Abstract
Enterotoxigenic Profiles of Virulent Bacillus cereus Isolated from Dairy Environments: Antimicrobials Resistant Pattern and Sporicidal Disinfectants Efficacy
Highlights
The genus Bacillus is a Gram-positive, aerobic-to facultative, spore-forming rod-shaped bacterium
Hemolysin BL consists of binding protein B, lysing proteins L1, and L2 encoded by hblA, hblC and hblD genes, respectively
The present study aimed to investigate the prevalence of Bacillus species especially B. cereus in milk, milk products, water and dairy cattle macro-environmental samples in some villages of Sohag, Egypt, in addition to detection the hbl and nhe toxin genes in B. cereus isolates by polymerase chain reaction (PCR)
Summary
The genus Bacillus is a Gram-positive, aerobic-to facultative, spore-forming rod-shaped bacterium. It is ubiquitous in nature and constituted the majority of aerobic sporeformers flora that likely to inhabit water-damaged indoor environments and foods (Mohamed et al, 2016). Those thermotolerant spore formers constitute a considerable risk towards keeping quality of both pasteurized and refrigerated dairy products (Caamaño-Antelo et al, 2015; Singh et al, 2015). While nonhemolytic enterotoxin has three proteins moieties B, L1 and L2 encoded by the three genes nheA, nheB and nheC, respectively (Ombui et al, 2008)
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