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Microbial Contamination by Bacillus cereus, Clostridium perfringens, and Enterobacter sakazakii in Sunsik  

Lee, Eun-Jin (Department of Food Science and Biotechnology, Kyungwon University)
Kim, Sung-Gi (Department of Food and Animal Biotechnology, Seoul Natipnal University)
Yoo, Sang-Ryeol (Department of Food and Animal Biotechnology, Seoul Natipnal University)
Oh, Sang-Suk (Department of Food and Nutrition, Ewha Womans University)
Hwan, In-Gyun (Department of Food Microbiology, Korea Food and Drug Administration)
Kwon, Gi-Sung (Department of Food Microbiology, Korea Food and Drug Administration)
Park, Jong-Hyun (Department of Food Science and Biotechnology, Kyungwon University)
Publication Information
Food Science and Biotechnology / v.16, no.6, 2007 , pp. 948-953 More about this Journal
Abstract
The powdered cereal sunsik is a partially thermal-processed product that required safety evaluations for food-borne pathogens. Thirty-six sunsik products from Korean markets were collected and analyzed for contamination by total viable cell counts, coliforms, Escherichia coli, and the spore-forming Clostridium perfringens and Bacillus cereus. Enterobacter sakazakii, as a newly emerging pathogen, was also analyzed. Approximately 28% of sunsik were contaminated at 5 log CFU/g for total viable counts. Coliforms and E. coli were detected in 33 and 4% of the samples, respectively. The spore-forming B. cereus was found in 42% of the samples at a maximal level of 3 log CFU/g on average. About 6% the samples were contaminated with Cl. perfringens at an average level of 15 CFU/g. Forty-five % of sunsik contained E. sakazakii, at levels from 0.007 to over 1.1 cell/g by MPN method. In addition, one sunsik product for infants and children showed over 3 log CFU/g for both B. cereus and E. sakazaki. Therefore, concern should be placed on controlling for microbial hazards such as B. cereus and E. sakazakii in sunsik, particularly for the products fed to infants under 6 months of age.
Keywords
sunsik; ready-to-eat; microbial contamination; Bacillus cereus; Clostridium perfringens; Enterobacter sakazakii;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
Times Cited By Web Of Science : 9  (Related Records In Web of Science)
Times Cited By SCOPUS : 9
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