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AssigneeHer Majesty the Queen in right of Canada, as represented by the Minister of Agriculture and Agri-Food Canada
InventorsALISTER D. MUIR, DAVID PATON, KRISTA BALLANTYNE, ANDREW A. AUBIN
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A process for commercial extraction of saponins from quinoa, and optionally for the formation of corresponding sapogenins. The saponin extraction process comprises contacting a saponin-containing part of a quinoa plant with an aqueous alcohol solution containing an alcohol selected from the group consisting of methanol and ethanol to form a saponin-containing solution and an extracted solid residue, removing the alcohol from the saponin-containing solution to leave a saponin-containing aqueous solution, and evaporating water from the saponin-containing aqueous solution to produce a saponin-containing product. The conversion to sapogenins involves obtaining a solution of saponins in an aqueous alcohol, adding a strong acid to the solution to hydrolyze the saponins to form corresponding sapogenins that precipitates out of the solution as a precipitate, recovering the precipitate, and decolorizing the precipitate by forming a slurry of the precipitate with a solution of an aqueous base to form a decolorized sapogenin product.
A process for extraction of saponins from quinoa, comprising:
A process of purifying a mixture of saponins extracted from a saponin-containing part of a quinoa plant, comprising:
A process of producing sapogenins from corresponding saponins obtained by extraction from a quinoa plant, comprising:
A method of monitoring saponin and/or sapogenin contents of saponin-containing and/or sapogenin-containing products, comprising:
Process for the commercial extraction and purification of saponins from quinoa comprising extraction of quinoa with mixed aqueous alcohols at a liquid to solids ratio of at least 10:1 at temperatures greater than ambient and less than the boiling point of the solvent, separation of liquids from solids, removal of alcohol, reduction of the extract to a saponin rich powder, concentration and fractionation of quinoa saponins comprising concentration and purification of saponins by ultrafiltration over a low molecular weight membrane, and fractionation into individual saponins by sequential elution from a solid phase extraction cartridge by aqueous alcohol.
Process for the conversion of quinoa saponins to produce their corresponding sapogenins comprising hydrolysis of the aqueous alcoholic extract of quinoa with a strong acid, recovery of the resulting precipitated sapogenins, decolorization of the concentrated crude sapogenin mixture by slurrying with aqueous base and fractionation into individual sapogenins by sequential elution from a solid phase extraction cartridge by aqueous alcohol.
Dependencies are inferred from the claim text.