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Appl Environ Microbiol. 2000 Aug;66(8):3624-7.

Production of Poly(3-hydroxybutyrate) by fed-batch culture of recombinant Escherichia coli with a highly concentrated whey solution.

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  • 1Department of Chemical Engineering and BioProcess Engineering Research Center, Korea Advanced Institute of Science and Technology, Yusong-gu, Taejon 305-701, Korea.


Fermentation strategies for the production of poly(3-hydroxybutyrate) (PHB) from whey by recombinant Escherichia coli strain CGSC 4401 harboring the Alcaligenes latus polyhydroxyalkanoate (PHA) biosynthesis genes were developed. The pH-stat fed-batch cultures of E. coli CGSC 4401 harboring pJC4, a stable plasmid containing the A. latus PHA biosynthesis genes, were carried out with a concentrated whey solution containing 280 g of lactose equivalent per liter. Final cell and PHB concentrations of 119.5 and 96.2 g/liter, respectively, were obtained in 37.5 h, which resulted in PHB productivity of 2.57 g/liter/h.

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