Liquid biopolymer, use thereof, and preparation method
AssigneeLG Chem, Ltd.
InventorsJae Hyung KIM, Dong Gyun KANG, Chul Woong KIM, Young Hyun CHO, Sung Joon OH, Jeong Kyu LEE, In Young HUH
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Abstract
A biopolymer, which exists in a liquid phase at room temperature, a use thereof, and a preparation method therefor are provided.
Claims15
1-8. (canceled)
A method for preparing a copolymer comprising 4-hydroxybutyrate and 2-hydroxybutyrate as a repeating unit, comprising
- culturing a microorganism which has a weakened or deficient activity of lactate dehydrogenase and comprises a gene encoding an enzyme converting 2-hydroxyalkanoate into 2-hydroxyalkanoyl-CoA and converting 4-hydroxyalkanoate into 4-hydroxyalkanoyl-CoA and a gene encoding a polyhydroxyalkanoate synthase using 2-hydroxyalkanoyl-CoA and 4-hydroxyalkanoyl-CoA as a substrate.
A microorganism producing a copolymer comprising 2-hydroxybutyrate and 4-hydroxybutyrate as a repeating unit, wherein the microorganism has a weakened or deficient activity of lactate dehydrogenase and comprises a gene encoding an enzyme converting 2-hydroxyalkanoate into 2-hydroxyalkanoyl-CoA and converting 4-hydroxyalkanoate into 4-hydroxyalkanoyl-CoA and a gene encoding a PHA synthase using 2-hydroxyalkanoyl-CoA and 4-hydroxyalkanoyl-CoA as a substrate.
Dependencies are inferred from the claim text.