Avaliação das variáveis analíticas do método de Folin-Ciocalteu para determinação do teor de taninos totais utilizando como modelo o extrato aquoso de folhas de psidium guajava L. Evaluation of analytical variables of the Folin-Ciocalteu method for the quantitation of the total tannins content using a Psidium guajava L. leaves aqueous extract as a model
<abstract language="eng">The main analytical variables of a modified Folin-Ciocalteu method were studied by UV-Vis and gradient HPLC-PDA methods, using purified (PC) and technical grade (TGC) casein. Rutin and an aqueous extract of Psidium guajava L. leaves were used as models. The b...
Main Authors: | Simone Gasparin Verza, Maria T. Kreinecker, Valquíria Reis, Amélia T. Henriques, George González Ortega |
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Format: | Article |
Language: | English |
Published: |
Sociedade Brasileira de Química
2007-08-01
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Series: | Química Nova |
Subjects: | |
Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000400011 |
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