US4113716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing improved soy protein materials
Assignee: Ajinomoto Co Inc
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Filing: 1977-04-25
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Granted: 1978-09-12
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Expires: 1997-04-25
Abstract
Abstract A process particularly designed to further improve soy protein previously denatured by superheating treatment or alcohol extraction comprises heating an aqueous slurry of the denatured, defatted soybean flake material under prescribed conditions. Nitrogen values, flavor and color are improved.
Inventors
- 👤 Teruo Gomi
- 👤 Yuji Hisa
- 👤 Takahiko Soeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:30
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/14; A23L; A23L11/00; A23L11/30; A23L11/31
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
102 words
A process for preparing soy protein material having improved solubility which comprises preparing an aqueous slurry of denatured defatted soybean flake material, wherein said aqueous slurry is adjusted to pH 6.5 to 9; heating said aqueous slurry to a temperature in the range of about 110° to 140° C; and subsequently retaining the heated slurry at a temperature in said range for from 2 seconds to 3 minutes; wherein the NSI of said denatured defatted soybean flake material is not more than 70%, and the NSI of the soy protein in the resultant heated and retained slurry is not less than 75%.
Claim 2
Dependent Claim
102 words
A process for preparing soy protein material having improved solubility which comprises preparing an aqueous slurry of denatured defatted soybean flake material, wherein said aqueous slurry is adjusted to pH 6.5 to 9; heating said aqueous slurry to a temperature in the range of about 110° to 140° C; and subsequently retaining the heated slurry at a temperature in said range for from 2 seconds to 3 minutes; wherein the NSI of said denatured defatted soybean flake material is not more than 70%, and the NSI of the soy protein in the resultant heated and retained slurry is not less than 75%.
Claim 3
Dependent Claim
26 words
The process of claim 1, wherein said denatured defatted soybean flake material is obtained by subjecting defatted soybean flake material to superheating treatment or alcohol extraction.
Claim 4
Dependent Claim
28 words
The process of claim 2, wherein the weight ratio of said flake material to water in said aqueous slurry is between 1 to 5 and 1 to 15.
Claim 5
Dependent Claim
30 words
The process of claim 3, wherein said aqueous slurry prior to heating is permitted to stand for a period of time sufficient to extract water-soluble materials from said flake material.
Claim 6
Dependent Claim
22 words
The process of claim 1, which further comprises separating insoluble materials from said resultant heated and retained slurry to obtain a solution.
Claim 7
Dependent Claim
11 words
The process of claim 5, which further comprises drying said solution.
Claim 8
Dependent Claim
45 words
The process of claim 5, which further comprises adjusting said solution to the pH of about the isoelectric point of the protein to precipitate the protein; separating said precipitated protein from the aqueous phase, dispersing said precipitated protein in water, and neutralizing the resultant mixture.
Claim 9
Dependent Claim
12 words
The process of claim 7, which further comprises drying said neutralized mixture.
Claim 10
Dependent Claim
14 words
The process of claim 1, which further comprises drying said heated and retained slurry.
Claim 11
Dependent Claim
51 words
The process of claim 1, which further comprises adjusting said heated and retained slurry to the pH of about the isoelectric point of the protein to precipitate the protein; separating total solids after the precipitation step from the aqueous phase, dispersing said total solids in water, and neutralizing the resultant mixture.
Claim 12
Dependent Claim
12 words
The process of claim 10, which further comprises drying said neutralized mixture.
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) | 1981-09-11 | 1982-03-13 | 1982-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-11 | 1986-03-13 | 1986-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-11 | 1990-03-13 | 1990-09-12 | $7700.00 | Window Closed / Lapsed |