Microbial Fuel Cell Advances

A special issue of Fermentation (ISSN 2311-5637). This special issue belongs to the section "Industrial Fermentation".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 2027

Special Issue Editor


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Guest Editor
Department of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14049-900, Brazil
Interests: biological wastewater treatment and valorisation; microbial fermentation; microbial bioelectrochemistry

Special Issue Information

Dear Colleagues,

Microbial fuel cells (MFC) can contribute towards for a sustainable future of the wastewater treatment, bioremediation, and biorefineries. Besides convert the energy stored in compounds into electricity, MFC can also transform compounds into less polluting or highly added value ones. New discoveries in the MFC field can not only augment the electricity gain from residual or pollutant substrates, but also enhance the MFC technology for further applications. Therefore, the Special Issue “MFC advances” invites contributions in any aspects related to MFC, such as innovative materials, system designs, microbial communities, biocatalysts interactions, electron transfer, bioremediation, and other related subject to the multidisciplinary field of the MFC. 

Prof. Dr. Valeria Reginatto
Guest Editor

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Keywords

  • microbial fuel cell (MFC)
  • electrogens
  • microbial electron transfer
  • bioelectricity
  • bioremediation
  • desalinisation
  • microbial community
  • electricigens
  • bioelectrochemical processes
  • electroactive microorganisms

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Published Papers (2 papers)

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Research

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11 pages, 2230 KiB  
Article
Neutral Red Film Augments Extracellular Electron Transfer Performed by Clostridium pasteurianum DSM 525
by Ana Clara Bonizol Zani, João Carlos de Souza, Adalgisa Rodrigues de Andrade and Valeria Reginatto
Fermentation 2024, 10(10), 497; https://doi.org/10.3390/fermentation10100497 - 27 Sep 2024
Viewed by 1074
Abstract
Extracellular electron transfer (EET) is key to the success of microbial fuel cells (MFCs). Clostridium sp. often occurs in MFC anode communities, but its ability to perform EET remains controversial. We have employed Clostridium pasteurianum DSM 525 as a biocatalyst in a glycerol-fed [...] Read more.
Extracellular electron transfer (EET) is key to the success of microbial fuel cells (MFCs). Clostridium sp. often occurs in MFC anode communities, but its ability to perform EET remains controversial. We have employed Clostridium pasteurianum DSM 525 as a biocatalyst in a glycerol-fed MFC, designated MFCDSM. We have also followed the EET of this biocatalyst in the presence of a mediator, namely soluble neutral red (NR), soluble methyl viologen (MV), neutral red film (FNR), or methyl viologen film (FMV). MFCDSM provided power and current densities (j) of 0.39 μW·cm−2 and 2.47 μA·cm−2, respectively, which evidenced that the biocatalyst performs direct electron transfer (DET). Introducing 150.0 µM NR or MV into the MFCDSM improved the current density by 7.0- and 3.7-fold (17.05 and 8.45 μA·cm−2), respectively. After 20 cyclic voltammetry (CV) cycles, the presence of FNR in the MFCDSM anodic chamber provided an almost twofold higher current density (30.76 µA·cm−2) compared to the presence of NR in the MFCDSM. Introducing MV or FMV into the MFCDSM anodic chamber gave practically the same current density after 10 CV cycles. The MFCDSM anodic electrode might interact with FMV weakly than with FNR, so FNR is more promising to enhance C. pasteurianum DSM 525 EET within MFCDSM. Full article
(This article belongs to the Special Issue Microbial Fuel Cell Advances)
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Review

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14 pages, 1091 KiB  
Review
Electro-Fermentation for Biofuel and Biochemical Production
by Priya Pilania, Keshani Bhushan and Urmila Gupta Phutela
Fermentation 2025, 11(4), 219; https://doi.org/10.3390/fermentation11040219 - 15 Apr 2025
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Abstract
Electro-fermentation (EF) is an emerging bioprocess with the ability to regulate the metabolism of electrochemically active microorganisms. In various fermentation processes, electrodes perform either as an electron acceptor or donor, facilitating the formation and movement of electrons and protons. The bioelectric activity created [...] Read more.
Electro-fermentation (EF) is an emerging bioprocess with the ability to regulate the metabolism of electrochemically active microorganisms. In various fermentation processes, electrodes perform either as an electron acceptor or donor, facilitating the formation and movement of electrons and protons. The bioelectric activity created by external electrodes enhances the metabolic reactions, resulting in a higher yield of value-added chemicals. The conventional fermentation process has a number of limitations in terms of usability and economic feasibility, whereas electro-fermentation presents a hybrid technology, minimizing redox instabilities and enhancing the metabolic process in general to achieve increased product production and a higher biomass yield. Electrochemically active microorganisms such as Geobacter and Shewanella species can carry out the exchange of electrons with electrodes directly or indirectly by using electron mediators. Furthermore, the integration of microbial fuel cells (MFCs) with microbial electrolysis cells (MECs) precludes the need for external manipulation of the fermentation system as the required change in electrochemical gradient is provided by the MFC counterpart. The major beneficial aspects of electro-fermentation include its role as a potential tool for enhancing the production of value-added compounds. The mixed-culture system clearly had a favorable impact on the synthesis of butyric acid from rice straw. Furthermore, cathodic electro-fermentation (CEF) exhibited benefits over anaerobic fermentation, influencing NADH/NAD+, enabling a higher product titer, and reducing the accumulation of byproducts. Hence, in this review, we emphasize the importance of electro-fermentation over conventional fermentation for biofuel and biochemical production, covering its fundamentals, interactions, types, future challenges, and ability to provide several benefits to boost the fermentation process, such as the process efficiency and product yield, on an industrial scale. Full article
(This article belongs to the Special Issue Microbial Fuel Cell Advances)
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