发明名称 |
METHOD OF PURIFYING 3-HYDROXYALKANOIC ACID COPOLYMER |
摘要 |
The object of this invention is to provide a method for purifying PHA separated from PHA-containing microbial cells in high purity without incurring any serious decrease in molecular weight. <??>The present invention provides a method for purifying a 3-hydroxyalkanoic acid copolymer produced by a microorganism, which comprises treating an aqueous suspension containing the 3-hydroxyalkanoic acid copolymer separated from a microorganism with a hydrogen peroxide while controlling the pH of said aqueous suspension by adding an alkali either continuously or intermittently.
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申请公布号 |
EP1550723(A1) |
申请公布日期 |
2005.07.06 |
申请号 |
EP20030798554 |
申请日期 |
2003.09.30 |
申请人 |
KANEKA CORPORATION |
发明人 |
OGAWA, NORIKO;MIYAMOTO, KENJI;OSAKADA, FUMIO;MATSUMOTO, KEIJI |
分类号 |
C12P7/62;C08G63/06;C08G63/90;C12R1/01;(IPC1-7):C12P7/62 |
主分类号 |
C12P7/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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