GB1190687A - Process for producing L-Threonine - Google Patents
Process for producing L-ThreonineInfo
- Publication number
- GB1190687A GB1190687A GB6043568A GB6043568A GB1190687A GB 1190687 A GB1190687 A GB 1190687A GB 6043568 A GB6043568 A GB 6043568A GB 6043568 A GB6043568 A GB 6043568A GB 1190687 A GB1190687 A GB 1190687A
- Authority
- GB
- United Kingdom
- Prior art keywords
- threonine
- growth
- requisite
- nutrient medium
- growth requisite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/04—Alpha- or beta- amino acids
- C12P13/08—Lysine; Diaminopimelic acid; Threonine; Valine
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
1,190,687. L-Threonine by fermentation. KYOWA HAKKO KOGYO CO. Ltd. 19 Dec., 1968, No. 60435/68. Heading C2C. L-Threonine is produced by culturing an L-threonine-producing micro-organism of the genus Aerobacter, Serratia, Arthrobacter, Paracolobactrum, Erwinia, Proteus, Brevibacterium, Corynebacterium, Pseudomonas, Xanthomonas, Microbacterium, Bacillus, Nocardia, Streptomyces, Agrobacterium, Azotobacter, and Rhizobium, and which requires at least two of the compounds isoleucine, lysine, methionine and diaminopimelic acid as a growth requisite, under aerobic conditions in an aqueous nutrient medium containing an optimum amount or less of said growth requisite and accumulating L-threonine in the resultant liquor. The process is normally effected at 20-40‹ C., at pH 4À5- 9À5, and the nutrient medium preferably contains from 5 mg./l. to 1000 mg/l. of each growth requisite. Examples detail the preparation of suitable mutants having the necessary growth requirements from a species of each of the 17 genera mentioned above and their use in the production of L-threonine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB6043568A GB1190687A (en) | 1968-12-19 | 1968-12-19 | Process for producing L-Threonine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB6043568A GB1190687A (en) | 1968-12-19 | 1968-12-19 | Process for producing L-Threonine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1190687A true GB1190687A (en) | 1970-05-06 |
Family
ID=10485597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6043568A Expired GB1190687A (en) | 1968-12-19 | 1968-12-19 | Process for producing L-Threonine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1190687A (en) |
-
1968
- 1968-12-19 GB GB6043568A patent/GB1190687A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
429A | Application made for amendment of specification (sect. 29/1949) | ||
429C | Application to amend the specification withdrawn (sect. 29/1949) | ||
PCNP | Patent ceased through non-payment of renewal fee |