African Journal of
Pure and Applied Chemistry

  • Abbreviation: Afr. J. Pure Appl. Chem.
  • Language: English
  • ISSN: 1996-0840
  • DOI: 10.5897/AJPAC
  • Start Year: 2007
  • Published Articles: 357

Full Length Research Paper

Phytochemical and antibacterial activities of leaf extracts of Nepeta cataria

Edewor, T.  I.1* and Usman, L. A.2
1Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, Ogbomoso, Nigeria. 2Department of Chemistry, University of Ilorin, Ilorin, Nigeria.
Email: [email protected]

  •  Accepted: 07 December 2011
  •  Published: 30 December 2011


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 against Staphyococcus aureusKliebsiella pneumoniae and Salmonella 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.


Key wordsNepeta cateria, flavonoids, glycosides, bacteria, dichloromethane.