Fungistatic and fungicidal activity of east African medicinal plants
Okemo, P. O.
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Extracts of the traditionally used medicinal plants Entada abyssinica (stem bark), Terminalia spinosa (young branches), Harrisonia abyssinica (roots), Ximenia caffra (roots), Azadirachta indica (stem bark), Zanha africana (stem bark) and Spilanthes mauritiana (roots and flowers) were investigated for fungistatic and fungicidal activity against Candida spp. and Aspergillus spp. by a microtitre serial dilution technique. Entada abyssinica, T. spinosa, X. caffra, A. indica, and Z. africana showed activity against various Candida species. The minimum inhibitory concentrations (MICs) ranged from 0.006 to > 8 mg ml-1 and the minimum fungicidal concentrations (MFCs) from 0.06 to > 8 mg ml-1. Extracts from S. mauritiana (both roots and flowers) exhibited no activity against Candida spp., but against Aspergillus spp., the MIC and MFC values ranged from 0.13 to 0.25 mg ml-1 and from 0.13 to 1 mg ml-1 respectively. It is concluded that the extracts contain compounds with high antifungal potency.