A method for solvent extraction of polyhydroxyalkanoate from biomass promoted by the use of a secondary non-solvent for this in Pai

摘要

The present invention provides a method of treating a biomass comprising: a) treating the biomass using a PHA solvent, and a secondary non-solvent to the PHA; b) leaving a solution of PHA and a secondary non-pharmacophore to the PHA by removing any insoluble biomass; And c) separating the polyhydroxyalkanoate (PHA) from the biomass containing the PHA, which comprises suspending the precipitated PHA in the secondary solvent for the PHA by removing the PHA solvent from the solution /RTI Optionally, the method also includes leaving the PHA by removing the secondary non-payoff to the PHA. The present invention also relates to a suspension and a PHA produced by the method.