Bioactivities of Traditional Medicinal Plants in Alexandria

Table 4

DPPH and β-carotene-linoleic acid assay of A. aethiopicus, C. colocynthis, S. alexandrina, B. juncea, C. longa, C. citratus, G. pillansii, and K. delagoensis methanolic extracts. Values are expressed as mean of triplicate determinations ± sd.

	DPPH free radical scavenging activity (IC50, μg mL^−1)	-Carotene-linoleic acid assay (IC50, μg mL^−1)
Asparagus aethiopicus (leaves)	3.1 ± 0.1	2.7 ± 0.1
Asparagus aethiopicus (fruit)	8.4 ± 0.1	9.9 ± 0.1
Asparagus aethiopicus (tubers)	8.1 ± 0.1	9.5 ± 0.1
Citrullus colocynthis (fruit coat)	2.4 ± 0.1	2.3 ± 0.1
Citrullus colocynthis (fruit flesh)	6.5 ± 0.2	7.8 ± 0.3
Citrullus colocynthis seeds	7.8 ± 0.1	8.9 ± 0.3
Senna alexandrina (pods or fruit)	2.6 ± 0.1	2.4 ± 0.1
Brassica juncea (seeds)	5.4 ± 0.1	6.2 ± 0.1
Curcuma longa L. (roots)	7.3 ± 0.3	8.2 ± 0.1
Cymbopogon citratus (leaves)	8.3 ± 0.3	9.4 ± 0.3
Gasteria pillansii (leaves)	5.4 ± 0.1	6.5 ± 0.1
Kalanchoe delagoense L. (leaves)	4.1 ± 0.1	4.9 ± 0.1
BHT	2.9 ± 0.2	2.6 ± 0.1