Journal of the Society of Cosmetic Scientists of Korea (대한화장품학회지)

Society of Cosmetic Scientists of Korea (대한화장품학회)
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Anti-oxidative Activities for the Flavonoids of the Syzygium aqueum Burm.f. Alston Branches from Jeju Island

제주 자생 물사과 가지 유래 Flavonoid 화합물의 항산화 활성

  • Yeom, Hyun Sook (Department of Chemistry and Cosmetics, Jeju National University) ;
  • Lee, Nam Ho (Department of Chemistry and Cosmetics, Jeju National University) ;
  • Hyun, Ju Mi (Department of Chemistry and Cosmetics, Jeju National University)
  • 염현숙 (제주대학교 화학.코스메틱스학과) ;
  • 이남호 (제주대학교 화학.코스메틱스학과) ;
  • 현주미 (제주대학교 화학.코스메틱스학과)
  • Received : 2018.04.12
  • Accepted : 2018.05.23
  • Published : 2018.06.30
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Abstract

In this study, we investigated the anti-oxidative activities and cell protective effects of the constituents isolated from S. aqueum branches. DPPH and $ABTS^+$ radical scavenging activities were screened for the ethanol extract and solvent fractions, ethyl acetate (EtOAc) and butanol (BuOH) fractions showed potent activities. When HaCaT cells were treated with $H_2O_2$, the ethanol extract and EtOAc fractions ($20{\mu}g/mL$) protected the cells against oxidative damage. Two constituents were isolated from the EtOAc fraction of S. aqueum branches; pinocembrin (1), desmethoxymatteucinol (2). The chemical structures of the isolated compounds were elucidated based on the spectroscopic data including $^1H$ and $^{13}C$ NMR spectra, as well as comparison of the data to the literature values. Anti-oxidative activities and cell protective effects were studied for the isolated compounds. For the anti-oxidative activities, all of the compounds 1 and 2 showed DPPH and $ABTS^+$ radical scavenging activities. Also, from the cell protective effect test, the compounds 1 and 2 protected the cell against oxidative stress by $H_2O_2$. Based on these results, S. aqueum branches extract could be potentially applicable as anti-oxidant ingredients in cosmetic industries.

본 연구에서는 물사과 가지 추출물 및 용매 분획물의 항산화 활성과 세포보호효과를 검색하고 유효성분을 분리하여 화학구조를 규명하였다. 물사과 가지 추출물 및 용매 분획물의 DPPH 및 $ABTS^+$ 라디칼 소거 활성을 측정한 결과, 에틸아세테이트 및 부탄올 분획물에서 우수한 라디칼 소거 활성이 있음을 확인하였다. 또한 $H_2O_2$로 유도된 세포 손상에 대한 세포보호효과를 확인한 결과, $20{\mu}g/mL$의 농도에서 추출물 및 에틸아세테이트 분획물에서 보호효과가 나타남을 확인하였다. 항산화 활성이 좋은 에틸아세테이트 분획물에서 유효성분을 찾고자 medium pressure liquid chromatography (MPLC)를 실시하여 2개의 화합물을 분리하였으며 $^1H$ 및 $^{13}C$ NMR 데이터 분석 및 문헌 비교를 통하여 화학구조를 동정하였다; pinocembrin (1), desmethoxymatteucinol (2). 분리된 화합물에 대한 DPPH 및 $ABTS^+$ 라디칼 소거 활성을 측정한 결과, 화합물 1, 2 모두 농도의존적으로 우수한 라디칼 소거 활성이 나타났다. $100{\mu}M$의 농도에서 화합물 1, 2는 $H_2O_2$로 유도된 세포손상에 대하여 세포보호효과를 나타냈다. 이러한 연구 결과를 바탕으로 물사과 가지 추출물은 천연 항산화 소재로써 활용 가능할 것이라 사료된다.

Keywords

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