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quantification of saponins in extractive solution of mate leaves (ilex paraguariensis a. st. hil.).mate (ilex paraguariensis a. st. hil.) is a raw material used to prepare popular beverages in south america, whose healthy effects have been pointed out. the leaves and stems of mate contain a complex assemblage of saponins, mainly ursolic acid and oleanolic acid glycosides, and their quantification presents difficulties such as weak cromophorous sites and interference of other compounds. on the other hand, the sugar moieties are a chief character that distinguishes them. we developed and valida ...201020170360
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