TY - JOUR
T1 - Microbial Electrosynthesis for Producing Medium Chain Fatty Acids
AU - Chu, Na
AU - Hao, Wen
AU - Wu, Qinglian
AU - Liang, Qinjun
AU - Jiang, Yong
AU - Liang, Peng
AU - Ren, Zhiyong Jason
AU - Zeng, Raymond Jianxiong
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China ( 51908131 ), Special Fund of State Key Joint Laboratory of Environment Simulation and Pollution Control ( 19K05ESPCT ), the Chinese Academy of Sciences Key Laboratory of Environmental and Applied Microbiology & Environmental Microbiology Key Laboratory of Sichuan Province , Chengdu Institute of Biology, Chinese Academy of Sciences ( KLCAS-2019-1 ), and the Fujian Provincial Natural Science Foundation of China ( 2020J01563 ).
Publisher Copyright:
© 2022 Chinese Academy of Engineering
PY - 2022/9
Y1 - 2022/9
N2 - Microbial electrosynthesis (MES) employs microbial catalysts and electrochemistry to enhance CO2 bioconversion to organics with concurrent waste biorefining capability. The aim of this review is to comprehensively discuss the current state of the art and prospects of medium chain fatty acids (MCFAs) production in MES from CO2 and organic wastes. Fundamental mechanisms and development of MCFAs production via conventional fermentation are introduced as well. Studies on MCFAs production in MES are summarized, highlighting the strategy of multiple-electron donors (EDs). Challenges for MCFAs production in MES from CO2 are presented, and the primary discussions included methanogenesis inhibition, adenosine triphosphate (ATP) limitations of acetogens, and production of limited EDs via solventogenesis. Possible applications of electrochemical approaches to promote the bioconversion of actual waste materials with MCFAs production are analyzed. Finally, future directions are explored, including multi-stage reactions, substrate supply, product extraction, and microbial pathways.
AB - Microbial electrosynthesis (MES) employs microbial catalysts and electrochemistry to enhance CO2 bioconversion to organics with concurrent waste biorefining capability. The aim of this review is to comprehensively discuss the current state of the art and prospects of medium chain fatty acids (MCFAs) production in MES from CO2 and organic wastes. Fundamental mechanisms and development of MCFAs production via conventional fermentation are introduced as well. Studies on MCFAs production in MES are summarized, highlighting the strategy of multiple-electron donors (EDs). Challenges for MCFAs production in MES from CO2 are presented, and the primary discussions included methanogenesis inhibition, adenosine triphosphate (ATP) limitations of acetogens, and production of limited EDs via solventogenesis. Possible applications of electrochemical approaches to promote the bioconversion of actual waste materials with MCFAs production are analyzed. Finally, future directions are explored, including multi-stage reactions, substrate supply, product extraction, and microbial pathways.
KW - Acetogen
KW - Chain elongation
KW - Electro-fermentation
KW - Electroactive microorganism
KW - Microbial electrochemistry
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U2 - 10.1016/j.eng.2021.03.025
DO - 10.1016/j.eng.2021.03.025
M3 - Review article
AN - SCOPUS:85129454067
SN - 2095-8099
VL - 16
SP - 141
EP - 153
JO - Engineering
JF - Engineering
ER -