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Phenolic content and antioxidant activity of sweet wormwood tea extracts using different solvents

추출 용매에 따른 개똥쑥 차 추출물의 페놀 성분과 항산화 활성

  • Kim, Kyeoung Cheol (Major in Plant Resource and Environment, SARI, Jeju National University) ;
  • Kim, Ju-Sung (Major in Plant Resource and Environment, SARI, Jeju National University)
  • 김경철 (제주대학교 식물자원환경전공) ;
  • 김주성 (제주대학교 식물자원환경전공)
  • Received : 2019.12.10
  • Accepted : 2019.12.25
  • Published : 2019.12.31

Abstract

The selection of a suitable solvent is very important when preparing an extract. However, the effect of ethanol solvent concentration in the extraction of sweet wormwood tea has not been reported. Thus, extracts were prepared from sweet wormwood tea using water and various ethanol concentrations, and the phenolic compounds, antioxidants and anti-enzyme activities of the extracts were analyzed. The phenolic acid and flavonoid components differed according to extraction solvent, which also resulted in different antioxidant and antienzyme activities. In particular, flavonoid rhamnetin was not extracted using 80% and 99.5% ethanol and was highest when 60% ethanol was used for extraction. In the case of chlorogenic acid, the highest extraction efficiency was obtained with 80% ethanol. These results suggest the need for research to increase specific extraction efficiency by targeting major compounds that affect physiological activity.

본 연구에서는 개똥쑥 차를 이용한 가공식품 및 천연소재를 개발하고자 물과 다양한 농도의 에탄올로 추출하여 페놀 및 플라보노이드 성분을 분석하였고 항산화 및 항효소 활성을 비교하였다. 개똥쑥 차 추출물은 용매에 따라 총 페놀과 플라보노이드 함량에 유의적인 차이를 보였고 이를 통해 추출요인으로서 에탄올 농도가 중요한 역할을 하는 것으로 확인되었다. 또한 HPLC로 분석된 페놀산과 플라보노이드 정량분석 결과 구성 성분의 차이가 있었으며 이에 따라 항산화 및 항효소 활성에도 영향을 주었다. 개똥쑥 차 이용 측면에서 에탄올 농도 조절을 통해 목적에 맞는 용매 선택을 제안하는 바이다.

Keywords

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