Studies on Chemical Composition and Antioxidant Activity of Rudbeckia triloba

Table 4

Total antioxidant capacity of extracts obtained from different aerial parts of Rudbeckia triloba.

Vegetable material	EC50 (% (v/v))
	Infusion	Decoct	Macerate
Petals	0.51 ± 0.03	0.61 ± 0.03	0.32 ± 0.02
Leaves	1.01 ± 0.05	2.52 ± 0.13	0.62 ± 0.03
Seeds	2.22 ± 0.11	3.41 ± 0.17	0.88 ± 0.04