US4183969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foodstuffs containing crosslinked starches using STMP
Assignee: Ingredion Inc
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Filing: 1978-03-20
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Granted: 1980-01-15
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Expires: 1998-03-20
Abstract
Abstract The invention discloses a dual derivatizing process for the preparation of cold water swelling starches and foodstuffs thickened therewith. The starch base is first subjected to a primary crosslinking reaction using sodium trimetaphosphate (STMP) according to conventional techniques, then reslurried, treated with additional STMP and drum dried to effect a secondary cross-linking reaction in situ.
Inventors
- 👤 Roger W. Rubens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:30
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/003; A; A23; A23L; A23L29/00; A23L29/20; A23L29/206; A23L29/212; A23L29/219
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
138 words
A foodstuff comprising a foodstuff and, as a thickening agent therefor, a cold water swelling starch characterized by its resistance to Brabender viscosity breakdown on heating from 30° to 95° C. prepared from a dual derivatizing process comprising the steps of: a. reacting a granular starch base in a primary crosslinking step with sodium trimetaphosphate in an aqueous slurry at a pH of 10-12 and a temperature sufficiently low to maintain the starch in an unswollen granular state; b. neutralizing the slurry to a pH of 5-6.5; c. recovering the primary crosslinked granular starch; d. reslurrying the resultant starch in water at a pH of at least 7.5 and adding thereto additional sodium trimetaphosphate; e. drum drying the resultant slurry to effect a secondary crosslinking reaction in situ; and f. recovering the dried cold water swelling starch product.
Claim 2
Dependent Claim
138 words
A foodstuff comprising a foodstuff and, as a thickening agent therefor, a cold water swelling starch characterized by its resistance to Brabender viscosity breakdown on heating from 30° to 95° C. prepared from a dual derivatizing process comprising the steps of: a. reacting a granular starch base in a primary crosslinking step with sodium trimetaphosphate in an aqueous slurry at a pH of 10-12 and a temperature sufficiently low to maintain the starch in an unswollen granular state; b. neutralizing the slurry to a pH of 5-6.5; c. recovering the primary crosslinked granular starch; d. reslurrying the resultant starch in water at a pH of at least 7.5 and adding thereto additional sodium trimetaphosphate; e. drum drying the resultant slurry to effect a secondary crosslinking reaction in situ; and f. recovering the dried cold water swelling starch product.
Claim 3
Dependent Claim
19 words
The foodstuff of claim 1 wherein the foodstuff is a fruit pie filling and the starch base is amioca.
Claim 4
Dependent Claim
18 words
The foodstuff of claim 1 wherein the foodstuff is tomato sauce and the starch base is corn starch.
References Cited (Backward Citations)
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Cited
US2884413A
Cited
US2852393A
Cited
US3021222A
Cited
US3899602A
Cited
US3904601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |