Evaluation of the antimycobacterial activity of crude extracts and solvent fractions of selected Ethiopian medicinal plants

Table 3 Antimycobacterial activity test of Pterolobium stellatum chloroform extract against MDR-TB clinical isolates

		MDR-TB clinical isolates’ suspension color
Plant extracts and controls	Concentration (mg/ml or %)	AOA8W-4	AOZ8W-4	SO38SW-4
P. stellatum CHCl₃ extract	2.500	blue	blue	blue
	1.250	blue	blue	blue
	0.625	blue	blue	blue
	0.312	blue	blue	blue
	0.156	blue	blue	blue
	0.078	pink	blue	pink
	0.039	pink	pink	pink
	0.019	pink	pink	pink
	0.009	pink	pink	pink
	0.005	pink	pink	pink
	0.0024	pink	pink	pink
DMSO control	2.5–0.0024%	Pink	Pink	Pink
Isoniazid	1 ×10⁻³	Pink	Pink	Pink
	0.5 ×10⁻³	Pink	Pink	Pink
	0.25 ×10⁻³	Pink	Pink	Pink
	0.125 ×10⁻³	Pink	Pink	Pink
	0.06 ×10⁻³	Pink	Pink	Pink
	0.03 ×10⁻³	Pink	Pink	Pink
Growth control	-	Pink	Pink	Pink
Sterility control	-	blue	blue	blue

Experiments were carried out in triplicate and results are expressed as means of three replicate experiments. - = Not applicable

ISSN: 2662-7671