Secondary Metabolites Profiling of Acinetobacter baumannii Associated with Chili (Capsicum annuum L.) Leaves and Concentration Dependent Antioxidant and Prooxidant Properties

Table 3

DPPH radical scavenging activity of different solvent extracts of the endophytic A. baumannii.

Endophytic bacteria	Solvent	% Inhibition					EC50 (μg/mL of extract)
		62.5 μg/mL	125 μg/mL	250 μg/mL	500 μg/mL	1000 μg/mL
baumannii	CHL	-18.87±0.2	-17.63±0.5	-16.39±0.2	-12.12±0.1	-5.37±0.2	5626.28±112.2
	DEE	-2.30±0.2	-1.42±0.2	-0.09±0.2	1.84±0.0	6.70±0.2	4848.87±74.8
	EA	-4.36±0.0	-2.66±0.0	-1.10±0.1	1.88±0.2	6.80±0.2	4738.51±101.8
Standard
Gallic Acid		41.51±0.16	45.22±0.08	52.66±0.52	68.18±0.01	94.17±0.32	204.38±1.78
Ascorbic Acid		30.85±0.24	35.40±0.41	45.50±0.42	63.50±0.55	96.42±0.01	325.44±2.06

Results are shown as mean±SD (n=3).
Significant differences among the mean values of each column determined by Tukey’s HSD test (P < 0.05) are indicated by different letters (a–c).