Dye-free poly:hydroxy:alkanoate prodn. - comprises heating dried bacterial biomass to specified temp. and extracting with acetic acid anhydride,申请号DE19924215864-传众专利搜索

发明名称	Dye-free poly:hydroxy:alkanoate prodn. - comprises heating dried bacterial biomass to specified temp. and extracting with acetic acid anhydride
摘要	Dye-free polyhydroxyalkanoates are obtd. from bacterial biomass pref. from microorganism culture MB 126 by drying the moist biomass, extracting the dried biomass and precipitating the polyhydroxyalkanoates. The dried biomass is obtd. using a residence time of 10 to 120 minutes at a temp. between 80 deg.C and below the m.pt. of the polyhydroxyalkanoates followed by extracting using an agent comprising acetic acid anhydride. ADVANTAGE - Less solvent is used and an optically pure prod. is obtd.
申请公布号	DE4215864(A1)	申请公布日期	1993.11.18
申请号	DE19924215864	申请日期	1992.05.14
申请人	BUNA AG, 06258 SCHKOPAU, DE	发明人	RUNKEL, DIETMAR, DIPL.-ING., O-4202 MERSEBURG, DE;LEHMANN, OLAF, DIPL.-ING., O-4090 HALLE, DE;MAYER, TORSTEN, DIPL.-ING., O-4070 HALLE, DE;RAUCHSTEIN, KLAUS-DIETER, DR.-ING., O-4090 HALLE, DE;SCHAFFER, JUERGEN, DR.-ING., O-4090 HALLE, DE
分类号	C07C59/10;C07C59/105;C12P7/62;(IPC1-7):C12P7/42;C07C51/48	主分类号	C07C59/10
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