Antimicrobial Effects of Camellia Japonica L. Leaves Extract on Food-borne Pathogenic Microorganisms

동백나무(Camellia japonica L.) 잎 추출물이 식품유해 미생물에 미치는 항균 효과

  • Hahn, Young-Sook (Department of Food and Nutrition, Sungshin Women's University)
  • 한영숙 (성신여자대학교 식품영양학과)
  • Published : 2005.02.28


Antimicrobial effects of Camellia japonica L. were determined against Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, and Listeria monocytogenes using paper disc method, and minimum inhibitory concentrations (MICs) were measured. Methanol extract (MEex), water fraction (WAfr), and butanol fraction(BUfr) showed antimicrobial effects against all tested microorganisms, with MEex showing strong antimicrobial effect against S. aureus and L. monocytogenes, and WAfr, Bufr, and ethylacetate fraction (EAfr)against S. aureus. No effects were observed in n-hexane fraction (HEfr) and chloroform fraction (CHfr) against all tested microorganisms. All species grown in the medium adding fractions of Camellia Japonica L. leaves extact were inhibited from WAfr and BUfr, repectively.(meaning not clear) MEex showed over 25% inhibitory effect against all tested microorganisms. BUfr showed over 50% inhibitory effect against all microorganisms except L. monocytogenes. EAfr and WAfr showed over 30% effect against S. aureus and L. monocytogenes. MICs of MEex against S. typhimurium and BUfr against S. aureus were 625 g/mL, indicating C. japonica L. extract can exert antimicrobial activity even at low concentration.


Camellia japonica L.;antimicrobial;methanol extract


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