title: Chemical composition and larvicidal activity of the essential oils from Eupatorium betonicaeforme (D.C.) Baker (Asteraceae).
abstract: The volatile composition of the essential oils from leaves and roots of Eupatorium betonicaeforme (D.C.) Baker was analyzed by GC-MS. A total of 12 compounds were identified. beta-Caryophyllene (12.4-41.7%), alpha-humulene (11.7-14.6%), gamma-muurolene (10.4-19.0%), bicyclogermacrene (15.0-17.5%), 2,2-dimethyl-6-vinylchroman-4-one (10.3-25.5%), and 2-senecioyl-4-vinylphenol (8.5-41.0%) were the most prominent constituents. The former two compounds were isolated and characterized by spectroscopic data. The essential oils and the isolated compounds were tested against Aedes aegypti larvae survival. The results obtained show that the essential oil from roots and 2,2-dimethyl-6-vinylchroman-4-one (10.3-25.5%) could be considered as natural larvicidal agents.
authors.affiliation: Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, 12.200, Fortaleza-Ce 60.021-970, Brazil.
authors.forename: Maria Rose Jane R
authors.initials: MR
authors.lastname: Albuquerque
authors.forename: Edilberto R
authors.initials: ER
authors.lastname: Silveira
authors.forename: Daniel Esdras
authors.initials: DE
authors.lastname: De A Uchôa
authors.forename: Telma Leda G
authors.initials: TL
authors.lastname: Lemos
authors.forename: Elnatan B
authors.initials: EB
authors.lastname: Souza
authors.forename: Gilvandete Maria P
authors.initials: GM
authors.lastname: Santiago
authors.forename: Otilia Deusdênia L
authors.initials: OD
authors.lastname: Pessoa
mesh_terms: D000330:Aedes; D000818:Animals; D036602:Eupatorium / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D007306:Insecticides / Q000302:isolation & purification; D007814:Larva; D009822:Oils, Volatile / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry
chemical_list: D007306:Insecticides; D009822:Oils, Volatile