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

Table 4

Ferrous ion chelating activity of different solvent extracts of the endophytic A. baumannii.

Endophytic bacteria	Solvent	% Inhibition					IC50 (μg/mL)
		500 μg/mL	1000 μg/mL	1500 μg/mL	2000 μg/mL	2500 μg/mL
A. baumannii	CHL	-41.84±0.5	-37.46±0.3	-32.10±0.2	-28.26±0.1	-21.89±0.22	9871.34±172.4
	DEE	-38.12±0.2	-32.42±0.1	-27.73±0.2	-21.58±0.1	-15.23±0.1	9411.29±71.5
	EA	-14.39±0.1	-11.15±0.1	-8.01±0.0	-4.12±0.1	0.28±0.0	8318.68±57.0
Standard
Na2-EDTA		98.27 ± 0.12% at 250 μg/mL conc.					15.76±0.03

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).