Table 2.

Zone of inhibition mean (in mm) of plant extract for tested bacteria.

	Concentration	Tested Bacteria
		E. coli	Citrobacter	S. aureus	K. pneumonia	S. typhi
Aqueous-methanol extract	500mg/ml	5.00 ± 0.57a3d2e3	7 ± 1.00a3c1d3e3	6.00 ± 0.57a3c2d3	7.67 ± 0.88a3d2e2	7 ± 0.57a3c2d3e3
	250mg/ml	3.3.00 ± 0.33a3e1	3 ± 1.00a3e1	3.33 ± 0.33a3d1	5.00 ± 0.577a3	4 ± 0.57a3e1
	125mg/ml	2.33 ± 0.33a3	2.673 ± 0.577a3	1.33 ± 0.33a3	2 ± 0.57a3	2.33 ± 0.33a3
	62.5mg/ml	1 ± 0.00a3	1.67 ± 0.577a3	0.00 ± 0.00a3	2.33 ± 0.33a3	1.33 ± 0.33a3
	Chloram 30μg/disc	15.00 ± 0.57	14 ± 1.00	14.67 ± 0.577	14.33 ± 0.88	14.33 ± 0.33

Values are expressed as Mean ± SEM (n=3); analysis was performed with One-Way ANOVA followed by Tukey test with Post Hoc multiple comparisons; ^acompared to positive control, ^bto 500mg/ml, ^cto 250mg/ml, ^dto 125mg/ml, and ^eto 62.5mg/ml; ¹p<0.0, ²p<0.01, and ³p<0.001. The negative control has shown no antibacterial activity; Chloram = Chloroamphinicole as positive control; SEM = Standard Error of Mean.