Análisis comparativo de la composición química y enantiomérica del aceite esencial destilado de los cálices, hojas y corteza de la especie amazónica Ocotea quixos Kosterm. ex O.C. Schmidt

Abstract

Abstract: The essential oil (EO) of Ocotea quixoswas isolated by hydrodistillation from the aerial parts collected (cupules, leaves and bark) in southern Ecuador. The chemical composition of the EO was determined by GC-MS and GC-FID analysis using two chromatographic columns, DB-5MSand HP-INNOWax. The major compounds identified were phenylpropanoids; E cinnamaldehyde (33.8%, 25.1%, 44,7%), E methyl cinnamate (35,9%,-,26,6%), E cinnamyl acetate (3,2%,46,0%,5,2%), in cupules, leavesand bark, respectively, which provide antimicrobial properties and the characteristic aroma of the species. In addition, enantiomer pairs were determined for the first time by enantioselective GC-MS;5enantiomer pairs in cupules, 3 in leaves and 3 in bark.