US4064119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble soy protein
Assignee: Nestec SA
•
Filing: 1976-03-12
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Granted: 1977-12-20
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Expires: 1996-03-12
Abstract
Abstract A process for the preparation of a soluble fraction of soya proteins which comprises at least partially extracting the proteins present in soya in aqueous medium at a pH value below the isoelectric point of soya proteins to obtain an acid extract of soya proteins, and neutralizing the acid extract in a time of less than about 60 seconds by the addition of alkali in a concentration of higher than about 0.1 N.
Inventors
- 👤 Jan Kruseman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:55
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
A process for the preparation of a soluble fraction of soya proteins which comprises treating defatted soya flour in aqueous medium at a pH value below the isoelectric point of soya protein to obtain an acid extract of soya proteins containing at least about 50% by weight of the total proteins of the starting material, and neutralising the acid extract in a time of less than about 60 seconds by the addition of alkali in a concentration of higher than about 0.1 N.
Claim 2
Dependent Claim
83 words
A process for the preparation of a soluble fraction of soya proteins which comprises treating defatted soya flour in aqueous medium at a pH value below the isoelectric point of soya protein to obtain an acid extract of soya proteins containing at least about 50% by weight of the total proteins of the starting material, and neutralising the acid extract in a time of less than about 60 seconds by the addition of alkali in a concentration of higher than about 0.1 N.
Claim 3
Dependent Claim
19 words
A process as claimed in claim 1, wherein the extract is neutralised at a temperature below about 50° C.
Claim 4
Dependent Claim
18 words
A process as claimed in claim 1, wherein the extract is neutralised with sodium hydroxide or potassium hydroxide.
Claim 5
Dependent Claim
19 words
A process as claimed in claim 1, wherein the proteins are extracted in a dilute aqueous phosphoric acid solution.
Claim 6
Dependent Claim
33 words
A process as claimed in claim 1, wherein the acid extract is neutralised in less than about 10 seconds by the addition of alkali in a concentration of higher than about 1 N.
Claim 7
Dependent Claim
33 words
A process as claimed in claim 1, wherein the acid extract is neutralised in less than about 2 seconds by the addition of alkali in a concentration of higher than about 0.5 N.
Claim 8
Dependent Claim
33 words
A process as claimed in claim 1, wherein the acid extract is neutralised in less than about 20 seconds by the addition of alkali in a concentration of higher than about 5 N.
Claim 9
Dependent Claim
16 words
A soluble fraction of soya proteins when prepared by a process as claimed in claim 1.
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) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |