The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Antimicrobial Activity of Grapefruit Seed Extract

자몽 종자 추출물의 항균성

  • Park, Heon-Kuk (Department of Food and Nutritiion, Dongnam Health College) ;
  • Kim, Sang-Bum (Agriproduct Processing Division, Rural Resources Development Institute)
  • 박헌국 (동남보건대학 식품영양과) ;
  • 김상범 (농촌자원개발연구소 농산물가공이용과)
  • Published : 2006.12.31
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Abstract

Minimum inhibition concentration(MIC), growth inhibition activity, and colony forming inhibitory activity of grapefruit seed extract against Bacillus cereus, Bacillus subtilis, Listeria monocytogenes, Escherichia coli, Salmonella enterifidis and Serratia marcescens were tested. MIC of grapefruit seed extract against Bacillus cereus, Bacillus subtilis, Listeria monocytogenes, Escherichia coli, Salmonella enteritidis and Serratia marcescens was 12.5, 12.5, 12.5, 50, 50, 100ppm, respectively. Growth inhibition concentration of grapefruit seed extract against Bacillus cereus, Bacillus subtilis, Listeria monocytogenes, Escherichia coli, Salmonella enteritidis and Serratia marcescens was below 1.0, 6.25, below 1.0, 6.25, 25, 25ppm, respectively. Colony forming inhibitory activity of grapefruit seed extract against Bacillus cereus, Bacillus subtilis, Listeria monocytogenes, Escherichia coli, Salmonella enteritidis and Serratia marcescens was 93.9, 94.0, 99.9, 4.4, 82.7, 86.4%, respectively. Colony forming inhibitory activities of grapefruit seed extract against Gram positive bacteria were higher than that against Gram negative bacteria.

자몽 종자 추출물의 항균성을 조사하기 위하여 그람 양성균인 Bacillus cereus, Bacillus subtilis, Listeria monocytogenes와 그람 음성균인 Escherichia coli, Salmonella enteritidis, Serratia marcescem를 대상으로 하여 최소 저해 농도, 생육 저해 활성, 콜로니 형성 저해 활성을 실험하였다. 그람 양성균에 대한 자몽 종자 추출물의 최소 저해 농도는 12.5 ppm정도로 상대적으로 낮았으며, 그람음성균의 최소저해 농도는 50ppm 이상으로 상대적으로 높았다. 균주의 증식에 대한 생육 저해 활성을 조사한 결과 Bacillus cereus는 1ppm 이하, Bacillus subtilis는 6.25 ppm, Listeria monocytogenes는 1ppm 이하, Escherichia coli는 6.25 ppm, Salmonella enteritidis는 25 ppm Serratia marcescem는 25pp부터 생육이 저해되었다. 그람 양성균의 콜로니 형성 저해활성은 Bacillus cereus는 93.9%, Bacillus subtilis는 94.0%, Listeria monocytogenes는 99.9%, 그람 음성균의 콜로니 형성 저해 활성은 Escherichia coli는 4.4%, Salmonella enteritidis는 82.7%, Serratia marcesem는 86.4%로, 그람 양성균에 대해서는 높은 저해 활성을 보였으며, 그람 음성균에 대해서는 비교적 낮은 저해 활성을 보였다.

Keywords

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