Effects of Consumption of Rooibos (Aspalathus linearis) and a Rooibos-Derived Commercial Supplement on Hepatic Tissue Injury by tert-Butyl Hydroperoxide in Wistar Rats

Table 1

Polyphenol content and antioxidant activity of the rooibos herbal tea and rooibos-derived commercial supplement.

	Aqueous formulations
	Fermented rooibos	Unfermented rooibos	Rooibos-derived commercial supplement
Total polyphenols (mg GAE/L)	981 ± 118^a	1354 ± 62^b	4836 ± 244^c
Flavanols (mg CE/L)	39 ± 8^a	92 ± 3^b	18 ± 10^a
Flavonols (mg QE/L)	299 ± 49^a	247 ± 19^b	181 ± 22^c
ORAC (µmole TE/L)	14557 ± 905^a	20889 ± 1281^b	33768 ± 2322^c

Values are expressed as mean of three measurements for each aqueous sample ± STD. TE: trolox equivalents; AAE: ascorbic acid equivalents; CE: catechin equivalents; QE: quercetin equivalents; GAE: gallic acid equivalents. Similar letters in rows denote lack of significant difference (P > 0.05), but if letters differ then P < 0.05.