Microbial assimilation of lignin-derived aromatic compounds and conversion to value-added products

Christopher C. Azubuike, Marco N. Allemann, Joshua K. Michener

Research output: Contribution to journalReview articlepeer-review

35 Scopus citations

Abstract

Lignin is an abundant and sustainable source of aromatic compounds that can be converted to value-added products. However, lignin is underutilized, since depolymerization produces a complex mixture of aromatic compounds that is difficult to convert to a single product. Microbial conversion of mixed aromatic substrates provides a potential solution to this conversion challenge. Recent advances have expanded the range of lignin-derived aromatic substrates that can be assimilated and demonstrated efficient conversion via central metabolism to new potential products. The development of additional non-model microbial hosts and genetic tools for these hosts have accelerated engineering efforts. However, yields with real depolymerized lignin are still low, and additional work will be required to achieve viable conversion processes.

Original languageEnglish
Pages (from-to)64-72
Number of pages9
JournalCurrent Opinion in Microbiology
Volume65
DOIs
StatePublished - Feb 2022

Funding

This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. This material is based upon work supported by the U.S. Department of Energy , Office of Science , Office of Biological and Environmental Research , through an Early Career Award to JKM. The authors thank numerous members of the Department of Energy Bioenergy Research Centers for helpful discussions on this topic.

FundersFunder number
U.S. Department of Energy
Office of Science
Biological and Environmental Research

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