Abstract
The chemical composition of Pulicaria dysenterica(L.) Bernh. aerial parts essential oil (EO), growing wildin Bosnia and Herzegovina, was presented in the study. In addition to the EO composition, antimicrobial and cytotoxic activities were also tested. The aerial parts of P. dysentericacontained 0.3% of yellow, liquid, fragrant EO. The 51 components identified accounted for 81.09% of the oil. The EO was characterized by the presence of a high concentration of oxygenated sesquiterpenes 51.83% while oxygenated monoterpenes constituted 15.57%, sesquiterpene hydrocarbons 9.32% and non-terpene compounds presented 4.37% of the EO. The dominant compounds were the sesquiterpenes caryophyllene oxide, (E)-nerolidol, β-caryophyllene and monoterpene nerol. The antimicrobial activity of EO was tested against selected ATCC strains of microorganisms, the bacteria Staphylococcus aureus, Pseudomonas aeruginosaand Escherichia coli, and the fungus Candida albicans. The results showed that the investigated EO inhibited the growth of all selected ATCC strains of microorganisms. The best result was obtained against Escherichia colibacteria with MIC value of 1 mgmL-1. The cytotoxicity of EO was measured against the HeLa cell line using the MTT method with IC50of 188.52 μgmL-1.This study has provided scientific baseline data on the therapeutic properties of P. dysenterica. KEYWORDS:Pulicaria dysenterica, essential oil,antimicrobial activity,citotoxicity
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