title: Eugenol and methyl eugenol chemotypes of essential oil of species Ocimum gratissimum L. and Ocimum campechianum Mill. from Colombia.
abstract: Essential oils chemical constituents of leaves of O. gratissimum and O. campechianum of the Lamiaceae family, collected in Chocó of northwest Colombian, were obtained by microwave-assisted hydrodistillation and analyzed by gas chromatography coupled with mass spectrometry. A total of 33 and 37 compounds were identified in the essential oil of O. gratissimum and O. campechianum, respectively. O. gratissimum's main essential oils were eugenol (43.2%), 1,8-cineole (12.8%) and beta-selinene (9.0%); in the O. campechianum essential oil, the main components were methyl eugenol (12.0%), germacrene D (10.1%), and eugenol (9.0%). Main distribution of compounds in these essential oils are 25.0% monoterpenes hydrocarbons, 15.0% monoterpenes oxygenated, 35.0% sesquiterpenes hydrocarbons, 7.5% other oxygenated components for O. gratissimum, 33.9% sesquiterpenes hydrocarbons, and 10.7% their respective oxygenated derivates; for O. campechianum, the distribution was 10.7% monoterpenes hydrocarbons and 7.1% their respective oxygenated derivates and 3.6% phenylpropanes. According to the essential oils chemical composition of Ocimum gratissimum and O. campechianum, they are classified as eugenol and methyl eugenol chemotype, respectively.
authors.affiliation: Universidad Tecnológica del Chocó, bloque 6 laboratorio 316, Grupo de Productos Naturales, Quibdó-Chocó, Colombia.
authors.forename: Nayive
authors.initials: N
authors.lastname: Pino Benitez
authors.forename: Erika M
authors.initials: EM
authors.lastname: Meléndez León
authors.forename: Elena E
authors.initials: EE
authors.lastname: Stashenko
mesh_terms: D003105:Colombia; D005054:Eugenol / Q000031:analogs & derivatives* / Q000737:chemistry*; D031339:Ocimum / Q000737:chemistry*; D009822:Oils, Volatile / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils; C005223:methyleugenol; D005054:Eugenol