Steering the Chain-Elongating Microbiome to C8 or C6 Production with Ethanol and Lactate as Coelectron Donors.

ABSTRACT: Microbial chain elongation is a sustainable process to convert organic residues into valuable biochemicals via anaerobic fermentation. The operating conditions for the bioreactor and the ecological interactions among functional populations are crucial in controlling this process, but they have not been completely ascertained. Here, we studied two operating conditions (i.e., environmental factors): (1) the substrate ratio of ethanol and lactate as coelectron donors, and (2) the temperature, which affected both the product specificity (i.e., function) and microbial dynamics of chain-elongating microbiomes in a continuously fed bioreactor with product extraction that is the third pertinent operating condition. Specifically, we found that the increase in the substrate rati

SUBMITTER: Wang H 

PROVIDER: S-EPMC12369010 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature