Growth of enterotoxin producing Bacillus cereus in meat substrate at 10?C and 30?C

The behaviour of enterotoxin-producing Bacillus cereus in meat was investigated by inoculating spore suspensions of five cultures into meat substrate (pH 5.8) and incubating at 10ºC and 30ºC. The bacterial populations were evaluated after different times by plate counts in nutrient agar. All the cul...

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Bibliographic Details
Published in:Brazilian journal of microbiology 2012-10, Vol.43 (4), p.1401
Main Authors: Soares, Celina Mara, Kabuki, Dirce Yorika, Kuaye, Arnaldo Yoshiteru
Format: Article
Language:English
Subjects:
Bacteria
Bacteriology
Meat
Temperature effects
Toxins
Online Access:Get full text
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Summary:The behaviour of enterotoxin-producing Bacillus cereus in meat was investigated by inoculating spore suspensions of five cultures into meat substrate (pH 5.8) and incubating at 10ºC and 30ºC. The bacterial populations were evaluated after different times by plate counts in nutrient agar. All the cultures presented growth at 30ºC with the generation time varying from 28.8 to 36.0 minutes. Three cultures also presented growth at 10ºC with generation times between 10.16 and 28.38 h. Considering the results, it was concluded that meat kept at abusive temperatures would be subject to development of this microorganism. [PUBLICATION ABSTRACT]
ISSN:1517-8382
1678-4405
DOI:10.1590/S1517-83822012000400022