Phytochemical, Antioxidant and Antimicrobial Properties of Parkia biglobosa (African Locust Bean) Pods

onyeisi onyeisi
2013 The Bioscientist  
The use of plant materials for nutrient supply and therapeutic function has necessitated the exploration of the beneficial role of commonly consumed plant materials in multi-disease conditions. Present study investigated the phytochemical, antioxidant and antimicrobial potential of ethanolic extract of Parkia biglobosa pod. Preliminary phytochemical screening showed that it contained saponins, flavonoids, terpenoids, cardiac glycosides, glycosides, carotenoids, steroids, tannins and reducing
more » ... ar. In addition, the ethanolic extract also exhibited 1, 1diphenyl-2-picrylhydrazyl (DPPH) scavenging and ferric ion reducing antioxidant activity which occurred at a concentration dependent manner. Furthermore, antimicrobial study showed that the extract is a potent antibacterial agent without antifungal activity at the concentrations investigated. Minimum Inhibitory Concentration (MIC) of the ethanolic pod extract was 12.80 mg/ml for Staphylococcus aureus, Enterococcus faecalis and Pseudomonas aerugenosa and 25.60 mg/ml for Escherichia coli. This is the same value obtained for the Minimum Bactericidal Concentration (MBC). This study has shown the potential application of ethanolic extract of Parkia biglobosa pod in antioxidant requiring and antibacterial treatment.
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