Ethanol, benzene, chloroform and aqueous (cold and hot) extracts of Picralima nitida (seed, stembark and root) were tested against five bacterial strians using the agar-well diffusion method. The ethanol extracts of the root and stembark (Er and Esb) were active against 100% of the test organisms, repectively. The benzene and chloroform extracts exhibited no activity. Of the fifteen extracts teated, 40.0% were active against Staphylococcus aureus ATCC 12600, 20.0% each against Pseudomonas aeruginosa ATCC 10145 and Escherichia coli ATCC 11775, 33.3% against Bacillus subtilis ATCC 6051 and 13.3% against Salmonella kintambo Human 1,13,23:mt: -. The MIC values for the ethanol extracts range from 6.25 to 50 mg/ml, while the MIC values for the cold water seed extract (CWs) was 50 mg/ml. The results provide a rationalization for the traditional use of P. nitida for the treatment of various diseases. African Journal of Biotechnology Vol. 4 (6), pp. 522-526, 2005
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Nkere et al. (2005) studied this question.
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