US3961080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for autolysis of yeast
Assignee: Kikkoman Corp
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Filing: 1973-10-03
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Granted: 1976-06-01
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Expires: 1993-10-03
Abstract
Abstract Yeasts are autolyzed to produce yeast extracts by adding sodium chloride and ethanol to active yeasts so as to make their concentrations 2 to 10 % (W/V) and 1 to 9 % (V/V) of the total volume of the autolytic reaction system respectively and thereafter subjecting said yeasts to autolysis. The thus obtained yeast extracts have a good flavour and palatability.
Inventors
- 👤 Hiroshi Sugimoto
- 👤 Hiroyuki Takeuchi
- 👤 Tamotsu Yokotsuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:11
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/06; C12N1/063
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
94 words
A process for producing a yeast extract food for humans having good flavour, palatability, and no bitterness comprising adding sodium chloride and ethanol to active bakers yeast and subjecting the resultant mixture to autolysis, said sodium chloride and ethanol being added in amounts such that their concentrations become about 2-10% (w/v) and about 1-9% (v/v) of the total volume of the autolytic reaction system, respectively, said active yeast and said concentrations of said sodium chloride and ethanol being selected such that the resultant autolysate is suitable for human consumption, palatable, and has no bitterness.
Claim 2
Dependent Claim
94 words
A process for producing a yeast extract food for humans having good flavour, palatability, and no bitterness comprising adding sodium chloride and ethanol to active bakers yeast and subjecting the resultant mixture to autolysis, said sodium chloride and ethanol being added in amounts such that their concentrations become about 2-10% (w/v) and about 1-9% (v/v) of the total volume of the autolytic reaction system, respectively, said active yeast and said concentrations of said sodium chloride and ethanol being selected such that the resultant autolysate is suitable for human consumption, palatable, and has no bitterness.
Claim 3
Dependent Claim
118 words
A process for producing a yeast extract food for humans having good flavour, palatability, and no bitterness comprising adding sodium chloride and ethanol to active yeast selected from the group consisting of Candia utilis, Saccharomyces disastaticus, Saccharomyces fragilis, Mycotorula japonica, Torulopsis xylinus, Debaryomyces hansenii, Debaryomyces kloeckeri, Pichia scolyti and Candia guilliermondii and subjecting the resulting mixture to autolysis, said sodium chloride and ethanol being added in amounts such that the concentrations become about 2-10% (w/v) and about 1-9% (v/v) of the total volume of the autolytic reaction system, respectively, said active yeast and said concentrations of said sodium chloride and ethanol being selected such that the resultant autolysate is suitable for human consumption, palatable, and has no bitterness.
Claim 4
Dependent Claim
118 words
A process for producing a yeast extract food for humans having good flavour, palatability, and no bitterness comprising adding sodium chloride and ethanol to active yeast selected from the group consisting of Candia utilis, Saccharomyces disastaticus, Saccharomyces fragilis, Mycotorula japonica, Torulopsis xylinus, Debaryomyces hansenii, Debaryomyces kloeckeri, Pichia scolyti and Candia guilliermondii and subjecting the resulting mixture to autolysis, said sodium chloride and ethanol being added in amounts such that the concentrations become about 2-10% (w/v) and about 1-9% (v/v) of the total volume of the autolytic reaction system, respectively, said active yeast and said concentrations of said sodium chloride and ethanol being selected such that the resultant autolysate is suitable for human consumption, palatable, and has no bitterness.
Claim 5
Dependent Claim
93 words
A process for producing a yeast extract food for humans having good flavour, palatability, and no bitterness comprising adding sodium chloride and ethanol to active yeast and subjecting the resultant mixture to autolysis, said sodium chloride and ethanol being added in amounts such that their concentrations become about 2-10% (w/v) and about 5-9% (v/v) of the total volume of the autolytic reaction system, respectively, said active yeast and said concentrations of said sodium chloride and ethanol being selected such that the resultant autolysate is suitable for human consumption, palatable, and has no bitterness.
Claim 6
Dependent Claim
93 words
A process for producing a yeast extract food for humans having good flavour, palatability, and no bitterness comprising adding sodium chloride and ethanol to active yeast and subjecting the resultant mixture to autolysis, said sodium chloride and ethanol being added in amounts such that their concentrations become about 2-10% (w/v) and about 5-9% (v/v) of the total volume of the autolytic reaction system, respectively, said active yeast and said concentrations of said sodium chloride and ethanol being selected such that the resultant autolysate is suitable for human consumption, palatable, and has no bitterness.
Claim 7
Dependent Claim
29 words
A process for producing yeast extracts according to claim 3 wherein said active yeast is a dead yeast having at least some intracellular enzymes capable of autolyzing the yeast.
Claim 8
Dependent Claim
30 words
A process for producing yeast extracts according to claim 3 wherein the active yeast is one member selected from the group consisting of saccharomyces cervisiae, saccharomyces carlsbergensis and candia utilis.
Claim 9
Dependent Claim
27 words
A process for producing yeast extracts according to claim 3 wherein the active yeast is one member selected from the group consisting of bakers and brewers yeast.
Claim 10
Dependent Claim
35 words
A process for producing yeast extracts according to claim 3 wherein the autolysis is carried out for at least four hours at a temperature of 30°C. to 70°C. at a pH of 3.0 to 7.0.
Claim 11
Dependent Claim
17 words
A process for producing yeast extracts according to claim 3 wherein said autolysis is conducted at 40°C.
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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |