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Fermentation
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YBC2025: Yeast in Bioeconomy
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YBC2025: Yeast in Bioeconomy

A special issue of Fermentation (ISSN 2311-5637). This special issue belongs to the section "Microbial Metabolism, Physiology & Genetics".

Deadline for manuscript submissions: 30 November 2025 | Viewed by 727

Special Issue Editors

Dr. Mohamed Koubaa

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Guest Editor
Laboratoire Transformations Intégrées de la Matière Renouvelable (UTC/ESCOM, EA 4297 TIMR), Ecole Supérieure de Chimie Organique et Minérale, 1 Allée du réseau Jean-Marie Buckmaster, 60200 Compiègne, France
Interests: fermentation; emerging processing technologies; valorization of by-products and agro-industrial waste bioprocesses; antioxidant bioactive compounds
Special Issues, Collections and Topics in MDPI journals
Dr. Elia Tomás Pejó

E-Mail Website
Guest Editor
Unit of Biotechnological Processes, IMDEA Energy Institute, 28935 Móstoles, Spain
Interests: bioethanol; fermentation technology; biorefinery; biofuels; nonconventional yeast; bioproducts; lignocellulose; pretreatment technologies; laccase enzymes; yeast improvement; yeast robustness
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The field of yeast-based bioeconomy has become a focal point in biotechnological innovation, offering sustainable solutions that address global challenges related to resource utilization and sustainability. Yeast systems have demonstrated remarkable potential in areas such as metabolic engineering for enhanced biosynthetic pathways, fermentation technology for the production of high-value compounds, and scalable process optimization for industrial applications. The "Yeast in Bioeconomy Conference 2025", held in Compiègne, France, from October 22nd to 24th, brought together leading researchers and industry representatives for the exploration of these topics and the dissemination of groundbreaking advancements.

The link to the conference can be found below: https://ybc.bio/.

This Special Issue of Fermentation welcomes contributions that build upon the discussions and discoveries presented at the conference. We welcome original research articles, reviews, and case studies that address key topics such as the optimization of fermentation processes, downstream processing innovations, bioreactor design, and life cycle and techno-economic assessments of bio-based yeast production systems. We particularly welcome the submission of articles that focus on the industrialization and market integration of yeast-based technologies.

Through this Special Issue, we aim to provide a comprehensive overview of recent developments in yeast-based bioeconomy and foster further advancements in this impactful field. We look forward to receiving your contributions and thank you in advance for your efforts in sharing your research with the broader scientific community.

Dr. Mohamed Koubaa
Dr. Elia Tomás Pejó
Guest Editors

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. Fermentation is an international peer-reviewed open access monthly 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 2100 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

  • yeast bioeconomy
  • fermentation technology
  • techno-economic assessment
  • life cycle analysis
  • process scale-up

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Published Papers (1 paper)

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Research

16 pages, 775 KiB  
Article
Integrated Process Combining High-Temperature Fermentation and Extractive Ethanol Removal via CO2 Stripping
by Jorge Luíz Silveira Sonego, Jaqueline Machado de Moraes, Nayana Simon de Vargas, Anderson Ferreira da Cunha, Rosineide Gomes da Silva Cruz, Antonio José Gonçalves Cruz and Alberto Colli Badino
Fermentation 2025, 11(5), 270; https://doi.org/10.3390/fermentation11050270 - 9 May 2025
Viewed by 286
Abstract
Fermentation at high temperatures may be a viable alternative for ethanol production, especially in tropical climate regions. This work describes the evaluation of ethanol production through extractive fermentation at high temperatures using thermotolerant Kluyveromyces marxianus. An experimental design was applied to assess [...] Read more.
Fermentation at high temperatures may be a viable alternative for ethanol production, especially in tropical climate regions. This work describes the evaluation of ethanol production through extractive fermentation at high temperatures using thermotolerant Kluyveromyces marxianus. An experimental design was applied to assess the effect of temperature on the ethanol removal process by CO2 stripping. Subsequently, kinetic modeling of conventional batch ethanol fermentation at high temperatures was performed, and the hybrid Andrews−Levenspiel model was found to be suitable for describing the kinetics of this process. Experiments were conducted to evaluate ethanol production at high temperatures using thermotolerant yeast, specifically evaluating the effects of different specific CO2 flow rates (ϕ = 1.0, 1.5, and 2.0 vvm) on ethanol stripping. The results indicated that in all the extractive fermentations conducted with K. marxianus, there was faster substrate uptake and earlier substrate exhaustion compared to conventional fermentation. Significant ethanol removal by stripping was achieved using a CO2 flow rate of 1.0 vvm (EFHT1), and complete substrate consumption was observed by the end of 12 h of fermentation. This result highlights the positive effect of temperature on ethanol entrainment. In addition, integrating the CO2 stripping technique with high-temperature fermentation (T = 40 °C) improves process efficiency with a lower gas flow rate. This is advantageous, especially for industrial-scale applications, as it can reduce equipment costs associated with the CO2 feed. Full article
(This article belongs to the Special Issue YBC2025: Yeast in Bioeconomy)
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