US5051271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch-derived, food-grade, insoluble bulking agent
Assignee: Bank of Montreal
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Filing: 1989-11-22
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Granted: 1991-09-24
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Expires: 2009-11-22
Abstract
Abstract A method for preparing a food grade, insoluble bulking agent from starch is disclosed. The method involves a retrogradation process followed by enzymatic hydrolysis to form a modified starch product which can be used as a filler or as a bulking or texturizing agent in low-fat food formulations.
Inventors
- 👤 Radha Iyengar
- 👤 Aleksey Zaks
- 👤 Akiva Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:52
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/34; A23G3/346; A21; A21D; A21D2/00; A21D2/08; A21D2/14; A21D2/18; A23G3/343; A23G9/00; A23G9/52; A23L; A23L29/00; A23L29/30; A23L29/35; A23L33/00; A23L33/20; A23L33/21; C; C12; C12Y; C12Y302/00; C12Y302/01; C12Y302/01001; C12Y302/01003; C12Y302/01041; C12Y302/01068; A23G2200/00; A23G2200/06; Y; Y10; Y10S; Y10S426/00; Y10S426/804
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
21 words
A food product containing a food-grade water insoluble material comprising water-soluble crystalline starch microparticles which are substantially free of amorphous regions.
Claim 2
Dependent Claim
21 words
A food product containing a food-grade water insoluble material comprising water-soluble crystalline starch microparticles which are substantially free of amorphous regions.
Claim 3
Dependent Claim
35 words
A reduced calorie food product wherein at least a portion of the sugar or flour has been replaced by a food-grade water-insoluble material comprising water-insoluble crystalline starch microparticles which are substantially free of amorphous regions.
Claim 4
Dependent Claim
35 words
A reduced calorie food product wherein at least a portion of the sugar or flour has been replaced by a food-grade water-insoluble material comprising water-insoluble crystalline starch microparticles which are substantially free of amorphous regions.
Claim 5
Dependent Claim
31 words
A reduced-fat product wherein at least a portion of the fat has been replaced by a food-grade water-insoluble material comprising water-insoluble crystalline starch microparticles which are substantially free of amorphous regions.
Claim 6
Dependent Claim
31 words
A reduced-fat product wherein at least a portion of the fat has been replaced by a food-grade water-insoluble material comprising water-insoluble crystalline starch microparticles which are substantially free of amorphous regions.
Claim 7
Dependent Claim
77 words
A food produce containing a food-grade water-insoluble crystalline starch microparticles produced by a method comprising the steps of: a. incubating a starch dispersion under conditions sufficient for crystallization of at least a portion of the starch to occur; b. incubating a suspension of the crystalline starch formed in (a) with a catalyst under conditions sufficient for hydrolysis of the amorphous regions to occur; and c. washing the starch with water to remove the catalyst and water-soluble by-products.
Claim 8
Dependent Claim
77 words
A food produce containing a food-grade water-insoluble crystalline starch microparticles produced by a method comprising the steps of: a. incubating a starch dispersion under conditions sufficient for crystallization of at least a portion of the starch to occur; b. incubating a suspension of the crystalline starch formed in (a) with a catalyst under conditions sufficient for hydrolysis of the amorphous regions to occur; and c. washing the starch with water to remove the catalyst and water-soluble by-products.
Claim 9
Dependent Claim
29 words
The food product of claim 4 wherein the starch is selected from the group consisting of: amylomaize starch, corn starch, wheat starch, oat starch and potato starch and amylose.
Claim 10
Dependent Claim
18 words
The food product of claim 4 wherein the catalyst of step (b) is one or more glycosidase enzymes.
Claim 11
Dependent Claim
22 words
The food product of claim 6 wherein the glycosidase is selected from the group consisting of: alpha amylase, pullulanase, isoamylase and amyloglycosidase.
Claim 12
Dependent Claim
15 words
The food product of claim 4 wherein the catalyst of step (b) is an acid.
Claim 13
Dependent Claim
23 words
The food product of claim 8 wherein the acid is selected from the group consisting of: HCl, H 2 SO 4 and TFA.
Claim 14
Dependent Claim
17 words
The food product of claim 4 comprising cookies, frosting, brownies, margarine, fudge, chocolate syrup or frozen desserts.
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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) | 1994-09-23 | 1995-03-25 | 1995-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-23 | 1999-03-25 | 1999-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-23 | 2003-03-25 | 2003-09-24 | $7700.00 | Window Closed / Lapsed |