일본잎갈나무 낙엽의 추출성분 및 항산화활성

Antioxidative activities on the extractives of Larix kaempferi Carr. Fallen Needles

  • 사전령 (강원대학교 대학원 임산공학과) ;
  • 권동주 (강원대학교 대학원 임산공학과) ;
  • 김진규 (강원대학교 대학원 임산공학과) ;
  • 황병호 (강원대학교 산림과학대학 임산공학과) ;
  • 배영수 (강원대학교 산림과학대학 임산공학과)
  • Si, Chuan-Ling (Dept. of Wood Science & Engineering, Graduate School, Kangwon National University) ;
  • Kwon, Dong-Joo (Dept. of Wood Science & Engineering, Graduate School, Kangwon National University) ;
  • Kim, Jin-Kyu (Dept. of Wood Science & Engineering, Graduate School, Kangwon National University) ;
  • Hwang, Byung-Ho (Dept. of Wood Science & Engineering, College of Forest Sciences, Kangwon National University) ;
  • Bae, Young-Soo (Dept. of Wood Science & Engineering, College of Forest Sciences, Kangwon National University)
  • 발행 : 2005.06.30

초록

일본잎갈나무 낙엽 (8.5kg)을 채취하여 95% EtOH 용액으로 추출하고 농축된 추출용액은 분획깔때기로 헥산, 메틸렌클로라이드, 에틸아세테이트 및 수용성으로 순차 추출하여 동결건조하였다. 에틸아세테이트용성과 수용성 분획에 대하여 칼럼크로마토그래피를 실시하였고, 충진물질로는 Sephadex LH-20을, 용리용매로는 메탄올 수용액 및 에탄올-헥산 혼합용액을 사용하였다. 단리된 화합물들은 TLC로 확인한 후 NMR 스펙트럼을 사용하여 정확한 구조규명을 하였고 FAB-MS와 EI-MS 스펙트럼으로 분자량을 측정하였다. 일본잎갈나무 낙엽으로부터 5개의 화합물을 단리하였으며, 각 분획물과 단리된 화합물들은 DPPH 라디칼 소거법을 이용하여 항산화 시험을 실시하였다.

Fallen needles (8.5kg) of Larix kaempferi were separately collected, extracted with 95% EtOH. EtOH extract was evaporated under reduced pressure, concentrated then successively fractionated with a series of hexane, methylene chloride, ethylacetate and water on a separatory funnel. Then, each fraction was freeze dried. A portion of ethylacetate and water soluble powder were packed on a column chromatography (Sephadex LH-20) eluting with aqueous MeOH and EtOH-hexane mixture. Spectrometric analyses such as NMR and FAB-MS including TLC were performed to characterize the structures of isolated compounds. 5 compounds were isolated from the fallen needles of Larix kaempferi. The antioxidative activities of each fraction and isolated compounds were done by DPPH radical scavenging test.

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