To provide a novel polyhydroxyalkanoate and a manufacturing method by a microorganism capable of substantially reducing unintended monomer units and obtaining the polyhydroxyalkanoate in a high yield. A microorganism capable of synthesizing a novel polyhydroxyalkanoate having 3-hydroxy-substituted benzoylalkanoic acid as a monomer unit using a substituted benzoylalkanoic acid as a material is cultured in the medium containing a substituted benzoylalkanoic acid, then the polyhydroxyalkanoate produced in the cultured bacteria is extracted and recovered.

_ proporcionar uno novela polyhydroxyalkanoate y uno fabricación método por uno microorganismo capaz substancial reducing involuntario monomer unidad y obtaining polyhydroxyalkanoate en uno alto rendir. _ uno microorganismo capaz synthesizing uno novela polyhydroxyalkanoate tener 3-hydroxy-substituted benzoylalkanoic ácido como uno monomer unidad using uno substituir benzoylalkanoic ácido como uno material ser cultivar en medio containing uno substituir benzoylalkanoic ácido, entonces polyhydroxyalkanoate producir en cultivar bacteria ser extracted y recuperar. _

 
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