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Antimicrobial Effect of Ethanol Extracts of Quercus spp. against Foodborne Pathogens

병원성 식중독 미생물에 대한 참나무과 식물 부위별 에탄올 추출물의 항균효과

  • 윤재원 (강원대학교 바이오산업공학부) ;
  • 유미영 (강원대학교 바이오산업공학) ;
  • 박부길 (강원대학교 바이오산업공학) ;
  • 이명구 (강원대학교 산림과학대학 제지공학) ;
  • 오덕환 (강원대학교 바이오산업공학부)
  • Published : 2004.03.01

Abstract

This study was conducted to determine the antimicrobial effect of leaf, bark and xylem of 6 kinds of Quercus spp. against food borne disease bacteria. All of the samples tested showed the antimicrobial effect against food borne disease bacteria. Bacillus cereus, Listeria monocytogenes, and Staphylococcus aureus was more sensitive than gram negative bacteria such as Salmonella typhimurium and Escerichia coli O157:H7, but no antimicrobial activity was observed against yeast and molds. Based on antimicrobial activity for kinds of Quercus spp., the antimicrobial activities of Quercus aliena Blume, Quercus mongolica Fisch, and Quercus dentata Thunb were stronger than those of Quercus variebilis Blume, Quercus serrata Thunb, and Quercus acutissima Carruth. In the meantime, the ethanol extract of Quercus spp. leaves showed the strongest antimicrobial activity compared to that of bark and xylem. Especially, the ethanol extract of Quercus aliena Blume leaf showed the strongest antimicrobial effect against foodborne disease bacteria among 6 kinds of Quercus spp.

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