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Química Nova

On-line version ISSN 1678-7064

Abstract

PIMENTEL, Flávio A. et al. The influence of drying temperature on the yield and the chemical composition of the essential oil from Tanaecium nocturnum (Barb. Rodr.) Bur. & K. Shum. Quím. Nova [online]. 2008, vol.31, n.3, pp. 523-526. ISSN 1678-7064.  http://dx.doi.org/10.1590/S0100-40422008000300011.

The yields and chemical compositions of the essential oils obtained by steam distillation of the fresh and dried (30 and 40 ºC) leaves, stems and roots of Tanaecium nocturnum are reported. The identification and quantification of the volatile constituents were accomplished by GC/MS and GC/FID, respectively. The essential oils obtained from the various parts of the plant were constituted mainly of benzaldehyde. Large losses and variations in the quantities of the components during the drying process were observed. The presence of mandelonitrile in higher concentration in the stem and roots indicates that this species produces cyanogenic glycosides.

Keywords : Tanaecium nocturnum; benzaldehyde; chemical characterization.

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