US4034121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foods with microcrystalline chitin
Assignee: VAN CAMP MARINE Inc 4510 EXECUTIVE DRIVE SUITE 300 SAN DIEGO CA 92121 A CORP OF
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Filing: 1972-11-13
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Granted: 1977-07-05
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Expires: 1992-11-13
Abstract
Abstract Microcrystalline chitin is prepared by subjecting chitin to controlled acid hydrolysis and high shear while suspended in an aqueous medium.
Inventors
- 👤 Howard J. Dunn
- 👤 M. Paul Farr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:42
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0024; C08B37/0027; C08B37/003; A; A23; A23L; A23L29/00; A23L29/20; A23L29/275
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
72 words
A food composition having improved thickening properties, said product comprising food material and a uniform, stable aqueous dispersion of microcrystalline chitin, characterized by a multiplicity of randomly spaced ruptured glycosidic bonds, particle sizes substantially invisible at a microscopic magnification of 1600X and having a microcrystalline chitin particle concentration of from 0.5% to 25% by weight of the dispersion whereby the food product has an improved viscosity and an improved resistance against syneresis.
Claim 2
Dependent Claim
72 words
A food composition having improved thickening properties, said product comprising food material and a uniform, stable aqueous dispersion of microcrystalline chitin, characterized by a multiplicity of randomly spaced ruptured glycosidic bonds, particle sizes substantially invisible at a microscopic magnification of 1600X and having a microcrystalline chitin particle concentration of from 0.5% to 25% by weight of the dispersion whereby the food product has an improved viscosity and an improved resistance against syneresis.
Claim 3
Dependent Claim
17 words
The food composition of claim 1 wherein the concentration of microcrystalline chitin is from 4.5 to 5%.
Claim 4
Dependent Claim
18 words
The composition of claim 1 wherein the food material is of a type subjected to high temperature processing.
Claim 5
Dependent Claim
19 words
The composition of claim 1 wherein the food material is of a type subjected to repeated freeze thaw cycles.
Claim 6
Dependent Claim
16 words
The composition of claim 1 wherein the food material is of a type subjected to refrigeration.
Claim 7
Dependent Claim
19 words
The composition of claim 1 wherein the food material is of a type subjected to extended room temperature storage.
Claim 8
Dependent Claim
20 words
The composition of claim 1 wherein the food material contains an emulsifier and the microcrystalline chitin acts as a stabilizer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |