Table 2.

Phenolic content and antioxidant capacity of aqueous rooibos (2%, w/v) extract.

Soluble solids (mg/mL)	Total phenolic content (mg gallic acid equivs/mg soluble solids)	Flavonol content (mg quercetin equivs/mg soluble solids)	Flavanol content (mg catechin equivs/mg soluble solids)	FRAP (µmol AAE/mL)	TEAC (µmol TE/mL)	ORAC (µmol TE/mL)
2.743 ± 0.26	0.303 ± 0.006	0.159 ± 0.004	0.058 ± 0.002	4.90 ± 0.35	5.22 ± 0.22	14.72 ± 1.57

Values are mean ± SEM. Soluble solids content is a mean of 15 determinations while other parameters are mean of 6 determinations. AAE: ascorbic acid equivalent, TE: trolox equivalent, FRAP: ferric reducing ability of the plasma, ORAC: oxygen radical absorbance capacity, TEAC: trolox equivalent antioxidant capacity.