Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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The Physicochemical Properties of Korean Wild Teas (Green tea, Semi-fermented tea, and Black tea) According to Degree of Fermentation

발효정도에 따른 국내산 야생차(녹차, 반발효차, 홍차)의 이화학적 특성

  • Published : 2003.04.01
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Abstract

The present study was conducted to know the physicochemical properties of non fermented tea and fermented teas with the fermented time of 0 hr (non fermented tea), 10 hrs, 17 hrs (semi-fermented tea), 24 hrs (black tea), respectively The moisture content of non fermented tea, semi fermented, and black tea was 3.01% ~ 3.29%. The contents of reducing sugar, crude lipid, crude protein were increased and that of ascorbic acid was decresed with fermentation. The total contents of those increased as tea was more fermented. The contents of the citric acid and the malic acid were increased with fermentation, but the content of the succinic acid was decreased. However, the total content of organic acid was generally increased with fermentation. The total content of the amino acid was increased with fermentation. In non fermented tea, Thr+theanine, the Asp, and the Glu, were determined in order of content. In semi-fermented tea and black tea, Ter+theanine, Glu, and Asp were determined in order of content. The rate of essential amino acid in the total content of free amino acid was increased with fermentation. The content of theanine was 1.21% in non fermented tea and 1.50% in black tea. The contents of theanine were increased as tea was more fermented. The content of caffein was 3.57% in non fermented tea and 3.55 ~ 3.60% in semi-fermented tea and black tea. These results were inconsistent in the content of caffein. Five kinds of catechin, that is, cathechin, epigallocathechin, epicathechin, epigallocathechin gallate, and epicathechin gallate were extracted. The content of catechin was 14.18% in non fermented tea, but decreased sharply as tea was more fermented.

녹차와 발효시 간을 각각 다르게 하여 제조한 약발효차(10시간 발효), 중발효차(17시간 발효), 강발효차(24시간 발효)에 대한 이화학적 특성을 분석한 결과는 다음과 같다. 녹차 및 발효된 차의 수분 함량은 3.01 ~ 3.29%로 나타났고, 환원당 ,조지방, 조단백질 함랑은 발효를 많이 시킨 차일수록 증가한 반면, ascorbic acid는 감소하였다. 차의 유리당은 glucose, fructose, sucrose 등 3개의 당이 확인되었으며, 유리당의 총 함량은 녹차가 3.08%, 강발효차가 3.32%로 발효를 많이 시킨 차일수록 약간 증가하는 경 향을 나타냈다. 차의 유기산은 citric acid, malic acid, succinic acid 등 3개의 산이 확인되었고 citric acid와 malic acid 함량은 발효를 많이 시킨 차일수록 함량이 증가하는 반면, succinic acid 함량은 감소하는 경향을 나타냈으며, 유기산의 총함량은 발효를 많이 시킨 차일수록 대체로 증가하는 경향을 나타냈다. 차에 함유된 유리 아미노산은 AsP 외 16종이 확인되었다. 유리 아미노산의 총함량은 발효를 많이 시킨 차일수록 증가하는 향을 나타내었다. 녹차와 각 발효차의 주요 아미노산은 Thr+theanine, Asp, Glu으로 나타났으며, 녹차는 Thr+theanine, Asp, Glu 순으로 높게 나타났고, 발효차는 Thr+theanine, Glu, Asp 순으로 높게 나타났다. 유리아미노산의 총함량에서 필수아미노산이 차지하는 비율은 발효를 많이 시킨 차일수록 증가하는 경향을 나타냈다. 녹차에 함유된 theanine 함량은 1.21%였으며, 중발효차와 강발효차는 각각 1.42%, 1.50%로 녹차에 비하여 theanine 함량이 증가되었다. Caffein 함량은 비발효차인 녹차의 경우 3.57%, 발효된 차는 3.55~3.60%로 발효에 따른 변화는 거의 없었다. Cathechin은 5종류의 cathechin, epig-allocathechin, epicathechin, epigallocathechingallate, epicathechin gallate이 동정되었으며, 녹차의 카테친 함량이 14.18%로 높고, 발효를 많이 시킨 차일수록 현저하게 감소하였다.

Keywords

References

  1. 이성우. 1984. 한국식품문화사. 교문사, 서울. p 240.
  2. 최성희. 1999. 우리 차 세계의 차 바로알고 마시기. 서원, 서울. p 19-137.
  3. 橋本 實(저), 박용구(옮김). 1997. 차의 기원을 찾아서. 경북대학교 출판부, 대구. p 30-46.
  4. 정동효, 김종태. 1997. 차의 과학. 대광서림, 서울. p 25-261.
  5. 徐海榮主編. 2000. 國茶事大典. 華夏出版社, 北京. p 355.
  6. Shin MK, Chang Mk, Seo ES. 1995. Chemical properties on the quality of marketed roasting green teas. Korean J Soc Food Sci 11: 356-361.
  7. Jeon JR, Park GS. 1999. Korean green tea by Ku Jeung Ku Po's (I. Analysis of general composition and chemical compositions). J Soc Food Sci 15: 95-101.
  8. Park JH, Choi HK, Park KH. 1998. Chemical components of various green teas on market. J Kor Tea Soc 4: 83-92.
  9. Park JH, Kim KS, Choi HK. 1997. Studies on free amino acid, organic acid and fatty acid content of Korean tea plants. J Kor Tea Soc 3: 73-87.
  10. Park JH, Kim KS, Kim JH, Choi HK, Kim SW. 1997. Studies on the chemical constituents of free amino acid, theanine, catechin contents in domestic tea shoots. J Kor Tea Soc 2: 197-207.
  11. Choi SH, Bae JE. 1996. The aroma components of green tea, the products of Mt. Chiri garden. J Korean Soc Food Nutr 25: 478-483.
  12. Choi SH. 1991. Studies on flavor components of commerical Korean green tea. Korean J Food Sci Technol 23: 98-101.
  13. Moon JH, Park KH, Sakata K. 1996. Aroma formation mechanism of tea. J Kor Tea Soc 2: 271-296.
  14. Rhi JW, Shin HS. 1993. Antioxidant effect of aqueous extract obtained from green tea. Korean J Food Sci Technol 25: 759-763.
  15. Kim MJ, Lee SJ. 1994. Effect of Korean green tea, oolong tea and black tea beverage on the removal of cadmium in rat. J Korean Soc Food Nutr 23: 784-791.
  16. Yeo SG, Ahn CW, Kim IS, Ahn CW, Kim SB, Park YH. 1995. Dismutagenicity of tea extracts from green tea, oolong tea and black. J Korean Soc Food Nutr 24: 160-168.
  17. Yeo SG, Ahn CW, Kim IS, Park YB, Park YH, Kim SB. 1995. Antimicrobial effect of tea extracts from green tea, oolong tea and black tea. J Korean Soc Food Nutr 24: 293-298.
  18. Anan T, Takayanagi H, Ikegaya K, Nakagawa M. 1981. Changes of sugar compounds of aspartic acid, threonine, serine and alanine during heating of green tea. Nippon Nogeikaguku Kaishi 28: 578-582.
  19. Yamamoto M, Sano M, Matsuda N, Miyase T, Kawamoto K, Suzuki N, Yoshimura M, Tachibana H, Hakamata K. 2001. The change of epigallocatechin-3-O-(3-O-methyl) gallate content in tea of diffrent varieties, tea of crop and processing method. Nippon Shokuhin Kagaku Kogaku Kaishi 48: 64-68. https://doi.org/10.3136/nskkk.48.64
  20. Zeng X, Wang Z. 1991. Study on the aroma of roasted green tea. Proceedings of ISTS, Shizuoka, Japan. p 62.
  21. Michiko K, Tei Y. 1999. Formation of aroma components in roasted or pan-fired green tea by roasting or pan-firing treatment. Nippon Nogeikagaku Kaishi 73: 893-906. https://doi.org/10.1271/nogeikagaku1924.73.893
  22. Tadakazu T. 1983. Variations in the aroma compound content of semi-fermented and black tea. Nippon Nogeikaguku Kaishi 57: 457-459. https://doi.org/10.1271/nogeikagaku1924.57.457
  23. Kobayashi A, Kawamyra M, Yamamoto Y, Shimizu K, Kubota K, Yamaishi T. 1989. Methyl epijasmonate in the essential oil of tea. Agric Biol Chem 52: 2299-2305.
  24. John H. 1995. Beneficial effects of tea in chronic disease prevention. The 3rd international symposium on green tea. Korean Soc Food Sci Technol, Seoul, Korea. p 1-12.
  25. Cheng Q, Wang Y. 1995. Effect of tea on health and on anti-radiation injury. The 3rd international symposium on green tea. Korean Soc Food Sci Technol, Seoul, Korea. p 45-52.
  26. Sugiyama K. 1995. Anti-allergic effects of tea. The 3rd international symposium on green tea. Korean Soc Food Sci Technol, Seoul, Korea. p 59-64.
  27. Muramatsu K, Fukuyo M, Hara Y. 1986. Effect of green tea catechins on plasma cholesterol level in cholesterol fed rats. J Nutr Sci Vitaminol 32: 221-228.
  28. AOAC. 1984. Official Methods Analysis. 14th ed. Association of official analytical chemists, Washington DC.
  29. Nollet I. 1992. Food analysis by HPLC. Chapter 10. Quantitative determination of water-soluble vitamins using HPLC. Marcel Dekker Inc., NY. p 341-349.
  30. Wilson AM, Work TM, Bushway AA, Bushway RJ. 1981. HPLC determination of fructose, glucose and sucrose in potatoes. J Food Sci 46: 300-301. https://doi.org/10.1111/j.1365-2621.1981.tb14589.x
  31. Palmer J, List DM. 1973. Determination of organic acids in foods by liquid chromatography. J Agric Food Chem 21: 903. https://doi.org/10.1021/jf60189a019
  32. Ohara I, Ariyoshi S. 1979. Comparison of protein precipitants for the determination of free amino acid in plasma. Agric Biol Chem 43: 1473-1478. https://doi.org/10.1271/bbb1961.43.1473
  33. Blauch JL, Tarka SM. 1983. HPLC determination of caffeine and theobromine in coffee, tea and instantant hot cocoa mixes. J Food Sci 48: 745-747. https://doi.org/10.1111/j.1365-2621.1983.tb14888.x
  34. Rah HH, Baik SO, Han SB, Bock JY. 1992. Impronement of analytical method for catechins in green tea. J Korean of Agric Chem Soc 35: 276-280.
  35. Ko YS, Lee IS. 1985. A study on the changes the components in the steaming and roasting green tea after heat trements according to time. J Korean Home Economics Association 23: 29-36.
  36. Hong HJ, Choi JH, Choi KH, Choi SW, Rhee SJ. 1999. Quality changes of Sulgiduk added green tea powder during storage. J Korean Soc Food Sci Nutr 28: 1064-1068.
  37. Shin MK. 1985. Studies on the qulity of Korean wild green tea (Thea sinensis L.). PhD Dissertation. Hanyang University.
  38. Kawakami M, Uchida H, Kobayashi A. 1987. Correlation between caffeine and total nitrogen in small tea leaf species and large tea leaf species. Nippon Nogeikagaku Kaishi 61: 365-367. https://doi.org/10.1271/nogeikagaku1924.61.365
  39. Shihoko T, Yumie M, Toshio M, Yusuke S, Kazuo I. 1987. Comparison of caffein and catechin components in infusion of various tea (green tea, ooling and black tea) and tea drinks. Nippon Shokuhin Kogyo Gakkaishi 34: 20-27. https://doi.org/10.3136/nskkk1962.34.20
  40. Iwai K, Sato M, Matsue H. 2000. Relationship between antioxidative activity estimated by XYZ-dish method and catechin concentration in commercially available tea drinks. Nippon Shokuhin Kagaku Kogaku Kaishi 47: 120-129. https://doi.org/10.3136/nskkk.47.120
  41. Park GS, Jeon JR, Lee SJ. 1999. The sensory charactateristics of Korean green tea produced by Kujeungkupo's method. Korean J Soc Food Sci 15: 475-482.

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