US4059458A
Expired / Lapsed
US
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Oil-in-water emulsion containing starch esters
Assignee: Unilever Bestfoods North America
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Filing: 1974-07-01
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Granted: 1977-11-22
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Expires: 1994-07-01
Abstract
Abstract Oil-in-water emulsions containing starch carboxylates as the emulsifying agent. The starch carboxylate imparts improved stability to the emulsions and in the case of salad dressings it can be substituted for all or a portion of the egg content without the loss of any desirable properties.
Inventors
- 👤 Felix Joseph Germino
- 👤 Francis E. Kite
- 👤 Edwin H. Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:29
CPC Classifications
C; C08; C08L; C08L3/00; C08L3/04; C08L3/06; A; A23; A23L; A23L27/00; A23L27/60; A23L29/00; A23L29/10; A23L29/20; A23L29/206; A23L29/212; A23L35/00; A23L35/10; C09; C09K; C09K23/00; C09K23/34; C09K23/56
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
66 words
A stable oil-in-water emulsion which comprises: a. a continuous aqueous phase; b. a discontinuous phase emulsified in said continuous phase comprising an oil or lipid; and c. an emulsifying agent for maintaining said stable oil-in-water emulsion consisting essentially of a starch ester of at least one aliphatic carboxylic acid having 2 - 4 carbons having a degree of substitution of from about 0.05 to about 1.0.
Claim 2
Dependent Claim
66 words
A stable oil-in-water emulsion which comprises: a. a continuous aqueous phase; b. a discontinuous phase emulsified in said continuous phase comprising an oil or lipid; and c. an emulsifying agent for maintaining said stable oil-in-water emulsion consisting essentially of a starch ester of at least one aliphatic carboxylic acid having 2 - 4 carbons having a degree of substitution of from about 0.05 to about 1.0.
Claim 3
Dependent Claim
20 words
The oil-in-water emulsion of claim 1 wherein the oil content of the emulsion is from about 10% to about 75%.
Claim 4
Dependent Claim
22 words
The oil-in-water emulsion of claim 1 wherein the degree of substitution of the starch ester is from about 0.15 to about 0.30.
Claim 5
Dependent Claim
19 words
The oil-in-water emulsion of claim 1 wherein the concentration of starch ester is from about 0.1% to about 30%.
Claim 6
Dependent Claim
15 words
The oil-in-water emulsion of claim 1 wherein the starch ester is a corn starch propionate.
Claim 7
Dependent Claim
15 words
The oil-in-water emulsion of claim 5 wherein the starch propionate is a thick-boiling starch propionate.
Claim 8
Dependent Claim
15 words
The oil-in-water emulsion of claim 5 wherein the starch propionate is a thin-boiling starch propionate.
Claim 9
Dependent Claim
15 words
The oil-in-water emulsion of claim 5 wherein the starch propionate is an oxidized starch propionate.
Claim 10
Dependent Claim
14 words
The oil-in-water emulsion of claim 5 wherein the starch propionate is a modified starch.
Claim 11
Dependent Claim
148 words
A process for the preparation of an encapsulated lipid or oil in powdered form comprising the steps: A. preparing a stabilized lipid or oil-in-water emulsion by homogenizing a mixture comprising: 1. a continuous aqueous phase, 2. a discontinuous phase comprising a lipid or oil, 3. an enrobing or encapsulating material for said lipid or oil comprising a starch hydrolysate having a D.E. less than about 20, and 4. an emulsifying agent for maintaining stability to said lipid or oil-in-water emulsion consisting essentially of a starch ester of at least one aliphatic carboxylic acid having 2 - 4 carbon atoms, said starch ester having a degree of substitution of from about 0.05 to about 1.0, said starch ester being present in an amount ranging from about 1.0% to about 30%; and B. spray drying said stabilized lipid or oil-in-water emulsion to thereby form a free-flowing lipid or oil powder.
Claim 12
Dependent Claim
148 words
A process for the preparation of an encapsulated lipid or oil in powdered form comprising the steps: A. preparing a stabilized lipid or oil-in-water emulsion by homogenizing a mixture comprising: 1. a continuous aqueous phase, 2. a discontinuous phase comprising a lipid or oil, 3. an enrobing or encapsulating material for said lipid or oil comprising a starch hydrolysate having a D.E. less than about 20, and 4. an emulsifying agent for maintaining stability to said lipid or oil-in-water emulsion consisting essentially of a starch ester of at least one aliphatic carboxylic acid having 2 - 4 carbon atoms, said starch ester having a degree of substitution of from about 0.05 to about 1.0, said starch ester being present in an amount ranging from about 1.0% to about 30%; and B. spray drying said stabilized lipid or oil-in-water emulsion to thereby form a free-flowing lipid or oil powder.
Claim 13
Dependent Claim
21 words
The process of claim 10, wherein the discontinuous phase is present in an amount ranging from about 5% to about 30%.
Claim 14
Dependent Claim
14 words
The process of claim 10, wherein the discontinuous phase is an essential flavor oil.
Claim 15
Dependent Claim
32 words
The process of claim 10, wherein said discontinuous phase is a lipid selected from the group consisting of coconut oil, corn oil, cottonseed oil, soybean oil, olive oil and their hydrogenation products.
Claim 16
Dependent Claim
15 words
The process of claim 10, wherein the starch ester is a thin boiling starch propionate.
Claim 17
Dependent Claim
14 words
The process of claim 10, wherein the starch ester is an oxidized starch propionate.
Claim 18
Dependent Claim
12 words
An encapsulated lipid or oil produced by the process of claim 10.
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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) | 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 |