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US 2024/0287554 A1Published application
Production of Biopolymers
OwnerFabiana Fantinel, Alessandro Carfagniniinventors
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Abstract
A method for producing PHA polymer using bacteria includes in a first step the bacteria are grown under heterotrophic conditions using an organic substance as carbon source and exponential growth conditions. In a second step the bacteria are then cultivated under autotrophic conditions under an atmosphere of H2, CO2 and O2, wherein the O2 content is less than 10% (v/v) and the pressure is more than 1 barg and at least one carbon source is added before and/or during this step.
Claims16
Method for producing PHA comprising:
- a) growing bacteria under heterotrophic conditions in a media;
- and
- b) cultivating the bacteria under autotrophic conditions under an atmosphere of CO2, H2 and optional O2, wherein the amount of O2 if present is less than 10% (v/v) and pressure is at least 1 barg, wherein at least one carbon source is added before and/or during step b).
Dependencies are inferred from the claim text.