Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Effects of Small Scale Post-Harvest Facility and Hygiene Education on the Level of Microbial Safety in Korean Leeks Production

영양부추 생산농가의 소규모 수확후 처리시설 적용과 위생교육에 따른 미생물학적 안전성 향상 효과

  • Kim, Se-Ri (Microbial Safety Team, Agro-Food Safety & Crop Protection Department, NAAS, RDA) ;
  • Kim, Jin-Bae (Technology Services Team, Agro-Food Safety & Crop Protection Department, NAAS, RDA) ;
  • Lee, Hyo-Sup (Microbial Safety Team, Agro-Food Safety & Crop Protection Department, NAAS, RDA) ;
  • Lee, Eun-Sun (Microbial Safety Team, Agro-Food Safety & Crop Protection Department, NAAS, RDA) ;
  • Kim, Won-Il (Microbial Safety Team, Agro-Food Safety & Crop Protection Department, NAAS, RDA) ;
  • Ryu, Song-Hee (Microbial Safety Team, Agro-Food Safety & Crop Protection Department, NAAS, RDA) ;
  • Ha, Jihyung (Microbial Safety Team, Agro-Food Safety & Crop Protection Department, NAAS, RDA) ;
  • Kim, Hwang-Yong (Microbial Safety Team, Agro-Food Safety & Crop Protection Department, NAAS, RDA) ;
  • Ryu, Jae-Gee (Microbial Safety Team, Agro-Food Safety & Crop Protection Department, NAAS, RDA)
  • 김세리 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 김진배 (농촌진흥청 국립농업과학원 기술지원팀) ;
  • 이효섭 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 이은선 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 김원일 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 류송희 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 하지형 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 김황용 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 류재기 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀)
  • Received : 2015.05.31
  • Accepted : 2015.08.18
  • Published : 2015.09.30
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Abstract

The purposes of this study were to develop a small scale post-harvest facility, and consequently to evaluate the effects of applying the facility along with hygiene education on the level of microbial safety in Korean leeks production. A total of 135 samples were collected at three Korean leeks farms in Yangju, Gyeonggi province. Food safety indicators (Aerobic plate count (APC), coliform count, and Escherichia coli) and foodborne pathogens (E. coli O157:H7, Salmonella spp., Staphylococcus aureus, Listeria monocytogenes, and Bacillus cereus) on/in the samples were assessed. The microbial load measured as APC with harvesting tools such as comb, chopping board, and knife, at the farms where the small scale post-harvest facility had been operated (Farms A and B) was lower than that at another farm having no post-harvest facility (Farm C) by 1.44~2.33 log CFU / $100cm^2$. Moreover, the chopping board from Farm C was observed being contaminated with B. cereus at 6.03 log CFU / $100cm^2$. The coliform counts from the samples increased by 0.57~1.89 log CFU/g after leeks was submerged in ground water for washing. E. coli was recovered from leeks, soil, and the ground water used in the washing process, while no E. coli O157:H7, Salmonella spp., and L. monocytogenes was detected. Our results indicated that the small scale post-harvest facility developed in this study as well as the hygiene education played an important role in enhancing the level of microbial food safety in the leeks production environment. However, a disinfection technique could be needed during the washing step in order to prevent a potential contamination.

위생적인 수확후처리를 통하여 안전한 농산물 생산을 유도하기 위하여 영양부추를 대상으로 수확후 처리시설 모델을 개발하였으며 개발된 수확후 처리시설 설치와 위생교육이 미생물 안전에 미치는 효과를 검증하고자 본 연구를 수행하였다. 이를 위하여 양주지역 영양부추 생산 농가의 수확 후 처리시설 환경과 영양부추에서 위생지표세균(일반세균수, 대장균군, E. coli)과 병원성미생물(Escherichia coli O157:H7, Salmonella spp., Staphylococcus aureus, Listeria monocytogenes, Bacillus cereus)을 조사하였다. 그 결과, 빗, 칼, 도마 등 수확후 처리시설에서 사용하는 작업도구의 일반세균수 오염수준은 수확후 처리시설 설치농가(A, B)에서 수확후 처리시설 비설치농가(C) 보다 1.44~2.33 log CFU / 100$100cm^2$ 정도 낮았다. 특히 도마의 경우 A농가에서 1.00 log CFU / 100$100cm^2$이하, B 농가에서 2.23 log CFU / $100cm^2$인데 반해 C 농가에서는 6.03 log CFU / $100cm^2$로 농가간의 위생 상태에 따라 B. cereus의 오염수준이 차이가 크게 나타났다. 또한 지하수에 침지 한 영양부추에서 침지 전 보다 대장균군이 0.57~1.89 log CFU/g이 증가하였다. E. coli는 영양부추, 침지한 후 지하수, 토양에서 검출되었으며, E. coli O157:H7, Salmonella spp., L. monocytogenes는 검출되지 않았다. 따라서 본 연구의 결과를 통하여 소규모 수확 후 처리시설 설치와 위생교육을 통하여 농가 내 수확후처리 환경의 위생을 개선하는데 효과적이라 판단된다. 이와 더불어 유해미생물에 의한 식중독사고를 사전에 예방하기 위해서는 수확 후에 오염된 유해미생물을 저감화 할 수 있는 세척, 소독 기술의 개발과 도입이 필요할 것으로 사료된다.

Keywords

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