Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Microbial Hazard Analysis of Astragalus membranaceus Bunge for the Good Agricultural Practices

농산물우수관리를 위한 황기(Astragalus membranaceus Bunge)의 미생물학적 위해요소 분석

  • Kim, Yeon Rok (Microbial Safety Team, Department of Agri-Food Safety, National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Kyoung Ah (Microbial Safety Team, Department of Agri-Food Safety, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Se-Ri (Microbial Safety Team, Department of Agri-Food Safety, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Won-Il (Microbial Safety Team, Department of Agri-Food Safety, National Academy of Agricultural Science, Rural Development Administration) ;
  • Ryu, Song Hee (Microbial Safety Team, Department of Agri-Food Safety, National Academy of Agricultural Science, Rural Development Administration) ;
  • Ryu, Jae-gee (Microbial Safety Team, Department of Agri-Food Safety, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Hwang-Yong (Microbial Safety Team, Department of Agri-Food Safety, National Academy of Agricultural Science, Rural Development Administration)
  • 김연록 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 이경아 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 김세리 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 김원일 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 류송희 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 류재기 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀) ;
  • 김황용 (농촌진흥청 국립농업과학원 농산물안전성부 유해생물팀)
  • Received : 2014.05.08
  • Accepted : 2014.09.03
  • Published : 2014.09.30
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Abstract

The objective of this study was to analyze the microbiological hazards of Astragalus membranaceus Bunge on the post-harvest processing. Samples from processing equipments (cleaner, water, cart, table, tray and packaging machine), personal hygiene (hand) and harvested crops (before washing, after washing, after sorting, and after drying) were collected from four farms (A, B, C, and D) located in Chungchengbuk-do, Korea. The samples were analyzed for sanitary indication bacteria and pathogenic bacteria. First, total aerobic bacteria and coliform in processing facilities were detected at the levels of 0.93~4.86 and 0.33~2.28 log CFU/$100cm^2$ and/mL respectively. In particular, microbial contamination in hand (5.43~6.11 and 2.52~4.12 log CFU/Hand) showed higher than processing equipments. Among the pathogenic bacteria, Bacillus cereus was detected at the levels of 0.33~2.41 log CFU/$100cm^2$, 1.48~3.27 log CFU/Hand and 0.67~3.65 log CFU/g in equipments, hands, and plants and Staphylococcus aureus were detected in cleaner, table, hand and harvested crops (before washing and after sorting) by qualitative test. Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella spp. were not detected. These results indicated that personal hygiene and processing equipments should be managed to reduce the microbial contamination of A. membranaceus Bunge. Therefore, management system such as good agricultural practices (GAP) criteria is needed for hygienic agricultural products.

본 논문은 황기재배 농가의 미생물학적 위해요소를 분석하였다. 충북 제천소재의 4곳의 농가를 선정하여 수확 후 처리 설비 (세척기, 세척수, 손수레, 선별 작업대, 건조선반, 결속기), 작업자의 손 및 수확 후 처리 단계별 황기(세척 전, 세척 후, 선별 후, 건조 후)로부터 샘플을 채취하여 위생지표세균과 병원성 미생물에 대한 오염도를 조사하였다. 수확 후 처리 설비의 총 호기성 세균과 대장균 군은 각각 0.93~4.86, 0.33~2.28 log CFU/$100cm^2$, mL의 수준으로 검출되었으며, 작업자의 손에 대한 미생물의 오염도는 5.43~6.11, 2.52~4.12 log CFU/Hand로 수확 후 처리설비보다 높게 검출되었다. 병원성 미생물에 대한 연구결과, B. cereus가 수확 후 처리 설비, 작업자의 손, 황기에서 각각 0.33~2.41 log CFU/$100cm^2$, mL, 1.48~3.27 log CFU/Hand, 0.67~3.65 log CFU/g으로 측정되었다. 정량분석에서는 S. aureus가 측정되지 않았지만, 정성분석에 의해 세척기, 작업대, 작업자의 손, 황기 (세척 전, 선별 후)에서 검출되었다. 본 연구에서 황기의 수확 후 처리 설비와 황기에서의 미생물학적 오염도를 측정한 결과, 개인 위생 및 작업시설의 위생상태를 청결하게 유지하여 교차오염을 방지해야 할 필요가 있는 것으로 판단된다.

Keywords

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