Special Issue "Yeast, Biofuels, and Value-Added Products 2.0"

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

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 1135

Special Issue Editor

Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
Interests: fermentation; barley; value-added products; flax; toxicology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The demand for renewable fuel sources continues to attract global interest; however, food sources such as cereal grains and sugar crops are the dominant feedstocks for bioethanol production. Significant research has been conducted with regard to investigating alternatives to food-based feedstocks (e.g., lignan-based feedstock) as well as improving process designs to increase bioethanol production yields. Strategies with which to improve bioethanol yields are also being evaluated, including genetic modifications of fermentation organisms and cereal plants.

Value-added bioproducts produced from fermentative processes have also garnered interest. At a commercial scale, biogas produced from bioethanol operations has been used as an internal energy source. In addition, distillers’ grains have traditionally been used as an inexpensive animal feed; however, recent research has investigated methods with which to upgrade and enrich this substrate. Other value-added co-products (biomaterials, fine chemicals, polymers, glycerin, etc.) have also been identified in biofuel production and are of interest to further support a sustainable circular bioeconomy.

The goal of this Special Issue is to publish and curate recent and innovative research regarding advances in yeast genetics, fermentation technologies, processes, and strategies, as well as feedstock selections, to improve bioethanol production. Special interest is given to secondary added-value products, which will also be considered to further support the growth and sustainability of this renewable energy source. If you would like to contribute a review paper, please contact one of the Guest Editors to discuss the topic’s relevance before submitting the manuscript.

This is the second edition of this topic. The first edition, which was incredibly successful, can be viewed at the following link:

Dr. Timothy Tse
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. 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 2600 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.


  • biofuels
  • yeast
  • genetics
  • fermentation
  • enzymatic hydrolysis
  • biorefineries
  • value-added products

Published Papers (1 paper)

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18 pages, 607 KiB  
Bioconversion Study of Olive Tree Biomass Hemicellulosic Hydrolysates by Candida guilliermondii at Different Scales for Ethanol and Xylitol Production
Fermentation 2023, 9(6), 553; https://doi.org/10.3390/fermentation9060553 - 09 Jun 2023
Cited by 1 | Viewed by 895
Hemicellulosic biomass from olive-tree pruning (OTPB) was used as a raw material in order to produce a hemicellulosic hydrolysate to be fermented with the non-traditional yeast Candida guilliermondii FTI 20037 to obtain ethanol and xylitol. The main objectives of this research were to [...] Read more.
Hemicellulosic biomass from olive-tree pruning (OTPB) was used as a raw material in order to produce a hemicellulosic hydrolysate to be fermented with the non-traditional yeast Candida guilliermondii FTI 20037 to obtain ethanol and xylitol. The main objectives of this research were to study the most relevant kinetic parameters involved in the bioconversion process and the correlation between stirred-tank bioreactor and agitated Erlenmeyer flask fermentation. In a first scale-up (using Erlenmeyer flasks) incubated on a rotary shaker at 200 rpm, fermentation assays were performed to determine the most convenient process conditions and the adaptation of the microorganism to the concentrated OTPB and added nutrients culture medium. The best conditions (2.5 kg m3 of initial yeast cells, pH of 5.5 and 30 °C) were set in a bench bioreactor. A comparative study on ethanol and xylitol production was conducted in two scale scenarios, obtaining different results. In the bioreactor, 100% of D-glucose and partially D-xylose were consumed to produce an ethanol yield of 0.28 kg kg1 and an ethanol volumetric productivity of 0.84 kg dm3 h1 as well as a yield and volumetric productivity in xylitol of 0.37 kg kg1 and 0.26 kg dm3 h1, respectively. The kinetic results allowed increasing the action scale and obtaining more real results than the previous steps to enable mini-plant and industrial scaling. Full article
(This article belongs to the Special Issue Yeast, Biofuels, and Value-Added Products 2.0)
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