Contribution and Interactions of Hydroxycinnamic Acids Found in Bran and Wholegrain Sorghum (Sorghum bicolor L. Moench): Effects on the Antioxidant Capacity and Inhibition of Human Erythrocyte Hemolysis

Table 1

Total phenolic content and hydroxycinnamic acid content of the free and bound fractions from WG and SB.

Sample	TPC	Total HCA	Caffeic	p-Coumaric	Ferulic	Sinapic
FPW	784.3 ± 29.2^c	42.6 ± 1.10^c	10.2 ± 1.0^b	18.1 ± 1.8^c	12.2 ± 0.2^d	2.1 ± 0.0^b
BPW	2107.9 ± 40.3^b	718.3 ± 12.49^b	ND	38.7 ± 0.2^b	679.6 ± 12.3^b	ND
FPB	2022.2 ± 31.4^b	46.4 ± 0.90^c	14.8 ± 0.5^a	8.6 ± 0.4^d	19.6 ± 0.4^c	3.4 ± 0.1^a
BPB	7425.0 ± 318.7^a	3205.0 ± 90.69^a	ND	169.0 ± 3.5^a	3036.0 ± 87.5^a	ND

FPW: free phenolics from wholegrain sorghum; FPB: free phenolics from sorghum bran; BPW: bound phenolics from wholegrain sorghum; BFB: bound phenolics from sorghum bran; TPC: total phenolic content (μg GAE/g); Total HCA: total hydroxycinnamic acids content (μg/g); ND: not detected. Each value is the mean of three replicates ± the standard deviation (SD). Different superscript letters in the same column represent significant differences () between free and bound fractions from WG and SB.