Table 10.

Antioxidant properties of the tested samples (IC₅₀ (mg /mL)).

Sources of Leaves and Standards	DPPH	ABTS	CUPRAC	FRAP	PBD	Chelating
In vitro cultures	>3 b	2.99 ± 0.20 c	2.82 ± 0.03 c	1.94 ± 0.01 c	>3 b	0.59 ± 0.01 b
The greenhouse	>3 b	2.20 ± 0.05 b	2.07 ± 0.01 b	1.52 ± 0.02 b	>3 b	0.70 ± 0.09 c
Trolox	0.06 ± 0.01 a	0.09 ± 0.01 a	0.11 ± 0.01 a	0.04 ± 0.01 a	0.52 ± 0.02 a	nt
EDTA	nt	nt	nt	nt	nt	0.02 ± 0.001 a

nt: Not tested. PBD: Phosphomolybdenum. Means ± SDs, followed by the same letters within a column, were not significantly different p < 0.05 by DMRT.