Estimation of Antibacterial activity of Crude Extracts of Thevetia Peruviana

Antimicrobial activity defined as the method of inhibiting or killing the microbes which causes disease. Various antimicrobial agents are used for this purpose. Antimicrobial may be antibacterial, anti-fungal or antiviral. Various medicinal plants shows vast majority of antimicrobial activity. Present work deals with the antibacterial activity of the crude extract of Thevetia peruviana. For this study flowers and fruits were extracted in water and methanol. Both extracts were treated for activity. Gram positive (Staphylococcus aureus, Bacillus subtilis) and gram negative (Escherichia coli) bacterial strains were used for activity. Marketed formulation of Streptomycin was used as a standard. Both extract shown significant antibacterial activity.