Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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The Microbiological Evaluation of Environments and Facilities at Food Service Operations in Elementary School

초등학교 단체급식 소의 환경과 급식설비에 대한 미생물 평가

  • 정동관 (고신대학교 식품영양학과) ;
  • 류은순 (고신대학교 식품영양학과)
  • Published : 2002.04.01
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Abstract

The microbiological examinations of food service operations were conducted for the hygienic evaluation at four elementary schools in Busan, Korea. Total one hundred and seventy two swabbed samples using sponge were collected from the surface of environments, utensils and equipments of food service facilities and analyzed by measuring the total, coliform and psychrotrophic count. Sampling sites were the surfaces of floors, drains, walls, knives, cutting boards, rubber gloves, vinyl aprons, plastic containers, carriers, shelves, trays, dry shelves, electric tray dryer, food containers, soup containers, rice cookers, frying pans, boiling cookers, refrigerators, dumb waiters and dishwashers. The swabbed samples kept in an ice-parked box were transported to a laboratory and analyzed. The results demonstrated that the degree of contamination depended on the sampling sites. Averages of total counts of surface swab samples were ranged from 0.62 to 7.79 Log CFU/200 cm$^2$. The level of coliforms were ranged from not detectable to 5.26 Log CFU/200 cm$^2$, and those of psychrotrophs from not detectable to 6.15 Log CFU/200 cm$^2$. The severely contaminated sites were dumb waiters, drains, rice cookers, knives, plastic containers and floors. Also cutting boards, rubber gloves, carriers, drying shelves, vinyl aprons, boiling cookers, soup containers, frying pans and refrigerators were highly contaminated with the level of abode 3.5 Log CFU/200 cm$^2$. Therefore, those sites should be focused and controlled according to control points of sanitation standard operating procedures (SSOP). Also, periodic microbiological examination in addition to visual examination is recommended on these highly contaminated sites indicated above results at food service operations in elementary school.

부산시내 초등학교 4곳을 방문하여 급식소 환경 , 기계, 기구에 대해 HACCP 적용시 중점관리점을 파악하기 위하여 위생평가를 실시하였다. 환경에 대한 위해 요소분석 결과 위해도가 높은 지역과 낮은 지역이 확실히 드러났으며 위생에 특별한 주의를 기울여야 할 장소가 확인되었다. 위생평가시 조사한 21곳의 시료장소 중에서 급식소의 바닥과 스테인레스 스틸제재로 된 배수설비 표면에서 높은 수의 세균과 대장균 군이 관찰되었다. 또한 덤웨이터에서 가장 높은 수의 세균과 대장균군이 발견되었고 밥통, 칼, 도마, 고무장갑, 운반대, 비닐앞치마, 플라스틱 소쿠리, 프라이 팬, 냉장고내부에서도 높은 수의 미생물이 검출되었으며 특히 기구들을 건조시키는 공기건조대에서도 오염도가 심해 특별히 관리 해야되는 부분으로 확인되었다. 또한 급식소의 내부에서 사용되는 물건 중 스테인레스 스틸로 만들어진 운반대, 선반, 식판, 국통 등에서도 단위면적당 수천 마리의 미생물이 오염된 것으로 나타나 용기를 통한 식중독균의 오염이 우려되고 있다. 따라서 단체 급식소의 HACCP의 적용에 앞서 이들 장소에 대해 위생표준 관리기준(SSOP)에 의한 중점관리가 수행되어져야 하며 주기적인 미생물 검사를 실시하여 미생물의 오염상태를 점검해야 할 것이다. 또한 주방기구나 용기는 이물질을 먼저 제거하고 세척제를 사용하여 세척한 다음 소독제를 사용한 소독을 실시한 후 말려 재사용하는 방법 이 철저히 적용되어야 할 것이다.

Keywords

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