THE IN-VITRO ANTIMICROBIAL EFFICACY OF FOUR METHANOL AND HEXANE EXTRACTED HERBAL CONCOCTIONS AGAINST Pseudomonas aeruginosa AND Bacillus Subtilis BACTERIA

THE IN-VITRO ANTIMICROBIAL EFFICACY OF FOUR METHANOL AND HEXANE EXTRACTED HERBAL CONCOCTIONS AGAINST Pseudomonas aeruginosa AND Bacillus Subtilis BACTERIA.

Mercy Munkhondya

Abstract

Antimicrobial activities of hexane- and methanol-extracted concoctions of Kigelia Africana (root, bark, and fruit), Carica papaya leaves, Zingiber officinale (ginger) rhizomes and Jateorhiza palmitate (Calumba) root (usually used as herbal medicines by many people from different parts of the world) were examined against two species of pathogenic microorganisms: Pseudomonas Aeruginosa and Bacillus Subtilis using sensitivity testing of streaked cultures on Petri dishes. All concoctions from all four herbal plants showed antimicrobial activities, especially the methanol-extracted concoctions against the tested microorganisms. Phytochemical screening of the samples revealed the presence of some bioactive components like alkaloids, saponins, tannins, anthraquinones, anthocyanins, flavonoids, and terpenes. These phytochemical properties determine the anti-microbial potential of the herbal extracts.