Journal of Physiology & Pathology in Korean Medicine (동의생리병리학회지)

The Physiological Society of Korean Medicine and The Society of Pathology in Korean Medicine (대한동의생리학회·한의병리학회)
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Analysis on the Antioxidant Activity of Catechin Concentrations and Green Tea Extract Powder

녹차 분말과 카테킨의 농도에 따른 항산화력 비교 분석

  • Choi Kyung-Min (Department of Infection Biology, College of Medicine, Wonkwang University) ;
  • Yun Young-Gab (Department of Oriental Medicine, Graduate School of Wonkwang University) ;
  • Jiang Jing-Hua (Department of Infection Biology, College of Medicine, Wonkwang University) ;
  • Oh Sung-Su (Department of Infection Biology, College of Medicine, Wonkwang University) ;
  • Yang Hwan-Deok (Department of Orthopedic Surgery, College of Medicine, Wonkwang University) ;
  • Kim Hyoung-Jun (Department of Orthopedic Surgery, College of Medicine, Wonkwang University) ;
  • Park Jin-Young (Department of Orthopedic Surgery, College of Medicine, Wonkwang University) ;
  • Jeon Byung-Hun (Department of Pathology, College of Oriental Medicine, Wonkwang University) ;
  • Kim Suk-Il (Department of Parasitology, College of Medicine, Chosun University) ;
  • Park Hyun (Department of Infection Biology, College of Medicine, Wonkwang University)
  • 최경민 (원광대학교 의과대학 감염생물학교실) ;
  • 윤용갑 (원광대학교 한의과대학 방제학교실) ;
  • 강경화 (원광대학교 의과대학 감염생물학교실) ;
  • 오성수 (원광대학교 의과대학 감염생물학교실) ;
  • 양환덕 (원광대학교 의과대학 정형외과) ;
  • 김형준 (원광대학교 의과대학 정형외과) ;
  • 박진영 (원광대학교 의과대학 정형외과) ;
  • 전병훈 (원광대학교 한의과대학 병리학교실) ;
  • 김석일 (조선대학교 의과대학 기생충학교실) ;
  • 박현 (원광대학교 의과대학 감염생물학교실)
  • Published : 2005.12.01
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Abstract

Antioxidative activities of catechin from green tea extracts were examined by the methods of 1,1-Diphenyl-2-picrylhydrazyl (DPPH) electron donating ability, hydroxy scavenging activity and the inhibitory effect on xanthine oxidase activity. The resulted demonstrated the fact that Catechin one (containing Green tea extracts plus catechin 51%) of green tea extracts product showed at 65.5% in electron donating activity on the DPPH. The electron donating ability on the DPPH of Catechin one was increased to 10% than purified catechin. Catechin one showed the activity at 64.5% in scavenging activity using hydroxy radical method. To the Catechin one provided to increase the hydroxy scavenging activity up to 3 fold. Inhibitory effects of the catechin one measured with xanthine oxidase method was 6.5%. Although the antioxidative activity of catechin (98% purified) was lower than that of Catechin one (containing Green tea extracts plus catechin 51%) in same catechin concentrations ($5{\mu}g$, respectively). Therefore, we may suggest that Catechin one can be used as a functional food additive possessing the potent antioxidative activity.

Keywords

References

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