US4384004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulated APM and method of preparation
Assignee: Warner Lambert Co LLC
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Filing: 1981-06-02
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Granted: 1983-05-17
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Expires: 2001-06-02
Abstract
Abstract The present invention comprises the encapsulation of the artificial sweetener L-aspartyl-L-phenylalanine methyl ester (APM) within a coating material including cellulose ethers, cellulose esters, certain vinyl polymers, gelatin and zein, in a ratio of coating material to APM to 1:1 or less. Shelf stability of products containing the encapsulated APM is nearly doubled. The presently stabilized APM is particularly suited for incorporation into chewing gum formulations.
Inventors
- 👤 Theresa Cea
- 👤 Joseph D. Posta
- 👤 Michael Glass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:03
CPC Classifications
A; A23; A23G; A23G4/00; A23G4/06; A23G4/14; A23G4/10; A23G4/18; A23G4/20; A23L; A23L27/00; A23L27/30; A23L27/31; A23L27/32; A23L27/70; A23L27/72; A23V; A23V2002/00
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
52 words
L-aspartyl-L-phenylalanine methyl ester comprising solid particles of said methyl ester encapsulated by a coating material selected from the group consisting of cellulose, cellulose derivatives, arabinogalactin, gum arabic, polyolefins, waxes, vinyl polymers, gelatin, zein and mixtures thereof, wherein the amount of said coating material to said methyl ester is from 1:1 to 1:10.
Claim 2
Dependent Claim
52 words
L-aspartyl-L-phenylalanine methyl ester comprising solid particles of said methyl ester encapsulated by a coating material selected from the group consisting of cellulose, cellulose derivatives, arabinogalactin, gum arabic, polyolefins, waxes, vinyl polymers, gelatin, zein and mixtures thereof, wherein the amount of said coating material to said methyl ester is from 1:1 to 1:10.
Claim 3
Dependent Claim
60 words
The methyl ester of claim 1 wherein said coating material is selected from the group consisting of cellulose, methyl cellulose, ethyl cellulose, cellulose nitrate, cellulose acetate phthalate, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, arabinogalactan; polyethylene, polymethacrylates, polyamides, ethylene-vinyl acetate copolymers, polyvinylpyrrolidone; gum arabic; paraffin wax, carnauba wax, spermaceti, beeswax; stearic acid, stearyl alcohol, glyceryl stearate; gelatin, zein and mixtures thereof.
Claim 4
Dependent Claim
27 words
The methyl ester of claim 1, wherein said particles are encapsulated by the deposition of atomized droplets of at least one layer of said coating material thereon.
Claim 5
Dependent Claim
18 words
The methyl ester of claim 1 wherein plural layers of said coating material are deposited upon said particles.
Claim 6
Dependent Claim
12 words
The methyl ester of claim 1 wherein plural coating materials are utilized.
Claim 7
Dependent Claim
22 words
The methyl ester of claim 5 wherein said plural coating materials are mixed with each other prior to deposition upon said particles.
Claim 8
Dependent Claim
13 words
The methyl ester of claim 1 wherein said ratio ranges up to 1:5.
Claim 9
Dependent Claim
33 words
The methyl ester of claim 1 wherein said methyl ester is combined with at least one optional sweetener selected from sugar, sugar substitutes, and mixtures thereof, prior to encapsulation by said coating material.
Claim 10
Dependent Claim
12 words
The methyl ester of claim 8 wherein said optional sweetener comprises sorbitol.
Claim 11
Dependent Claim
19 words
A chewing gum composition comprising a gum base, a flavor, a bulking agent and the sweetener, of claim 1.
Claim 12
Dependent Claim
59 words
The composition of claim 10 wherein said coating material is selected from the group consisting of cellulose, methyl cellulose, ethyl cellulose, cellulose nitrate, cellulose acetate phthalate, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, arabinogalactan; polyethylene, polymethacrylates, polyamides, ethylene-vinyl acetate copolymers, polyvinylpyrrolidone; gum arabic; paraffin wax, carnauba wax, spermaceti, beeswax; stearic acid, stearyl alcohol, glyceryl stearate; gelatin, zein and mixtures thereof.
Claim 13
Dependent Claim
26 words
The composition of claim 10, wherein said particles are encapsulated by the deposition of atomized droplets of at least one layer of said coating material thereon.
Claim 14
Dependent Claim
17 words
The composition of claim 10 wherein plural layers of said coating material are deposited upon said particles.
Claim 15
Dependent Claim
11 words
The composition of claim 10 wherein plural coating materials are utilized.
Claim 16
Dependent Claim
20 words
The composition of claim 14 wherein said plural coating materials are mixed with other prior to deposition upon said particles.
Claim 17
Dependent Claim
15 words
The composition of claim 10 wherein said ratio ranges from about 1:1 to about 1:5.
Claim 18
Dependent Claim
28 words
The composition of claim 10 wherein said methyl ester is combined with at least one optional sweetener selected from sugars, sugar substitutes, and mixtures thereof prior to encapsulation.
Claim 19
Dependent Claim
11 words
The composition of claim 17 wherein said optional sweetener comprises sorbitol.
Claim 20
Independent Claim
92 words
A method for preparing L-aspartyl-L-phenylalanine methyl ester having improved shelf stability when incorporated in food products, comprising forming solid particles of said methyl ester, and encapsulating said solid particles in a coating material selected from the group consisting of cellulose, cellulose derivatives, arabinogalactin, gum arabic, polyolefins, waxes, vinyl polymers, gelatin, zein and mixtures thereof, wherein the amount of said coating material to said methyl ester is from 1:1 to 1:10 wherein said methyl ester is encapsulated by the deposition of the coating material at a temperature of up to about 200° F.
Claim 21
Independent Claim
92 words
A method for preparing L-aspartyl-L-phenylalanine methyl ester having improved shelf stability when incorporated in food products, comprising forming solid particles of said methyl ester, and encapsulating said solid particles in a coating material selected from the group consisting of cellulose, cellulose derivatives, arabinogalactin, gum arabic, polyolefins, waxes, vinyl polymers, gelatin, zein and mixtures thereof, wherein the amount of said coating material to said methyl ester is from 1:1 to 1:10 wherein said methyl ester is encapsulated by the deposition of the coating material at a temperature of up to about 200° F.
Claim 22
Dependent Claim
55 words
The method of claim 19 wherein said coating material is selected from the group consisting of cellulose, methyl cellulose, ethyl cellulose, cellulose nitrate, cellulose acetate phthalate, carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, arabinogalactan; polyethylene, polymethacrylates, pyrrolidone; gum arabic; paraffin wax, carnauba wax, spermaceti, beeswax; stearic acid, stearyl alcohol, glyceryl stearate; gelatin, zein and mixtures thereof.
Claim 23
Dependent Claim
26 words
The method of claim 19, wherein said particles are encapsulated by the deposition of atomized droplets of at least one layer of said coating material thereon.
Claim 24
Dependent Claim
22 words
The method of claim 19 wherein said deposition is conducted at a temperature ranging from about 100° F. to about 125° F.
Claim 25
Dependent Claim
17 words
The method of claim 19 wherein plural layers of said coating material are deposited upon said particles.
Claim 26
Dependent Claim
11 words
The method of claim 19 wherein plural coating materials are utilized.
Claim 27
Dependent Claim
21 words
The method of claim 24 wherein said plural coating materials are mixed with each other prior to deposition upon said particles.
Claim 28
Dependent Claim
18 words
The method of claim 24 wherein said plural coating materials are deposited separately and sequentially upon said particles.
Claim 29
Dependent Claim
12 words
The method of claim 19 wherein said ratio ranges up to 1:5.
Claim 30
Dependent Claim
32 words
The method of claim 19 wherein said methyl ester is combined with at least one optional sweetener selected from sugar, sugar substitutes, and mixtures thereof, prior to encapsulation by said coating material.
Claim 31
Dependent Claim
11 words
The method of claim 28 wherein said optional sweetener comprises sorbitol.
Claim 32
Dependent Claim
16 words
The stabilized methyl ester of claim 19 wherein said particles are encapsulated under substantially anhydrous conditions.
Claim 33
Dependent Claim
27 words
The method of claim 21 wherein said deposition is performed by conducting said particles in a stream of air passing through a zone of said atomized droplets.
Claim 34
Independent Claim
92 words
A method for extending the shelf stability of a chewing gum composition to which the sweetener L-aspartyl-L-phenylalanine methyl ester is to be added, comprising forming solid particles of said methyl ester, and encapsulating said solid particles in a coating material selected from the group consisting of cellulose, cellulose derivatives, arabinogalactin, gum arabic, polyolefins, waxes, vinyl polymers, gelatin, zein and mixtures thereof, wherein the amount of said coating material to said methyl ester is from 1:1 to 1:10, and recovering the encapsulated particles, and incorporating said encapsulated particles into said chewing gum composition.
Claim 35
Independent Claim
92 words
A method for extending the shelf stability of a chewing gum composition to which the sweetener L-aspartyl-L-phenylalanine methyl ester is to be added, comprising forming solid particles of said methyl ester, and encapsulating said solid particles in a coating material selected from the group consisting of cellulose, cellulose derivatives, arabinogalactin, gum arabic, polyolefins, waxes, vinyl polymers, gelatin, zein and mixtures thereof, wherein the amount of said coating material to said methyl ester is from 1:1 to 1:10, and recovering the encapsulated particles, and incorporating said encapsulated particles into said chewing gum composition.
Claim 36
Dependent Claim
57 words
The method of claim 32 wherein said coating material is selected from the group consisting of cellulose, methyl cellulose, ethyl cellulose, cellulose nitrate, cellulose acetate phthalate, carboxymethyl cellulose, hydroxyethyl cellulose; arabinogalactan; polyethylene, polymethacrylates, polyamides, ethylene-vinyl acetate copolymers, polyvinylpyrrolidone; gum arabic; paraffin wax, carnauba wax, spermaceti, beeswax; stearic acid, stearyl alcohol, glyceryl stearate; gelatin, zein and mixtures thereof.
Claim 37
Dependent Claim
32 words
The method of claim 32 wherein said methyl ester is combined with at least one optional sweetener selected from sugar, sugar substitutes, and mixtures thereof, prior to encapsulation by said coating material.
Claim 38
Dependent Claim
11 words
The method of claim 34 wherein said optional sweetener comprises sorbitol.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |