한국식품영양학회지 (The Korean Journal of Food And Nutrition)

  • 제18권3호
  • /
  • Pages.219-224
  • /
  • 2005
  • /
  • 1225-4339(pISSN)
  • /
  • 2287-4992(eISSN)
한국식품영양학회 (The Korean Society of Food and Nutrition)
권호 표지

녹차와 보이차 추출물의 항산화 효과

Antioxidative Effect on the Green Tea and Puer Tea Extracts

  • 손규목 (창원전문대학 식품영양과) ;
  • 배성문 (창원전문대학 식품영양과) ;
  • 정지영 (창원전문대학 식품영양과) ;
  • 신동주 (창원전문대학 식품영양과) ;
  • 성태수 (창원전문대학 식품영양과)
  • Son Gyu-Mok (Department of Food Sciences and Nutrition, Changwon College) ;
  • Bae Sung-Moon (Department of Food Sciences and Nutrition, Changwon College) ;
  • Chung Ji-Young (Department of Food Sciences and Nutrition, Changwon College) ;
  • Shin Dong-Joo (Department of Food Sciences and Nutrition, Changwon College) ;
  • Sung Tae-Soo (Department of Food Sciences and Nutrition, Changwon College)
  • 발행 : 2005.09.01
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초록

녹차에 대한 보이차의 항산화력을 알아보기 위해 물 추출물과 메탄올 추출물의 항산화 효과를 비교$\cdot$조사하였다. 총 폴리페놀의 함량은 물 추출물의 경우 녹차와 보이차가 비슷하였으며 메탄올 추출물의 경우는 보이차의 함량이 녹차의 약 $58\%$정도 밖에 되지 않았다. 전자공여능은 물 추출물의 경우 녹차와 보이차가 거의 유사하였으며 메탄올추출물의 경우 보이차가 녹차의 $54\%$정도였다. SOD 유사 활성은 용매간에 많은 차이가 있었는데 물 추출물의 활성은 $13.46\~14.07\%$로 녹차와 보이차간에는 거의 차이가 없었으나 메탄올 추출물의 활성은 녹차가 $59.63\%$, 보이차가 $48.93\%$로 물 추출물보다 $3\~4$배 높았으며 또한 녹차가 활성이 높았다. 아질산염 소거능은 물 추출물의 경우 녹차와 보이차간에 거의 차이가 없었으며 메탄올 추출물은 보이차가 녹차보다 다소 효과가 높았다. ACE 저해 활성은 물 추출물의 경우 보이차가 녹차보다 약 $38\%$ 정도 활성이 높았으나 메탄올 추출물은 반대로 녹차가 보이차보다 활성이 높았다. 이상의 연구 결과 보이차의 물추출물 항산화력은 녹차와 비슷하였으나 오히려 ACE 저해활성만은 높은 값을 나타내었고 메탄올 추출물에서는 보이차는 녹차보다 항산화력이 전반적으로 낮았으나 아질산염 소거능만은 높았다.

To see the antioxidative ability of puer tea against green tea, antioxidative effects of water and methanol extracts were compared and researched each. Water extracts from green tea and puer tea contain similar percentage of total polyphenol content while methanol extract from puer tea has about $58\%$ of total polyphenol content of that from green tea. Water extracts from both teas contain similar percentage of the electron donating ability while methanol extract from puer tea has about $54\%$ of the electron donating ability of that from green tea. Solvents made a big difference in SOD-like activities. The activations in water extracts were from $13.46\%$ to $48.93\%$, which didn't give much difference between green tea and puer tea. However, the activations in methanol extracts were $59.63\%$ in green tea and $48.93\%$ in puer tea, which was $3\~4$ times higher than that in water extracts and green tea activated better. The nitrite scavenging activity was similar in water extracts from both teas and the methanol extract from puer tea had a bit higher nitrite scavenging activity than that from green tea. The ACE inhibitory activity in water extract from puer tea was about $38\%$ higher than that from green tea while the activity of methanol extract from green tea was higher than that from puer tea. These results indicate that the antioxidative ability of water extract from puer tea is similar to that from green tea but the ACE inhibitory activity of puer tea reveals higher value and antioxidative ability of methanol extract from puer tea was lower than that from green tea while the nitrite scavenging activity of puer tea was higher.

키워드

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