Avaliação da labilidade de alumínio em infusões de erva-mate empregando voltametria adsortiva de redissolução catódica
| Autor: | Bruna Kauely de Campos, Jéssica Pacheco dos Prazeres, Yohandra Reyes Torres, Vanessa Egéa dos Anjos, Sueli Pércio Quináia |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 37, Iss 9, Pp 1479-1486 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1678-7064 0100-4042 |
| DOI: | 10.5935/0100-4042.20140226 |
| Popis: | Infusions of yerba mate obtained at different stages of industrialization were evaluated to determine the bioavailable fraction of Al. Adsorptive Cathodic Stripping Voltammetry using DASA (complexing agent) was applied to determine the labile fraction of Al at pH 5.0 and pH 8.0 for the total fraction of dissolved Al. The results indicate that on average 60% of Al is complexed with organic compounds, minimizing their bioavailability; however, the labile fraction exceeds by up to 4 times the maximum weekly intake recommended by the World Health Organization. |
| Databáze: | Directory of Open Access Journals |
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