Biomedical Science Letters (대한의생명과학회지)

The Korean Society for Biomedical Laboratory Sciences (대한의생명과학회)
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Antibacterial Activity of Puer Tea Extract on Pathogenic Microorganisms

  • Kim, Hyo-Jeong (Department of Biology, College of Natural Sciences, Keimyung University) ;
  • Kim, Su-Won (Department of Biology, College of Natural Sciences, Keimyung University) ;
  • Baek, Sun-Ah (Department of Biology, College of Natural Sciences, Keimyung University) ;
  • Kim, Jong-Won (Department of Biology, College of Natural Sciences, Keimyung University) ;
  • Yoo, Min (Department of Biology, College of Natural Sciences, Keimyung University)
  • Received : 2011.03.22
  • Accepted : 2011.03.24
  • Published : 2011.03.31
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Abstract

We have analyzed 11 different commercial brands provided by Daboo Culture and Art Center. This study was carried out to determine the antibacterial activity of water extract from puer tea ingredients against Staphylococcus aureus (S. aureus) and Listeria monocytogenes (L. monocytogenes). Antibacterial activity of the water extracts was shown against S. aureus and L. monocytogenes by paper disc method. In case of S. aureus, antibacterial activity of the extracts appeared as clear inhibitory zone. This antibacterial activity was greater along with pH and showed the highest effect at pH 10. In case of L. monocytogenes, antibacterial activity of the extract appeared as clear inhibitory zone. Some Puer tea appeared to be more powerful in antibacterial activity against S. aureus and L. monocytogenes. The polyphenol compounds were 3.46~8.68%, depending upon samples. In conclusion, puer tea is considered as a good choice for well-being food.

Keywords

References

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