US3966971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of protein from vegetable sources
Assignee: VARIED INVESTMENTS Inc
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Filing: 1975-01-02
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Granted: 1976-06-29
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Expires: 1995-01-02
Abstract
Abstract Vegetable protein source materials are dispersed in water at a pH in the range of 2 to 6 and an acid phytase is included therein. The acidic extract containing soluble protein is separated and dried to yield a solid protein of desirable character. A protease can also be used to improve the characteristics of the protein.
Inventors
- 👤 Alpha L. Morehouse
- 👤 Ronald C. Malzahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:38
CPC Classifications
A; A23; A23L; A23L2/00; A23L2/52; A23L2/66; A23J; A23J1/00; A23J1/14; A23J1/148; A23J3/00; A23J3/30; A23J3/32; A23J3/34; A23J3/346
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
68 words
A process of obtaining protein from a vegetable protein source material which comprises washing a vegetable protein source material with water maintained at a pH of minimum protein solubility, subjecting the washed vegetable protein source material to digestion in water at a pH of from about 2 to 6 in the presence of acid phytase, and separating a liquid extract containing soluble protein from the insoluble digestion residue.
Claim 2
Dependent Claim
68 words
A process of obtaining protein from a vegetable protein source material which comprises washing a vegetable protein source material with water maintained at a pH of minimum protein solubility, subjecting the washed vegetable protein source material to digestion in water at a pH of from about 2 to 6 in the presence of acid phytase, and separating a liquid extract containing soluble protein from the insoluble digestion residue.
Claim 3
Dependent Claim
22 words
A process in accordance with claim 1 wherein the washed vegetable protein source material is subjected to digestion with an acid-fungal protease.
Claim 4
Dependent Claim
22 words
A process in accordance with claim 1 wherein the said digestion is carried out at a pH of about 3 to 5.
Claim 5
Dependent Claim
37 words
A process in accordance with claim 1 wherein prior to separating a liquid extract containing soluble protein from the insoluble digestion residue, the entire digestion mixture is heated to a temperature sufficient to inactivate enzymes present therein.
Claim 6
Dependent Claim
37 words
A process in accordance with claim 1 wherein after separation of the liquid extract containing soluble protein from the insoluble digestion residue, the said liquid extract is heated to a temperature sufficient to inactivate enzymes present therein.
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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |