Abstract
The composition of the volatile oils from the aerial parts of Artemisia spicigera and A. splendens, growing in Iran, was analyzed by GC-MS and GC-FID. A total of 47 constituents from each of the oils (87.6 % and 58.3 % of the total oil of A. spicigera and A. splendens, respectively) were separated and identified. The major components of the A. spicigera oil were cis-chrysanthenyl acetate (24.0 %), camphor (21.0 %), 1,8-cineol (13.9 %) and cis-chrysanthenol (8.5 %), while 1,8-cineol (4.7 %), caryophyllene oxide (3.8 %), valencene (3.5 %) and α-terpenyl acetate (3.4 %) were detected as the major constituents of the oils of A. splendens. The free-radical-scavenging activity of the oils was assessed by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. Both oils showed weak antiradical effect with RC50 values of 55.6 and 106.4 µg/mL, respectively, for A. spicigera and A. splendens. The oils displayed broad and potent insecticidal activity against Oryzaephilus mercator, but no noticeable toxicity towards brine shrimp.
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