Table 1.

Total phenolic content, total flavonoid content, and free radical scavenging capacity of AO extracts.

Extract	Total phenolics (mgGAE/g)∗∗	Total flavonoids (mgQE/g)∗∗	DPPH scavenging assay		ABTS scavenging assay
			% radical scavenging activity∗	EC50 (μg/mL)	% radical scavenging activity∗	EC50 (μg/mL)
AOH	27.00 ± 2.12	2.26 ± 0.14	0.33 ± 1.31	—	61.03 ± 2.70	11.50 ± 3.85
AOD	12.70 ± 2.13	0.17 ± 0.36	0.05 ± 3.75	—	42.93 ± 8.13	74.04 ± 9.83
AOM	160.35 ± 0.83	46.96 ± 0.09	90.62 ± 0.64	11.32 ± 0.45	99.36 ± 3.29	5.94 ± 1.03
Vitamin C	—	—	—	7.91 ± 1.34	—	4.76 ± 0.71
EGCG	—	—	—	6.89 ± 0.33	—	2.59 ± 0.40

AOH: 1 mg/mL AO hexane extract; AOD: 1 mg/mL AO dichloromethane extract; AOM: 1 mg/mL AO methanol extract; ^∗of 1 mg/mL extract; ^∗∗dry weight sample; values are expressed as the mean ± SD (n = 3).