Journal ArticleOpen Access
DPPH free radical scavenging activity of some Bangladeshi medicinal plants
Authors
Author Affiliations
Jahangirnagar University, Stamford University Bangladesh, Bangladesh University of Engineering and Technology, South Dakota State University
Published InJournal of Medicinal Plants Research
Year2009
Citations129
Abstract
Hydromethanol extracts of fifteen Bangladeshi medicinal plants, traditionally used in different ailments, were evaluated for antioxidant potential using DPPH (1,1-diphenyl-2-picryl hydrazyl) radical scavenging assay. Among the extractsCocos nucifera, Caesalpinia pulcherrima, Punica granatum and Syzygium cumini were found displaying strong (90% or more) DPPH radical scavenging action. Syzygium cumini exhibited the highest radical scavenging, with an IC50value of 4.25 μg/ml compared to the IC50 value of 5.15 μg/ml as shown by the reference antioxidant ascorbic acid, in a dose dependent fashion.
Key words: Antioxidant, medicinal plants, Bangladesh, DPPH free radical.
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