Phytochemistry and Antibacterial activity of Convolvulus arvensis Linn against Escherichia coli

Abstract

In the present research work convolvulus arvensis was investigated for antibacterial activity and phytochemicals analysis. The results of antibacterial activity showed that the effect of different extract of convolvulus arvensis on the growth of E.coli is different in different solvents. Maximum zone of inhibition was shown by acetone and chloroform extract. Ethanol exhibited 2.1cm, Methanol 2.6 cm, while the lowest zone of inhibition was showed by aqueous extract i.e. 1.96cm. Convolvulus arvensis antibacterial activity result indicates that acetone and chloroform have highest antibacterial activity which indicates that parts of convolvulus arvensis have antibacterial chemicals which are dissolved in the solvent and the bacterial agent has diffused in agar medium and inhibited the growth of E. coli. The lowest antibacterial activity is shown by aqueous extract. The results of phytochemical analysis showed that alkaloids, flavonoids, carbohydrates, phlobatannins, saponins, phenols, terpenoids, tannins, cardiac glycosides was found in methanolic and ethanolic extracts, while alkaloids, phlobatannins. Flavonoids, carbohydrates, saponins, phenols and terpenoids were found present in in the rhizome methanolic and ethanolic extracts.