In vitro antibacterial, antioxidant and cytotoxic activity of acetone leaf extracts of nine under-investigated Fabaceae tree species leads to potentially useful extracts in animal health and productivity

Table 2 Minimal inhibitory concentration (MIC in μg/mL) and total activity (TA in mL/g) of acetone leaf extracts from nine plants of the Fabaceae family against bacterial strains

Plant name	Extraction yield (%)	ME (mg)	Microorganisms
			S. aureus		E. faecalis		B. cereus		E. coli		P. aeruginosa		S. typhimurium
			MIC	TA	MIC	TA	MIC	TA	MIC	TA	MIC	TA	MIC	TA
Baphia racemosa	3.7	37	310	119.35	160	231.25	625	59.20	625	59.20	>1000	<37	625	59.20
Crotalaria capensis	4.6	46	625	73.60	80	575	310	148.39	625	73.60	625	73.60	20	2300
Dalbergia nitidula	4.2	42	160	262.5	160	262.5	80	525	160	262.5	310	135.48	160	262.5
Erythrina caffra	3.9	39	>1000	<39	80	487.5	310	125.81	160	243.75	160	243.75	310	125.81
Indigofera cylindrica	1.9	19	625	30.40	310	61.29	160	118.75	310	61.29	310	61.29	40	475
Lonchocarpus nelsii	0.9	9	>1000	<9	80	112.5	625	14.40	625	14.40	>1000	<9	80	112.5
Podalyria calyptrata	3.4	34	>1000	<34	625	54.40	>1000	<34	310	109.68	>1000	<34	160	212.5
Virgilia divaricata	8.9	89	310	287.1	625	142.40	80	1112.5	310	287.1	>1000	<89	80	1112.5
Xylia torreana	1.2	12	310	38.71	160	75	160	75	310	38.71	310	38.71	160	75
Gentamicin	nd	nd	0.2	nd	0.2	nd	0.8	nd	0.4	nd	0.2	nd	1.56	nd

Mass in mg extracted from 1 g (ME).
Values in bold indicate MICs lower than 100 μg/mL and total activity higher than 1000 ml/g, nd: not determined.

ISSN: 2662-7671