GB795178A - Preparation of amino acids - Google Patents
Preparation of amino acidsInfo
- Publication number
- GB795178A GB795178A GB762956A GB762956A GB795178A GB 795178 A GB795178 A GB 795178A GB 762956 A GB762956 A GB 762956A GB 762956 A GB762956 A GB 762956A GB 795178 A GB795178 A GB 795178A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glutamic acid
- fermentation
- prepared
- amino acids
- tryptophane
- 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
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
Glutamic acid, tryptophane or lysine are prepared by cultivating a strain of Aspergillus terreus under an aerobic condition in an aqueous nutrient fermentation medium containing a source of available nitrogen. The source of available nitrogen may be added at the beginning or during the fermentation and may be inorganic or organic in character, e.g. amino acids, proteins, ammonium salts such as ammonium sulphate and nitrate, nitrates and urea may be used. The process is preferably operated at a pH of about 5.5 to about 8.8, and a temperature of approximately 25 DEG to 32 DEG C. may be used. After the nutrient medium has been prepared, it may be adjusted to a pH of from about 5.5 to 8 before the fermentation. The amino-acids may be recovered from the fermentation broth by acid hydrolysis-particularly in the case of glutamic acid, or glutamic acid may be recovered through the intermediate formation of the hydrochloride, calcium or sodium salt. In the examples, glutamic acid, tryptophane and lysine are prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB762956A GB795178A (en) | 1956-03-12 | 1956-03-12 | Preparation of amino acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB762956A GB795178A (en) | 1956-03-12 | 1956-03-12 | Preparation of amino acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB795178A true GB795178A (en) | 1958-05-21 |
Family
ID=22151068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB762956A Expired GB795178A (en) | 1956-03-12 | 1956-03-12 | Preparation of amino acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB795178A (en) |
-
1956
- 1956-03-12 GB GB762956A patent/GB795178A/en not_active Expired
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