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추출용매별 귀리의 항산화 및 암세포 증식 억제 활성

함현미;우관식;박지영;이병원;최용환;이춘우;김욱한;이준수;이유영
Ham, Hyeonmi;Woo, Koan Sik;Park, Ji-Young;Lee, Byongwon;Choi, Yong-Hwan;Lee, Choonwoo;Kim, Wook Han;Lee, Junsoo;Lee, Yu-Young

  • 투고 : 2016.02.22
  • 심사 : 2016.04.20
  • 발행 : 2016.06.30

초록

본 연구에서는 귀리 추출물에 대한 항산화 활성과 암세포 증식 억제 활성을 측정하고 각 추출용매에 따른 차이를 비교 분석하고자 하였다. 추출물의 항산화 활성은 2,2-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)(ABTS)와 1,1-diphenyl-2-picrylhydrazyl(DPPH) 라디칼 제거능 및 환원력을 이용하여 측정하였으며, 암세포 증식 억제 활성은 대장암, 폐암 및 유방암 세포주를 이용하여 평가하였다. 총 폴리페놀 함량, ABTS 및 DPPH 라디칼 제거능, 환원력 모두 methanol 추출물이 각각 8.2 mg gallic acid equivalent/g residue, 12.1 mg Trolox equivalent antioxidant capacity(TEAC)/g residue, 4.4 mg TEAC/g residue 및 $A_{700}=0.39$로 가장 높은 활성을 나타내었다. 또한 암세포 증식 억제 활성은 methanol 추출물이 대장암(HCT116), 폐암(NCI-H460) 및 유방암(MCF7) 세포에서 각각 69.5, 75.2 및 84.8%로 높은 증식 억제 활성을 나타내었다. 따라서 추출용매에 따라 귀리의 항산화 및 암세포 증식 억제 활성에 차이가 나타나며, 이는 추출용매의 극성에 따라 추출된 생리활성 물질, 특히 폴리페놀 화합물의 용해도 차이로 생각된다. 본 연구 결과는 점차 관심이 높아지고 있는 천연 항산화제 및 항암제로서 귀리에 관한 생리활성 연구에 있어 기초자료로 활용될 수 있을 것으로 생각되며, 귀리의 소비 촉진에 영향을 끼칠 것으로 생각된다.

키워드

oat;polyphenolics;antioxidant;antiproliferation

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과제정보

연구 과제 주관 기관 : 농촌진흥청