US4780149A
Expired / Lapsed
US
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Method of making and applying beta-limit dextrin containing starch hydrolysates
Assignee: Cooperative Avebe UA
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Filing: 1987-04-10
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Granted: 1988-10-25
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Expires: 2007-04-10
Abstract
Abstract A method of making beta-limit dextrin containing starch products is disclosed. The method comprises first treating fully or partially gelatinized starch with beta-amylase until a DE of 5-30 is reached, thereafter completely gelatinizing the resulting product as far as necessary and treating the resulting solution with alpha-amylase for a short period of time so that, as a result of the treatment with alpha-amylase, the DE of the starch hydrolysate is increased by no more than 3 units.
Inventors
- 👤 Frederik S. Kaper
- 👤 Jan Aten
- 👤 Meindert A. Reinders
- 👤 Pieter Dijkstra
- 👤 Adolf J. Suvee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:58
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/34; A23G3/36; A23G3/42; C; C12; C12P; C12P19/00; C12P19/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
A method of making beta-limit dextrin containing starch hydrolysate, characterized by first treating gelatinized starch with beta-amylase until a dextrose equivalent of 5-30 is reached and treating the resulting beta-amylase treated product with alpha-amylase, after deactivating said beta-amylase, until the resulting dextrose equivalent of the starch hydrolysate is increased by no more than 3 units.
Claim 2
Independent Claim
55 words
A method of making beta-limit dextrin containing starch hydrolysate, characterized by first treating gelatinized starch with beta-amylase until a dextrose equivalent of 5-30 is reached and treating the resulting beta-amylase treated product with alpha-amylase, after deactivating said beta-amylase, until the resulting dextrose equivalent of the starch hydrolysate is increased by no more than 3 units.
Claim 3
Dependent Claim
20 words
A method as claimed in claim 1, further characterized by drying the starch hydrolysate recovered from the alpha-amylase treatment step.
Claim 4
Dependent Claim
38 words
A method as claimed in claim 1, further characterized in that, after the treatment with said alpha-amylase, the temperature of the starch hydrolysate is decreased until a separable amylose-rich precipitate is formed, and said precipitate is subsequently separated.
References Cited (Backward Citations)
US3804715A
Cited
US3998696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-25 | 1992-04-25 | 1992-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-25 | 1996-04-25 | 1996-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-25 | 2000-04-25 | 2000-10-25 | $7700.00 | Window Closed / Lapsed |