US3859451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of stable protein concentrates from grain by-products
Assignee: United States Department of Agriculture
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Filing: 1973-09-24
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Granted: 1975-01-07
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Expires: 1993-09-24
Abstract
Abstract Stable protein concentrates are prepared from wheat millfeed by a process which comprises blending the millfeed with aqueous alkali, separating a juice containing soluble protein and suspended starch and fat therefrom, and coagulating and separating a solid protein concentrate from the so-separated juice.
Inventors
- 👤 Robert M Saunders
- 👤 George O Kohler
- 👤 Margaret A Connor
- 👤 Richard H Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:00
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/001; A23J1/005; Y; Y10; Y10S; Y10S530/00; Y10S530/859
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
107 words
A PROCESS FOR PREPARING A STABLE PROTEIN CONCENTRATE FROM WHEAT MILLFEED, SAID CONCENTRATE BEING USEFUL AS A HUMAN FOOD SUPPLEMENT, WHICH COMPRISES A. APPLYING AN AQUEOUS ALKALIZER TO THE MILLFEED TO ADJUST TO A PH OF 9 B. PRESSING A JUICE CONTAINING SOLUBLE PROTEINS THEREFROM, C. ACIDIFYING THE JUCIE TO PH 5.5 TO 6.0, D. COAGULATING A SOLID PROTEIN CONCENTRATE WITHIN THE JUICE BY APPLYING STEAM TO THE JUICE UNTIL ITS TEMPERATURE IS RAISED TO 85*C., E. SEPARATING THE SO-COAGULATED SOLID PROTEIN CONCENTRATE FROM THE JUICE, F. WASHING THE SOLID PROTEIN CONCENTRATE WITH WATER, WHEREBY TO LOWER ITS ASH CONTENT WITH WATER, G. DRYING THE SO-WASHED PRODUCT.
Claim 2
Dependent Claim
107 words
A PROCESS FOR PREPARING A STABLE PROTEIN CONCENTRATE FROM WHEAT MILLFEED, SAID CONCENTRATE BEING USEFUL AS A HUMAN FOOD SUPPLEMENT, WHICH COMPRISES A. APPLYING AN AQUEOUS ALKALIZER TO THE MILLFEED TO ADJUST TO A PH OF 9 B. PRESSING A JUICE CONTAINING SOLUBLE PROTEINS THEREFROM, C. ACIDIFYING THE JUCIE TO PH 5.5 TO 6.0, D. COAGULATING A SOLID PROTEIN CONCENTRATE WITHIN THE JUICE BY APPLYING STEAM TO THE JUICE UNTIL ITS TEMPERATURE IS RAISED TO 85*C., E. SEPARATING THE SO-COAGULATED SOLID PROTEIN CONCENTRATE FROM THE JUICE, F. WASHING THE SOLID PROTEIN CONCENTRATE WITH WATER, WHEREBY TO LOWER ITS ASH CONTENT WITH WATER, G. DRYING THE SO-WASHED PRODUCT.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein the alkalizer in Step a is ammonia.
Claim 4
Dependent Claim
20 words
The process of claim 1 wherein 0.1 to 1% of bisulphite ion is added to the mixture in Step a.
Claim 5
Dependent Claim
115 words
A process for preparing a stable protein concentrate from wheat millfeed, said concentrate being useful as a human food supplement, which comprises a. applying to the millfeed (i) aqueous ammonia to adjust to a pH of 9, and (ii) 0.1 to 1% of bisulphite ion, b. pressing a juice containing soluble proteins therefrom, c. acidifying the juice to pH 5.5 to 6.0, d. coagulating a solid protein concentrate within the juice by applying steam to the juice until its temperature is raised to 85* C., e. separating the so-coagulated solid protein concentrate from the juice, f. washing the solid protein concentrate with water, whereby to lower its ash content, and g. drying the so-washed product.
Claim 6
Dependent Claim
115 words
A process for preparing a stable protein concentrate from wheat millfeed, said concentrate being useful as a human food supplement, which comprises a. applying to the millfeed (i) aqueous ammonia to adjust to a pH of 9, and (ii) 0.1 to 1% of bisulphite ion, b. pressing a juice containing soluble proteins therefrom, c. acidifying the juice to pH 5.5 to 6.0, d. coagulating a solid protein concentrate within the juice by applying steam to the juice until its temperature is raised to 85* C., e. separating the so-coagulated solid protein concentrate from the juice, f. washing the solid protein concentrate with water, whereby to lower its ash content, and g. drying the so-washed product.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |