Table 1: Overall activity index of different solvent extracts of N. tabacum against different panel of test bacteria.

Solvents % of Antimicrobial Activity
Human Pathogens
(ATCC)
Clinical Isolates Biofilm Forming Uropathogens
Petroleum ether 0 0 0
Chloroform 0 0 0
Diethyl ether 0 0 0
Ethyl acetate 100 100 100
Acetone 0 0 0
Dichloromethane 33.3 25 50
Methanol 66.6 75 100

*Zone of Inhibition ≥ 28 mm2 was considered as active.