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US 4,622,233 AGranted
Preparation and use of a highly purified polydextrose
AssigneePfizer Inc.
InventorAnibal Torres
Life of this patent
Estimating the term…
Abstract
Methods for preparing purified, decolorized polydextrose having a lower caloric value, higher pH and less color than presently available commercial material, and the use of said improved product in edible foodstuffs and beverages.
Claims5
A method for reducing the color, glucose content and anhydroglucose content of polydextrose Type A which comprises the steps of (1) contacting a 60-70% (W/W) aqueous solution of polydextrose Type A with a food approved bleaching agent at a temperature of 25.degree.-90.degree. C. and a pH of about 2.5 to about 9;
- (2) adjusting the pH of the product of step (1), if above 7, to about 6;
- (3) adding one or more of the solvents selected from the group consisting of methanol, ethanol and ethyl acetate such that said solvent comprises 50-80% (W/W) of the mixture;
- (4) filtering the final product, and if desired, drying.
Dependencies are inferred from the claim text.