US3887434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microbiological production of invertase
Assignee: Bayer AG
•
Filing: 1973-05-24
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Granted: 1975-06-03
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Expires: 1993-05-24
Abstract
Abstract The disclosure relates to a novel process for the microbiological production of the enzyme invertase by culturing yeast strains of the variety Saccharmyces carlsbergensis Hansen under aerobic conditions in an aqueous nutrient medium.
Inventors
- 👤 Werner Frommer
- 👤 Erich Rauenbusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:23
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/24; C12N9/2402; C12N9/2405; C12N9/2408; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/94; Y10S435/941
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
32 words
A PROCESS FOR THE MICROBIOLOGICAL PRODUCTION OF INVERTASE WHICH COMPRISES CULTURING A STRAIN OF THE MICROORGANIM SACCHAROMYCES CARLSBERGENSIS HANSEN CBS 268.72, 269.72 AND 270.72 UNDER AEROBIC CONDITIONS IN AN AQUEOUS NUTRIENT MEDIUM.
Claim 2
Dependent Claim
32 words
A PROCESS FOR THE MICROBIOLOGICAL PRODUCTION OF INVERTASE WHICH COMPRISES CULTURING A STRAIN OF THE MICROORGANIM SACCHAROMYCES CARLSBERGENSIS HANSEN CBS 268.72, 269.72 AND 270.72 UNDER AEROBIC CONDITIONS IN AN AQUEOUS NUTRIENT MEDIUM.
Claim 3
Dependent Claim
32 words
A process for the microbiological production of invertase which comprises culturing a strain of the microorganism Saccharomyces carlsbergensis Hansen CBS 268.72, 269.72 and 270.72 under aerobic conditions in an aqueous nutrient medium.
Claim 4
Dependent Claim
32 words
A process for the microbiological production of invertase which comprises culturing a strain of the microorganism Saccharomyces carlsbergensis Hansen CBS 268.72, 269.72 and 270.72 under aerobic conditions in an aqueous nutrient medium.
Claim 5
Dependent Claim
16 words
The process of claim 1 wherein the strain of microorganism is Saccharomyces carlsbergensis Hansen CBS 268.72.
Claim 6
Dependent Claim
16 words
The process of claim 1 wherein the strain of microorganism is Saccharomyces carlsbergensis Hansen CBS 269.72.
Claim 7
Dependent Claim
16 words
The process of claim 1 wherein the strain of microorganism is Saccharomyces carlsbergensis Hansen CBS 270.72.
Claim 8
Dependent Claim
14 words
The process of claim 1 wherein the aqueous nutrient medium contains source of carbon.
Claim 9
Dependent Claim
24 words
The process of claim 5 wherein the source of carbon is a member of the group consisting of sucrose, D-glucose, D-fructose, sorbitol and D-xylose.
Claim 10
Dependent Claim
12 words
The process of claim 5 wherein the source of carbon is sucrose.
Claim 11
Dependent Claim
12 words
The process of claim 5 wherein the source of carbon is D-glucose.
Claim 12
Dependent Claim
12 words
The process of claim 5 wherein the source of carbon is D-fructose.
References Cited (Backward Citations)
DE1264374B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |