JPS57132882A - Preparation of l-alanine and d-aspartic acid - Google Patents
Preparation of l-alanine and d-aspartic acidInfo
- Publication number
- JPS57132882A JPS57132882A JP2075381A JP2075381A JPS57132882A JP S57132882 A JPS57132882 A JP S57132882A JP 2075381 A JP2075381 A JP 2075381A JP 2075381 A JP2075381 A JP 2075381A JP S57132882 A JPS57132882 A JP S57132882A
- Authority
- JP
- Japan
- Prior art keywords
- aspartic acid
- microorganism
- alanine
- acid
- preparation
- 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.)
- Granted
Links
Landscapes
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
PURPOSE: To prepare L-alanine and/or D-aspartic acid with a microorganism, by inactivating only the alanine racemase activity of the microorganism having the L-aspartic acid β-decarboxylating enzymic activity with the acid treatment.
CONSTITUTION: A microorganism, e.g. pseudomonas dacunhae IAM-1152, or an immobilized microorganism, having the L-aspartic acid β-decarboxylating enzymic activity is brought into contact with an acid, e.g. acetic, lactic or hydrochloric acid, at a pH of 3W6, preferably 4W5.5, to inactivate only the alanine racemase activity of the microorganism selectively. L-aspartic acid, DL- aspartic acid or a salt thereof is then reacted with the microorganism.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2075381A JPS57132882A (en) | 1981-02-13 | 1981-02-13 | Preparation of l-alanine and d-aspartic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2075381A JPS57132882A (en) | 1981-02-13 | 1981-02-13 | Preparation of l-alanine and d-aspartic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57132882A true JPS57132882A (en) | 1982-08-17 |
JPH0428355B2 JPH0428355B2 (en) | 1992-05-14 |
Family
ID=12035942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2075381A Granted JPS57132882A (en) | 1981-02-13 | 1981-02-13 | Preparation of l-alanine and d-aspartic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57132882A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5116743A (en) * | 1989-02-06 | 1992-05-26 | Mitsubishi Petrochemical Co., Ltd. | L-alanine production with two microorganisms having fumarase inactivity in a single reaction tank |
US5478733A (en) * | 1993-07-16 | 1995-12-26 | Kyowa Hakko Kogyo Co., Ltd. | Process for producing L-alanine by fermentation with arthrobacter |
-
1981
- 1981-02-13 JP JP2075381A patent/JPS57132882A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5116743A (en) * | 1989-02-06 | 1992-05-26 | Mitsubishi Petrochemical Co., Ltd. | L-alanine production with two microorganisms having fumarase inactivity in a single reaction tank |
US5478733A (en) * | 1993-07-16 | 1995-12-26 | Kyowa Hakko Kogyo Co., Ltd. | Process for producing L-alanine by fermentation with arthrobacter |
Also Published As
Publication number | Publication date |
---|---|
JPH0428355B2 (en) | 1992-05-14 |
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