US4622233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation and use of a highly purified polydextrose
Assignee: Danisco Finland Oy
•
Filing: 1984-12-06
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Granted: 1986-11-11
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Expires: 2004-12-06
Abstract
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.
Inventors
- 👤 Anibal Torres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:04
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0009; A; A23; A23C; A23C11/00; A23C11/02; A23C11/08; A23C9/00; A23C9/152; A23C9/154; A23C9/1544; A23G; A23G3/00; A23G3/34; A23G3/346; A23L; A23L27/00; A23L27/30; A23L27/31; A23L27/32; A23G2200/00; A23G2200/06; Y; Y10; Y10S; Y10S426/00; Y10S426/804
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
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°-90° 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.
Claim 2
Independent Claim
106 words
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°-90° 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.
Claim 3
Dependent Claim
45 words
The method of claim 1, wherein the food approved bleaching agent is selected from the group consisting of hydrogen peroxide, benzoyl peroxide and sodium chlorite, a pH of about 9 and adjusting the pH to about 6 with a 20% (w/w) aqueous citric acid solution.
Claim 4
Dependent Claim
19 words
The method of claim 2, wherein the solvent is ethanol and the food approved bleaching agent is hydrogen peroxide.
Claim 5
Dependent Claim
78 words
A method for preparing a tabletop sweetener which comprises the steps of (1) blending a 70-93% (W/W) water wet cake of polydextrose prepared according to the method of claim 1, with a 0.05-5% (W/W) aqueous suspension or solution of an artificial sweetener in a ratio corresponding to the isosweetness of sucrose; (2) heating the homogeneous solution or syrup to dryness at 50°-90° C. under vacuum, and (3) milling the resulting solid to a size of about 420-840 microns.
Claim 6
Dependent Claim
36 words
The method of claim 4, wherein the artificial sweetener is one or more selected from the group consisting of L-aspartyl-L-phenylalanine methyl ester, 3-(L-aspartyl-D-alanamido)-2,2,4,4-tetramethylthietane, saccharin and base salts thereof, potassium 6-methyl-1,2,3-oxathiazin-4(3H)-one-2,2-dioxide and cyclamate and base salts thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |