Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Patent
1991-09-17
1993-05-25
Lilling, Herbert J.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
435134, 435136, 435146, 435829, 203 14, 203 67, 528354, 528361, 528491, 528501, 560185, C12P 762, C12N 106, C07L 6966
Patent
active
052139760
ABSTRACT:
Process for extracting polyhydroxyalkanoates from the cell material of microorganisms by adding an organic solvent for the polyhydroxyalkanoate which is immiscible with water and which has a boiling point of below 100.degree. C., and, if appropriate, by adding water; stirring the resulting extraction mixture, if appropriate with refluxing; separating off the aqueous phase which contains the cell material in undissolved form from the organic phase; and injecting the organic phase into hot water, causing the dissolved polyhydroxyalkanoate to precipitate and the organic solvent to evaporate, and also isolating the precipitated polyhydroxyalkanoate flocs.
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Blauhut Wilfried
Gierlinger Wolfgang
Strempfl Friedrich
Lilling Herbert J.
PCD Polymere Gesellschaft m.b.H.
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