Repellent activity of the essential oil from Laurelia sempervirens (Ruiz & Pay.) Tul. (Monimiaceae) on Triatoma infestans (Klug) (Reduviidae)
Author
dc.contributor.author
Mojica, Marycruz
Author
dc.contributor.author
Alzogaray, Raúl Adolfo
Author
dc.contributor.author
Mengoni, Sofía Laura
Author
dc.contributor.author
Noel Reynoso, Mercedes
Author
dc.contributor.author
Pinto, Carlos Fernando
Author
dc.contributor.author
Niemeyer Marich, Hermann
Author
dc.contributor.author
Echeverría, Javier
Admission date
dc.date.accessioned
2021-05-24T22:57:08Z
Available date
dc.date.available
2021-05-24T22:57:08Z
Publication date
dc.date.issued
2020
Cita de ítem
dc.identifier.citation
Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas 19 (4): 387 - 394 (2020)
es_ES
Identifier
dc.identifier.other
10.37360/BLACPMA.20.19.4.26
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/179770
Abstract
dc.description.abstract
Triatoma infestans (Klug) is the principal vector of Chagas disease in Bolivia and neighboring countries. The objective of this study was to determine the chemical composition of the EO of the Chilean laurel, Laurelia sempervirens (Ruiz & Pay.) Tul. (Monimiaceae) and to evaluate its repellent effect on fifth-instar nymphs of T. infestans. The EO from L. sempervirens was obtained by hydrodistillation and analyzed by gas chromatography coupled to mass spectrometry (GC-MS). Their main components were cis-isosafrole (89.8%), beta-terpinene (3.9%), trans-ocimene (2.7%) and methyleugenol (2.2%). Repellency was evaluated on a circle of filter paper divided into two equal zones which were impregnated with test substances [EO or N,N-diethyl-3-methylbenzamide (DEET) as positive control] and acetone as blank control, respectively. Several concentrations of test substances between 4.125 and 132 mu g/cm(2) were tested. The EO from L. sempervirens produced significant repellency at concentrations equal or above 66.0 mu g/cm(2), while DEET repelled starting at 16.5 mu g/cm(2). Future works will be oriented to the study of repellent properties of cis-isosafrole alone and mixed with beta-terpinene, trans-ocimene and methyleugenol on T. infestans.
es_ES
Patrocinador
dc.description.sponsorship
BOL-01 project of the International Science Programme at Uppsala University
BOL-01 program of the International Science Program at Uppsala University
CONICYT PAI/ACADEMIA
79160109