CARACTERIZAÇÃO QUÍMICA E AVALIAÇÃO DA ATIVIDADE LARVICIDA FRENTE AO Aedes aegypt do ÓLEO ESSENCIAL DA ESPÉCIE Citrus sinensis L. Osbeck (LARANJA DOCE)

Detalhes bibliográficos
Ano de defesa: 2013
Autor(a) principal: Assunção, Gilson Vitorino de
Orientador(a): MOUCHREK FILHO, Victor Elias lattes
Banca de defesa: Silva, Gilmar Silvério da lattes, Rojas, Mariano Oscar Anibal Ibanez lattes
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal do Maranhão
Programa de Pós-Graduação: PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA/CCET
Departamento: QUIMICA
País: BR
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://tedebc.ufma.br:8080/jspui/handle/tede/954
Resumo: Studies are conducted to find substances of vegetable origin, such as alternative chemical control to combat the dengue vector, once there is no validated vaccine for that. In this paper, from the extraction and analytical study of the essential oil of the fresh peel of Citrus sinensis L.Osbeck was possible to analyze the larvicidal effect of the oil against third stage larvae of Aedes aegypti (Linnaeus, 1762). The oil was extracted quantitatively by steam distillation process using Clevenger type apparatus. The physico-chemical properties of essential oil were determined (density, refractive index, solubility, color and appearance). The oil was characterized analytically by infrared (FTIR) and gas chromatography-mass spectrometry (GC-MS),thus identifying its major compound. LC50 from the oil was calculated from the Reed-Muench method (1938) and Pizzi (1950), respectively. The yield of oil was 2.47% m/m.Through spectroscopic techniques used,it was possible to identify 15 compounds, justifying presence of d-limonene as a major constituent. The essential oil exhibited LC50 of 99.014 (± 2.098) μg.mL-1 and the standard d-Limonene 126.037 (± 2.092) μg.mL-1. The results indicate that the essential oil Citrus sinensis L. Osbeck comprises substances with larvicidal effect against mosquito Aedes aegypti.