Process for extracting glycoside using an aqueous two-phase system

An aqueous two-phase system for extracting glycosides from a herb includes the extractive solution, about 5 wt %-30 wt % of salt, about 5 wt %-30 wt % of polyol and selectively about 0 wt %-30 wt % of alcohols. The salt can be dihydrogen phosphate, hydrogen phosphate and phosphate or a mixture there...

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Bibliographic Details
Main Authors Lu, Chu-Hsun, Pan, I-Hong, Chiu, Hsi-Ho
Format Patent
LanguageEnglish
Published 16.05.2002
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Summary:An aqueous two-phase system for extracting glycosides from a herb includes the extractive solution, about 5 wt %-30 wt % of salt, about 5 wt %-30 wt % of polyol and selectively about 0 wt %-30 wt % of alcohols. The salt can be dihydrogen phosphate, hydrogen phosphate and phosphate or a mixture thereof, and it also can be sulfates, chlorides, oxalates, or acetates. In addition, a process for extracting glycosides using an aqueous two-phase system is disclosed. The procedures includes preparation of extractive solution, concentration, phase separation, drying, washing with solvent, cooling, filtration and drying of the final products.