JPS5653649A - Separation of l-cystine - Google Patents
Separation of l-cystineInfo
- Publication number
- JPS5653649A JPS5653649A JP13053179A JP13053179A JPS5653649A JP S5653649 A JPS5653649 A JP S5653649A JP 13053179 A JP13053179 A JP 13053179A JP 13053179 A JP13053179 A JP 13053179A JP S5653649 A JPS5653649 A JP S5653649A
- Authority
- JP
- Japan
- Prior art keywords
- cystine
- alkali
- amino acids
- accumulated
- mixture
- 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
Abstract
PURPOSE: To prepare the titled compound useful as a raw material of pharmaceuticals, in high purity, by treating a mixturf of L-cystine and other amino acids with less than equivalent amount, based on L-cystine, of an alkali and water, and neutralizing the L-cystine accumulated in the liquid phase.
CONSTITUTION: A mixture of L-cystine and other amino acids is mixed with wster, and then added with less than equivalent amount, based on L-cystine, of an alkali. By stirring the mixture, the L-cystine is accumulated in the alkaline solution and separated from the other amino acids left as a solid phase. The liquid phase is neutralized to obtain the objective L-cystine. The alkali is e.g. alkali metal hydroxide.
EFFECT: The separation is carried out with simple process, at low cost, and in high yield. It is industrially advantageous.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13053179A JPS5653649A (en) | 1979-10-09 | 1979-10-09 | Separation of l-cystine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13053179A JPS5653649A (en) | 1979-10-09 | 1979-10-09 | Separation of l-cystine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5653649A true JPS5653649A (en) | 1981-05-13 |
Family
ID=15036517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13053179A Pending JPS5653649A (en) | 1979-10-09 | 1979-10-09 | Separation of l-cystine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5653649A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH044506U (en) * | 1990-04-28 | 1992-01-16 |
-
1979
- 1979-10-09 JP JP13053179A patent/JPS5653649A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH044506U (en) * | 1990-04-28 | 1992-01-16 |
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