Abstract
The essential oil composition fromthe aerial parts of Ormenis africana(Asteraceae), an endemic species fromMorocco, has been investigated by GC/MS. Atotal of 31 compounds were identified,representing 77%. After fractionation bycolumn chromatography, the main compoundwas isolated and its structure elucidated byNMR spectroscopy. The essential oil wasdominated by oxygenated compounds withspathulenol (45.8%) followed by camphor(7.1%), -cadinol (5.9%) and -bisabolol(5.9%) as the main compounds. This oil can beclassified as spathulenol-type according to itsspathulenol content. In vitro the antibacterialactivity of the whole essential oil against threeGram positive (Bacillus cereus, Enterococcusfaecalis, Streptococcus C) bacteria and threeGram negative (Proteus vulgaris, Escherichiacoli, Pseudomonas aeroginosa) bacteria,showed significant results.
Published Version
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