JPS5721397A - Preparation of d-mannose - Google Patents
Preparation of d-mannoseInfo
- Publication number
- JPS5721397A JPS5721397A JP9621180A JP9621180A JPS5721397A JP S5721397 A JPS5721397 A JP S5721397A JP 9621180 A JP9621180 A JP 9621180A JP 9621180 A JP9621180 A JP 9621180A JP S5721397 A JPS5721397 A JP S5721397A
- Authority
- JP
- Japan
- Prior art keywords
- mannose
- decomposed
- ion exchange
- exchange resin
- desalting
- 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
- Saccharide Compounds (AREA)
Abstract
PURPOSE: To obtain D-mannose useful as a raw material for D-mannitol or a culture medium for microorganisms in high purity and yield, by decomposing an alkali metallic hydrogensulfite adduct of D-mannose with hydrogen peroxide.
CONSTITUTION: An aqueous solution of an alkali metallic hydrogensulfite adduct of D-mannose expressed by formula I (M is Na or K) is decomposed with H2O2 in the presence of an alkaline earth metallic hydroxide, e.g. Ca(OH)2, while keeping the pH at about neutral at 60°C or below, and the decomposed solution is purified by an ion exchange resin to give the aimed compound expressed by formula II. The addition and desalting of the alkaline earth metallic hydroxide may be carried out after the decomposing reaction or the purifying treatment with the ion exchange resin. The D-mannose can be completely decomposed without isomerization, polymerization or decomposition. The desalting and the purification with the ion exchange resin can be completely carried out due to no sulfite present in the decomposed solution.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9621180A JPS5721397A (en) | 1980-07-16 | 1980-07-16 | Preparation of d-mannose |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9621180A JPS5721397A (en) | 1980-07-16 | 1980-07-16 | Preparation of d-mannose |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5721397A true JPS5721397A (en) | 1982-02-04 |
JPS6321678B2 JPS6321678B2 (en) | 1988-05-09 |
Family
ID=14158905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9621180A Granted JPS5721397A (en) | 1980-07-16 | 1980-07-16 | Preparation of d-mannose |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5721397A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS633094A (en) * | 1986-06-23 | 1988-01-08 | Ube Ind Ltd | Heat recovery from ash slurry |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001009366A1 (en) * | 1999-08-02 | 2001-02-08 | Japan Science And Technology Corporation | Process for enzymatically producing mannose |
-
1980
- 1980-07-16 JP JP9621180A patent/JPS5721397A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS633094A (en) * | 1986-06-23 | 1988-01-08 | Ube Ind Ltd | Heat recovery from ash slurry |
JPH048478B2 (en) * | 1986-06-23 | 1992-02-17 |
Also Published As
Publication number | Publication date |
---|---|
JPS6321678B2 (en) | 1988-05-09 |
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