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http://dx.doi.org/10.3746/jkfn.2009.38.2.252

Microbiological Evaluation of Foods and Kitchen Environments in Childcare Center and Kindergarten Foodservice Operations  

Seol, Hye-Rin (Dept. of Food Science & Technology, Chung-Ang University)
Park, Hyoung-Su (Dept. of Food Science & Technology, Chung-Ang University)
Park, Ki-Hwan (Dept. of Food Science & Technology, Chung-Ang University)
Park, Ae-Kyung (Dept. of Childhood Education, Dongnam Health College)
Ryu, Kyung (Dept. of Food & Nutrition, Yeungnam University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.38, no.2, 2009 , pp. 252-260 More about this Journal
Abstract
Whereas the numbers of childcare centers and kindergartens are increasing rapidly, systematic management to control the food safety of foodservice operation is not yet well established. Samples from 12 centers in Seoul and Gyeonggi Province were collected to assess the microbiological quality of 32 raw materials, 24 cooked foods, 76 food-contact surfaces (knives, cutting boards, dish towels and gloves), 17 employees' hands and 12 air-borne bacteria. The microbiological analyses were performed for aerobic plate counts (APC), Enterobacteriaceae, E. coli and 7 pathogens (B. cereus, C. jejuni, C. perfringens, L. monocytogenes, Salmonella spp., S. aureus, and V. parahaemolyticus). Among raw materials, E. coli ($1.39{\sim}2.08\;\log\;CFU/g$) were detected in 4 out of 6 meats and 7.46 log CFU/g of APC in tofu. High enterobacteriaceae levels of 4.23, 5.14 and 4.19 log CFU/g were found in cucumber salad, steamed spinach with seasonings and steamed bean sprout with seasonings, respectively. No pathogens were found in all samples except for C. perfringens detected from raw spinach and raw lotus root. Only APC and enterobacteriaceae were found in food-contact surfaces. Two of the 23 knives and three of the 24 kitchen boards showed over 500 CFU/$100\;cm^2$ of APC; also, APC levels (5.03 to 5.44 log CFU/g) were detected in 4 of the 12 dish towels. Only one glove showed Enterobacteriaceae (2.44 log CFU/glove) contamination. Enterobacteriaceae were found in 2 employees' hands ($2.37{\sim}4.44\;\log\;CFU$/hand) among the 16 employees. The contamination levels of air-borne bacteria were shown unacceptable in two (2.25 and 2.30 log CFU/petri-film/15 min) out of the 12 kitchen areas. These results suggest that the microbiological hazards in some foods and environments are not well controlled and thus a guideline should be provided to ensure the food safety in childcare center and kindergarten foodservice operations.
Keywords
childcare center; kindergarten; food safety; microbiological quality; hazards;
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Times Cited By KSCI : 7  (Citation Analysis)
Times Cited By SCOPUS : 4
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