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KMID : 1147720100030040267
Journal of Acupuncture and Meridian Studies
2010 Volume.3 No. 4 p.267 ~ p.271
Evaluation of Antioxidant Potential of Melanthera scandens
Adesegun Sunday Adeleke

Alabi Sukurat Olasumbo
Olabanji Patricia Taiwo
Coker Herbert Alexander Babatunde
Abstract
A methanol extract of dried leaves of Melanthera scandens was examined for antioxidant activities using a variety of assays, including 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging, reducing power, ferrous chelating, and ferric thiocyanate methods with ascorbic acid and EDTA as positive controls. The extract showed noticeable activities in most of these in vitro tests. The amount of phenolic compounds in the extract expressed in gallic acid equivalent was found to be 52.8 mg/g. The extract demonstrated inhibition of linoleic acid lipid peroxidation, active reducing power, and DPPH radical scavenging activities which were less than that of the positive controls. The extract also showed weaker iron chelating effect when compared with the EDTA positive control. The present results showed that M. scandens leaf extract possessed antioxidant properties and this plant is a potential useful source of natural antioxidants.
KEYWORD
antioxidant activities, lipid peroxidation, Melanthera scandens, radical scavengindg, reducing power
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