Evaluation of larvicidal activity of the essential oils of plants species from Brazil against Aedes aegypti (Diptera: Culicidae)

Tipo de material: Texto

TextoSeries African Journal of Biotechnology, 10(55), p.11716-1172021, 2011Trabajos contenidos:

Lima, M. A
Oliveira, F. D
Gomes, G. A
Lavor, P. L
Santiago, G. M
Nagao-Dias, A. T
Carvalho, M. D

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Resumen: Essential oils obtained from the leaves of Myrcia ovata Cambess., Psidium guajava L., Spondias purpurea L. and Plectranthus amboinicus (Lour.) Spreng. were gotten by hydrodistillation, analyzed by GC-MS and GC, and tested against third-instar Aedes aegypti larvae. The essential oils exhibited significant larvicidal activity with LC50 values ranging from 24.7 to 192.1 µg/ml. Larvicidal activities of 1,8-cineole and carvacrol, the major compounds of the essential oil from P. guajava and P. amboinicus were also evaluated and their LC50 values were 47.9 ± 0.3 and 58.9 ± 0.4 µg/ml, respectively. The results of this study showed that these essential oils and their major compounds may be potent source of natural larvicides.

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Artículo

Essential oils obtained from the leaves of Myrcia ovata Cambess., Psidium guajava L., Spondias purpurea L. and Plectranthus amboinicus (Lour.) Spreng. were gotten by hydrodistillation, analyzed by GC-MS and GC, and tested against third-instar Aedes aegypti larvae. The essential oils exhibited significant larvicidal activity with LC50 values ranging from 24.7 to 192.1 µg/ml. Larvicidal activities of 1,8-cineole and carvacrol, the major compounds of the essential oil from P. guajava and P. amboinicus were also evaluated and their LC50 values were 47.9 ± 0.3 and 58.9 ± 0.4 µg/ml, respectively. The results of this study showed that these essential oils and their major compounds may be potent source of natural larvicides.

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