发明名称 |
PROCESS FOR THE PREPARING OF COLOURELESS POLYHYDROXYALKANOATE |
摘要 |
A process is disclosed for preparing dye-free polyhydroxyalkanoates formed in the cells as storage substances during the culture of bacterial biomasses. The dried bacterial biomass is at first exposed for 10 to 120 minutes to a temperature between 80 DEG C and the lower limit of the polyhydroxyalkanoate melting range, and is then extracted with acetic acid; 1 to 10 parts per volume, expressed as a percentage, of an aliphatic carboxylic acid derivate, are added to the extracting agent. |
申请公布号 |
LT3050(B) |
申请公布日期 |
1994.10.25 |
申请号 |
LTIP543 |
申请日期 |
1993.05.12 |
申请人 |
BUNA AG |
发明人 |
LEHMANN,OLAF;MAYER,TORSTEN;RAPTHEL,INNO;RAUCHSTEIN,KLAUS-DIETER;RUNKEL,DIETMAR;SCHAFFER,JURGEN |
分类号 |
C08G63/90;C12P7/62;(IPC1-7):C12P7/42;C07C51/48;C07C59/10 |
主分类号 |
C08G63/90 |
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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