If biomass containing PHA and non--PHA material way to enhance the mechanical properties of the blend formed from a polyhydroxyalkanoate (PHA) recovered by the biomass. The method melting the PHA and non -PHA material in solution and include separating the PHA from the solution and the non--PHA material. Further, the method includes combining the enhanced non-separated and separated PHA -PHA material of at least some of the mechanical properties in the formulation of plastic material with. ;
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