Patent US4029825A successfully refreshed from Google Patents.
US4029825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of egg white substitute from whey
Assignee: Stauffer Chemical Co
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Filing: 1975-05-30
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Granted: 1977-06-14
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Expires: 1995-05-30
Abstract
Abstract Egg white substitutes can be prepared from cheese or vegetable whey by first reacting it with sodium lauryl sulfate to form a complex which precipitates in acidic medium, and, after removal of most of the sodium lauryl sulfate, using the product as a replacer for natural egg white in food preparations.
Inventors
- 👤 Pei K. Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:25
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/14; A23J1/20; A23J1/205; A23J3/00; A23J3/04; A23J3/08; A23J3/10; A23V; A23V2002/00; A23V2300/00; A23V2300/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
53 words
A process for forming an egg white substitute which comprises: a. combining liquid whey with an effective amount of sodium lauryl sulfate to form a whey protein-sodium lauryl sulfate complex which precipitates from solution; and b. reducing the sodium lauryl sulfate content of the complex to no higher than about 1.0% by weight.
Claim 2
Dependent Claim
53 words
A process for forming an egg white substitute which comprises: a. combining liquid whey with an effective amount of sodium lauryl sulfate to form a whey protein-sodium lauryl sulfate complex which precipitates from solution; and b. reducing the sodium lauryl sulfate content of the complex to no higher than about 1.0% by weight.
Claim 3
Dependent Claim
13 words
A process as claimed in claim 1 wherein the whey is cheese whey.
Claim 4
Dependent Claim
13 words
A process as claimed in claim 1 wherein the whey is vegetable whey.
Claim 5
Dependent Claim
22 words
A process as claimed in claim 2 wherein the cheese whey is selected from the group consisting of acid and sweet wheys.
Claim 6
Dependent Claim
48 words
A process as claimed in claim 2 wherein the cheese whey is the first fraction from the product obtained by passing partially delactosed cheese whey mother liquor through a bed of a molecular sieve resin, said fraction comprising 40- 80% by weight protein. 10-30% lactose and 3-15% ash.
Claim 7
Dependent Claim
35 words
A process as claimed in claim 2 wherein the amount of sodium lauryl sulfate added to the cheese whey ranges from about 0.10 to 0.50% by weight based on the volume of liquid cheese whey.
Claim 8
Dependent Claim
38 words
A process as claimed in claim 3 wherein the weight ratio of sodium lauryl sulfate which is added to the vegetable whey ranges from about 0.30 and 0.60 based on the weight of protein in the vegetable whey.
Claim 9
Dependent Claim
28 words
A process as claimed in claim 1 wherein the sodium lauryl sulfate content is reduced by passing the complex through an ion exchange resin in the hydroxy form.
Claim 10
Dependent Claim
38 words
A process as claimed in claim 1 which further comprises addition of about 0.1 to 5% by weight of a compound comprising a divalent metal cation to the complex containing not more than about 0.1% sodium lauryl sulfate.
Claim 11
Dependent Claim
14 words
A process as claimed in claim 9 wherein the divalent metal cation is calcium.
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) | 1980-06-13 | 1980-12-13 | 1981-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-13 | 1984-12-13 | 1985-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-13 | 1988-12-13 | 1989-06-14 | $7700.00 | Window Closed / Lapsed |