Three medicinal plants -
Abutilon mauritianum
,
Bacopa monnifera
and
Datura stramonium
were assessed for phytochemical components and antimicrobial activity. The results revealed that all the three plant extracts contained saponins, tannins and alkaloids. Only
Datura stramonium contained glycosides. The plants exert varying inhibitory effects on
Pseudomonas aeruginosa
,
Klebsiella pneumonia
and
Escherichia coli
. The minimum inhibitory concentration of the plant extracts ranged between 10% (w/v) (
Bacopa monnifera
) and 25% (w/v) (
A. mauritianum and
D. stramonium). Extracts of
Abutilon mauritianum,
Bacopa monnifera and
Datura stramonium could be potential sources of chemotherapeutic agents.