Preliminary Antimicrobial Profile of Solanum incanum L.: A Common Medicinal Plant

Table 3

Mean bacterial growth inhibition zones of agar disc-diffusion method treated with 50 mg/mL of S. incanum L plant extracts.

Plant parts	Agar disc-diffusion test	Mean of inhibition zone (in mm)
		S. aureus	B. subtilis	E. coli	S. typhi
Fruit	Ethanol extract	6.90	6.95	13.15	11.56
	Streptomycin	18.75	16.78	18.11	20.25
	Gentamicin	15.73	15.68	17.82	21.32
	Aqueous extract	—	—	10.50	10.46
	Streptomycin	16.47	17.59	16.11	15.50
	Gentamicin	16.78	14.56	12.78	16.48
Leaf	Ethanol extract	16.04	13.34	16.06	11.34
	Streptomycin	16.02	15.60	16.02	10.61
	Gentamicin	15.03	14.98	15.03	11.00
	Aqueous extract	13.90	12.56	14.02	10.45
	Streptomycin	18.05	18.56	18.05	19.65
	Gentamicin	16.09	17.45	16.09	14.17
Stem	Ethanol extract	9.70	8.53	9.91	—
	Streptomycin	19.02	18.45	19.02	12.67
	Gentamicin	19.37	17.58	19.37	17.21
	Aqueous extract	—	—	—	—
	Streptomycin	13.83	14.35	13.83	15.38
	Gentamicin	15.66	14.91	15.66	19.24