JPS56134992A - Suppressing method of decomposition of serine - Google Patents
Suppressing method of decomposition of serineInfo
- Publication number
- JPS56134992A JPS56134992A JP3619780A JP3619780A JPS56134992A JP S56134992 A JPS56134992 A JP S56134992A JP 3619780 A JP3619780 A JP 3619780A JP 3619780 A JP3619780 A JP 3619780A JP S56134992 A JPS56134992 A JP S56134992A
- Authority
- JP
- Japan
- Prior art keywords
- serine
- ammonium
- solution containing
- decomposition
- decomposing
- 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.)
- Pending
Links
Landscapes
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
PURPOSE: To prevent the decomposition of raw material serine in a reaction solution containing an enzyme capable of decomposing the serine, by the presence of a specific amount of ammonia ions in the reaction solution containing the serine.
CONSTITUTION: Ammonia ions in a concentration of 0.1mol/l or more and 2mol/l or less, are present in an aqueous solution containing L-serine, D-serine or DL-serine in the presence of a cultivated microorganism containing an enzyme capable of decomposing the L-serine and (or) D-serine or an extract from the cultivated microbial cell, e.g. the genus Escherichia, Pseudomonas or Proteus. Various inorganic or organic ammonium salts, e.g. ammonium chloride, ammonium sulfate, ammonium phosphate or ammonium carbonate, are used as the compound to give the ammonium ions.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3619780A JPS56134992A (en) | 1980-03-24 | 1980-03-24 | Suppressing method of decomposition of serine |
GB8013152A GB2048266B (en) | 1979-05-09 | 1980-04-22 | Enzymatic preparation of l-tryptophan |
US06/145,267 US4335209A (en) | 1979-05-09 | 1980-04-25 | Process for preparation of L-tryptophan by enzyme |
CA350,695A CA1128443A (en) | 1979-05-09 | 1980-04-25 | Process for the preparation of l-tryptophan by enzyme |
CH332780A CH642947A5 (en) | 1979-05-09 | 1980-04-30 | PROCESS FOR THE ENZYMATIC PREPARATION OF L-TRYPTOPHANE. |
AU57979/80A AU530435B2 (en) | 1979-05-09 | 1980-05-01 | Enzymatic preparation of l-tryptophan |
IT48605/80A IT1145337B (en) | 1979-05-09 | 1980-05-07 | PROCEDURE FOR ENZYMATICALLY PREPARING L-TRIPTOFANO |
NL8002603A NL8002603A (en) | 1979-05-09 | 1980-05-07 | PROCESS FOR THE ENZYMATIC PREPARATION OF L-TRYPTOPHANE. |
FR8010249A FR2456140A1 (en) | 1979-05-09 | 1980-05-08 | ENZYMATIC PREPARATION OF L-TRYPTOPHANE |
DE3017861A DE3017861C2 (en) | 1979-05-09 | 1980-05-09 | Process for the enzymatic production of L-tryptophan |
MX808806U MX6037E (en) | 1979-05-09 | 1980-05-09 | IMPROVED ENZYMATIC PROCEDURE FOR THE PREPARATION OF L-TRYPTOPHANE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3619780A JPS56134992A (en) | 1980-03-24 | 1980-03-24 | Suppressing method of decomposition of serine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56134992A true JPS56134992A (en) | 1981-10-22 |
Family
ID=12462996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3619780A Pending JPS56134992A (en) | 1979-05-09 | 1980-03-24 | Suppressing method of decomposition of serine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56134992A (en) |
-
1980
- 1980-03-24 JP JP3619780A patent/JPS56134992A/en active Pending
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