Microbiology of food and animal feeding stuffs. Horizontal method for the enumeration of presumptive Bacillus cereus. Colony-count technique at 30 °C

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Hardcopy , PDF

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English

Published date

09-04-2020

Publisher

British Standards Institution

This International Standard specifies a horizontal method for the enumeration of viable presumptive Bacillus cereus by means of the colony-count technique at 30 °C.

This International Standard specifies a horizontal method for the enumeration of viable presumptive Bacillus cereus by means of the colony-count technique at 30°C. 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. NOTE1 In order to have a practicable test method, the confirmatory stage has been restricted to the typical aspect on MYP agar and the haemolysis test. Thus the term “presumptive?? has been introduced in order to acknowledge the fact that the confirmatory stage does not enable the distinction of B. cereus from other closely related but less commonly encountered Bacillus species, such as B. anthracis, B. thuringiensis, B. weihenstephanensis, B. mycoides. An additional motility test may help to differentiate B. cereus from B. anthracis in cases where the presence of the latter is suspected. NOTE2 The diversity within the Bacillus cereus group is large with 7 phylogenetic groups[21][22] and a growing number of species.

Committee	AW/9
DocumentType	Standard
ISBN	9780539152968
Pages	46
ProductNote	Implementation of ISO corrected text 6 August 2020: volume per reaction for EM1F and EM1R in Table D.2 corrected
PublisherName	British Standards Institution
Status	Current
Supersedes	BS EN ISO 7932:2004 BS 4285-3.12:1989

Standards	Relationship
ISO 7932:2004/Amd 1:2020	Identical
EN ISO 7932:2004/A1:2020	Identical

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BS EN ISO 7932:2004+A1:2020

Microbiology of food and animal feeding stuffs. Horizontal method for the enumeration of presumptive Bacillus cereus. Colony-count technique at 30 °C

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