Produção Nacional
Revisado por pares
Seasonal variation in the essential oil of Pilocarpus microphyllus Stapf.
2003; Brazilian Academy of Sciences; Volume: 75; Issue: 1 Linguagem: Inglês
10.1590/s0001-37652003000100004
ISSN1678-2690
AutoresFrancisca S.N. Taveira, Eloísa Helena de Aguiar Andrade, Waterloo Napoleão de Lima, José Guilherme S. Maia,
Tópico(s)Phytochemistry Medicinal Plant Applications
ResumoThe 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.
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