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

  • 제45권12호
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  • Pages.1838-1842
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  • 2016
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  • 1226-3311(pISSN)
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  • 2288-5978(eISSN)
한국식품영양과학회 (The Korean Society of Food Science and Nutrition)
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감귤과 녹차의 추출액으로 제조한 콤부차의 생리 활성 및 일반 세포 독성

Bioactivity and Cytotoxicity of Kombucha Fermented with Extracts from Green Tea and Citrus Peel

  • 신승식 (제주대학교 식품영양학과) ;
  • 고혜명 (제주대학교 식품영양학과) ;
  • 김청이 (제주대학교 식품영양학과) ;
  • 박성수 (제주대학교 식품영양학과)
  • Shin, Seung-Shick (Department of Food Science & Nutrition, Jeju National University) ;
  • Ko, Hye-Myoung (Department of Food Science & Nutrition, Jeju National University) ;
  • Kim, Chung-I (Department of Food Science & Nutrition, Jeju National University) ;
  • Park, Sung-Soo (Department of Food Science & Nutrition, Jeju National University)
  • 투고 : 2016.08.04
  • 심사 : 2016.10.14
  • 발행 : 2016.12.31
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초록

콤부차는 미생물의 공생체에 의해 제조되는 신맛이 강한 음료로 최근에는 "장수 식품"의 하나로 주로 러시아를 비롯한 서방 국가들에서 많이 음용되어온 기능성 음료이다. 본 연구에서는 일반적으로 제조되는 콤부차의 기능성을 제주 특산물인 감귤의 과피 추출액과 녹차의 추출액을 첨가한 후 콤부차를 발효시켜 각 성분이 가지는 기능성을 이행시킬 목적으로 감귤/녹차 콤부차를 제조하였고, 제조된 감귤/녹차 콤부차의 기능성을 항암성 중심으로 일반 콤부차와 비교 평가하였다. 또한, 콤부차의 산업화, 표준화 및 안전성 확보를 위하여 일반 세포에 미치는 독성의 정도를 RAW 264.7 마우스 대식세포를 이용하여 조사하였다. 그 결과 일반 콤부차보다 감귤/녹차 콤부차는 항산화력이 약 3배 증가하였으며, 항암성도 현저하게 증가한 것으로 나타났다. 특히 일반 세포에 대한 독성은 현저히 낮아진 것으로 나타났으며, 이는 감귤/녹차 콤부차의 안전한 항암 기능성 음료로의 개발 가능성을 시사하고 있다.

Kombucha (K) is a fermented beverage made from black tea by symbiotic micro-organisms of bacteria and yeasts. To enhance bio-activities of K, we produced citrus/green tea Kombucha (CK) by adding extracts of citrus peel and green tea obtained from Jeju Island. ORAC assays showed that anti-oxidative capacity of CK increased by approximately 3-folds compared to K. We examined anti-cancer properties of extracts from citrus peel and/or green tea using 5637 human bladder cancer cells and B16F10 murine melanoma cells. Proliferation of B16F10 cells was markedly inhibited at concentrations higher than $10{\mu}L/mL$. At a concentration of $20{\mu}L/mL$, anti-cancer activities of extracts were in the order of citrus peel< green tea< combination of both. Interestingly, a combination of both extracts showed a synergistic effect on inhibition of growth of cancer cells. CK fermented with citrus peel and green tea extracts showed enhanced anti-cancer activity compared to K. Cytotoxicity of CK on RAW 264.7 murine macrophages was negligible up to $100{\mu}L/mL$. Taken together, these results indicate that citrus Kombucha is safe to be developed as a functional beverage.

키워드

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