Free radical scavenging activity of methanolic extract of brown alga Spatoglossum asperum
ABSTRACT:
The methanolic extract of Spatoglossum asperum showed
radical scavenging activity against DPPH, ABTS, superoxide and nitric oxide
radicals. Although the concentrations of methanolic extract of S.asperum. for
antioxidant activity were much higher than that of standard drugs when tested
in various assays, their maximal effects were approximately the same. For
antioxidant activities, the methanolic extracts showed an increase with
increasing concentration (between 100 and 900 µg/ml) indicating the dose
dependency of these algal extract. The significant free radical scavenging
activity of Spatoglossum asperum indicated that it could be a potential source
of natural antioxidant lead molecules.
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