JPS5786295A - Preparation of l-glutamic acid by fermentation method - Google Patents
Preparation of l-glutamic acid by fermentation methodInfo
- Publication number
- JPS5786295A JPS5786295A JP16218280A JP16218280A JPS5786295A JP S5786295 A JPS5786295 A JP S5786295A JP 16218280 A JP16218280 A JP 16218280A JP 16218280 A JP16218280 A JP 16218280A JP S5786295 A JPS5786295 A JP S5786295A
- Authority
- JP
- Japan
- Prior art keywords
- glutamic acid
- cultivation
- fermentation method
- culture medium
- 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
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
PURPOSE: To improve the yield of L-glutamic acid by the fermentation method, by adding ethanol to a culture medium to give a specific ethanolic concentration in the culture medium in the first half and the second half stages of the cultivation.
CONSTITUTION: L-Glutamic acid is produced from ethanol as a raw material by using bacteria, belonging to the genus Corynebacterium, etc., and capable of producing the L-glutamic acid by the fermentation method. In the process, any point between a time when the number of the bacteria to be used reaches 80% of that at the completion of the logarithmic growth phase and the end point of the logarithmic growth phase is taken as a boundary, and the cultivation is carried out while adding ethanol to a culture medium to give the ethanolic concentration in the first half stage in the cultivation of 0.05W1.5 g/dl and the ethanolic concentration in the second half stage in the cultivation of 2.5W5.0 g/dl. After the completion of the cultivation, the L-glutamic acid is recovered from the culture fluid.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16218280A JPS5786295A (en) | 1980-11-18 | 1980-11-18 | Preparation of l-glutamic acid by fermentation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16218280A JPS5786295A (en) | 1980-11-18 | 1980-11-18 | Preparation of l-glutamic acid by fermentation method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5786295A true JPS5786295A (en) | 1982-05-29 |
JPS6236678B2 JPS6236678B2 (en) | 1987-08-07 |
Family
ID=15749566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16218280A Granted JPS5786295A (en) | 1980-11-18 | 1980-11-18 | Preparation of l-glutamic acid by fermentation method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5786295A (en) |
-
1980
- 1980-11-18 JP JP16218280A patent/JPS5786295A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6236678B2 (en) | 1987-08-07 |
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