Microbiological production of polyesters
AssigneeRijksuniversiteit te Groningen
InventorsBernard Witholt, Gerrit Eggink, Gjalt W. Huisman
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Abstract
The invention relates to a microbiological process for the production of polyesters and utilizes bacteria of the Pseudomanas fluorescens rRNA branch according to the phylogenetic classification of De Vos and De Ley. These bacteria are cultured under aerobic fermentation conditions in a nutrient medium comprising an excess of at least one assimilarable acylic aliphatic hydrocarbon compound having 6-18 carbon atoms and a limiting quantity of at least one of other nutrients essential for growth to form poly-3-hydroxyalkanaoates.
Claims17
A process for producing poly-3-hydroxyalkanoates composed of repeating units having 6-10 carbon atoms comprising selecting bacteria from the Pseudomonks fluorescens rRNA branch and culturing said bacteria according to the phylogenetic classification by de Vos and de Ley in Int. J. of Syst. Bacteriol. 33, 1983, 487-509, with the exception of Pseudomonas oleovorans, under aerobic conditions in a nutrient medium comprising an excess of a carbon source and a limiting quantity of at least one of the other nutrients essential for growth, said carbon source comprising at least one assimilable acyclic aliphatic oxidated hydrocarbon compound having 6-18 carbon atoms.
Dependencies are inferred from the claim text.