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ISO 21527-2:2008

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

Publication date:   Jul 1, 2008

General information

90.92 Standard to be revised   May 23, 2022

ISO

ISO/TC 34/SC 9 Microbiology

International Standard

07.100.30   Food microbiology

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Scope

ISO 21527-2:2008 specifies a horizontal method for the enumeration of viable osmophilic yeasts and xerophilic moulds in products intended for human consumption or feeding of animals, having a water activity less than or equal to 0,95 (dry fruits, cakes, jams, dried meat, salted fish, grains, cereals and cereals products, flours, nuts, spices and condiments, etc.), by means of the colony count technique at (25 ± 1) °C.
ISO 21527-2:2008 does not apply to dehydrated products with water activity less than or equal to 0,60 (dehydrated cereals, oleaginous, spices, leguminous plants, seeds, powders for instant drinks, dry products for domestic animals, etc.) and does not allow the enumeration of mould spores. Neither the identification of fungal flora nor the examination of foods for mycotoxins lie within the scope of ISO 21527-2:2008. The method specified in ISO 21527-2:2008 is not suitable for enumeration of halophilic xerophilic fungi (i.e. Polypaecilum pisce, Basipetospora halophila) found in dried fish.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 7698:1990

WITHDRAWN
ISO 7954:1987

WITHDRAWN
ISO 13681:1995

NOW

PUBLISHED
ISO 21527-2:2008
90.92 Standard to be revised
May 23, 2022

REVISED BY

IN_DEVELOPMENT
ISO/CD 21527