Verfahren zur Gewinnung von Polyhydroxyalkanoaten und deren Verwendung

摘要

The process enables polyhydroxy alkanoates to be obtained in an amorphous state from the cell structures of an alkanoate accumulating microorganism. According to said process the cellular mass in aqueous phase is first subjected to mechanical forces, subsequently undergoes alkaline treatment at temperatures above 70 DEG C and lysis, and is then treated with hydrogen peroxide at temperatures of 70-95 DEG C, non-polymer cellular components being separated between the processing stages.The hydroxyalkanoate particles so obtained can be used as a polymer dispersion for surface coating, as a polymer-processing auxiliary agent or as supporting material in medicine.