Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Antioxidant Activity and Biological Properties in Extracts of Euonymus alatus (Thnub.) Sieb.

화살나무 추출물의 항산화 활성 및 생물학적 특성

  • 서경수 (안동대학교 자연과학대학 생명자원과학부) ;
  • 임종국 (안동대학교 자연과학대학 생명자원과학부) ;
  • 박재호 (안동대학교 자연과학대학 생명자원과학부) ;
  • 김충현 (안동대학교 자연과학대학 생명자원과학부) ;
  • 정규영 (안동대학교 자연과학대학 생명자원과학부) ;
  • 정형진 (안동대학교 자연과학대학 생명자원과학부)
  • Published : 2003.02.01
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Abstract

Antioxidant activity and biological properties in the MeOH extracts from different plant parts of Euonymus alatus (THNUB.) were measured by DPPH free radical scavenging ability and inhibition ability against xanthine/xanthine oxidase and proliferation in HL-60 cells. DPPH free radical scavenging activities in extracts of plant parts were high such as leaf, wing, root, seed and stem, respectively. The EtOAc fractions of plant parts were purified through LH-20 column chromatography and identified by GC/MS. LH-4 fraction and LH-5 fraction of leaf, stem and root showed stronger activities than other fractions in the inhibitor activity of DPPH and xanthine/ xanthine oxidase. $IC_{50}$ values of LH-4 fraction eluted from stem extracts showed such as 2.38 and 5.32 in DPPH and xanthine/ xanthine oxidase assay. Polyphenolic compounds were identified in purified LH-20 fractions showed highest $IC_{50}$ value in DPPH and xanthine/xanthine oxidase assay The activity of POD according to sampling time was high in root harvested in May and leaf harvested in September, respectively. The activity of SOD showed only in the extracts of stem in plant parts. SOD and POD in leaf were similar in the patterns of isozyme to those of stem. The purified extracts from Euonymus alatus (THNUB.) exerted inhibition ability of proliferation in HL-60 cells.

화살나무의 부위별 추출물로부터 항산화 활성 및 HL-60 세포를 이용한 생물학적 특성을 조사해 본 결과는 다음과 같았다. 화살나무 추출물의 부위별 DPPH free radical scavenging 활성은 잎, 날개, 뿌리, 종자, 줄기순으로, xanthine oxidase 억제 활성은 잎, 뿌리, 날개, 종자, 줄기 순으로 높았다 LH-20 column chromatography를 통한 정제 후의 DPPH 및 xanthine oxidase 억제활성은 잎과 줄기 추출물에서는 LH-4 분획이, 뿌리 추출물에서는 LH-5 분획이 가장 높은 활성을 나타내었다. 특히, 줄기 추출물에서 LH-4 분획물의 DPPH 및 xanthine oxidase 억제가는 각각 2.38 ${\mu}g$/$m\ell$, 5.32 ${\mu}g$/$m\ell$로 높은 활성을 나타내었다. 정제된 추출물들의 주된 화합물은 polyphenolic 화합물로 동정되었다. 생육시기간에 부위별 POD 활성은 5월의 뿌리 및 9월의 잎 조 추출물에서 가장 높았고, SOD 활성은 5월과 9월의 줄기에서만 나타났다. POD 동위효소 패턴은 잎과 줄기간에는 비슷하였으나, 뿌리에서는 다양하게 나타났다. SOD 동위효소 패턴은 POD와 비슷한 경향을 나타내었다. HL-60 세포의 증식에 대한 화살나무의 정제된 추출물은 대조구에 비해 높은 억제능을 나타내었다.

Keywords

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