Determination of metals in medicinal plants highly consumed in Brazil

Autor: Alexandre Soares Leal, Guilherme Prado, Tatiana Cristina Bomfim Gomes, Fernanda Peixoto Sepe, Ilza Dalmázio
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Brazilian Journal of Pharmaceutical Sciences, Vol 49, Iss 3, Pp 599-607 (2013)
Druh dokumentu: article
ISSN: 2175-9790
1984-8250
DOI: 10.1590/S1984-82502013000300022
Popis: In this work, samples of the medicinal plants: Boldo (Peumus boldus), Castanha da Índia (Aesculus hippocastanum), Chá Verde (Camelia sinensis), Erva Cidreira (Melissa officinalis), Espinheira Santa (Maytenus ilicifolia), Guaraná (Paullinia cupana), Maracujá (Passiflora sp.), Mulungu (Erythrina velutina), Sene (Cassia angustifolia) and Valeriana (Valeriana officinalis) were evaluated BY using the Neutron Activation Analysis technique (NAA- k0) in order to determine the levels of metals and other chemical contaminants. The results showed the presence of non essential elements to the human body. The diversity of chemical impurities found even at low concentration levels, considering the potential for chronic toxicity of these elements, reinforces the need to improve the implementation of good practices by growers and traders, and the hypothesis of lack of quality control in plant products.
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