Prevalence of Bacillus cereus in some dairy desserts in Egypt

Document Type : Original Articles

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Abstract

Pudding and rice pudding are very popular dairy desserts consumed in Egypt that are processed and stored in conditions suitable for many microorganisms to flourish.  Bacillus cereusis a Gram-positive, spore-forming pathogen that was incriminated in several foodborne outbreaks of two distinct types; the diarrheal and the emetic Both types have serious effect on human health.. Therefore, this study aim to detect the prevalence of B. cereus in some locally manufactured dairy desserts that sold in Mansoura city, Moreover, the enterotoxigenicity of recovered isolates was detected through scanning the isolates for some virulence genes. In this study, B. cereus could be detected in 58 , 74% of  pudding and rice pudding samples with mean values of 8.38× 105±1.8×105 and  4.4 × 106  ± 1.4 × 106CFU/g, respectively.  It was found that 100, 77.8, 100 and 22.2 % of B. cereus isolates obtained from the examined samples have nhe, hbl, cytK and ces genes, receptively

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