Autor(es): Lima, Michele A. A.; de Oliveira, Francisco Fabio M.; Gomes, Geovany A.; Lavor, Patricia L.; Santiago, Gilvandete M. P.; Nagao-Dias, Aparecida T.; Arriaga, Angela M. C.; Lemos, Telma L. G.; de Carvalho, Mario Geraldo

Resumo: 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 LC(50) values ranging from 24.7 to 192.1 mu g/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 LC(50) values were 47.9 +/- 0.3 and 58.9 +/- 0.4 mu g/ml, respectively. The results of this study showed that these essential oils and their major compounds may be potent source of natural larvicides.

Palavras-Chave: Myrcia ovata; Psidium guajava; Spondias purpurea; Plectranthus amboinicus; larvicidal activity; Aedes aegypti

Imprenta: African Journal of Biotechnology, v. 10, n. 55, p. 11716-11720, 2011

Descritores: Aedes aegypti - Larvicide ; Aedes aegypti - Public health

Data de publicação: 2011