Solvent extraction of polyhydroxyalkanoates from biomass has been facilitated by the use of a limited non-solvent for PHA

摘要

(57) [Abstract] The present invention relates to a process for separating a PHA from a biomass containing polyhydroxyalkanoates and (PHA). And can be treated with limited non-solvent for PHA and PHA solvent: a) the biomass, the process may be removed b) both of the insoluble biomass, grasp, leaving behind a solution of the restricted non-solvent for PHA and PHA and, this is a method which is characterized in that to remove the PHA solvent from c) the solution, to have to obtain a suspension of the precipitated PHA of limited non-solvent for the PHA. Depending on the case, the process further comprises the step of removing the limited non-solvent for the PHA, to have, leaving behind the PHA. The present invention also relates to and PHA suspension prepared by the process.