Butyric acid: Applications and recent advances in its bioproduction

Biotechnol Adv. 2018 Dec;36(8):2101-2117. doi: 10.1016/j.biotechadv.2018.09.005. Epub 2018 Sep 26.

Abstract

Butyric acid is an important C4 organic acid with broad applications. It is currently produced by chemosynthesis from petroleum-based feedstocks. However, the fermentative production of butyric acid from renewable feedstocks has received growing attention because of consumer demand for green products and natural ingredients in foods, pharmaceuticals, animal feed supplements, and cosmetics. In this review, strategies for improving microbial butyric acid production, including strain engineering and novel fermentation process development are discussed and compared regarding product yield, titer, purity and productivity. Future perspectives on strain and process improvements for butyric acid production are also discussed.

Keywords: Butyric acid; Clostridia; Fermentation; Metabolic engineering; Product recovery; Renewable feedstock.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Review

MeSH terms

  • Bioreactors / microbiology*
  • Butyric Acid / metabolism*
  • Clostridium* / enzymology
  • Clostridium* / genetics
  • Clostridium* / metabolism
  • Fermentation
  • Metabolic Engineering*
  • Metabolic Networks and Pathways

Substances

  • Butyric Acid