Phytochemical Analysis and Biological Activities of Cola nitida Bark

Table 6

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

	DPPH		ABTS
	IC50	AAI
	(g⋅l^−1)		(molEqAA⋅g^−1)
Ethanol extract	9.00 ± 1.73	5.71 ± 1.23	49.72 ± 0.35
Ethyl acetate extract	4.53 ± 0.98	11.02 ± 1.49	53.39 ± 0.0
Quercetin	4.51 ± 0.35	11.11 ± 0.85	—
Gallic acid	0.73 ± 0.12	62.74 ± 5.54	—
Ascorbic acid	—	—	35.02 ± 0.73