Patent US4985265A successfully refreshed from Google Patents.
US4985265A
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Process for extraction of spices
Assignee: LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Filing: 1989-12-12
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Granted: 1991-01-15
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Expires: 2009-12-12
Abstract
Abstract A process for extracting spices in liquid carbon dioxide in the presence of an alimentarily acceptable cosolvent which does not degrade the flavors of the spices. The process is particularly applicable to the extraction of piperine and aromatic compounds of pepper.
Inventors
- 👤 Soraya Duboc
- 👤 Henri Renon
- 👤 Serge Laugier
- 👤 Jean-Luc Mizandjian
- 👤 Jean-Louis Pean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:08
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/02; B01D11/0203; A; A23; A23L; A23L27/00; A23L27/10; A23L27/11
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
103 words
A process for extracting piperine and aromatic compounds of peppercorns comprising extracting said compounds in liquid carbon dioxide in the presence of an alimentarily acceptable cosolvent which does not degrade the flavors of the pepper, said cosolvent being selected from the group consisting of hydrocarbons having up to four carbon atoms, aliphatic alcohols having from two to four carbon atoms, and ethers the temperature and pressure conditions being controlled at temperatures less than 1° C. above the critical temperature of the carbon dioxide and at pressures between 20 and 150 bars, such that the carbon dioxide--cosolvent mixture remains in the liquid monophase state.
Claim 2
Dependent Claim
103 words
A process for extracting piperine and aromatic compounds of peppercorns comprising extracting said compounds in liquid carbon dioxide in the presence of an alimentarily acceptable cosolvent which does not degrade the flavors of the pepper, said cosolvent being selected from the group consisting of hydrocarbons having up to four carbon atoms, aliphatic alcohols having from two to four carbon atoms, and ethers the temperature and pressure conditions being controlled at temperatures less than 1° C. above the critical temperature of the carbon dioxide and at pressures between 20 and 150 bars, such that the carbon dioxide--cosolvent mixture remains in the liquid monophase state.
Claim 3
Dependent Claim
26 words
The process according to claim 1 wherein the cosolvent is used in a concentration of between 2 and 10 mole % relative to the carbon dioxide.
Claim 4
Dependent Claim
36 words
The process according to claim 1 wherein the extraction process is effected in a liquid carbon dioxide phase at 28° C. under a pressure of 75 bars in the presence of 6 mole % of ethanol.
Claim 5
Dependent Claim
33 words
The process according to claim 1 wherein the extraction process is effected with carbon dioxide at 28° C. under a pressure of 75 bars in the presence of 2.5 mole % of propanol-1.
Claim 6
Dependent Claim
22 words
The process according to claim 1 wherein the cosolvent is selected from the group consisting of linear and branched chain aliphatic alcohols.
Claim 7
Dependent Claim
20 words
The process according to claim 5 wherein the alcohols are selected from the group consisting of ethanol, propanol-1, and propanol-2.
Claim 8
Dependent Claim
12 words
The process according to claim 1 wherein the cosolvent is an ether.
Claim 9
Dependent Claim
11 words
The process according to claim 7 wherein the ether is dimethylether.
Claim 10
Dependent Claim
12 words
The process according to claim 1 wherein the hydrocarbon cosolvent is butane.
Claim 11
Dependent Claim
25 words
The process according to claim 1 wherein the cosolvent is used in a concentration between 1 and 40 mole % relative to the carbon dioxide.
Claim 12
Dependent Claim
25 words
The process according to claim 2 wherein the cosolvent is used in a concentration between 2.5 and 6 mole % relative to the carbon dioxide.
Claim 13
Dependent Claim
26 words
The process according to claim 2 wherein the extraction process is effected in a liquid carbon dioxide phase under a pressure between 70 and 90 bars.
Claim 14
Dependent Claim
20 words
The process according to claim 2 wherein the extraction process is effected at temperatures between -20° C. and 32° C.
Claim 15
Dependent Claim
20 words
The process according to claim 2 wherein the extraction process is effected at temperatures between 15° C. and 32° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-14 | 1994-07-16 | 1995-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-14 | 1998-07-16 | 1999-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-14 | 2002-07-16 | 2003-01-15 | $7700.00 | Window Closed / Lapsed |