Evaluation of Antibacterial, Anti-inflammatory and Antioxidant Activities of Methanolic Extract of Whole Plant of Eichhornia crassipes

摘要

This study was subjected to investigate in vitro antibacterial, anti-inflammatory and antioxidant activities of methanol extracts of Eichhornia crassipes. In antibacterial activity the methanolic extract exhibited the best antibacterial activity against Staphylococcus aureus, Bacillus subtilis and Escherichia coli, shows the positive result. Out of these three organisms E.coli shows the high zone of inhibition. Inhibition of albumin denaturation technique was used to determine in-vitro anti-inflammatory activity. DPPH free radical scavenging method and hydrogen peroxide scavenging method were used for antioxidant activity. Antibacterial activity was determined by disc diffusion method. In in-vitro anti-inflammatory investigation there is a linear relation of %inhibition for the Eichhornia crassipes which indicates having positive anti-inflammatory property. In DPPH free radical was calculated by using log dose inhibition curve. Lower absorbance of the reaction mixture indicated higher free radical activity and compared with standard ascorbic acid. Eichhornia crassipes may pocesss potent antibacterial activity, anti-inflammatory, as well as good antioxidant.