Table 3.

Antibacterial study of the methanolic extract of S. mahagoni (L.) leaves

Bacterial strain	50 mg/mL	25 mg/mL	15 mg/mL	Standard antibiotic (1 mg/mL ampicillin)	Methanol	MIC (mg/mL)	MBC (mg/mL)
	Inhibition zone (mm)
S. aureus	20.2 ± 0.3	14.6 ± 1.2	8.0 ± 0.1	22.0 ± 0.1	NA	12.5	12.5
E. coli	16.4 ± 0.1	12.7 ± 0.1	5.3 ± 0.6	24.0 ± 0.3	NA	12.5	25
S. enterica	19.5 ± 0.4	14.0 ± 0.1	7.6 ± 1.4	24.2 ± 1.2	NA	12.5	12.5
E. aerogenes	20.5 ± 1.0	16.3 ± 0.5	6.0 ± 0.9	24.0 ± 0.2	NA	12.5	12.5
P. vulgaris	18.1 ± 0.2	12.2 ± 1.0	6.2 ± 0.3	22.3 ± 0.4	NA	12.5	25

Ampicillin: positive control, and methanol: negative control. NA no activity