Biofilm Formation of Food-borne Pathogens under Stresses of Food Preservation

식품 보존 스트레스에서의 식중독세균의 생체막 생성

  • Lee, No-A (Department of Food and Bioengineering, Kyungwon University) ;
  • Noh, Bong-Soo (Department of Food and Microbial Technology, Seoul Woman's University) ;
  • Park, Jong-Hyun (Department of Food and Bioengineering, Kyungwon University)
  • 이노아 (경원대학교 분자.식품생명공학과) ;
  • 노봉수 (서울여자대학교 식품미생물공학과) ;
  • 박종현 (경원대학교 분자.식품생명공학과)
  • Published : 2006.02.01

Abstract

Most bacteria form biofilm as self-defence system, making efficient food sanitization, preservation, and instrument washing more difficult. Biofilm formation of Salmonella, E. coli, B. cereus, and S. aureus was observed during 24 hr food preservations by performing microtiter plate and glass wool assays. Most cells formed biofilm and attached onto glass wool. When biofilm formation and injury were analyzed on the microtiter plate, 10 and 20% acid-injured E. coli and S. aureus, respectively, 30-50% cold temperature $(4^{\circ}C)-injured$ B. cereus and E. coli, and 30-55% 6% sodium chloride solution-injured Salmonella showed significant biofilm formation. Results indicate biofilm formation level differed within species depending on type of stress.

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