Patent US4059706A successfully refreshed from Google Patents.
US4059706A
Expired / Lapsed
US
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Spray-dried L-aspartic acid derivatives
Assignee: General Foods Corp
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Filing: 1975-02-14
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Granted: 1977-11-22
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Expires: 1995-02-14
Abstract
Abstract A slurry-forming substantial level of discretely-sized undissolved L-aspartic acid sweetening compound, preferably one milled to reduce the particle size of undissolved ester crystals, is encapsulated in a water soluble encapsulating agent by drying a uniform dispersion as by spray drying to yield a high density readily soluble powderous sweetening composition which is readily blendable and uniform in sweetening power and resists caking and clumping.
Inventors
- 👤 LaMonte D. Pischke
- 👤 Myron D. Shoaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:50
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/12; B01J13/125; A; A23; A23L; A23L27/00; A23L27/30; A23L27/31; A23L27/32; Y; Y10; Y10S; Y10S426/00; Y10S426/804
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
116 words
A process for fixation of sweet L-aspartic acid derivative dipeptide compounds which comprises forming a dispersion containing a slurry of undissolved particles of said sweetening compound in an aqueous solution of encapsulating agent, the level of said undissolved sweetening compound solids being in excess of the total sweetening solids of said compounds in solution in said dispersion and the dispersion being maintained at a temperature low enough to assure the existence of at least a part of the sweetening compound as discretely distributed undissolved particles, and drying said dispersion to a moisture content below 5% and a density greater than 0.2 grams per cc. to encapsulate the particles of said sweetening compound in said encapsulating agent.
Claim 2
Dependent Claim
116 words
A process for fixation of sweet L-aspartic acid derivative dipeptide compounds which comprises forming a dispersion containing a slurry of undissolved particles of said sweetening compound in an aqueous solution of encapsulating agent, the level of said undissolved sweetening compound solids being in excess of the total sweetening solids of said compounds in solution in said dispersion and the dispersion being maintained at a temperature low enough to assure the existence of at least a part of the sweetening compound as discretely distributed undissolved particles, and drying said dispersion to a moisture content below 5% and a density greater than 0.2 grams per cc. to encapsulate the particles of said sweetening compound in said encapsulating agent.
Claim 3
Dependent Claim
15 words
The process of claim 1 wherein the dispersion is sprayed as droplets and then dried.
Claim 4
Dependent Claim
20 words
The process of claim 1 wherein the sweetening compound is milled while in an aqueous medium to effect said dispersion.
Claim 5
Dependent Claim
18 words
The process of claim 3 wherein the sweetening compound is admixed with the encapsulating solution and then milled.
Claim 6
Dependent Claim
19 words
The process of claim 1 wherein the encapsulating agent is a dextrin material having a D.E. less than 40.
Claim 7
Dependent Claim
25 words
The process of claim 5 wherein the dextrin has a dextrose equivalency of 5-15 and wherein the dextrin material contains a major amount of oligosaccharides.
Claim 8
Dependent Claim
16 words
The process of claim 1 wherein the sweetening compound is a lower alkyl ester of L-aspartyl-L-phenylalanine.
Claim 9
Dependent Claim
13 words
The process of claim 7 wherein the slurry is maintained below 160° F.
Claim 10
Dependent Claim
10 words
The process of claim 1 wherein the dispersion is acidified.
Claim 11
Dependent Claim
20 words
The process of claim 9 wherein the acid content of the dispersion is a minor percent of the fixing solids.
Claim 12
Dependent Claim
15 words
The process of claim 10 wherein the acid is less than 10% of the composition.
Claim 13
Dependent Claim
15 words
The process of claim 1 wherein the dispersion is maintained below 100° F throughout processing.
Claim 14
Dependent Claim
25 words
The process of claim 1 wherein the sweetening compound is present at a level of 30 - 90% of the total solids in the dispersion.
Claim 15
Dependent Claim
35 words
The process of claim 1 wherein the dispersion is milled at a temperature less than 160° F and then spray dried at an inlet air temperature below 475° F to produce discrete hollow spherical particles.
Claim 16
Dependent Claim
58 words
The process of claim 14 wherein the sweetening compound is at least 15% of the total solids in the dispersion and the ratio of said sweetening compound to said encapsulating agent is 1:4 to 4:1 and wherein compound particles are milled in said dispersion by passage through a narrow orifice having an opening no larger than 125 microns.
Claim 17
Dependent Claim
21 words
The process of claim 15 wherein said sweetening compound is 30 - 90 percent of the total solids in said dispersion.
Claim 18
Dependent Claim
16 words
The process of claim 16 wherein said sweetening compound is a lower alkyl ester of L-aspartyl-L-phenylalanine.
Claim 19
Dependent Claim
12 words
The process of claim 17 wherein said ester is the methyl ester.
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) | 1980-11-21 | 1981-05-23 | 1981-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-21 | 1985-05-23 | 1985-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-21 | 1989-05-23 | 1989-11-22 | $7700.00 | Window Closed / Lapsed |