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

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.

Acknowledgement

Supported by : 충북대학교