Table 2.

Antiplatelet activity of phenolic compounds.

Compounds	Platelet antiaggregant activity (%)
	ADP	Collagen	TRAP-6	AA
Chlorogenic acid	69 ± 5 *	50 ± 5 *	19 ± 4 *	22 ± 5 *
Caffeic acid	35 ± 5 *	42 ± 6 *	25 ± 5 *	20 ± 3 *
Ferulic acid	47 ± 4 *	36 ± 3 *	NS	NS
p-Coumaric acid	71 ± 6 *	69 ± 5 *	41 ± 6 *	NS

Values are presented as mean ± SEM (n = 3). ADP 8 µmol/L, collagen 1.5 μg/mL, TRAP-6 30 µmol/L and AA 1 mmol/L. Phenolic compounds at 0.5 mmol/L. * p < 0.05 vs. negative control (saline 0.9%). NS = no significance.