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Abstract

EVALUATION OF PHYTOCHEMICAL CONSTITUENTS AND ANTIBACTERIAL ACTIVITY IN LEAF EXTRACTS OF SYZYGIUM CUMINI L

C. Satyavathi* and N. Lakshmi Bhavani

ABSTRACT

Jambolan (Syzygium Cumini L) Belongs to the family Myrtaceae is one of the widely used medicinal plants in the treatment of various diseases in particular diabetes. The present investigation has been primed to describe the phytochemical constituents of leaf extracts of S.cumini L. (Jambolan), Jamun is a large evergreen beautiful tree of Indian subcontinent. The leaves of Syzygium cumin L is considered as an antibacterial and also used to strengthen the teeth and gums in folklore medicine. In the present investigation different tests were conducted for the presence of various phytochemical compounds in Syzygium cumini L leaf extracts. Glycosides, Tannins and Phenols were commonly found in ethanol and methanol extracts of leaves that were not seen in the extracts of chloroform and pet ether. Among all the Extracts tested methanolic extracts showed more phytochemicals than the other extracts. Phytochemicals like amino acids, terpenoids and cardioglycosides were not found in leaf methanol, ethanol, chloroform, hot water and pet ether extracts. The analysis revealed activity of leaf extracts of Syzygium cumini L against the bacteria in the order Salmonella typhi, E. coli, Streptococci, Bacillus cereus, Pseudomonas aeruginosa and Bacillus subtilis. All extracts showed maximum activity on Salmonella typhi and E. coli. Ethanol, methanol and hot water extracts showed more inhibition zones against bacteria than the extracts of chloroform and petroleum ether. Results indicated dosage reliant antibacterial activity of leaf extracts of Syzygium cumini L.

Keywords: Phytochemicals, leaf extracts, Syzygium cumini L.


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