Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Biological Hazard Analysis of Angelica gigas Nakai on Production and Marketing Steps

당귀의 재배 및 유통과정 중 생물적 위해요소 분석

  • Park, Kyeong-Hun (Microbial Safety Team, National Academy of Agricultural Science, RDA) ;
  • Kim, Byeong-Seok (Microbial Safety Team, National Academy of Agricultural Science, RDA) ;
  • Lee, Jeong-Ju (Microbial Safety Team, National Academy of Agricultural Science, RDA) ;
  • Yun, Hye-Jeong (Experiment Research Institute. National Agricultural Products Quality Management Service) ;
  • Kim, Se-Ri (Microbial Safety Team, National Academy of Agricultural Science, RDA) ;
  • Kim, Won-Il (Microbial Safety Team, National Academy of Agricultural Science, RDA) ;
  • Yun, Jong-Chul (Microbial Safety Team, National Academy of Agricultural Science, RDA) ;
  • Ryu, Kyoung-Yul (R&D Performance Evaluation and Management Division, Research Policy Bureau, RDA)
  • 박경훈 (국립농업과학원 유해생물팀) ;
  • 김병석 (국립농업과학원 유해생물팀) ;
  • 이정주 (국립농업과학원 유해생물팀) ;
  • 윤혜정 (농산물품질관리원 시험연구소) ;
  • 김세리 (국립농업과학원 유해생물팀) ;
  • 김원일 (국립농업과학원 유해생물팀) ;
  • 윤종철 (국립농업과학원 유해생물팀) ;
  • 류경열 (농촌진흥청 연구성과관리과)
  • Received : 2012.11.15
  • Accepted : 2012.11.27
  • Published : 2012.12.31
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Abstract

This study is aimed to investigate microbiological contamination of Angelica gigas Nakai. A total of 111 samples including root, soil, and irrigation water were collected from farms and market to detect aerobic bacteria, Bacillus cereus, coliform, Escherichia coli, Listeria monocytogenes,. Salmonella spp., and Staphylococcus aureus. The contaminations of aerobic bacteria, coliform, and Bacillus cereus in the root during cultivation were found 6.71 log CFU $g^{-1}$, 4.13 log CFU $g^{-1}$, and 3.54 log CFU $g^{-1}$, respectively. The contamination of coliform and B. cereus were detected in all steps from harvesting to processing, with the highest count recorded from the cutting step. In marketing, the contaminations of aerobic bacterial, coliform, and B. cereus were 5.5~6.0 log CFU $g^{-1}$, 2.4~2.6 log CFU $g^{-1}$, and 3.5~4.0 log CFU $g^{-1}$, respectively. Listeria monocytogenes, Salmonella spp, and Staphylococcus aureus were not detected in any of samples. This result indicated that hygienic soil management and post harvest management should be performed to reduce the contamination of hazard microorganisms and to produce safe agro-products.

재배과정, 수확, 가공 및 유통 단계에서 당귀의 미생물적 위해요소를 조사하였다. 뿌리, 토양 및 관개수를 포함한 111개의 시료가 생산과정과 유통과정에서 호기성균, B. cereus, coliform, E. coli, L. monocytogenes, Salmonella spp., 와 S. aureus를 조사하기 위해 수집하였다. 재배과정에서 당귀의 뿌리에서 일반세균수는 6.71 log CFU $g^{-1}$ 수준으로 검출되었으며, 대장균군은 4.13 log CFU $g^{-1}$, B. cereus는 3.54 log CFU $g^{-1}$ 수준으로 확인되었다. 수확에서 가공 단계까지 모든 가공 과정에서 대장균군과 B. cereus의 오염을 확인할 수 있었으며, 절단 과정에서 미생물오염도가 높게 확인 되었다. 유통과정 중인 당귀에서 일반세균수는 5.6~6.0 log CFU $g^{-1}$, 대장균군은 2.4~2.6 log CFU $g^{-1}$, B. cereus는 5.4~6.0 log CFU $g^{-1}$ 수준으로 검출되었다. 모든 시료에서 L. monocytogenes, Salmonella spp., S. aureus는 검출되지 않았다. 이러한 결과는 유해미생물의 오염을 감소시키고, 안전한 농산물을 생산하기 위하여 위생적인 토양관리 및 수확 후 관리가 수행되어야 하는 것을 의미한다.

Keywords

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