Abstract Background C5–C8 medium-chain carboxylic acids are valuable chemicals as the
precursors of various chemicals and transport fuels. However, only a few strict anaerobes
have been discovered to produce them and their production is limited to low concentrations
because of product toxicity. Therefore, a bacterial strain capable of producing high-titer C5–
C8 carboxylic acids was strategically isolated and characterized for production of medium
chain length carboxylic acids. Results Hexanoic acid-producing anaerobes were isolated …

Abstract Background: C5-C8 medium-chain carboxylic acids are valuable chemicals as the
precursors of various chemicals and transport fuels. However, only a few strict anaerobes
have been discovered to produce them and their production is limited to low concentrations
because of product toxicity. Therefore, a bacterial strain capable of producing high-titer C5-
C8 carboxylic acids was strategically isolated and characterized for production of medium
chain length carboxylic acids. Results: Hexanoic acid-producing anaerobes were isolated …