한국식품영양학회지 (The Korean Journal of Food And Nutrition)

  • 제31권3호
  • /
  • Pages.416-424
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  • 2018
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  • 1225-4339(pISSN)
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  • 2287-4992(eISSN)
한국식품영양학회 (The Korean Society of Food and Nutrition)
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녹차음료에서의 카테킨 및 카페인 함량 조사

Determination of Amounts of Catechin and Caffeine in Green Tea Beverages

  • 김대환 (경기도보건환경연구원 식품의약품연구부 식품분석팀) ;
  • 이명진 (경기도보건환경연구원 식품의약품연구부 식품분석팀) ;
  • 김양희 (경기도보건환경연구원 식품의약품연구부 식품분석팀) ;
  • 유경신 (경기도보건환경연구원 식품의약품연구부 식품분석팀) ;
  • 이지연 (경기도보건환경연구원 식품의약품연구부 식품분석팀) ;
  • 박광희 (경기도보건환경연구원 식품의약품연구부 식품분석팀)
  • Kim, Dae-Hwan (Food Analysis Team, Dept. of Food and Drug Research, Gyeonggi-do Research Institute of Health and Environmental) ;
  • Lee, Myung-Jin (Food Analysis Team, Dept. of Food and Drug Research, Gyeonggi-do Research Institute of Health and Environmental) ;
  • Kim, Yang-Hee (Food Analysis Team, Dept. of Food and Drug Research, Gyeonggi-do Research Institute of Health and Environmental) ;
  • Ryu, Kyong-Sin (Food Analysis Team, Dept. of Food and Drug Research, Gyeonggi-do Research Institute of Health and Environmental) ;
  • Lee, Ji-yeon (Food Analysis Team, Dept. of Food and Drug Research, Gyeonggi-do Research Institute of Health and Environmental) ;
  • Park, Kwang-Hee (Food Analysis Team, Dept. of Food and Drug Research, Gyeonggi-do Research Institute of Health and Environmental)
  • 투고 : 2017.09.27
  • 심사 : 2018.06.08
  • 발행 : 2018.06.30
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초록

The physiologically advantageous aspects of green tea have been identified recently and green tea has been a favorite drink of many people. Due to the increased awareness of green tea's positive effects on human health, the demand for foods containing green tea has increased. This has led to the development of diverse green tea-related beverages; thereby many companies in Korea have put a wide variety of manufactured green tea beverages on the market. However, the components within green tea beverages have not been examined in Korea yet. In this study, we investigated the contents of the physiologically functional materials found in green tea, such as catechin, catechin gallate, epicatechin, epicatechin gallate, epigallocatecin gallate, gallocatechin gallate and caffeine. Fifty-six green tea products purchased from the local grocery stores and cafes were analyzed using high performance liquid chromatography (HPLC) analysis. As a result, all tested products contained catechin and caffeine, although the amount of each component was largely different. The total amount of catechin derivatives in the manufactured green tea beverages purchased from cafes was 263.17 mg/L, while they were 61.99 mg/L in the beverages purchased from the local grocery stores. And, to the almost samples the amount of caffeine was proportional to the amount of catechin.

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