US4034124A
Expired / Lapsed
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Emulsions
Assignee: Lever Brothers Co
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Filing: 1975-11-19
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Granted: 1977-07-05
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Expires: 1995-11-19
Abstract
Abstract Emulsions comprising an oil phase, an aqueous phase and a phospholipo-protein which has been subjected to a treatment with phospholipase A as emulsion stabilizer. These emulsions have an increased stability, especially heat stability, compared with emulsions which do not contain such a stabilizer.
Inventors
- 👤 Antonius Franciscus van Dam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:00
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/64; A23; A23D; A23D7/00; A23D7/003; A23D7/005; A23D7/0053; A23L; A23L27/00; A23L27/60; A61K8/02; A61K8/04; A61K8/06; A61K8/645; A61K8/96; A61K8/98; A61K8/981; A61K8/982; A61Q; A61Q5/00; A61Q5/02; C; C09; C09K; C09K23/00; C09K23/14; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06; Y10S516/924; Y10S516/927
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
35 words
A water and oil emulsion, which contains at least 0.05%, based on the quantity of oil, of a phospholipo-protein which has been modified by phospholipase A to a degree of conversion of at least 10%.
Claim 2
Dependent Claim
35 words
A water and oil emulsion, which contains at least 0.05%, based on the quantity of oil, of a phospholipo-protein which has been modified by phospholipase A to a degree of conversion of at least 10%.
Claim 3
Dependent Claim
13 words
An emulsion according to claim 1, in which water constitutes the continuous phase.
Claim 4
Dependent Claim
15 words
An emulsion according to claim 1, in which the phospholipo-protein containing material is whole egg.
Claim 5
Dependent Claim
15 words
An emulsion according to claim 1, in which the phospholipo-protein containing material is egg yolk.
Claim 6
Dependent Claim
19 words
An emulsion according to claim 4, in which the phospholipo-protein containing material is egg yolk substantially free from cholesterol.
Claim 7
Dependent Claim
24 words
An emulsion according to claim 1, in which substantially all of the phospholipo-protein present therein has been subjected to the treatment with phospholipase A.
Claim 8
Dependent Claim
21 words
An emulsion according to claim 1, in which 0.05-5% modified phospholipo-protein based on the oil content of the emulsion is present.
Claim 9
Dependent Claim
18 words
An emulsion according to claim 1, in which the degree of conversion of the phospholipo-protein is from 40-60%.
Claim 10
Dependent Claim
33 words
An oil-in-water emulsion according to claim 1, which contains: 0.2- 8.0% egg yolk modified to a degree of conversion between 10 and 90% 0.5- 98.3% water 0.15- 1.4% acetic acid 0.8- 83% oil.
Claim 11
Dependent Claim
17 words
An emulsion according to claim 9, in which part of the oil has been replaced by fat.
Claim 12
Dependent Claim
18 words
An emulsion according to claim 10, which contains 0.8- 60% of the olein fraction obtained by dry-fractionating palm-oil.
Claim 13
Dependent Claim
30 words
An emulsion according to claim 1, which contains: 1-6% ethanol 0.15-1.4% acetic acid 0.2-8% egg yolk modified to a degree of conversion between 10 and 90% 5-15% water 0.8-83% oil.
Claim 14
Dependent Claim
34 words
An emulsion according to claim 4, which comprises: 0.2-8.0% egg yolk modified to a degree of conversion between 10 and 90% and containing 0.02 to 0.18% cholesterol 0.5-98.3% water 0.15-1.4% acetic acid 0.8-83% oil.
Claim 15
Dependent Claim
52 words
A process for the preparation of the emulsion set forth in claim 1, comprising treating a phospholipo-protein with a phospholipase A derived from pancreatin by subjecting to a heat treatment at a temperature from 60° to 90° C. for a time sufficient to give a degree of conversion of at least 10%.
Claim 16
Dependent Claim
19 words
A process according to claim 14, in which the heat treatment is carried out for 3 to 15 minutes.
Claim 17
Dependent Claim
18 words
A process according to claim 14, in which the treatment is carried out at a pH from 4-6.5.
Claim 18
Dependent Claim
25 words
A process according to claim 14, in which per gram of phospholipo-protein 0.002-0.2 mg phospholipase A of specific activity of 70 U/mg protein is used.
References Cited (Backward Citations)
US3652397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |