母和霉的调查用水平法.第2部分:水活性≤0.95生成物的菌落计数技术
英文标准名称：Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of yeasts and moulds - Part 2: Colony count technique in products with water activity less than or equal to 0,95
标准类型：C53
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：C53
国际标准分类号：07.100.30
引用标准：ISO 6887;ISO 7218;ISO 8261;ISO 21527-1;ISO/TS 11133
适用范围：This part of ISO 21527 specifies a horizontal method for the enumeration of viable osmophilic yeasts andxerophilic moulds in products intended for human consumption or feeding of animals that have a water activityless than or equal to 0,95 (dry fruits, cakes, jams, dried meat, salted fish, grains, cereals and cereal products,flours, nuts, spices and condiments, etc. [Annex A]), by means of the colony count technique at 25 ℃± 1 ℃(Reference [3])This part of ISO 21527 does not apply to dehydrated products with water activity less than or equal to 0,60(dehydrated cereals, oleaginous products, spices, leguminous plants, seeds, powders for instant drinks, dryproducts for domestic animals, etc) and does not allow the enumeration of mould spores (Reference (3])Neither the identification of fungal tiara nor the examination of foods for mycotoxins lie within the scope of thispart of ISO 21527. The method specified in this part of ISO 21527 is not suitable for enumeration of halophilicxerophilic fungi (i.e. Polypaectlurn pisce, Basipetospora halophila) such as may be found in dried fish