US3869438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for isolating oil-seed proteins using liquid fluorocarbons
Assignee: United States Department of Agriculture
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Filing: 1974-05-20
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Granted: 1975-03-04
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Expires: 1994-05-20
Abstract
Abstract Cereal or other protein-containing material is ground and mixed with a liquid fluorocarbon whose density is adjusted to 1.35 to 1.45. The resulting slurry is centrifuged, whereby to produce a protein fraction floating on the surface of the liquid, a bottom phase composed mainly of starch, and an intermediate fluorocarbon phase containing fat. The protein phase can be easily separated from the remainder, dried, and used as a dietary supplement or The like. the starch and fat components can also be readily separated from the centrifuged slurry.
Inventors
- 👤 John W Finley
- 👤 Earl Hautala
- 👤 Charles E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:45
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10; A; A23; A23J; A23J1/00; A23J1/12; A23J1/14; A23J1/142
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
68 words
A PROCESS FOR ISOLATING PROTEIN FROM A PULVERIZED OIL SEED, WHICH COMPRISES A. FORMING A SLURRY OF SAID PULVERIZED OIL SEED IN A LIQUID FLUOROCARBON CONTAINING SUFFECIENT LOW-DENSITY HYDROCARBBON SOLVENT TO PROVIDE A DENSITY OF 1.35 TO 1.45, B. CENTRIFUGING THE SLURRY TO PARTITION THE COMPONENTS OF THE OIL SEED INTO SEPARATE FRACTIONS, INCLUDING A PROTEIN FRACTION FLOATING ON SAID FLUOROCARBON LIQUID, AND C. COLLECTING SAID PROTEIN FRACTION.
Claim 2
Dependent Claim
68 words
A PROCESS FOR ISOLATING PROTEIN FROM A PULVERIZED OIL SEED, WHICH COMPRISES A. FORMING A SLURRY OF SAID PULVERIZED OIL SEED IN A LIQUID FLUOROCARBON CONTAINING SUFFECIENT LOW-DENSITY HYDROCARBBON SOLVENT TO PROVIDE A DENSITY OF 1.35 TO 1.45, B. CENTRIFUGING THE SLURRY TO PARTITION THE COMPONENTS OF THE OIL SEED INTO SEPARATE FRACTIONS, INCLUDING A PROTEIN FRACTION FLOATING ON SAID FLUOROCARBON LIQUID, AND C. COLLECTING SAID PROTEIN FRACTION.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein the pulverized oil seed is pulverized soybean.
Claim 4
Dependent Claim
11 words
The process of claim 1 wherein the liquid fluorocarbon is monofluorotrichloromethane.
Claim 5
Dependent Claim
12 words
The process of claim 1 wherein the low-density hydrocarbon solvent is hexane.
Claim 6
Dependent Claim
25 words
The process of claim 1 wherein 0.1 to 2% of glacial acetic acid is incorporated into the liquid fluorocarbon prior to formation of the slurry.
Claim 7
Dependent Claim
24 words
The process of claim 1 wherein 2 to 4% of water is incorporated with the pulverized oil seed prior to formation of the slurry.
Claim 8
Dependent Claim
77 words
A process for isolating protein from pulverized soybean, which comprises a. moistening the pulverized soybean with 2 to 4% water, b. forming a slurry of the moistened pulverized soybean in monofluorotrichloromethane containing 0.1 to 2% glacial acetic acid and sufficient hexane to provide a density of 1.424, c. centrifuging the slurry to partition the components of the soybean into separate fractions, including a protein fraction floating on the said fluorocarbon liquid, and d. collecting said protein fraction.
Claim 9
Dependent Claim
77 words
A process for isolating protein from pulverized soybean, which comprises a. moistening the pulverized soybean with 2 to 4% water, b. forming a slurry of the moistened pulverized soybean in monofluorotrichloromethane containing 0.1 to 2% glacial acetic acid and sufficient hexane to provide a density of 1.424, c. centrifuging the slurry to partition the components of the soybean into separate fractions, including a protein fraction floating on the said fluorocarbon liquid, and d. collecting said protein fraction.
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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |