Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Evaluation of Dry Rehydratable Film Method for Enumeration of Microorganisms in Meat, Dairy and Fishery Products

축.수산식품 중 미생물 분석을 위한 건조필름법 평가

  • 조미희 (연세대학교 생명공학과) ;
  • 배은경 (연세대학교 생명공학과) ;
  • 하상도 (중앙대학교 식품공학과) ;
  • 박영서 (경원대학교 식품생물공학과) ;
  • 목철균 (경원대학교 식품생물공학과) ;
  • 홍관표 (한국쓰리엠주식회사) ;
  • 김상필 (한국쓰리엠주식회사) ;
  • 박지용 (연세대학교 생명공학과)
  • Published : 2005.04.30
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Abstract

Contents of total aerobic bacteria, coliform, Escherichia coli, yeast, mold, and Staphylococcus aureus in meat, dairy, and fishery products were analyzed by dry rehydratable film method using 3M $Petrifilm^{TM}$ and compared against those obtained through conventional method. Two methods showed high correlations of 0.990-0.999, 0.975-0.999, 0.979-0.987, 0.978-0.984, and 0.999 for total aerobic bacteria, yeast and mold, coliform, E. coli, and S. aureus, respectively; therefore, dry rehydratable film method using 3M $Petrifilm^{TM}$ offers acceptable alternative to conventional method for enumeration of microorganisms in meat, dairy, and fishery products.

식품의 안전성 평가에 사용되는 주요 지표 미생물들의 검출 시험법 중에서 전통적인 미생물 시험법과 신속 검출법인 건조 필름법에 의한 미생물 시험법 간의 유효성 관계를 국내 특정 축 수산식품에 존재하는 미생물을 대상으로 분석하였다. 축 수산식품 중 어묵, 게맛살, 아이스크림, 우유, 햄 시료에 대하여 두 가지 미생물 시험법을 각각 실시하였다. 일반 세균수 분석에는 plate count agar법과 $Petrifilm^{TM}$ aerobic count plate법을 비교하였고, 대장균군과 대장균의 분석에는 most probable number(MPN)법과 $Petrifilm^{TM}$ coliform count plate 및 $Petrifilm^{TM}$ E. coli/coliform count plate법을 각각 비교하였으며, 효모와 곰팡이의 분석에는 potato dextrose agar법과 $Petrifilm^{TM}$ yeast and mold count plate법을 비교하였다. 황색포도상구균의 분석에는 coagulase 시험법과 $Petrifilm^{TM}$ staph express count plate법을 비교하였다. 5가지 축 수산식품에 대한 두 방법들간 상관계수는 일반세균이 $0.990{\sim}0.999$, 대장균군이 0.979-0.987, 대장균이 0.978-0.984, 효모와 곰팡이가 0.975-0.999, 황색포도상구균이 0.999로 두 방법간 상관성이 매우 높았으며, 평균 미생물 수에 있어서도 유의적인 차이가 없는 것으로 확인되었다. 이상의 결과로부터 건조필름법이 기존의 전통적인 시험 방법을 대체할 수 있는 미생물 분석법임이 확인되었다.

Keywords

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