STUDIES ON ANTIBACTERIAL AND PHYTOCHEMICAL POTENTIAL OF PLUMBAGO ZEYLANICA LINN. (PLUMBAGINACEAE) FROM JHARGRAM DISTRICT, WEST BENGAL, INDIA

The antibacterial activity of Plumbago zeylanica Linn.(Plumbaginaceae) leaf, stem, flower and root extract was evaluated on microbial strains like gram positive species Staphylococcus aureus and gram-negative species Pseudomonas aeruginosa.The in vitro antibacterial assay was done by agar well diffusion method.Different solvents like ethanol, methanol, acetone, hexane and water were used for extraction of plant.The acetone and ethanol extracts of Plumbago zeylanica Linn.Root shows maximum antibacterial activity.Different phytoconstituents like alkaloid, phenols, flavonoids, and terpenoids were present in different solvent extracts of the plant.These phytochemicals may be responsible for antibacterial activity.