Korean Journal of Pharmacognosy (생약학회지)

The Korean Society of Pharmacognosy (한국생약학회)
권호 표지

Screening for Antioxidant Activity of Plants and Marine Algae and Its Active Principles from Prunus davidiana

  • Choi, Jae-Sue (Dept. of Nutrition and Food Science, National Fisheries University of Pusan) ;
  • Lee, Ji-Hyeon (Dept. of Nutrition and Food Science, National Fisheries University of Pusan) ;
  • Park, Hae-Jin (Dept. of Nutrition and Food Science, National Fisheries University of Pusan) ;
  • Kim, Hyung-Geun (Dept. of Fisheries Resources Development, Kangnung National University) ;
  • Young, Han-Suk (College of Pharmacy, Pusan National University) ;
  • Mun, Sook-Im (Dept. of Food and Nutrition, Dong-Joo Women's Junior College)
  • Published : 1993.12.30
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Abstract

The antioxidant activity of methanol extracts of plants and marine algae was tested by using 1,1-diphenyl-2-picrylhydrazyl(DPPH). Five plant extracts(Prunus davidiana, Eriobotrya japonica, Artemisia iwayomogi, Stirodella tolyrrhiza and Ulmus davidiana) and two algae (Ecklonia stolonifera and Symphycoladia latiuscula) were found to be the most effective in DPPH radical scavenging activity. The methanol extract obtained from the stems of Prunus davidiana was fractionated with several solvents. The ethylacetate soluble fraction exhibiting the strongest antioxidant activity was further purified by repeated silica gel and Sephadex LH-20 column chromatography. Antioxidant flavonoids and flavonoid glycosides were isolated and the most active ones was identified as (+)-catechin by MS, $^1H-NMR$ and $^{13}C-NMR$. Its antioxidant activity was higher than that oil vitamin C.

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