Regulation of toxin production by Bacillus cereus and its food safety implications

Siele CeuppensCorrespondence[email protected] www.foodmicrobiology.ugent.be

Andreja RajkovicGhent University, Faculty of Bioscience Engineering, Laboratory of Food Microbiology and Food Preservation (LFMFP), Ghent, Belgium

Marc HeyndrickxMinistry of the Flemish Community, Institute for Agricultural and Fisheries Research (ILVO), Technology and Food Science Unit, Melle, Belgium

Varvara Tsilia

Tom Van De WieleGhent University, Faculty of Bioscience Engineering, Laboratory of Microbial Ecology and Technology (LabMET), Ghent, Belgium.

Nico BoonGhent University, Faculty of Bioscience Engineering, Laboratory of Microbial Ecology and Technology (LabMET), Ghent, Belgium.

Mieke UyttendaeleGhent University, Faculty of Bioscience Engineering, Laboratory of Food Microbiology and Food Preservation (LFMFP), Ghent, Belgium

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Abstract

Toxin expression is of utmost importance for the food-borne pathogen B. cereus, both in food poisoning and non-gastrointestinal host infections as well as in interbacterial competition. Therefore it is no surprise that the toxin gene expression is tightly regulated by various internal and environmental signals. An overview of the current knowledge regarding emetic and diarrheal toxin transcription and expression is presented in this review. The food safety aspects and management tools such as temperature control, food preservatives and modified atmosphere packaging are discussed specifically for B. cereus emetic and diarrheal toxin production.

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Regulation of toxin production by Bacillus cereus and its food safety implications

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