Engineering aspects of microbial exopolysaccharide production

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35 Citations (Scopus)

Abstract

Although the ability to secrete exopolysaccharides (EPS) is widespread among microorganisms, only a few bacterial (e.g. xanthan, levan, dextran) and fungal (e.g. pullulan) EPS have reached full commercialization. During the last years, other microbial EPS producers have been the subject of extensive research, including endophytes, extremophiles, microalgae and Cyanobacteria, as well as mixed microbial consortia. Those studies have demonstrated the great potential of such microbial systems to generate biopolymers with novel chemical structures and distinctive functional properties. In this work, an overview of the bioprocesses developed for EPS production by the wide diversity of reported microbial producers is presented, including their development and scale-up. Bottlenecks that currently hinder microbial EPS development are identified, along with future prospects for further advancement.

Original languageEnglish
Pages (from-to)1674-1683
Number of pages10
JournalBioresource Technology
Volume245
Issue numberPartB
DOIs
Publication statusPublished - Dec 2017

Keywords

  • Bacteria
  • Exopolysaccharide (EPS)
  • Extremophiles
  • Fungi
  • Mixed microbial consortia

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