Study of estimation of L-ascorbic acid, phytochemical analysis and antibacterial activity in fruit juices

Abstract

The fruits of lemon, pomegranate and black grapes were subjected to phytochemical analysis, vitamin C estimation and antibacterial activity. Amla juice was found to contain large amount of vitamin C compared to orange, lemon, pomegranate and black grape juices. Theproteins, carbohydrates, flavonoids, glycosides, alkaloids, steroids, saponins and tannins were present in juices of pomegranate and black grapes while the fruit juices of orange indicated the presence of flavonoids, steroids, glycosides, saponins and tannins. The alkaloids, proteins, carbohydrates, flavonoids and tanninswere found in the juice of amla.The aqueous extract of pomegranate showedanti bacterial activity against B.cereus, E.coli, K.pneumoniae, P.aeruginosa and S.aureus.