Table 1.

Antioxidant potential of the investigated medicinal plants leaf extracts

Extracts	Ferric reducing antioxidant power1	Iron chelating activity2	DPPH Scavenging activity3	Superoxide scavenging activity3	Nitric oxide scavenging activity3
A. integrifolia	5.8 ± 0.6d,****	655.7 ± 50.4a,****	9.4 ± 0.9c,****	9.4 ± 2.6b,****	528.4 ± 18.0b,****
L. glauca	12.1 ± 0.5a,****	6783.0 ± 1562.0c,*	2.2 ± 0.1a,**	7.6 ± 0.3a,b,*	10.5 ± 1.0a
G. psychotrioides	9.9 ± 0.7b,****	2189.0 ± 483.3b,****	2.8 ± 0.3a,****	6.4 ± 0.6a	21.7 ± 6.4a
E. tinifolia	8.4 ± 0.5c,****	674.1 ± 87.7a,****	4.4 ± 0.4b,****	8.9 ± 1.1b,***	15.6 ± 2.0a
Gallic acid	24.9 ± 0.9	8002.0 ± 169.6 (47.0 ± 1.0 mM)	0.7 ± 0.1 (3.9 ± 0.6 μM)	5.5 ± 0.2 (32.1 ± 1.3 μM)	9.9 ± 3.4 (58.4 ± 20.1 μM)

¹1Values are expressed in mmol Fe²⁺;

²IC₅₀ values are expressed in μg/ml;

³IC₅₀ values are expressed in μg/ml;

Data represent a mean ± standard deviation (n = 3).

Different letters between rows in each column represent significant differences between the extracts (p < 0.05).

Asterisks represent significant differences between the extracts and gallic acid (positive control),

^*p ≤ 0.05,

^**p ≤ 0.01,

^***p ≤ 0.001,

^****p ≤ 0.0001.