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Applied Microbiology and Biotechnology

, Volume 102, Issue 12, pp 5021–5031 | Cite as

Solvent production by engineered Ralstonia eutropha: channeling carbon to biofuel

  • Jayashree Chakravarty
  • Christopher J. Brigham
Mini-Review
  • 379 Downloads

Abstract

Microbial production of solvents like acetone and butanol was a couple of the first industrial fermentation processes to gain global importance. These solvents are important feedstocks for the chemical and biofuel industry. Ralstonia eutropha is a facultatively chemolithoautotrophic bacterium able to grow with organic substrates or H2 and CO2 under aerobic conditions. This bacterium is a natural producer of polyhydroxyalkanoate biopolymers. Recently, with the advances in the development of genetic engineering tools, the range of metabolites R. eutropha can produce has enlarged. Its ability to utilize various carbon sources renders it an interesting candidate host for synthesis of renewable biofuel and solvent production. This review focuses on progress in metabolic engineering of R. eutropha for the production of alcohols, terpenes, methyl ketones, and alka(e)nes using various resources. Biological synthesis of solvents still presents the challenge of high production costs and competition from chemical synthesis. Better understanding of R. eutropha biology will support efforts to engineer and develop superior microbial strains for solvent production. Continued research on multiple fronts is required to engineer R. eutropha for truly sustainable and economical solvent production.

Keywords

Ralstonia eutropha Carbon metabolism Alcohols Biofuels Solvents Chemolithoautotroph 

Notes

Acknowledgements

We thank Prof. Alexander Steinbüchel and the editorial team of Applied Microbiology and Biotechnology for the opportunity to write and publish this work. CJB thanks Prof. Anthony Sinskey of Massachusetts Institute of Technology for the opportunity to work on a biofuel production project, which serves as the inspiration for continued interest in this topic.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Jayashree Chakravarty
    • 1
  • Christopher J. Brigham
    • 2
  1. 1.Department of BioengineeringUniversity of Massachusetts DartmouthNorth DartmouthUSA
  2. 2.Department of Interdisciplinary EngineeringWentworth Institute of TechnologyBostonUSA

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