외부 운반 학교급식의 미생물학적 품질 평가

Title
외부 운반 학교급식의 미생물학적 품질 평가
Other Titles
Assessment of Microbiological Quality of Outsourced School Meals
Author(s)
류경정현숙
Keywords
outsourced school meals; microbiological quality; time-temperature measurement
Issue Date
201211
Citation
대한영양사협회 학술지, v.18, no.4, pp.372 - 384
Abstract
The purpose of this study was to provide a basic resource for establishment of hygienic management standards for meal delivery from the central kitchen to schools. Flow diagrams for delivery of food were analyzed, and time-temperature conditions of the food and environment were measured. Four different foods samples including Mexican salad, radish salad, stir-fried pork and vegetables, and stir-fried chicken and vegetables were collected after production and before service. Microbiological analysis was performed for aerobic plate counts (APC), Enterobacteriaceae, coliforms, E. coli, Salmonella spp., S. aureus, B. cereus, C. perfringens, and L. monocytogenes. After completion of production of cooked foods 2∼3 hours were taken for the cooked foods to reach the temperature danger zone. Food temperatures at the meal service did not meet the recommended temperatures (10/57oC) for conventional school food service systems. The highest APC counts were observed in radish salad (5.70 log CFU/g), followed by Mexican salad (5.18 log CFU/g). Enterobacteriaceae and coliform counts were within acceptable levels of those recommended by the UK Public Health Laboratory Service. No E. coli or pathogens were found. These results provide useful information for determination of microbiological hazards in school food service systems, and suggest that time-temperature control during delivery is necessary for the safety of cooked foods.
URI
http://hdl.handle.net/YU.REPOSITORY/26919
ISSN
1225-9861
Appears in Collections:
생활과학대학 > 식품영양학과 > Articles
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