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Biological activity of Euonymus alatus (Thunb.) Sieb. wing extracts

화살나무 날개 추출물의 생리활성

  • Hye-Ji Min (Department of Food Biotechnology, Dong-A University) ;
  • Du-Hyun Kim (Department of Life Resources Industry, Dong-A University) ;
  • Kwon-Il Seo (Department of Food Biotechnology, Dong-A University)
  • 민혜지 (동아대학교 식품생명공학과) ;
  • 김두현 (동아대학교 생명자원산업학과) ;
  • 서권일 (동아대학교 식품생명공학과)
  • Received : 2023.03.27
  • Accepted : 2023.04.16
  • Published : 2023.04.30

Abstract

Euonymus alatus (Thunb.) Sieb., also known as the arrow tree in Korea, is a plant in East Asia used in traditional medicine and food. In particular, the wings of E. alatus are rich in phenolic compounds. This study evaluated the antioxidant, α-glucosidase inhibition, and anti-cancer activities of E. alatus wing extracts. The radical and hydrogen peroxide scavenging acitvities and reducing the power of 1,000 ㎍/mL E. alatus wing extracts, were similar to those of the positive control (0.1% BHT, 0.1% α-tocopherol). In addition, ethanol and methanol extract at 250 ㎍/mL showed 95.70 and 94.99% of α-glucosidase inhibition activity, respectively. The ethanol extract of E. alatus wings had the highest total polyphenol and flavonoid contents (867.8 mg% and 521.7 mg%, respectively). The E. alatus wing extracts significantly decreased the cell viability of LNCaP human prostate cancer cells (p<0.001), MDA-MB-231 human breast cancer cells (p<0.001), and HT-29 human colon cancer cells (p<0.001) in a dose-dependent manner. However, there was no significant effect on B16 mouse melanoma cells. Notably, the ethanol extracts showed higher cancer cell growth inhibitory activity in LNCaP and HT-29 cells than the other extracts. These results suggest that E. alatus wing extracts could have significant clinical applications, and our results can be used as basic data for future functional food material development.

본 연구에서는 화살나무 날개를 이용하여 물, 에탄올 및 메탄올을 이용하여 얻은 추출물을 이용하여 항산화 활성, 항당뇨 활성, 총폴리페놀 및 플라보노이드 함량, 암세포 성장 억제능을 평가하였다. 화살나무 날개 추출물은 DPPH radical 소거능 결과에서는 에탄올과 메탄올 추출물에서 positive control과 유사한 radical 소거능을 나타내었으며 ABTS·+ radical 소거능에서는 모든 군의 1,000 ㎍/mL의 농도에서 80% 이상의 소거능을 보여주었다. 또한, 환원력과 hydrogen peroxide 소거능 및 α-glucosidase 저해활성에서 에탄올과 메탄올 추출물은 positive control과 비슷하거나 높은 활성을 나타내었다. 화살나무 날개 추출물 내 총폴리페놀 및 플라보노이드 함량은 에탄올 추출물에서 867.8 mg% 및 551.7 mg%로 물 및 메탄올 추출물과 비교하였을 때 보다 높은 총폴리페놀 및 플라보노이드 함량이 확인되었다. 화살나무 날개 추출물의 암세포 증식 억제 활성은 흑색종 피부암(B16)에서는 큰 효과를 확인할 수 없었지만 유방암(MDA-MB-231), 대장암(HT-29) 및 전립선암(LNCaP)에서는 유의적인 세포 생존 억제능을 확인하였고 특히 LNCaP에 에탄올 추출물을 처리하였을 때 19.1%의 세포 생존율을 보이며 가장 우수한 세포 성장 억제 활성을 확인하였다. 또한, 전립선 정상 세포인 RWPE-1을 화살나무 날개 추출물로 처리하였을 때 세포 생존율에 큰 영향을 받지 않았기 때문에 암세포 특이적인 성장 억제 활성을 확인할 수 있었다. 이러한 결과를 통해 풍부한 폴리페놀 및 플라보노이드 함량을 가진 화살나무 추출물은 항산화, α- glucosidase 억제, 항암 효과를 나타내어 뛰어난 생리활성효능을 가지고 있고, 이는 효과적인 천연물 유래 기능성 원료 및 식품 소재 발굴을 위한 기초자료로 이용할 수 있을것으로 사료된다.

Keywords

Acknowledgement

이 논문은 2022년도 동아대학교 학술연구지원재단의 학술연구비에 의하여 연구되었음.

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