Screening of Staphylococcus aureus and Staphylococcal Enterotoxin a, b, c gene in Strains Isolated from Strawberry Farms in Western Gyeongnam

서부 경남지역 딸기 농장에서의 Staphylococcus aureus의 분리와 Staphylococcal enterotoxin a, b, c gene 검색

  • Kim, Se-Ri (Division of Applied Life Science, Gyeongsang National University) ;
  • Shim, Won-Bo (Division of Applied Life Science, Gyeongsang National University) ;
  • Kim, Ji-Hun (Division of Applied Life Science, Gyeongsang National University) ;
  • Hwang, Seung-Jae (Division of Applied Life Science, Gyeongsang National University) ;
  • Park, Seon-Ja (Department of Anatomy, College of Medicine, Gyeongsang National University) ;
  • Ha, Sang-Do (Department of Food Science and Technology, Chung-Ang University) ;
  • Kim, Keun-Sung (Department of Food Science and Technology, Chung-Ang University) ;
  • Lee, Kyu-Ho (Department of Environmental Engineering and Biotechnology, Hankuk Univ. of Foreign Studies) ;
  • Kim, Min-Gon (Laboratory of Integrative Biotechnology, Korea Research Institute of Bioscience and Biotechnology) ;
  • Kim, Kwang-Yup (Department of Food Science and Technology, Chungbuk University) ;
  • Kim, Cheol-Ho (Department of Biochemistry and Molecular Biology, College of Oriental Medicine, Dongguk University) ;
  • Chung, Duck-Hwa (Division of Applied Life Science, Gyeongsang National University)
  • Published : 2005.04.30

Abstract

Staphylococcus aureus is spread worldwide and can result in food poisoning outbreaks. Among samples collected from soil, water, protected houses, packing houses, employees, strawberries, and leaves, and analyzed for S. aureus contamination, 16% samples 'showed S. aureus contamination, particularly on employees' hands, scissors, and strawberries. Examination of enterotoxins A, B, and C genes of S. aureus by PCR revealed sea and seb in 92 and 38% of total strains, respectively, whereas sec was not detected. In conclusion, implementation of Good Agricultural Practice is necessary for preventing food-borne diseases of staphylococcal origin, thereby ensuring the safety of farm-to-table products.

본 연구는 서부경남지역 딸기 농장 세 곳에서 Staphylococcus aureus를 검색하기 위하여 수행하였다. 본 연구를 위하여 각 농장의 토양과 수질, 재배시설, 포장시설, 작업자 그리고 딸기와 잎으로부터 총 71점의 시료를 채취하였다. 채취된 시료 중 16%의 시료가 Staphylococcus aureus에 오염되어 있는 것으로 나타났으며 이들 균들이 내열성 독소인 enterotoxin A, B, C를 생성할 수 있는 gene의 유무를 확인하기 위하여 PCR를 수행하였다. 그 결과 분리된 균주의 92%가 sea gene을 가지는 것으로 나타났으며 seb gene의 경우는 분리된 균주의 38%에서 나타났다. 그러나 sec를 생성하는 균주는 없었다. 따라서 딸기의 미생물학적 오염을 예방하기 위해서는 체계적인 위생관리 시스템인 운수농산물관리제도(GAP)를 도입해야 할 것으로 사료된다.

Keywords

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