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Comparison on inactivation of Enterobacter sakazakii, Salmonella typhimurium, and Bacillus cereus inoculated on infant formula during storage by gamma irradiation
- Comparison on inactivation of Enterobacter sakazakii, Salmonella typhimurium, and Bacillus cereus inoculated on infant formula during storage by gamma irradiation
- Jin Y.-Y.; Kyung J.K.; Park J.; Chung M.; Kwon K.; Chung K.; Won M.; Kyung B.S.
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- Food Science and Biotechnology
- Food Science and Biotechnology vol. 17, no. 4, pp. 861 - 864
- SCIE; SCOPUS; KCI
- Document Type
- Enterobacter sakazakii, Salmonella typhimurium, and Bacillus cereus were evaluated on inoculated infant formula by gamma irradiation treatment as a method to provide microbial safety. The infant formula inoculated with the major pathogenic bacteria was treated at irradiation dose of 0, 3, 5, and 10 kGy, respectively. After treatment, the samples were individually packaged and stored at 20°C. Microbiological data during storage represented that the populations of E. sakazakii, S. typhimurium, and B. cereus were reduced with the increase of irradiation dose by 4 to 5 log reductions. In particular, E. sakazakii, S. typhimurium, and B. cereus were eliminated at 10, 5, and 3 kGy, respectively. E. sakazakii was the most radiation-resistant, while B. cereus was the least. Our results represent that gamma irradiation below 10 kGy should eliminate the growth of the major pathogenic bacteria in infant formula during storage. © The Korean Society of Food Science and Technology.
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