Improved energy efficiency in microbial fuel cells by bioethanol and electricity co-generation.

ABSTRACT:

Background

Microbial electricity production has received considerable attention from researchers due to its environmental friendliness and low price. The increase in the number of intracellular electrons in a microbial fuel cell (MFC) helps to improve the MFC performance.

Results

In this study, we accumulated excess electrons intracellularly by knocking out the gene related to intracellular electron consumption in Saccharomyces cerevisiae, and the elevated intracellular electron pool positively influenced the performances of MFCs in terms of electricity production, while helping to increase ethanol production and achieve ethanol and electricity co-production, which in turn improved the utilization of substrates. The final knockout strain reached a maximum ethanol yield of 7.

SUBMITTER: Xie R 

PROVIDER: S-EPMC9382818 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature