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http://dx.doi.org/10.7318/KJFC.2007.22.3.336

Antioxidant activity of medicinal plant extracts cultivated in Jecheon  

Lee, Bo-Ram (Department of Oriental Medical Food & Nutrition, Semyung University)
Min, Sung-Hee (Department of Oriental Medical Food & Nutrition, Semyung University)
Publication Information
Journal of the Korean Society of Food Culture / v.22, no.3, 2007 , pp. 336-341 More about this Journal
Abstract
Antioxidant activity of Astragalus membranaceus, Polygonatum stenophyllum, Angelica gigas, Acanthopanax sessiliflorus and Angelica pubescens extracts cultivated in Jecheon prepared with different solvents were determined by 1,1-diphenyl-2-picrylhydrzyl(DPPH) radical scarvenging ability and thiocyanate method . The highest hydroxy radical scarvenging activity was shown in Acanthopanax sessiliflorus, while the lowest was in Polygonatum stenophyllum. Angelica gigas showed strong antioxidant activity by thiocyanate method. Methanol extracts and water extracts showed higher antioxidant activities than ethanol extracts. Angelica pubescens showed the highest polyphenol contents and Acanthopanax sessiliflorus showed the highest flavonoid contents. Direct correlation between the hydroxy radical scavenging activity and polyphenol contents or flavonoid contents was established by simple regression(r>0.8) in each solvent extracts. Among medicinal plants cultivated in Jecheon, Acanthopanax sessiliflorus and Angelica pubescens showed strong antioxidant activities. These results suggest that methanol or water extracts of several medicinal plant cultivated in Jecheon could be used as natural antioxidants.
Keywords
antioxidant activity; polyphenol; flavonoid; medicinal plants; Jecheon;
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Times Cited By KSCI : 10  (Citation Analysis)
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