Phytochemical and Antimicrobial Properties of Lavandula angustifolia

Abstract: This present study deals with the quantitative and qualitative phytochemical 

screening, the antimicrobial properties and thin layer chromatography of Lavandula

angustifolia leaves extracts. These were achieved using the cold maceration method of 

extraction involving hexane, water (aqueous) and ethanol, to ensure that a wide polarity 

range of components are extracted. Alkaloid, phenol, flavonoids, tannins, terpenes, 

glycosides and steroids were observed present in the leaves extract of this plant. Quantitative 

analysis was also conducted to determine the percentage composition of some of the 

secondary metabolites, and the antimicrobial sensitivity test was carried out using the well 

diffusion method to determine the susceptibility of the plant. It was interesting to note that 

the hexane extract of L. angustifolia have great potential of been used as a phytomedicine 

especially against the deadly salmonella typhi associated diseases e.g fever, malaria and 

typhoid at a better extent than the commercially available erythromycin drug which was used 

as control. This plant extracts were also discovered to be very active against pathogenic 

bacteria like Escherichia coli and Pseudomonas aeruginosa at great and encouraging 

degrees.