Table 3.

The FRAP and DPPH scavenging activities of GIE and standard compounds.

Sample	FRAP values		DPPH scavenging activity (IC50) μg/mL
	(μg VCEA/mg of dry extract)	(μg TREA/mg of dry extract)
GIE	24.00 ± 0.69	28.06 ± 0.78	406.59 ± 0.11c
Vitamin C	—	—	44.57 ± 0.59a
Trolox	—	—	67.19 ± 4.82b

Values are mean ± S.D. (n = 3) and are representative of three independent experiments with similar results. One-way ANOVA performed the comparison, and Tukey was used as a post hoc test. The degree of significance was denoted with different letters for the comparison between sample groups. p < 0.05 was considered as statistically significant.