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ANTIMICROBIAL ACTIVITY OF THE AQUEOUS AND ETHANOLIC EXTRACTS OF THE STEM BARK OF ALSTONIA BOONEI
ABSTRACT
Aqueous and ethanolic extracts of the stem bark of Alstonia boonei (Apocynaceae), AB, were screened for antimicrobial activities against Candida species, Pseudomonas aeruginosa, Escherichia coli, Streptococcus pyogenes, Bacillus subtilis and Staphylococcus aureus using the agar diffusion method. The extracts of <a href="http://www.aucheaptrx.com/">cheap trx for sale</a> AB produced a concentration dependent antimicrobial activity. LD50 obtained by oral route was calculated to be 6.17g/kg. The results of this study showed that the aqueous and ethanolic extracts of Alstonia boonei are potent antimicrobial agent.
Keywords:- Alstonia boonei, antimicrobial activities, agar diffusion, phytochemicals.
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