Table 1.

Total antioxidant activity of ethanol extract from Acridocarpus orientalis expressed as ascorbic acid equivalents (mmol/g of dry extract). Trolox was used as positive control.

Extract	FRAP Assay	ABTS Assay		DPPH Assay		β-Carotene Assay
	TAC (mmol/g)	TAC (mmol/g)	IC50 (µg/mL)	TAC (mmol/g)	IC50 (µg/mL)	IC50 (µg/mL)
Acridocarpus-Al Ain (a)	1.10 ± 0.01	1.04 ± 0.02	58.06 ± 1.39 b,c	1.14 ± 0.01	29.84 ± 0.59 b,c	5.0 ± 0.04 b,c
Acridocarpus-Oman (b)	0.96 ± 0.02	0.98 ± 0.01	72.32 ± 1.61 a,c	1.04 ± 0.36	32.44 ± 0.34 a,c	6.32 ± 0.04 a,c
Trolox (c)	3.86 ± 0.09 a,b	1.83 ± 0.45	33.58 ± 1.43 a,b	3.99 ± 0.03	10.07 ± 0.09 a,b	3.03 ± 0.04 a,b

Values are means ± SE of three experiments. Data with on letters are significantly different (p < 0.05).