Method for producing polyhydroxyalkanoate and use of same
AssigneeKaneka Corporation
InventorsNaoki DEGUCHI, Masaru HIRANO
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Abstract
An object is to provide a PHA production method which enables efficient filtration. The above problem is solved by providing a PHA production method including a filtration step of subjecting, to dead-end filtration, an aqueous PHA suspension having a pH of 2.5 to 5.5 with use of a filter medium having an air permeability of 0.01 cc/cm2/sec to 5.0 cc/cm2/sec, the aqueous PHA suspension containing PHA surface adhesion protein in an amount of not more than 2,000 ppm, the aqueous PHA suspension having a liquid density of 0.50 g/mL to 1.08 g/mL in the filtration step.
Claims20
A method of polyhydroxyalkanoate production, the method comprising:
- subjecting an aqueous polyhydroxyalkanoate suspension having a pH of 2.5 to 5.5 to dead-end filtration using a filter medium having an air permeability of from 0.01 cc/cm2/sec to 5.0 cc/cm2/sec,
- wherein the aqueous polyhydroxyalkanoate suspension comprises a polyhydroxyalkanoate surface adhesion protein in an amount of not more than 2,000 ppm, and
- the aqueous polyhydroxyalkanoate suspension has a liquid density of from 0.50 g/mL to 1.08 g/mL in the filtration.
(canceled)
Dependencies are inferred from the claim text.