Bacillus cereus: Taxonomy, Epidemiology and Stress Response (pp. 199-216)
Authors: (Antonio Bevilacqua, Milena Sinigaglia and Maria Rosaria Corbo, University of Foggia, Via Napoli, Italy and others)
Abstract: Bacillus cereus is a Gram-positive, spore former microorganism, included in the category 3 of foodborne pathogens (moderate hazard, limited spread), responsible of two kinds of illness, i.e. diarrheal and emetic syndromes, caused by different toxins. After a brief overview on the taxonomy and pathogenicity, this chapter focuses on the stress response of B. cereus to acidification, cooling and heating, increase in salt concentration, oxygen, photosensitization and kind of nutrients. Finally, the chapter proposes a synopsis of B. cereus epidemiology, with a short section at the end reporting the basic principles to avoid contamination in food.