Abstract:In this study, were evaluated the Ca, Cu, Fe, K, Mg, Mn, Na e Zn concentrations in leaf of teas of Cecropia from different seasons. The samples were digested by microwave and analyzed by inductively coupled plasma optical emission spectrometry. The results showed that there was a reduced metal transfer from the dry matter to the teas, and mineral levels did not exceed the maximum tolerable. Chemometric studies showed that the species Cecropia obtusa e Cecropia palmata obtained during the rainy season has the highest similarity, in relation to levels of nutrients Ca, Cu and Mn.Keywords: Cecropia; tea; mineral composition; seasonal period.
ResumoNeste estudo foram avaliadas as concentrações dos metais Ca, Cu, Fe, K, Mg, Mn, Na e Zn em folhas e chás de Cecropia, coletadas no horto de plantas medicinais da Embrapa Amazônia Oriental, em diferentes períodos sazonais. As amostras foram digeridas por micro-ondas e analisadas por espectrometria de emissão ótica com plasma indutivamente acoplado. Os resultados revelaram que ocorreu uma reduzida transferência dos metais da matéria seca para os chás, e que os teores de minerais não excederam os limites máximos toleráveis. Estudos quimiométricos mostraram que as espécies Cecropia obtusa e Cecropia palmata obtidas no período chuvoso apresentaram maior similaridade, em relação aos teores dos nutrientes Ca, Cu e Mn.
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