Antibacterial and antifungal activities of Striga densiflora and Striga orobanchioides

Abstract

Four successive solvent extractions, of Striga densiflora, Benth. and Striga orobanchioides, Benth. have been studied for their antimicrobial activity against certain pathogenic and nonpathogenic bacteria and fungi using the cupplate method. The petroleum ether, chloroform and ethanol extracts of both plants showed antibacterial activity against most of the organisms, whereas the aqueous extracts were found to have no effect against most bacteria. Of the eight extracts, only the petroleum ether extract of Striga orobanchioides has marked antifungal activity against Aspergillus niger.