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Larvicidal activity of the essential oil from Lippia sidoides cham. against Aedes aegypti linn
Carvalho, Ana Fontenele Urano; Melo, Vânia Maria Maciel; Craveiro, Afrânio Aragão; Machado, Maria Iracema Lacerda; Bantim, Márcia Braga; Rabelo, Emanuelle Fontenele.
  • Carvalho, Ana Fontenele Urano; Universidade Federal do Ceará. Departamento de Biologia. Fortaleza. BR
  • Melo, Vânia Maria Maciel; Universidade Federal do Ceará. Departamento de Biologia. Fortaleza. BR
  • Craveiro, Afrânio Aragão; Universidade Federal do Ceará. Parque de Desenvolvimento Tecnológico. Fortaleza. BR
  • Machado, Maria Iracema Lacerda; Universidade Federal do Ceará. Parque de Desenvolvimento Tecnológico. Fortaleza. BR
  • Bantim, Márcia Braga; Universidade Federal do Ceará. Departamento de Biologia. Fortaleza. BR
  • Rabelo, Emanuelle Fontenele; Universidade Federal do Ceará. Departamento de Biologia. Fortaleza. BR
Mem. Inst. Oswaldo Cruz ; 98(4): 569-571, June 2003. ilus, tab
Article in English | LILACS | ID: lil-344257
RESUMO
The aim of this work was to study the larvicidal activity of Lippia sidoides essential oil against Aedes aegypti larvae. The essential oil and its hydrolate (saturated solution of essential oil in water) were obtained by vapor extraction and their chemical composition determined by GL-chromatography coupled to mass spectroscopy. Bioassays were run with the essential oil, pure and diluted hydrolate and with their main constituents thymol and carvacrol. The results obtained showed that L. sidoides essential oil and its hydrolate have larvicidal action against the mosquito A. aegypti, causing an almost instantaneous mortality. Thymol, an alkylated phenol derivative and one of the major components of L. sidoides essential oil, was identified as the active principle responsible for the larvicidal action, causing 100 percent larval mortality at the lowest tested concentration of 0.017 percent (w/v). These results suggest that the essential oil of L. sidoides is promising as larvicide against A. aegypti and could be useful in the search of newer, more selective, and biodegradable larvicidal natural compounds to be used in official combat programs and at home
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Plant Oils / Oils, Volatile / Aedes Limits: Animals Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2003 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal do Ceará/BR

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Full text: Available Index: LILACS (Americas) Main subject: Plant Oils / Oils, Volatile / Aedes Limits: Animals Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2003 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal do Ceará/BR