Biological activity studies of the aerial parts of Phyllanthus niruri L.

Phyllanthus niruri L. is a small annual plant grows up to 30-40 cm tall. It an herbaceous that widely distributed in the tropical and sub-tropical regions. The aerial parts of P. growing Bangladesh were investigated for moisture content ash content, total phenolic flavonoid antioxidant capacity (TAC), cytotoxicity, relative fatty acid compositions antibacterial activity. dried leaves 5 7%, respectively. extracts contained good amount revealed significant capacity. highest TAC was shown by dichloromethane fraction (131.3±9.20) it followed 80% ethanol extract (126.1±6.25) then ethyl acetate (122.5±10.65). present fraction, whereas lowest hexane fraction. Cytotoxicity found extract, aqueous fractions. Fatty acids like lauric (0.5%), tetradecanoic (1%) palmitoleic (37%),octadecanoic (57%) cis-9-oleic (5%) identified quantified GC-FID octadecanoic predominant among all acids. activity tested against two Gram negative (Escherichia coli, Salmonella typhi) positive (Bacillus subtilis Staphylococcus aureus) bacteria following agar diffusion method. results weak