US4551345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing a liquid aroma and aromatizing a dry coffee substrate with same
Assignee: General Foods Corp
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Filing: 1984-09-17
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Granted: 1985-11-05
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Expires: 2004-09-17
Abstract
Abstract A process for preparing a liquid aroma containing concentrated coffee aromatic compounds from a grinder gas frost is described. A higher yield of coffee aromatics is enabled, and these aromatics are of a higher quality. The liquid aroma may be used to aromatize coffee powders, glycerides or other food substrates. Coffee powders aromatized with the liquid aroma are described as having a "buttery" "roasted and ground" coffee aroma.
Inventors
- 👤 Reghina Davidescu
- 👤 Gaetano J. de Ceglie
- 👤 Harold W. Jacquett
- 👤 Joseph A. Paluzzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:16
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/46; A23F5/48; A23F5/486
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
172 words
A process for preparing a liquid coffee aroma comprising the steps of: (a) condensing coffee grinder gas as a frost; (b) placing the grinder gas frost in a pressure vessel; (c) supplying heat to the contents of the vessel and allowing the frost to equilibrate at a pressure in excess of 750 psi, thereby forming three phases, a water phase, a liquid carbon dioxide phase, and a gaseous carbon dioxide phase; (d) draining the water phase from the vessel; (e) chilling a second vessel to a temperature of less than -80° F.; (f) venting from below the liquid carbon dioxide surface in the first vessel through a line into the second vessel for a period sufficient to transfer substantially all the liquid carbon dioxide from the first to the second vessel, wherein a solid aroma-rich phase is formed; (g) isolating the second vessel from the first vessel and warming the second vessel to a temperature of between about -20° F. and 15° F., thereby producing a highly concentrated, effervescent liquid coffee aroma.
Claim 2
Dependent Claim
172 words
A process for preparing a liquid coffee aroma comprising the steps of: (a) condensing coffee grinder gas as a frost; (b) placing the grinder gas frost in a pressure vessel; (c) supplying heat to the contents of the vessel and allowing the frost to equilibrate at a pressure in excess of 750 psi, thereby forming three phases, a water phase, a liquid carbon dioxide phase, and a gaseous carbon dioxide phase; (d) draining the water phase from the vessel; (e) chilling a second vessel to a temperature of less than -80° F.; (f) venting from below the liquid carbon dioxide surface in the first vessel through a line into the second vessel for a period sufficient to transfer substantially all the liquid carbon dioxide from the first to the second vessel, wherein a solid aroma-rich phase is formed; (g) isolating the second vessel from the first vessel and warming the second vessel to a temperature of between about -20° F. and 15° F., thereby producing a highly concentrated, effervescent liquid coffee aroma.
Claim 3
Dependent Claim
19 words
The process of claim 1 wherein the second vessel of step (e) is chilled to less than -110° F.
Claim 4
Dependent Claim
19 words
The process of claim 1 wherein the venting of step (f) occurs from the bottom of the first vessel.
Claim 5
Dependent Claim
32 words
The process of claim 1 wherein the venting of step (f) continues until the pressure in the first vessel drops to a pressure of from about 200 psi to about 400 psi.
Claim 6
Dependent Claim
29 words
The process of claim 4 wherein said venting continues until the pressure in the first vessel drops to a pressure of from about 325 psi to about 375 psi.
Claim 7
Dependent Claim
23 words
The process of claim 1 wherein a nozzle is affixed to the end of the line of step (f) within the second vessel.
Claim 8
Dependent Claim
60 words
The process of claim 1 further comprising warming the effervescent liquid coffee aroma in a sealed pressure vessel to between 32° F. to 40° F. thereby forming three phases, a water phase, a liquid carbon dioxide phase, and a gaseous carbon dioxide phase; draining the water phase; and chilling the vessel to between about -20° F. to about 15° F.
Claim 9
Dependent Claim
15 words
The process of claim 1 further comprising contacting the liquid aroma with a food substrate.
Claim 10
Dependent Claim
12 words
The process of claim 8 wherein said substrate is a coffee powder.
Claim 11
Dependent Claim
11 words
The process of claim 9 wherein said coffee powder is microporous.
Claim 12
Dependent Claim
11 words
The process of claim 8 wherein said substrate is a glyceride.
Claim 13
Dependent Claim
11 words
The process of claim 11 wherein said glyceride is coffee oil.
Claim 14
Dependent Claim
13 words
The process of claim 8 wherein said substrate is roasted and ground coffee.
References Cited (Backward Citations)
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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) | 1988-11-04 | 1989-05-06 | 1989-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-04 | 1993-05-06 | 1993-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-04 | 1997-05-06 | 1997-11-05 | $7700.00 | Window Closed / Lapsed |