Pharmacological activities of leaf and bark extracts of a medicinal mangrove plant Avicennia officinalis L.

Clinical Phytoscience

International Journal of Phytomedicine and Phytotherapy

Table 5 Radical scavenging potentials of ethanol leaf and bark extracts of A. officinalis

Sample	Concentration (μg/ml)	DPPH scavenging		ABTS scavenging		Superoxide scavenging
Sample	Concentration (μg/ml)	% of scavenging	IC₅₀ (μg/ml)	% of scavenging	IC₅₀ (μg/ml)	% of scavenging	IC₅₀ (μg/ml)
EB	50	26.94 ± 2.22	112	35.89 ± 2.13	114	34.55 ± 0.47	82
	100	49.81 ± 1.25		49.33 ± 1.15		64.02 ± 1.49
	150	61.75 ± 2.08		56.96 ± 1.63		85.6 ± 0.95
EL	50	25.1 ± 0.42	200	88.91 ± 0.34	41.9	8.88 ± 0.0.74	207.6
	100	29.36 ± 2.05		92.49 ± 0.34		15.16 ± 1.04
	150	33.69 ± 2.52		93.94 ± 0.68		40.47 ± 0.96
Standard			47.5		76.5		83