Environmental Microbial Assessment of Food Services at Elementary Schools in Western Gyeongnam Pyovince

서부 경남 지역 초등학교 급식소에서의 환경미생물 평가

  • 박선자 (경상대학교 농업명과학원) ;
  • 하광수 (식품의약품안전청 식품평가부) ;
  • 심원보 (경상대학교 식품공학과) ;
  • 박민경 (경상대학교 식품공학과) ;
  • 정덕화 (경상대학교 식품공학과)
  • Published : 2003.03.01

Abstract

Two aims of the present study were the evaluation of hygienic, microbial safety on food services of elementary schools in Western Gyeongnam province, and then, the construction of database for the SSOP (Sanitation Standard Operation Procedures) practice. A total of 98 samples were collected from drinking water, waterworks, kitchen utensils, kitchen equipments, employees and cooked foods. Total bacteria was counted and pathogenic bacteria such E. coli, salmonella, yersinia, vibrio parahaemolyticus and staphylococcus were identified based on the biochemical analysis. Following are the results: the number of bacteria showed from 1.0x10$^2$CFU/ mL to 1.0x10$^{6}$ CFU/mL in most samples, which the level exceeds normal range. Over 1.0x10$^{5}$ CFU/ml bacteria were observed from the kimchi in 4 places (B, C, D, E), because cooked food such as kimchi had not been heated. As a rule, the bacterium level in place B was higher than that in any of the other places. E-coli were isolated from kitchen knives (C, E) and Kimchi (E): staphylococci were isolated from drinking water (A), hands (D), refrigerator (E) and apron (E). But, salmonella, vibrio and yersinia were not detected in anywhere. In conclusion, the presence of bacteria and pathogenic agents in school food service was closely related to hygienic practice. For that reason, it is necessary to have more systematic and efficient management in order to enhance the food safety.

본 연구의 두 가지 목적은 서부경남지역 초등학교 급식환경에 대한 위생학적, 미생물학적 안전성 평가와 SSOP (Sanitation Standard Operation Procedures)실천을 위한 자료구축이다. 식수와 상수원수, 조리, 배식도구, 주변기구, 조리종사자와 조리된 음식으로부터 총 97개의 시료를 채취하여 일반세균, E. coli, salmonella, yersinia, vibrio parahaemolyticus, staphylococcus와 같은 각종 병원성균에 대한 생화학적 분석을 하였다. 조사 결과 일반 세균수는 최저 1.0x$10^2$CFU/ mL 에서 최고 1.0x$10^{7}$ CFU/mL로 식품 안전성 수준을 초과하였다. 특히 조리된 식품에 있어서는, 4곳의 가열 공정 과정을 거치지 않은 김치에서 1.0x$10^{5}$ CFU/mL 이상의 일반세균이 검출되었다. 전반적으로, B장소의 일반 세균수가 다른 장소들에 비하여 높았다. 또한 병원성 미생물 수준에 있어서는 C와 E 급식소의 칼과 E 급식소의 김치에서 E. coli가 분리되었으며, A 급식소의 식수, D 급식소의 손, E 급식소의 냉장고와 앞치마에서는 황색포도상구균이 검출되었다. 반면 salmonella, vibrio와 yersinia는 어느 시료에서도 검출되지 않았다. 결과적으로, 학교 급식에서 일반 세균과 병원성 미생물이 존재하는 것은 위생 실천과 밀접하게 연관되어 있으며, 학교 급식소에서 이러한 미생물 오염을 감소시키기 위해서는 보다 체계적이고 효율적인 위생관리가 요망된다.

Keywords

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