Phytochemical and antibacterial activities of leaf extracts of Nepeta cataria

摘要

The phytochemical screening of the dichloromethane and methanolic extracts showed presence of flavonoids (flavones and flavonols), coumarins and glycosides. These secondary metabolites are considered to be responsible for the antimicrobial activity againstStaphyococcus aureus,Kliebsiella pneumoniaeandSalmonella typhii.The TLC analysis of the dichloromethane extract revealed presence of 3 components with Rfvalues 0.23, 0.46 and 0.69 using the solvents chloroform: methanol in the ratio of 20: 1.