US3639259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzymatic treatment of gelled proteinaceous film material
Assignee: NCR Voyix Corp
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Filing: 1969-04-09
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Granted: 1972-02-01
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Expires: 1989-04-09
Abstract
Abstract A method is disclosed for treating proteinaceous films or preformed capsule walls with proteolytic enzymes to afford coldwater solubility. According to the process of this invention, preformed films or capsule walls are partially degraded enzymatically, in an aqueous vehicle, to such a degree that the degraded proteinaceous material is rendered soluble in cold water at some desired or required temperature of use. Such treatment of already made films or capsule walls is contrasted with enzymatic treatment of proteins before manufacture of the films or capsule walls themselves.
Inventors
- 👤 Joseph A Scarpelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:31
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/20; B01J13/06; B01J13/10; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
A process for treating gelled gelatin material in a preformed capsule wall to render the gelatin soluble in water at a lower dissolving temperature than before the treatment including the steps of: a. immersing capsules having walls to be treated in an aqueous solution of protease, said aqueous solution having a temperature below the diSsolving temperature; b. maintaining the immersion below the dissolving temperature for a time adequate to permit hydrolysis of the gelatin to the degree desired for solution at the dissolving temperature; and c. inactivating the protease such that the enzyme can no longer react with the gelled gelatin material.
Claim 2
Dependent Claim
91 words
A process for treating gelled gelatin material in a preformed capsule wall to render the gelatin water soluble at a lower dissolving temperature than before the treatment including the steps of: a. immersing capsules having walls to be treated in an aqueous solution of protease, said aqueous solution having a temperature below the dissolving temperature; b. maintaining the immersion below the dissolving temperature to partially hydrolyze the gelatin by reaction with the protease; and c. inactivating the protease such that the enzyme can no longer react with the gelled gelatin material.
Claim 3
Dependent Claim
11 words
The process of claim 3 wherein the protease is an endopeptidase.
Claim 4
Dependent Claim
11 words
The process of claim 3 wherein the protease is a proteinase.
Claim 5
Dependent Claim
14 words
The process of claim 3 wherein the dissolving temperature is below about 30* C.
Claim 6
Dependent Claim
19 words
The process of claim 3 wherein the immersion is maintained for from about 15 minutes to about 4 hours.
Claim 7
Dependent Claim
23 words
The process of claim 3 wherein the concentration of protease in aqueous solution is from about 0.01 to about 1.0 percent, by weight.
Claim 8
Dependent Claim
21 words
The process of claim 3 wherein the pH of the aqueous solution of protease is from about 3 to about 10.
Claim 9
Dependent Claim
26 words
The process of claim 3 wherein the protease is at least one taken from the group consisting of pepsin, trypsin, ficin, bromelain, papain, rennin and chymotrypsins.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |