The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Antioxidant Activities of Cedrela sinensis Tender Leaf Powder Extracts obtained from Different Solvents

추출용매에 따른 참죽나무 순 분말 추출물의 항산화 활성

  • Kim, Min Jung (Dept. of Food and Nutrition, Sookmyung Women's University) ;
  • Han, Young Sil (Dept. of Food and Nutrition, Sookmyung Women's University)
  • 김민정 (숙명여자대학교 식품영양학과) ;
  • 한영실 (숙명여자대학교 식품영양학과)
  • Received : 2014.10.13
  • Accepted : 2014.11.05
  • Published : 2014.12.31
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Abstract

In this study, the nutritional value, total polyphenol content, total flavonoid content, and antioxidant activity of freeze-dried Cedrela sinensis tender leaf powder were examined. Among the nutritional values, the crude protein, crude fiber, calcium, and potassium were abundantly present in Cedrela sinensis. The Cedrela sinensis powder was extracted with two solvents, 70% ethanol and distilled water (D.W.), to evaluate its functional properties. Total polyphenol and flavonoid contents were measured in the two different extracts, and the extracts were screened for their potential antioxidant activities using tests such as DPPH radical scavenging activity, ferric reducing antioxidant power (FRAP), and ABTS radical scavenging assay. Although both extracts exhibited good antioxidant activities against trolox, the ethanolic extract exhibited higher antioxidant activities than the D.W. extract. These results indicated that the Cedrela sinensis powder is a high-valued food ingredient and the extraction with 70% ethanol will be useful as a nutritional source with natural antioxidant activities.

본 연구에서는 전통 식품 소재로의 활용성을 높이기 위해 참죽나무 순을 동결건조하여 일반성분과 무기질 함량을 측정하였고, 추출용매를 달리하여 얻은 열수 추출물과 70% 에탄올 추출물로부터 총 폴리페놀 및 플라보노이드 함량과 항산화능을 살펴보았다. 참죽나무 순의 일반성분 및 무기질 분석 결과, 조단백질, 조섬유, 칼슘과 칼륨 함량이 높게 측정되었다. 총 폴리페놀과 플라보노이드는 참죽나무 순 분말 열수 추출물보다 70% 에탄올 추출물에서 함량이 더 높았으며, DPPH 유리 라디칼 소거능과 FRAP 또한 70% 에탄올 추출물에서 더 높은 항산화력을 나타냈다. 이상의 결과로 볼 때 참죽나무 순 분말은 영양성과 식이섬유소의 기능성이 높아 식품의 재료로 이용가능성이 높으며, 참죽나무 순 분말로부터 유용성분 용출 및 기능성 증대를 위해서는 70% 에탄올로 추출하는 것이 바람직하다고 생각된다.

Keywords

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