US3943038A
Expired / Lapsed
US
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Method for producing amino acids by culturing hydrogen-oxidizing bacteria
Assignee: Ajinomoto Co Inc
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Filing: 1974-08-13
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Granted: 1976-03-09
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Expires: 1994-08-13
Abstract
Abstract Amino acids are produced by culturing hydrogen-oxidizing bacteria of the genus Arthrobacter, Brevibacterium and Mycobacterium in an aqueous culture medium in the presence of oxygen, hydrogen and carbon dioxide.
Inventors
- 👤 Yasushi Morinaga
- 👤 Ayaaki Ishizaki
- 👤 Shin-Ichiro Otsuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:22
CPC Classifications
C; C12; C12P; C12P13/00; C12P13/04; C12N; C12N1/00; C12N1/20; C12N1/38; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/83; Y10S435/84; Y10S435/863; Y10S435/866
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
77 words
A method for producing amino acids which comprises culturing a microorganism selected from the group consisting of brevibacterium sp. FERM P-2234, mycobacterium sp. FERM P-2235, arthrobacter sp. FERM P-2638, alcaligenes eutrophus ATCC 17697, pseudomonas facilis ATCC 11228 and pseudomonas ruhlaudii ATCC 15749 in an aqueous culture medium containing at least a nitrogen source and inorganic salt and in the presence of oxygen, hydrogen and carbon dioxide, and recovering the resulting produced amino acids from the culture medium.
Claim 2
Independent Claim
77 words
A method for producing amino acids which comprises culturing a microorganism selected from the group consisting of brevibacterium sp. FERM P-2234, mycobacterium sp. FERM P-2235, arthrobacter sp. FERM P-2638, alcaligenes eutrophus ATCC 17697, pseudomonas facilis ATCC 11228 and pseudomonas ruhlaudii ATCC 15749 in an aqueous culture medium containing at least a nitrogen source and inorganic salt and in the presence of oxygen, hydrogen and carbon dioxide, and recovering the resulting produced amino acids from the culture medium.
Claim 3
Dependent Claim
17 words
A method as set forth in claim 1, wherein said microorganism is Arthrobacter sp. FERM P 2638.
Claim 4
Dependent Claim
17 words
A method as set forth in claim 1, wherein said microorganism is Brevibacterium sp. FERM P 2234.
Claim 5
Dependent Claim
17 words
A method as set forth in claim 1, wherein said microorganism is Mycobacterium sp. FERM P 2235.
Claim 6
Dependent Claim
33 words
A method as set forth in claim 1, wherein said amino acids include lysine, histidine, arginine, aspartic acid, threonine, serine, glutamic acid, proline, glycine, alanine, cysteine, valine, isoleucine, leucine, tyrosine, phenylalanine, or methionine.
Claim 7
Dependent Claim
14 words
A method as set forth in claim 1, wherein said culture medium contains penicillin.
Claim 8
Dependent Claim
16 words
A method as set forth in claim 1 wherein said microorganism is alcaligenes eutrophus ATCC 17697.
Claim 9
Dependent Claim
16 words
A method as set forth in claim 1 wherein said microorganism is pseudomonas facilis ATCC 11228.
Claim 10
Dependent Claim
16 words
A method as set forth in claim 1 wherein said microorganism is pseudomonas ruhlaudii ATCC 15749.
References Cited (Backward Citations)
US3562110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |