Chemical composition and larvicidal activity of the essential oils of Cordia leucomalloides and Cordia curassavica from the Northeast of Brazil

Journal of the Brazilian Chemical Society

Renata P. Santos²  Edson P. Nunes¹  Ronaldo F. Nascimento¹  Gilvandete Maria P. Santiago¹  Gustavo Henrique A. Menezes¹  Edilberto R. Silveira²  Otília Deusdênia L. Pessoa² 

[1] ,Universidade Federal do Ceará Centro de Ciências Departamento de Química Orgânica e InorgânicaFortaleza CE ,Brazil

关键词: Cordia leucomalloides;    Cordia curassavica;    essential oil;    larvicidal activity;    terpenoids;   

DOI  :  10.1590/S0103-50532006000500030

来源: SciELO

【 摘 要 】

The essential oils obtained from the leaves of Cordia leucomalloides and Cordia curassavica were obtained by hydrodistillation and their chemical compositions determined by a combination of GC-MS and GC-FID. Twenty-three components were tentatively identified in both oils representing 98.6 and 91.2% of the volatile content. The oil of C. leucomalloides was characterized by a large percentage of sesquiterpenes (90.6%), being delta-cadinene (17.4%), (E)-caryophyllene (15.7%), bicyclogermacrene (12.5%) and germacrene D (11.2%) the major ones. On the other hand, the oil of C. curassavica showed similar proportions of monoterpenes (47.3%) and sesquiterpenes (43.9%) among which a-pinene (20.5%), beta-pinene (13.1%), (E)-caryophyllene (12.4%) and bicyclogermacrene (13.8%) were the predominant compounds. The larvicidal potential of the two oils were evaluated against the third-instar of Aedes aegypti larvae. The results showed that both oils exhibited significant activity, particularly the oil of C. leucomalloides which was able to kill 98.7% of the larvae in the concentration of 100 ppm.

【 授权许可】

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