Polyhydroxyalkanoate and manufacturing method thereof
AssigneeCanon Kabushiki Kaisha
InventorsTsutomu Honma, Etsuko Sugawa, Tetsuya Yano, Takeshi Imamura, Takashi Kenmoku
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Abstract
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.
Claims27
A polyhydroxyalkanoate having a composition of monomer units represented by the following formula [1]:
- AxB(1-x) [1]
- wherein A is at least one or more represented by the following chemical formula [2];
- B is at least one or more selected from monomer units represented by the following chemical formula [3] or [4];
- and x is 0.01 or more and not exceed 1,
- wherein n is any integer of 1 to 8;
- and R is any one selected from the group consisting of a halogen atom, —CN, —NO2, —CH3, —C2H5, —C3H7, —CF3, —C2F5 and —C3F7),
- wherein p is any integer of 0 to 10, and
- wherein q is an integer of either 3 or 5.
A method for manufacturing polyhydroxyalkanoate having a composition of monomer units represented by the following formula [1] comprising the steps of:
- preparing a medium containing a substituted benzoylalkanoic acid and;
- culturing a microorganism capable of synthesizing the polyhydroxyalkanoate having said composition using said substituted benzoyl alkanoic acid in said medium,
- AxB(1-x) [1]
- wherein A is at least one or more represented by the following chemical formula [2];
- B is at least one or more selected from monomer units represented by the following chemical formula [3] or [4];
- and x is 0.01 or more and not exceed 1,
- wherein n is any integer of 1 to 8;
- and R is any one selected from the group consisting of a halogen atom, —CN, NO2, —CH3, —C2H5, —C3H7, —CF3, —C2F5 and —C3F7,
- wherein p is any integer of 0 to 10, and
- wherein q is an integer of either 3 or 5.
Dependencies are inferred from the claim text.