Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Antioxidant Effect of 80% Ethanol Extracts Obtained from Three Dendranthema Species

국화과 Dendranthema속 식물 3종 80% 에탄올 추출물의 항산화 효과

  • Received : 2009.10.12
  • Accepted : 2010.01.22
  • Published : 2010.02.28
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Abstract

Flowers and shoots of three species of Dendranthema boreale, Dendranthema indicum, Dendranthema zawdskii var. lucidum, were extracted with 80% ethanol by reflux, and polyphenol content, scavenging activity on DPPH and ABTS radicals, ferrous ion chelating effects and inhibition effects on lipid peroxidation were analyzed. Total polyphenol and flavonoid contents were highest in D. zawdskii var. lucidum, especially in the flower part. Scavenging activity on DPPH and ABTS was also highest in D. zawdskii var. lucidum flower with less activity in shoot. Ferrous ion chelating effects was highest with D. boreale flower and lowest in D. zawdskii var. lucidum flower. Inhibition activity on lipid peroxidation was highest in D. zawdskii var. lucidum shoot with 41.01% inhibition activity showing 32 days after reaction, which is higher than synthetic antioxidant BHT. Due to higher antioxidant level and activity of shoot and flower of D. zawdskii var. lucidum is promising material for natural plant antioxidant. It was also shown that antioxidant activity is different according to plant part ever in same plant, and proper plant species should be used for antioxidant after careful studies.

Dendranthema속의 산국, 감국 및 울릉국화의 꽃과 잎줄기(Shoot)를 80% 에탄올을 용매로 환류냉각추출하여 페놀성물질 함량, DPPH radical과 ABTS radical 소거능, ferrous ion chelating 효과 및 linoleic acid에 대한 지질 과산화 억제활성을 측정하였다. 연구의 결과, 총 폴리페놀 및 플라보노이드 물질 함량은 울릉국화에서 가장 높았으며 특히, 울릉국화 꽃에서 함량이 높았다. DPPH radical과 ABTS radical 소거능 또한 울릉국화 꽃에서 가장 우수하였으며, 울릉국화의 잎줄기에서도 소거능이 높게 나타났다. 그러나 ferrous ion chelating 효과는 산국 꽃에서 가장 높았으며, 울릉국화 꽃에서 가장 낮았다. 지질과산화 억제활성은 울릉국화 잎줄기에서 가장 높았으며, 반응 32일 이후에도 41.01%의 높은 억제활성을 보여 합성 항산화제인 BHT보다 지질산패 억제효과가 우수하였다. 연구의 결과, 울릉국화 꽃 및 잎줄기는 항산화물질함량이 높고 항산화활성이 우수하므로 천연 항산화소재로 적합하였다. 또한 동일한 식물도 부위에 따라 항산화효과가 다른 것을 확인 하였으며, 항산화효과의 종류에 따라 우수한 활성을 보이는 식물종이 각기 다르므로 사용 목적에 따라 식물종을 선택적으로 사용해야 할 것으로 생각되었다.

Keywords

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