Seasonal variation in the essential oil of Pilocarpus microphyllus Stapf.

Anais da Academia Brasileira de Ciências

Francisca S. N. Taveira²  Eloisa H. A. Andrade¹  Waterloo N. Lima¹  JosÉ G. S. Maia¹ 

[1] ,Universidade Federal do Maranhão Departamento de Química São Luis MA ,Brazil

关键词: Pilocarpus microphyllus;    Rutaceae;    jaborandi;    essential oil composition;    2-tridecanone;    2-pentadecanone;    sesquiterpenes;    Pilocarpus microphyllus;    Rutaceae;    jaborandi;    composição do óleo essencial;    2-tridecanona;    2-pentadecanona;    sesquiterpenos;   

DOI  :  10.1590/S0001-37652003000100004

来源: SciELO

【 摘 要 】

The essential oils of the leaves and fine stems of Pilocarpus microphyllus, collected on iron mineralized soil of the Serra de Carajás, Southeast of Pará State, Brazil, during the rainy and dry seasons, were obtained by hydrodistillation and analyzed by GC-MS. The main identified compounds were 2-tridecanone, beta-caryophyllene, 2-pentadecanone, caryophyllene oxide and germacrene D. Their percentage contents varied with the season, the greater values having been detected mainly in the rainy season. For 2-tridecanone and beta-caryophyllene the higher values were observed in the fine stem oils for the former, and in the leaf oils for the latter. For 2-pentadecanone, caryophyllene oxide and germacrene D they were also in the leaf oils. In general, the leaf oils were very distinguishable from those of fine stem oils, even in the same specimen.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License