Biochemistry Research International / 2015 / Article / Tab 6

Research Article

Phytochemical Analysis and Biological Activities of Cola nitida Bark

Table 6

Parameters of free radical scavenging activity by DPPH radical and ABTS methods.

DPPHABTS
IC50AAI
(g⋅l−1)(molEqAA⋅g−1)

Ethanol extract9.00 ± 1.735.71 ± 1.2349.72 ± 0.35
Ethyl acetate extract4.53 ± 0.9811.02 ± 1.4953.39 ± 0.0
Quercetin4.51 ± 0.3511.11 ± 0.85
Gallic acid0.73 ± 0.1262.74 ± 5.54
Ascorbic acid 35.02 ± 0.73

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