JPS57141401A - Production of pullulan with narrowed molecular weight distribution - Google Patents
Production of pullulan with narrowed molecular weight distributionInfo
- Publication number
- JPS57141401A JPS57141401A JP15613481A JP15613481A JPS57141401A JP S57141401 A JPS57141401 A JP S57141401A JP 15613481 A JP15613481 A JP 15613481A JP 15613481 A JP15613481 A JP 15613481A JP S57141401 A JPS57141401 A JP S57141401A
- Authority
- JP
- Japan
- Prior art keywords
- pullulan
- average
- product
- fractions
- ratio
- 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
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
PURPOSE: To obtain high-purity pullulan with a narrowed MW distribution in high yields, by partially decomposing raw pullulan, fractionating the decomposition product and collecting the fractions having a weight-average MW/number- average MW ratio of below a specified value.
CONSTITUTION: Raw pullulan is partially decomposed, the decomposition product is fractionated and the fractions having a weight-average MW/number-average MW ratio of below 1.5 are collected. The resulting pullulan fractions ar usually decolorized and desalted by active carbon, an ion exchange resin, etc., to obtain the purpose pullulan product.
USE: This pullulan product is used advantageously as a water-soluble high-molecular standard reagent. For example, in case where it is used in gel filtration or liquid chromatography, it is suitable to use pullulan with a MW distribution which is narrowed to such an extent that the reversed Mw/reversed Mn ratio is about 1.3W1.1. Moreover, the product is useful as a plasma expander, a blood flow improver or the like.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15613481A JPS57141401A (en) | 1981-10-02 | 1981-10-02 | Production of pullulan with narrowed molecular weight distribution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15613481A JPS57141401A (en) | 1981-10-02 | 1981-10-02 | Production of pullulan with narrowed molecular weight distribution |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14295380A Division JPS5767602A (en) | 1980-10-15 | 1980-10-15 | Preparation of pullulan for expanding plasma |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57141401A true JPS57141401A (en) | 1982-09-01 |
JPH0248561B2 JPH0248561B2 (en) | 1990-10-25 |
Family
ID=15621060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15613481A Granted JPS57141401A (en) | 1981-10-02 | 1981-10-02 | Production of pullulan with narrowed molecular weight distribution |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57141401A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5518902A (en) * | 1992-08-20 | 1996-05-21 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | High pullulan content product, and its preparation and uses |
WO2002030485A1 (en) * | 2000-10-10 | 2002-04-18 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Embolic materials |
WO2004048420A1 (en) * | 2002-11-22 | 2004-06-10 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | High-concentration liquid pullulan and method of circulating the same |
CN103172757A (en) * | 2012-12-31 | 2013-06-26 | 天津北洋百川生物技术有限公司 | Extracting process of pulullan polysaccharide |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5767602A (en) * | 1980-10-15 | 1982-04-24 | Hayashibara Biochem Lab Inc | Preparation of pullulan for expanding plasma |
-
1981
- 1981-10-02 JP JP15613481A patent/JPS57141401A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5767602A (en) * | 1980-10-15 | 1982-04-24 | Hayashibara Biochem Lab Inc | Preparation of pullulan for expanding plasma |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5518902A (en) * | 1992-08-20 | 1996-05-21 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | High pullulan content product, and its preparation and uses |
WO2002030485A1 (en) * | 2000-10-10 | 2002-04-18 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Embolic materials |
US7414038B2 (en) | 2000-10-10 | 2008-08-19 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | Embolic materials |
WO2004048420A1 (en) * | 2002-11-22 | 2004-06-10 | Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo | High-concentration liquid pullulan and method of circulating the same |
JPWO2004048420A1 (en) * | 2002-11-22 | 2006-03-23 | 株式会社林原生物化学研究所 | High concentration liquid pullulan and its distribution method |
CN103172757A (en) * | 2012-12-31 | 2013-06-26 | 天津北洋百川生物技术有限公司 | Extracting process of pulullan polysaccharide |
Also Published As
Publication number | Publication date |
---|---|
JPH0248561B2 (en) | 1990-10-25 |
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