Secretory Production of Microbial Oligoesters and Their Use for Poly(ester-urethane) Synthesis

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  • SAKURAI Tetsuo
    Dept. of Materials Science and Engineering, Tokyo Institute of Technology
  • TSUGE Takeharu
    Dept. of Materials Science and Engineering, Tokyo Institute of Technology

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  • 微生物によるオリゴエステルの分泌生産とウレタン材料化
  • ビセイブツ ニ ヨル オリゴエステル ノ ブンピ セイサン ト ウレタン ザイリョウカ

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Abstract

<p>Plastic pollution has become a global concern. The accumulation of plastics in the environment mainly in marine is causing a serious environmental and ecological issue. Polyhydroxyalkanoates (PHAs) are one of the best candidates to be used as a sustainable and biodegradable thermoplastic, instead of using petroleum-based plastics. PHAs are produced from renewable biomass such as sugars and plant oils by bacterial fermentation and show excellent biodegradability even in marine environments. Recently, based on the PHA production, a new culture method for the secretion of the intracellularly synthesized oligoesters from PHA-producing bacteria was developed. The secreted oligoesters are mainly 3 to 7-mers of (R)-3-hydroxybutyrate, capped with an alcohol compound at the carboxy end. The oligoesters have the potential to be used as macromonomers for generating new PHA-based materials. This article reviews the usefulness of PHA as a biodegradable plastic and presents the secretory production of oligoesters from PHA-producing bacteria. Additionally, this article describes the feasibility of the oligoesters for the synthesis of poly(ester-urethane) as a macromonomer.</p>

Journal

  • Oleoscience

    Oleoscience 21 (12), 525-529, 2021

    Japan Oil Chemists' Society

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