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Screening of the leaves of
three Nigerian medicinal plants for antibacterial activity
Patience O. Adomi
Department
of Medical Microbiology and Parasitology, Faculty of Basic
Health Sciences, College of Health Sciences, Delta State
University, Abraka, Nigeria,
E-mail:
patienceadomi@yahoo.com
Accepted
3 March, 2008 |
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The leaves of three plants, Alstonia boonei, Morinda
lucida and Petiveria alliacea, and latex of A.
boonei were screened for antibacterial activity. In
evaluating antibacterial activity, both aqueous and ethanol
extracts of the plants were used. Agar well diffusion method
was used to determine the antibacterial activity of the
plants. Among the bacterial screened, Pseudomonas
aeruginosa was the most resistant bacterial strain,
while Flavobacterium sp., the most susceptible one.
M. lucida extract was active against all the tested
bacteria. Therefore, this plant can be selected for further
investigation to determine its therapeutic potential. The
latex of A. boonei was not active against any of the
bacteria tested.
Key
words:
Antibacterial activity, medicinal plants, Alstonia boonei,
Morinda lucida, Petiveria alliacea, Nigeria. |
