Perú
Se desarrollo y valido la cuantificacion de taninos del extracto hidroalcoholico, mediante espectrofotometria ultravioleta-visible, donde el metodo resulto ser selectivo, lineal, preciso (repetible y reproducible) y exacto; se obtuvo como resultado para compuestos fenolicos totales: 13,5158 0,1825 g de acido tanico/100 g de corteza; para taninos: 11,8590 0,5453 g de acido tanico/ 100 g de corteza; y para taninos condensados: 1,62368 0,0784 g de acido tanico/ 100 g de corteza.
It was developed and validated the quantification of tannins of the hydroalcoholic extract, by means of ultraviolet-visible spectrophotometry, where the method turned out to be selective, lineal, precise (repeat and reproduce) and exact; they were obtained as a result for compound total phenolic: 13,5158 0,1825 g of tannic acid/ 100 g of bark; for tannins: 11,8590 0,5453 g of tannic acid/ 100 g of bark, and for condensed tannins: 1,62368 0,0784 g of tannic acid/ 100 g of bark.
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