Methanol as a co-substrate with CO₂ enhances butyrate production in microbial electrosynthesis.

ABSTRACT: Methanol is a promising feedstock for the bio-based economy as it can be derived from organic waste streams or produced electrochemically from CO₂. Acetate production from CO₂ in microbial electrosynthesis (MES) has been widely studied, while more valuable compounds such as butyrate are currently attracting attention. In this study, methanol was used as a co-substrate with CO₂ to enhance butyrate production in MES. Feeding with CO₂ and methanol resulted in the highest butyrate production rates and titres of 0.36 ± 0.01 g L^-1 d^-1 and 8.6 ± 0.2 g L^-1, respectively, outperforming reactors with only CO₂ feeding (0.20 ± 0.03 g L^-1 d^-1 and 5.2 ± 0.1 g L^-1, respectively). Metha

SUBMITTER: Yao H 

PROVIDER: S-EPMC11178620 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature