Advances in metabolic engineering of Corynebacterium glutamicum to produce high-value active ingredients for food, feed, human health, and well-being

Essays Biochem. 2021 Jul 26;65(2):197-212. doi: 10.1042/EBC20200134.

Abstract

The soil microbe Corynebacterium glutamicum is a leading workhorse in industrial biotechnology and has become famous for its power to synthetise amino acids and a range of bulk chemicals at high titre and yield. The product portfolio of the microbe is continuously expanding. Moreover, metabolically engineered strains of C. glutamicum produce more than 30 high value active ingredients, including signature molecules of raspberry, savoury, and orange flavours, sun blockers, anti-ageing sugars, and polymers for regenerative medicine. Herein, we highlight recent advances in engineering of the microbe into novel cell factories that overproduce these precious molecules from pioneering proofs-of-concept up to industrial productivity.

Keywords: Corynebacterium glutamicum; extremolytes; metabolic engineering; plant phenols; synthetic biology; terpenoids.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acids / metabolism
  • Biotechnology
  • Corynebacterium glutamicum* / genetics
  • Corynebacterium glutamicum* / metabolism
  • Humans
  • Metabolic Engineering

Substances

  • Amino Acids