Si-Jae Park,Taek-Ho Yang,Hye-Ok Kang,Sang-Hyun Lee,Eun-Jeong Lee,Tae-Wan Kim,Sang-Yup Lee
申请号：
US12312635
公开号：
US08383379B2
申请日:
2007.11.21
申请国别(地区):
US
年份:
2013
代理人:
摘要：
The present invention relates to a copolymer comprising 4-hydroxybutyrate monomer unit and lactate monomer unit, a copolymer 4-hydroxybutyrate monomer unit, lactate monomer unit and 3-hydroxyalkanoate, or their preparing method. More specifically, the present invention relates to a method for preparing a copolymer comprising lactate monomer 4-hydroxybutyrate monomer and optionally 3-hydroxyalkanoate, wherein the method comprises culturing a cell or plant comprising the gene of enzyme converting lactate and 3-hydroxyalkanoate into lactyl-CoA and 3-hydroxyalkanoyl-CoA, respectively, phosphotransbutylase gene, butyrate kinase gene and polyhydroxyalkanoate synthase gene together, and the copolymer made by the method. The copolymer of the present invention is a biodegradable polymer being able to be usefully used instead of conventional synthetic plastic, and the copolymer can be used for medical use.
