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Biosynthesis of poly(3-hydroxyalkanoate) from amino acids
1Department of Biomolecular Engineering, Tokyo Institute of Technology, Japan.
International Journal of Biological Macromolecules
|December 1, 1992
Summary
Alcaligenes eutrophus H16 synthesizes optically active poly(3-hydroxybutyrate-co-3-hydroxyvalerate) from amino acids. Threonine fermentation conditions were optimized to understand the biosynthesis of this valuable copolyester.
Area of Science:
- Microbial biosynthesis of polymers
- Biotechnology and biopolymers
Background:
- Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (P(3HB-co-3HV)) is an optically active biodegradable copolyester.
- Alcaligenes eutrophus H16 is a known microbial producer of polyhydroxyalkanoates.
Purpose of the Study:
- To investigate the optimal fermentation conditions for synthesizing P(3HB-co-3HV) from the amino acid threonine using Alcaligenes eutrophus H16.
- To elucidate the biosynthetic pathway of P(3HB-co-3HV) based on fermentation parameters and resulting co-monomer composition.
Main Methods:
- Fermentation of Alcaligenes eutrophus H16 using threonine as a carbon source under varied conditions.
- Analysis of the co-monomer composition of the synthesized P(3HB-co-3HV).
Main Results:
- The study identified optimal fermentation conditions for P(3HB-co-3HV) production from threonine.
- A correlation was established between fermentation conditions and the co-monomer composition of the produced copolyester.
Conclusions:
- Fermentation conditions significantly influence the biosynthesis and co-monomer composition of P(3HB-co-3HV) produced by Alcaligenes eutrophus H16.
- Understanding these relationships provides insights into the biosynthetic pathway of this optically active copolyester.
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