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African Journal of Traditional, Complementary and Alternative Medicines
African Ethnomedicines Network
ISSN: 0189-6016
Vol. 5, No. 1, 2008, pp. 51-55
Bioline Code: tc08009
Full paper language: English
Document type: Research Article
Document available free of charge

African Journal of Traditional, Complementary and Alternative Medicines, Vol. 5, No. 1, 2008, pp. 51-55

 en ANTIMICROBIAL ACTIVITY OF SOME MEDICINAL PLANTS USED BY HERBALISTS IN EASTERN PROVINCE, KENYA
Kareru, P. G.; Gachanja, A. N.; Keriko, J M. & Kenji, G. M.

Abstract

The aqueous extracts from medicinal plants commonly used by herbalists in Mbeere, and Embu districts of Eastern province, Kenya, were tested for their inhibitory activity against three selected strains of bacteria. All the selected plant extracts (infusions: 1.0g sample in 100 ml water) investigated showed activity against Escherichia coli check for this species in other resources with inhibition zone diameters ranging from 5.8 – 18.0 mm. Terminalia brownii check for this species in other resources gave the largest inhibition zones against E. coli and Staphylococcus aureus check for this species in other resources . Vernonia lasiopus check for this species in other resources and Tithonia diversifolia check for this species in other resources were inactive to S. aureus and Bacillus subtilis check for this species in other resources , respectively. Eighteen and sixteen plants showed sensitivity of greater than 10 mm against S. aureus and B. subtilis, respectively. All control discs gave zones of inhibition of 12 - 24 mm, which were larger than those of the extracts. The present study validated the use of the selected medicinal plants by the herbalists in the treatment of bacterial ailments caused by the strains of bacteria investigated. Medicinal plants used for non-bacterial diseases also exhibited sensitivity towards bacterial strains tested. This implied they could be used as multi-purpose medicinal plants.

Keywords
Terminalia brownii, inhibition zone, aqueous extract, Escherichia coli, Kenya

 
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