Microbiological evaluation of infant foods quality and molecular detection of Bacillus cereus toxins relating genes

Toxicology Reports
Zeinab I SadekMahmoud S Hassan

Abstract

A 205 samples representing eight different infant foods with various based materials were collected and analyzed for their microbiological properties. The contamination rate by aerobic spore formers was achieved 100% in milk based infant food with fruit, vegetables, honey, rice and infant milk powder. While, it was detected in 95, 60 and 65% of the infant food with wheat milk based, ready to use (infant food with fruit) and ready to use (infant food with vegetables), respectively. Biochemical Identification and API 50 CHB used to identify the obtained isolates and revealed that B. subtilis was the most frequently occurring Bacillus spp. Followed by B. licheniformis and B. circulans. While B. cereus was detected in 10.20% of the total isolates. Moreover, B. cereus was confirmed in 21.2% of milk based fruit, vegetables (15.7%), honey (17.2%), rice (14.1%) and wheat (12%) and vanished in the infant milk powder samples. Although, B. cereus noted in lower percentage but this strain is considered as the more harmful one in lower numbers. For that, the following part is focused on B. cereus. Forty five isolates obtained from B. Cereus contaminating samples were screened for prevalence of 3 important virulent enterotoxigenic genes usin...Continue Reading

Citations

Jan 20, 2021·Journal of Food Protection·Heba M Amin, Mahmoud M Tawfick
Jun 24, 2021·Comprehensive Reviews in Food Science and Food Safety·Jelena JovanovicAndreja Rajkovic
Dec 25, 2019·Journal of Infection and Public Health·Mohamed N AlanberJamal M Khaled
Sep 4, 2021·Analytical and Bioanalytical Chemistry·Nuttapon JirakittiwutThanit Praneenararat

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