FLOWER RESEARCH JOURNAL (화훼연구)

The Korean Society for Floricultural Science (한국화훼학회)
권호 표지

Antioxidant Activities of Chrysanthemum frutescens, Coreopsis lanceolata, Matricaria recutica and Hieracium pilosella Flower Extracts by Extraction Solvent

추출용매에 따른 마가렛트, 큰금계국, 저먼캐모마일, 알프스민들레 꽃 추출물의 항산화 효과

  • 우정향 (충북대학교 응응생명환경공학부 원예과학과) ;
  • 신소림 (충북대학교 응응생명환경공학부 원예과학과) ;
  • 장영득 (충북대학교 응응생명환경공학부 원예과학과) ;
  • 이철희 (충북대학교 응응생명환경공학부 원예과학과)
  • Received : 2009.07.14
  • Accepted : 2009.09.23
  • Published : 2009.09.30

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Abstract

Present studies were conducted to investigate the effects of water and 80% ethanol solvent on antioxidant activities of flower extracts of Chrysanthemum frutescens, Coreopsis lanceolata, Matricaria recutica, and Hieracium pilosella. Extraction yields of water extracts ranged 27.15~40.25% and 80% ethanol extracts 24.92~42.84%, respectively. In all species polyphenol and flavonoid contents were higher with 80% ethanol extraction, especially in C. lanceolata. Same results were obtained with scavenging effects on DPPH and ABTS radicals and ferrous ion chelating effects. Scavenging activity of flower extracts on DPPH radicals was highest in H pilosella - higher than that of synthetic antioxidant DHT. Higher scavenging activity on ABTS radicals was observed with M. recutica. Generally Compositae flower extracts exhibited higher scavenging activity on ABTS radicals than DPPH. Scavenging activity on ABTS radicals of M. recutica and P pilosella were superior to those of ascorbic acid and BHT. Ferrous ion chelating effects were much higher with H. pilosella flower extracts by 80% ethanol. Chelating effects of 4 species were much lower than those of EDTA. In conclusion, to develop natural antioxidant from above 4 Compositae species, 80% ethanol is recommended for efficient solvent to obtain maximum antioxidant isolation and activity.

본 연구는 불과 80% 에탄올 용매가 마가렛트, 큰금계국, 저먼캐모마일 및 알프스민들레 꽃 추출물의 항산화효과에 미치는 영향을 탐색하기 위해서 수행하였다. 추출수율은 물 추출물에서 27.15~40.25%, 80% 에탄올 추출물에서 24.92~42.84%로 나타났다. 총 폴리페놀 및 총 플라보노이드의 함량은 4종 모두 80% 에탄올 추출물에서 많게 나타났으며, 큰금계국 꽃의 80% 에탄올 추출물에서 함량이 가장 많았다. 4종 꽃 추출물의 DPPH radical 소거능, ABTS radical 소거능 및 $Fe^{2+}$ chelating 효과는 모두 80% 에탄올 추출물에서 높았다. DPPH radical 소거능은 알프스민들레 꽃의 80% 에탄올 추출물에서 기장 높았으며, 합성 항산화제인 BHT 보다 소거활성이 높았다. ABTS radical 소거능은 저먼캐모마일 꽃의 80% 에탄올 추출물에서 가장 높았다. 국화과 꽃 추출물은 DPPH radical 보다는 ABTS radical 소거능이 우수하였으며, 저먼캐모마일과 큰금계국 꽃의 80% 에탄올 추출물의 ABTS radical 소거능은 ascorbic acid와 BHT 보다 우수하였다. $Fe^{2+}$ chelating 효과는 알프스민들레 꽃의 80% 에탄올 추출물에서 기장 우수하였다. EDTA와 chelating 효과를 비교한 결과, 4종의 꽃 추출물은 EDTA 보다 chelating 효과가 극히 낮았다. 본 연구의 결과, 마가렛트, 큰금계국, 저먼캐모마일, 알프스민들레 등 국화과 4종의 꽃을 이용하여 천연 항산화제를 개발할 때에는 80% 에탄올을 용매로 추출하는 것이 시료의 항산화 물질 추출 효율 및 항산화 활성을 증가시킬 수 있는 효율적인 방법으로 생각된다.

Keywords

Acknowledgement

Supported by : 충북대학교

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