Microbial Ecological Mechanism for Long-Term Production of High Concentrations of n-Caproate via Lactate-Driven Chain Elongation.

ABSTRACT: Lactate-driven chain elongation (LCE) has emerged as a new biotechnology to upgrade organic waste streams into a valuable biochemical and fuel precursor, medium-chain carboxylate, n-caproate. Considering that a low cost of downstream extraction is critical for biorefinery technology, a high concentration of n-caproate production is very important to improve the scale-up of the LCE process. We report here that in a nonsterile open environment, the n-caproate concentration was increased from the previous record of 25.7 g·liter^-1 to a new high level of 33.7 g·liter^-1 (76.8 g chemical oxygen demand [COD]·liter ^-1), with the highest production rate being 11.5 g·liter^-1·day^-1 (26.2 g COD·liter

SUBMITTER: Zhu X 

PROVIDER: S-EPMC8208166 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature