US4041189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of edible protein containing substances
Assignee: Ranks Hovis McDougall Ltd
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Filing: 1974-09-18
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Granted: 1977-08-09
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Expires: 1994-09-18
Abstract
Abstract A process for reducing the nucleic acid content in the production of an edible protein-containing substance which comprises maintaining a grown non-toxic microfungus of the class Fungi Imperfecti, preferably a strain of Fusarium graminearum Schwabe, in a suspension at a pH between 4.7 and 7.0 and at a temperature between 55 DEG and 72 DEG C. for a time of at least 60 seconds.
Inventors
- 👤 Peter John Towersey
- 👤 John Longton
- 👤 Geoffrey Norman Cockram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:13
CPC Classifications
A; A23; A23J; A23J3/00; A23J3/20; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/929; Y10S530/00; Y10S530/82; Y10S530/821; Y10S530/823
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
71 words
A process for reducing the nucleic acid content in the production of an edible protein-containing substance which comprises maintaining cells of a grown non-toxic strain of Fusarium microfungus of the class Fungi Imperfecti in a suspension at a pH between 4.7 and 7.0 and at a temperature between 55° and 72° C for a time of at least 60 seconds and sufficient to reduce the nucleic acid content to below 4%.
Claim 2
Dependent Claim
71 words
A process for reducing the nucleic acid content in the production of an edible protein-containing substance which comprises maintaining cells of a grown non-toxic strain of Fusarium microfungus of the class Fungi Imperfecti in a suspension at a pH between 4.7 and 7.0 and at a temperature between 55° and 72° C for a time of at least 60 seconds and sufficient to reduce the nucleic acid content to below 4%.
Claim 3
Dependent Claim
24 words
A process as claimed in claim 1 wherein the strain of Fusarium is a strain of Fusarium graminearum Schwabe, Fusarium oxysporum or Fusarium solani.
Claim 4
Dependent Claim
36 words
A process as claimed in claim 2 wherein the strain of Fusarium graminearum Schwabe is our strain of Fusarium graminearum Schwabe deposited with the Commonwealth Mycological Institute and assigned the number IMI 145425 (A.T.C.C. No. 20334).
Claim 5
Dependent Claim
49 words
A process as claimed in claim 1, wherein cells of the grown non-toxic microfungus are held at a pH of 8.5 at a selected isothermal temperature of 65° C. for a duration of between 1/2 minute and 5 minutes before adjustment of the pH to between 4.7 and 7.
Claim 6
Dependent Claim
67 words
A process as claimed in claim 1 wherein the temperature of cells of the grown non-toxic microfungus in the suspension is raised rapidly to a given temperature within the range of 55° and 72° C. and substantially the same temperature is subsequently maintained for a period of 5 to 60 minutes whereby a highly proteinaceous material having a reduced level of RNA of below 4% is obtained.
Claim 7
Dependent Claim
48 words
A process as claimed in claim 1 wherein the grown non-toxic strain of Fusarium microfungus of the class Fungi Imperfecti is maintained in a suspension at a pH between 4.7 and 7.0 and at a temperature between 55 and 68° C. for between 200 seconds and 30 minutes.
Claim 8
Dependent Claim
59 words
An edible protein-containing substance obtained by maintaining cells of a grown non-toxic strain of Fusarium microfungus of the class Fungi Imperfecti in a suspension at a pH between 4.7 and 7.0 and at a temperature between 55 and 72° C for a time of at least 60 seconds and sufficient to reduce the nucleic acid content to below 4%.
Claim 9
Dependent Claim
59 words
An edible protein-containing substance obtained by maintaining cells of a grown non-toxic strain of Fusarium microfungus of the class Fungi Imperfecti in a suspension at a pH between 4.7 and 7.0 and at a temperature between 55 and 72° C for a time of at least 60 seconds and sufficient to reduce the nucleic acid content to below 4%.
Claim 10
Dependent Claim
36 words
An edible protein-containing substance as claimed in claim 7 wherein the strain of Fusarium is our strain of Fusarium graminearum Schwabe deposited with the Commonwealth Mycological Institute and assigned the number IMI 145425 (A.T.C.C. No. 20334).
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) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |