Chemical composition and larvicidal activity of the essential oils from Eupatorium betonicaeforme (D.C.) Baker (Asteraceae).
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.
Albuquerque
Maria Rose Jane R
MR
Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, 12.200, Fortaleza-Ce 60.021-970, Brazil.
Silveira
Edilberto R
ER
De A Uchôa
Daniel Esdras
DE
Lemos
Telma Leda G
TL
Souza
Elnatan B
EB
Santiago
Gilvandete Maria P
GM
Pessoa
Otilia Deusdênia L
OD
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
D007306:Insecticides; D009822:Oils, Volatile