Journal of Microbiology and Biotechnology

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Biosynthesis of Novel Poly(3-hydroxyalkanoates) Containing Alkoxy Groups by Pseudomonas oleovorans

  • Kim, Do-Young (Department of Microbiology, Chungnam National University) ;
  • Nam, Jin-Sik (Department of Microbiology, Chungnam National University) ;
  • Rhee, Young-Ha (Department of Microbiology, Chungnam National University) ;
  • Kim, Young-Baek (Department of Polymer Engineering, PaiChai University)
  • Published : 2003.08.01
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Abstract

Novel poly(3-hydroxyalkanoates), PHAs, having either methoxy or ethoxy groups as the terminal hydrophilic moieties, were biosynthesized by Pseudolnons oleovorans. grown either solely with 11-alkoxyundecanoic acid or 8-alkoxyoctanoic acid, or grown with a mixture of 6-alkoxyhexanoic acid and nonanoic acid. The PHA synthesized from 11-methoxyundecanoic acid consisted of 88 mol% 3-hydroxy-7-methoxyheptanoate and 12 mol% 3-hydroxy-9-methoxynonanoate. However, the PHA produced from 11-ethoxyundecanoic acid consisted of 56 mol% 3-hydroxy-5-ethoxypentanoate and 44 mol% 3-hydroxy-7-ethoxyheptanoate. The high solubility of the PHAs in methanol and ethanol indicated that the alkoxy groups in the side chains resulted in the formation of PHAs with an enhanced hydrophilicity.

Keywords

References

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