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New Electrogenic Microorganism Citrobacter sp. Isolated from Microbial Fuel Cell and Bacterial Characteristics Determination

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  • Hugo Guillermo Jimenez Pacheco

    (Instituto de Investigación e Innovación en Energías Renovables y Medio Ambiente, Universidad Católica de Santa María de Arequipa, Arequipa 04011, Peru)

  • Abdel Alejandro Portocarrero Banda

    (Instituto de Investigación e Innovación en Energías Renovables y Medio Ambiente, Universidad Católica de Santa María de Arequipa, Arequipa 04011, Peru)

  • Eric Ivan Vilca Cayllahua

    (Instituto de Investigación e Innovación en Energías Renovables y Medio Ambiente, Universidad Católica de Santa María de Arequipa, Arequipa 04011, Peru)

  • Lilia Mary Miranda Ramos

    (Instituto de Investigación e Innovación en Energías Renovables y Medio Ambiente, Universidad Católica de Santa María de Arequipa, Arequipa 04011, Peru)

  • Victor Ludgardo Alvarez Tohalino

    (Facultad de Ingeniería de Procesos, Escuela Profesional de Ingeniería Química, Universidad Nacional de San Agustín de Arequipa, Arequipa 04011, Peru)

  • Herbert Jesús Del Carpio Beltran

    (Facultad de Ingeniería y Arquitectura, Escuela Profesional de Ingeniería Industrial, Universidad Continental, Arequipa 04011, Peru)

  • Pavel Kewin Delgado Sarmiento

    (Facultad de Ingeniería de Procesos, Escuela Profesional de Ingeniería Química, Universidad Nacional de San Agustín de Arequipa, Arequipa 04011, Peru)

Abstract

The generation of energy through the transformation of polluting waste is a widely explored field and offers advances in green technologies. One of the promising technologies is Microbial Fuel Cells (MFCs). These cells can contain electroactive microorganisms that transform organic waste into electricity by transferring electrons from their metabolism. In this study, a new bacterium capable of producing electricity from the waste of the poultry sector and using copper electrodes, called Av_G1, was identified and isolated. It is phylogenetically related to Citrobacter freundii and Citrobacter Murlinae . This new strain was identified molecularly, biochemically, and phylogenetically; its physiological and morphological characteristics were also studied through a Scanning Electron Microscope (SEM). Biochemical determination was performed using Simmons Citrate Agar, Lysine Iron Medium (L.I.A.), Motility/Ornithine Test, Methyl Red indicator, Enzymes: oxidase and catalase, and Gram stain test. The phylogenetic inference was deduced by bioinformatics tools (MEGA X, JalView, Clustal Omega) and the genetic databases The Ribosomal Database Project—RDP and the National Center for Biotechnology Information (NCBI). A maximum current potential of 0.645 V, a maximum current density of 168.72 ± 14.07 mA/m 2 , and a power density of 31.05 mW/m 2 were recorded. During the monitoring, the physicochemical parameters were taken: pH, Oxide Reduction Potential (ORP), Dissolved Oxygen (DO), conductivity, Total Solids (TDS), and average temperature were recorded. Therefore, the present study shows a new Gram-negative electrogenic bacterium, which can be used for electrochemical processes and applied in MFC with copper electrodes.

Suggested Citation

  • Hugo Guillermo Jimenez Pacheco & Abdel Alejandro Portocarrero Banda & Eric Ivan Vilca Cayllahua & Lilia Mary Miranda Ramos & Victor Ludgardo Alvarez Tohalino & Herbert Jesús Del Carpio Beltran & Pavel, 2023. "New Electrogenic Microorganism Citrobacter sp. Isolated from Microbial Fuel Cell and Bacterial Characteristics Determination," Energies, MDPI, vol. 16(7), pages 1-13, March.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:7:p:3047-:d:1108618
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    References listed on IDEAS

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    1. Li Guang & Desmond Ato Koomson & Huang Jingyu & David Ewusi-Mensah & Nicholas Miwornunyuie, 2020. "Performance of Exoelectrogenic Bacteria Used in Microbial Desalination Cell Technology," IJERPH, MDPI, vol. 17(3), pages 1-12, February.
    2. Sami G. A. Flimban & Iqbal M. I. Ismail & Taeyoung Kim & Sang-Eun Oh, 2019. "Overview of Recent Advancements in the Microbial Fuel Cell from Fundamentals to Applications: Design, Major Elements, and Scalability," Energies, MDPI, vol. 12(17), pages 1-20, September.
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