US4675198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of textured vegetable product off-flavor by supercritical fluid or liquid extraction
Assignee: Procter and Gamble Co
•
Filing: 1984-12-31
•
Granted: 1987-06-23
•
Expires: 2004-12-31
Abstract
Abstract The invention is a method for the removal of off-flavor from a textured vegetable product by extraction with a gas in the supercritical fluid or liquid state. The method for supercritical fluid extraction of off-flavors comprises the steps of: (a) extracting off-flavors from the textured vegetable product by contacting it with a supercritical fluid gas in a pressurized container; and (b) removing the gas and off-flavors from the textured vegetable product. Liquid extraction comprises the steps of: (a) extracting the off-flavors from the textured vegetable product by contacting it with a liquid gas in a pressurized container; and (b) removing the gas and off-flavors from the textured vegetable product. The temperature and pressure of the gas may be varied to maintain it in the supercritical fluid or liquid state. Carbon dioxide is a preferred gas.
Inventors
- 👤 Michael R. Sevenants
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:05
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10; C11B1/104; A; A23; A23L; A23L5/00; A23L5/20; A23L5/23; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/54
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
58 words
A method for the supercritical fluid extraction of off-flavors from a textured vegetable product comprising the steps of: (a) contacting textured vegetable product, hydrated to a moisture content of within about 30% of its fully hydrated point, with a supercritical fluid in a pressurized container; and (b) removing the supercritical fluid and off-flavors from the textured vegetable product.
Claim 2
Independent Claim
58 words
A method for the supercritical fluid extraction of off-flavors from a textured vegetable product comprising the steps of: (a) contacting textured vegetable product, hydrated to a moisture content of within about 30% of its fully hydrated point, with a supercritical fluid in a pressurized container; and (b) removing the supercritical fluid and off-flavors from the textured vegetable product.
Claim 3
Dependent Claim
16 words
A method according to claim 1 wherein the textured vegetable product is a textured soybean product.
Claim 4
Dependent Claim
14 words
A method according to claim 1 wherein the supercritical fluid is a hydrocarbon gas.
Claim 5
Dependent Claim
13 words
A method according to claim 1 wherein the supercritical fluid is carbon dioxide.
Claim 6
Dependent Claim
26 words
A method according to claim 1 wherein the textured vegetable product is hydrated to a moisture content of within about 10% of its fully hydrated point.
Claim 7
Dependent Claim
27 words
A method according to claim 5 wherein the supercritical fluid is selected from the group consisting of carbon dioxide, nitrous oxide, ethane, ethylene, propane, propylene and butane.
Claim 8
Independent Claim
56 words
A method for the liquid extraction of off-flavors from a textured vegetable product comprising the steps of: (a) contacting textured vegetable product, hydrated to a moisture content of within about 30% of its fully hydrated point, with a liquid gas in a pressurized container; and (b) removing the gas and off-flavors from the textured vegetable product.
Claim 9
Independent Claim
56 words
A method for the liquid extraction of off-flavors from a textured vegetable product comprising the steps of: (a) contacting textured vegetable product, hydrated to a moisture content of within about 30% of its fully hydrated point, with a liquid gas in a pressurized container; and (b) removing the gas and off-flavors from the textured vegetable product.
Claim 10
Dependent Claim
16 words
A method according to claim 7 wherein the textured vegetable product is a textured soybean product.
Claim 11
Dependent Claim
13 words
A method according to claim 8 wherein the gas is a hydrocarbon gas.
Claim 12
Dependent Claim
12 words
A method according to claim 7 wherein the gas is carbon dioxide.
Claim 13
Dependent Claim
26 words
A method according to claim 7 wherein the textured vegetable product is hydrated to a moisture content of within about 10% of its fully hydrated point.
Claim 14
Dependent Claim
27 words
A method according to claim 11 wherein the liquid gas is selected from the group consisting of carbon dioxide, nitrous oxide, ethane, ethylene propane, propylene and butane.
References Cited (Backward Citations)
US3969196A
Cited
US3477856A
Cited
US4123559A
Cited
GB1385303A
Cited
US3939281A
Cited
CA1014571A
Cited
US3998800A
Cited
US3966981A
Cited
US4152465A
Cited
US4079155A
Cited
US4400398A
Cited
US4427707A
Cited
EP0065106A2
Cited
US4466923A
Cited
US4493854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |