Microbiological profiling and the demonstration of in vitro anti-bacterial traits of the major oral herbal medicines used in Dhaka Metropolis

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Table 2 Antimicrobial activity of the herbal medicine samples tested

Herbal medicine samples (concentration in mg/mL)	Zone of inhibition (mm) against test bacteria
Herbal medicine samples (concentration in mg/mL)	*E. coli*	*Klebsiella* spp.	*Salmonella* spp.	*Vibrio* spp.	*Pseudomonas* spp.	*Bacillus* spp.	*Staphylococcus* spp.	*Listeria* spp.
Sample 1 (2.4)	0	0	0	0	0	0	0	11 mm
Sample 2 (0.4)	11 mm	15 mm	20 mm	20 mm	17 mm	20 mm	18 mm	20 mm
Sample 3 (0.6)	0	11 mm	0	0	0	0	0	7 mm
Sample 4 (1.0)	0	0	0	0	0	0	0	0
Sample 5 (3.5)	0	18 mm	0	10 mm	11 mm	10 mm	0	10 mm
Sample 6 (2.5)	0	16 mm	0	0	0	8 mm	0	9 mm
Sample 7 (3.1)	0	0	0	0	0	0	0	0
Sample 8 (6.4)	0	0	0	0	0	0	0	0
Sample 9 (0.9)	0	11 mm	0	13.9 mm	0	0	0	0
Sample 10 (1.5)	0	0	0	12 mm	0	0	0	0

The experiments were conducted three times independently, and the results were found to be reproducible. One representative data has been shown.