A Study on the Pharmacetical Characteristics and Analysis of Green-tea Extract

녹차 추출물의 약리적 특성 및 분석

  • Sung, Ki-Chun (Department of Chemical Engineering, Dae Jin University)
  • 성기천 (대진대학교 공과대학 화학공학과)
  • Published : 2006.06.30


From the result of pharmacetical characteristics and analysis of Green-tea extract, it could obtain some conclusions as follows. The extract experiment of Green-tea appeared about 10%-extraction ratio as semi-solid state, and after dried in freezing from Green-tea extract of semi-solid state, it obtained about 65% Green-tea extract as solid state. In the results on antimicrobial experiment of Green-tea extract, number of S-typhimurium and fungus in microbe decreased more and more according to the time passage. This phenomenon could show that Green-tea extract keeps antimicrobial effect. In the results on antioxidation experiment of Green-tea extract, DPPH scavenging activity of free radical showed that Green-tea extract appears more remarkable reduction ability than reference samples. This phenomenon means that antioxidation of Green-tea extract appears higher than Vitamin-C and BHA sample. In the results on intrument analysis, the fatty and aromatic components of aniline, acetaldehyde, acetic acid, trichloroethylene, caffeine etcs from Green-tea extract was detected with GC/MS analysis and inorganic components of Ca, Mg, Cu, Mo, Sb, Ti etcs from Green-tea extract was detected with ICP/OES analysis.


  1. S. G. Khan, S. K. Katitar, R. Agarwal, and H. Mukhtar, Enhancement of Antioxidant and Phase II Enzymes by Oral Feeding of Green-Tea Polyphenols in Drinking Water to SKH-1 Hairless Mice ; Possible Role in Cancer Chemoprevention, Cancer Res., 52, 4050 (1992)
  2. A. Ahmad, D. K. Feyes, A. L. Nieminen, R. Agarwal, and H. Mukhtar, Green-Tea Constituent Epigallocatechin, Green-Tea Condtituent Epigallocatechin 3-0-Gallate and Induction of Apoptosis and Cell Cycle Arrest in Human Carcimona Cell, J. Nat. Cancer Inst., 89, 1886 (1997)
  3. J. H. Kim, Biochemistry, Chung Mun Gac, 1(4), 428 (2005)
  4. Z. Y. Chen, Q. Y. Zhu, F. Y. Wong, Z. Zhang, and H. Y. Chung, Stabizing Effect of Ascorbic Acid on Green-Tea Catechins, J. Agric. Food Chem., 46, p.p 2512-2516 (1998)
  5. I. Ogumy, S. J. Chem, P. Z. Lin, and Y. Hara, Potection against Cancer Risk by Japanese Green-Tea, Press Med., 21, 332 (1992)
  6. M. S. Blois, Nature, 181, p.p 1199-1200 (1958)
  7. G. S. Lee, Microbial Test, Bureau of Publication, Won Kwang University, 329 (1992)
  8. H. H. Kim, Characteristics on Functional and Quality of Green-tea noodles, Graduated School of Kyung San University Department of Life Resource and Science, Master, p.p 1-2 (2003)
  9. M. B. Kim, Tea of Korea, Tam Gu Dang, 322 (1983)
  10. K. C. Sung, Characteristics and Analysis on the Refined Oil Component of Green-Tea, J. of Korean Oil Chemist's Soc., 22(3), p.p 241-249 (2005. 7. 1)
  11. Y. Matsuzaki and Y. Hara, Antioxidant Activity of Various Tea Extracts in Relation to their Antimutagenicity, J. Agric. Food Chem., 43(1), p.p 27-32 (1995)
  12. S. Yosizawa, T. Horiuchi, H. Fujiki, T. Yosida, T. Okuda, and T. Sugimura, Antitumor Promoting Activity of (-)Epigallocatechin Gallate, the Main Consituent of Tannin in Green-Tea, Phytother Res., 1, 14 (1987)
  13. S. K. Kartiyar, R. Agarwal, and H. Mukhtar, Green-Tea in Chemoprevention of Cancer, Compr. Ther., 18, 3 (1992)
  14. J. W. Yang, Antioxident Effects and Extract Yield fo Catechins from Green-Tea by Various Solvents, Department of Food Sci., of Korea Univ. Graduate School, p.p 1-2 (2004)
  15. H. Y. Chung and T. Yokozawa, Studies on Antiaging and Antimutagenic Mechanism of Epigallocatechin 3-0-Gallate Isolated from Green-Tea, Kor. J. Food Sci. Industry, 28, 46 (1995)
  16. J. S. Han, D. H. Shin, S. E. Yun, and M. S. Kim, Antimicrobial Effects on Listeria Monocytogenes by Some Edible Plants Extracts, Korean J. Food. Sci. Technol., 26, 545 (1994)
  17. B. J. Ji, W. H. Chow, A. W. Hscing, J. K. Mclaughlin, G. Dai, Y. T. Gao, W. J. Blot, and J. F. Fraumeni, Green-Tea Consumption and the Risk of Pancreatic and Colorectal Cancers, Int. J. Cancer, 70, 255 (1997)<255::AID-IJC1>3.0.CO;2-W