Influência da temperatura de secagem sobre o rendimento e a composição química do óleo essencial de Tanaecium nocturnum (barb. Rodr.) bur. & K. Shum

Autor: Pimentel, Flávio A., Cardoso, Maria das Graças, Zacaroni, Lidiany M., Andrade, Milene Aparecida, Guimarães, Luiz Gustavo de Lima, Salgado, Ana Paula S. P., Freire, Juliana Mesquita, Muniz, Fabiana R., Morais, Augusto Ramalho de, Nelson, David Lee
Jazyk: portugalština
Rok vydání: 2008
Předmět:
Zdroj: Química Nova, Volume: 31, Issue: 3, Pages: 523-526, Published: 2008
Popis: 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.
Databáze: OpenAIRE