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African Journal of Biotechnology

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Preliminary phytochemical and antimicrobial screening of 50 medicinal plants from Nigeria

D Kubmarawa, GA Ajoku, NM Enwerem, DA Okorie

Abstract


Ethanolic extracts of 50 plant species were screened for their antimicrobial activity against Bacillus subtilis, Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and Candida albicans. The results indicated that of the 50 plant extracts, 28 plant extracts inhibited the growth of one or more test pathogens. Four plant extracts showed a broad spectrum of antimicrobial activity. Phytochemical investigation revealed the presence of tannins, saponins, alkaloids, glycosides, flavonoids and essential oils.



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