Study of antibacterial activity of leaf, stem, root methanolic extract from Delonix regia

Abstract

Medicinal plants are also potent source of biologically active compound and offering broad spectrum of Activity. The present study was aimed evaluating and comparing antimicrobial spectrum of Methanolic Extract of leaves, roots, stem of Delonix regia which is also known as Gulmohar. Its antibacterial activity was performed by using gram negative bacteria Escherichia coli and gram positive bacteria Staphylococcus aureus by agar well diffusion method with Dimethylsulfoxide (DMSO) as standard. The Antibacterial activity was measured by different concentrations of D. regia with its minimum dose (20ug/ml) and maximum dose (100ug/ml) and DMSO (100ug/ml). It was evaluated by measuring the zone of inhibition in millimetres. It can be concluded that methanolic extract of Delonix regiawas found to have antibacterial activity and it is effective against E. coli and Staphylococcus aureus and it also indicate that Methanolic Extract of plant is potentially good for therapy of Antibacterial-resistant bacteria.