Patent ID: 8980593
Filing Date: 2015-03-17
Classification: C12P

Abstract:
1. A tunable method for producing at least one polyhydroxyalkanoate biopolymer comprising: a. providing a carbon source of glycerol, levulinic acid, and mixtures thereof in a tunable amount that drives the microbial synthesis of said at least one polyhydroxyalkanoate biopolymer in a fermentation medium, b. providing a microorganism in said same fermentation medium capable of synthesizing said at least one polyhydroxyalkanoate biopolymer using as a carbon source a tunable amount of glycerol, levulinic acid, and mixtures thereof that drives the microbial synthesis of said at least one polyhydroxyalkanoate biopolymer, and c. recovering said at least one polyhydroxyalkanoate biopolymer; wherein said at least one polyhydroxyalkanoate biopolymer is biocompatible and biodegradable polyester; and wherein said at least one polyhydroxyalkanoate biopolymer is selected from the group consisting of poly-3-hydroxybutyrate, poly-3-hydroxyvalerate, and poly-3-hydroxybutyrate-co-3-hydroxyvalerate; and wherein said tunable method further comprises varying said carbon source in said fermentation medium, wherein said microorganism is selected from the group consisting of