Susceptibility of emetic and enterotoxigenic Bacillus cereus grown at high temperature to disinfectants

The prevalence of emetic strains in food products is rare; however, infection with these may be fatal to the vulnerable population. Bacterial control Bacillus cereus still unclear. This study aimed assess influence high temperature on disinfection and enterotoxigenic B. cereus. Emetic survived up 50 °C; lag time maximum growth rate were higher at 42 °C than those 30 °C. Compared cereus, all showed minimum inhibitory concentrations bactericidal for sodium hypochlorite citric acid. disinfectant susceptibility OS-05 strain incubated a did not increase was maintained highest MBC value. In strains, enterotoxin gene expression upregulated 45 Increased ces also found GP-15 OS-05, upregulation 128- 820-fold Thus, grown temperatures resist common disinfectants industry. findings help or processing