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Applied Sciences
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Microbial Enzymes, Fuels, and Industrial Chemicals
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Microbial Enzymes, Fuels, and Industrial Chemicals

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Microbiology".

Deadline for manuscript submissions: closed (20 October 2023) | Viewed by 999

Special Issue Editor

Prof. Dr. Yong-Deok Jeon

E-Mail Website
Guest Editor
Department of Korean Pharmacy, Woosuk University, Wanju-Gun 55338, Republic of Korea
Interests: microbiome; pharmakognosy; pharmacology; natural product; chemistry; colitis; cell biology; inflammation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Special Issue "Microbial Enzymes, Fuels, and Industrial Chemicals" focuses on the use of microbial enzymes and biotechnological processes for the production of fuels, combustible chemicals, and other forms of energy.

The articles in the issue cover various topics such as the use of enzymes for biofuel production, the development of new biocatalysts for industrial processes, and the use of microbial consortia for the production of bio-based chemicals.

The issue highlights the potential of microbial enzymes and biotechnological processes in the sustainable production of fuels and chemicals, which can help reduce reliance on non-renewable resources and mitigate environmental impacts.

Overall, the Special Issue provides valuable insights into the current state and future prospects of using microbial enzymes and biotechnological processes for the production of fuels, combustible chemicals, and other forms of energy.

Prof. Dr. Yong-Deok Jeon
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • microbial enzymes
  • biofuels
  • industrial chemicals
  • enzyme production
  • metabolic engineering
  • biocatalysis
  • microbial biotechnology
  • enzymatic hydrolysis
  • bioconversion
  • fermentation
  • biomass conversion
  • enzyme kinetics
  • protein engineering
  • bioenergy
  • biorefinery

Published Papers (1 paper)

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Research

15 pages, 3108 KiB  
Article
Novel Microfluidic Septum to Optimize Energy Recovery in Single-Chamber Microbial Fuel Cells
by Giacomo Spisni, Giulia Massaglia, Valentina Bertana, Nicolò Vasile, Fabrizio C. Pirri, Stefano Bianco and Marzia Quaglio
Appl. Sci. 2023, 13(20), 11423; https://doi.org/10.3390/app132011423 - 18 Oct 2023
Viewed by 781
Abstract
This study proposes a redesign of asymmetric single-chamber microbial fuel cells (a-SCMFCs) with the goal of optimizing energy production. In the present work, the new approach is based on the introduction of a novel intermediate microfluidic septum (IMS) inside the electrolyte chamber. This [...] Read more.
This study proposes a redesign of asymmetric single-chamber microbial fuel cells (a-SCMFCs) with the goal of optimizing energy production. In the present work, the new approach is based on the introduction of a novel intermediate microfluidic septum (IMS) inside the electrolyte chamber. This IMS was designed as a relatively simple and inexpensive method to optimize both electrolyte flow and species transfer inside the devices. a-SCMFCs, featuring the IMS, are compared to control cells (IMS-less), when operated with sodium acetate as the carbon energy source. Performances of cells are evaluated in terms both of maximum output potential achieved, and energy recovery (Erec) as the ratio between the energy yield and the inner electrolyte volume. The a-SCMFCs with the novel IMS are demonstrated to enhance the energy recovery compared to control cells exhibiting Erec values of (37 ± 1) J/m3, which is one order of magnitude higher than that achieved by control cells (3.0 ± 0.3) J/m3. Concerning the maximum output potential, IMS cells achieve (2.8 ± 0.2) mV, compared to control cells at (0.68 ± 0.07) mV. Furthermore, by varying the sodium acetate concentration, the Erec and maximum potential output values change accordingly. By monitoring the activity of a-SCMFCs for over one year, the beneficial impact of the IMS on both the initial inoculation phase and the long-term stability of electrical performance are observed. These improvements support the effectiveness of IMS to allow the development of efficient biofilms, likely due to the reduction in oxygen cross-over towards the anode. Electrochemical characterizations confirm that the presence of the IMS impacts the diffusion processes inside the electrolytic chamber, supporting the hypothesis of a beneficial effect on oxygen cross-over. Full article
(This article belongs to the Special Issue Microbial Enzymes, Fuels, and Industrial Chemicals)
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