title: The chemical composition of the essential oils of Euphorbia caracasana and E. cotinifolia (Euphorbiaceae) from Venezuela.
abstract: The essential oils from leaves of E. caracasana Boiss collected from Miyoi, Pueblo Llano, Mérida State at 1800 m above sea level and leaves of E. cotinifolia L collected from Manzano Alto-Ejido, Mérida State at 1520 m were analyzed by GC/MS. Beta-Caryophyllene (33.7 %), alpha-humulene (18.8 %) and aromadendrene (8.4 %) were the major constituents of E. caracasana oil, whereas those of E. cotinifolia oil were beta-caryophyllene (39.3 %), germacrene-D (21.5 %) and alpha-copaene (9.3 %).
authors.affiliation: Organic Biomolecular Research Group, Research Institute, Faculty of Pharmacy and Bioanalysis, University of Los Andes, Mérida, ZP-5101-A, Venezuela. janner@ula.ve
authors.forename: Janne
authors.initials: J
authors.lastname: Rojas
authors.forename: Shirley
authors.initials: S
authors.lastname: Baldovino
authors.forename: Marietta
authors.initials: M
authors.lastname: Vizcaya
authors.forename: Luis B
authors.initials: LB
authors.lastname: Rojas
authors.forename: Antonio
authors.initials: A
authors.lastname: Morales
mesh_terms: D028481:Euphorbia / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D014687:Venezuela
chemical_list: D009822:Oils, Volatile