GC-MS Based Metabolite Profiling, Antioxidant and Antimicrobial Properties of Different Solvent Extracts of Malaysian Plectranthus amboinicus Leaves

Table 3

Antibacterial activity of different solvent extracts of P. amboinicus at different concentrations.

Solvent extracts (μg/disc)	Zone of (mm)
	Bacillus subtilis; B29	Staphylococcus aureus	Pseudomonas aeruginosa; ATCC 15442	Escherichia coli; E266	Candida albicans; 90028
Hexane
100				—
200				—
300				—
Methanol
100
200
300
Acetone
100				—
200				—
300				—

experiment included DMSO (20 μL) as negative control while streptomycin (100 mg/mL) for bacteria and nystatin (100 mg/mL) for yeast served as positive control. Each value represents the mean ± standard deviation (SD) of 3 replicates per treatment in 3 repeated experiments.
“—” represents no activity observed.
represents Methicillin resistant.