{"title":"生物电化学系统:探索微生物群落、相互作用和电子传递","authors":"","doi":"10.1016/j.bej.2024.109442","DOIUrl":null,"url":null,"abstract":"<div><p>Bioelectrochemical system (BES) relies on the electrochemical reactions derived from the interaction between microorganisms and solid electrodes to enable processes such as electricity generation and other biotechnological applications. The diversity of these electroactive microorganisms capable of extracellular electron transfer (EET) spread across all three domains of life. The expanding research in this domain focuses on enhancing the EET capabilities of these exoelectrogens and exploring non-exoelectrogens that can support them while reducing waste through various biogeochemical processes. Approaches such as biofilm improvement, genetic modification of electron-conducting proteins, and overexpressing redox mediators are explored to increase EET efficiency. Electrochemically inactive fermentative microorganisms that are non-exoelectrogens often coexist with exoelectrogens. Although their presence has been associated with increased power generation, their excessive proliferation can diminish power output. Therefore, understanding the synergies and intricate balance between exoelectrogens and non-exoelectrogens is necessary. This review discusses the mechanism of EET, strategies to improve EET by engineering microbial communities, the role of non-exoelectrogens involved in the BES, interactions, and synergies within microbial consortia and the factors that affect them, as well as their community structure and dynamics. This review seeks to elucidate the complex interplay within BES and pave the way for future advancements in this field by examining these aspects.</p></div>","PeriodicalId":8766,"journal":{"name":"Biochemical Engineering Journal","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Bioelectrochemical systems: Exploring microbial communities, interactions, and electron transfer\",\"authors\":\"\",\"doi\":\"10.1016/j.bej.2024.109442\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Bioelectrochemical system (BES) relies on the electrochemical reactions derived from the interaction between microorganisms and solid electrodes to enable processes such as electricity generation and other biotechnological applications. The diversity of these electroactive microorganisms capable of extracellular electron transfer (EET) spread across all three domains of life. The expanding research in this domain focuses on enhancing the EET capabilities of these exoelectrogens and exploring non-exoelectrogens that can support them while reducing waste through various biogeochemical processes. Approaches such as biofilm improvement, genetic modification of electron-conducting proteins, and overexpressing redox mediators are explored to increase EET efficiency. Electrochemically inactive fermentative microorganisms that are non-exoelectrogens often coexist with exoelectrogens. Although their presence has been associated with increased power generation, their excessive proliferation can diminish power output. Therefore, understanding the synergies and intricate balance between exoelectrogens and non-exoelectrogens is necessary. This review discusses the mechanism of EET, strategies to improve EET by engineering microbial communities, the role of non-exoelectrogens involved in the BES, interactions, and synergies within microbial consortia and the factors that affect them, as well as their community structure and dynamics. This review seeks to elucidate the complex interplay within BES and pave the way for future advancements in this field by examining these aspects.</p></div>\",\"PeriodicalId\":8766,\"journal\":{\"name\":\"Biochemical Engineering Journal\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2024-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biochemical Engineering Journal\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1369703X24002298\",\"RegionNum\":3,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOTECHNOLOGY & APPLIED MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biochemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1369703X24002298","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
Bioelectrochemical systems: Exploring microbial communities, interactions, and electron transfer
Bioelectrochemical system (BES) relies on the electrochemical reactions derived from the interaction between microorganisms and solid electrodes to enable processes such as electricity generation and other biotechnological applications. The diversity of these electroactive microorganisms capable of extracellular electron transfer (EET) spread across all three domains of life. The expanding research in this domain focuses on enhancing the EET capabilities of these exoelectrogens and exploring non-exoelectrogens that can support them while reducing waste through various biogeochemical processes. Approaches such as biofilm improvement, genetic modification of electron-conducting proteins, and overexpressing redox mediators are explored to increase EET efficiency. Electrochemically inactive fermentative microorganisms that are non-exoelectrogens often coexist with exoelectrogens. Although their presence has been associated with increased power generation, their excessive proliferation can diminish power output. Therefore, understanding the synergies and intricate balance between exoelectrogens and non-exoelectrogens is necessary. This review discusses the mechanism of EET, strategies to improve EET by engineering microbial communities, the role of non-exoelectrogens involved in the BES, interactions, and synergies within microbial consortia and the factors that affect them, as well as their community structure and dynamics. This review seeks to elucidate the complex interplay within BES and pave the way for future advancements in this field by examining these aspects.
期刊介绍:
The Biochemical Engineering Journal aims to promote progress in the crucial chemical engineering aspects of the development of biological processes associated with everything from raw materials preparation to product recovery relevant to industries as diverse as medical/healthcare, industrial biotechnology, and environmental biotechnology.
The Journal welcomes full length original research papers, short communications, and review papers* in the following research fields:
Biocatalysis (enzyme or microbial) and biotransformations, including immobilized biocatalyst preparation and kinetics
Biosensors and Biodevices including biofabrication and novel fuel cell development
Bioseparations including scale-up and protein refolding/renaturation
Environmental Bioengineering including bioconversion, bioremediation, and microbial fuel cells
Bioreactor Systems including characterization, optimization and scale-up
Bioresources and Biorefinery Engineering including biomass conversion, biofuels, bioenergy, and optimization
Industrial Biotechnology including specialty chemicals, platform chemicals and neutraceuticals
Biomaterials and Tissue Engineering including bioartificial organs, cell encapsulation, and controlled release
Cell Culture Engineering (plant, animal or insect cells) including viral vectors, monoclonal antibodies, recombinant proteins, vaccines, and secondary metabolites
Cell Therapies and Stem Cells including pluripotent, mesenchymal and hematopoietic stem cells; immunotherapies; tissue-specific differentiation; and cryopreservation
Metabolic Engineering, Systems and Synthetic Biology including OMICS, bioinformatics, in silico biology, and metabolic flux analysis
Protein Engineering including enzyme engineering and directed evolution.