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Microbial Technologies for the Production of Bioenergy and Byproducts as a Real Contribution to the Circular Economy

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A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A4: Bio-Energy".

Deadline for manuscript submissions: closed (10 August 2022) | Viewed by 4418

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Special Issue Editor

Prof. Dr. David Eduardo Leiva-Candia

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Guest Editor

Department of Physical Chemistry and Applied Thermodynamics, EPS, Edificio Leonardo da Vinci, Campus de Rabanales, Universidad de Córdoba, Campus de Excelencia Agroalimentario ceiA3, 14014 Córdoba, Spain
Interests: biodiesel; biodiesel production; biofuels; bioenergy; biofuel production

Special Issue Information

Dear Colleagues.

As the guest editor, it is my pleasure to invite you to contribute to this Special Issue entitled “Microbial Technologies for the Production of Bioenergy and Byproducts as a Real Contribution to the Circular Economy”.

As we are all aware, microbial techniques play an important role in reusing waste both from industry and other key sectors. The characteristics of the microbial techniques make the development of this concept strengthen the circular economy in the world, reducing the use of virgin raw materials and extending products’ lifecycle.

In this Special Issue, researchers who base their research on this concept will have room to publish their advances in these techniques. Your contribution may consist of either 1) short communications on waste used as nutrients, fermentation techniques of biofuel production (solid, liquid, or gaseous), etc.; 2) literature reviews based on the same topics; or 3) literature reviews on another research discipline allowing the consolidation of this knowledge.

Finally, the topic can also be extended to researchers investigating the direct utilization of fuels produced by microbial techniques in energy-converting machines or the utilization of byproducts.

Prof. Dr. David Eduardo Leiva-Candia
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. Energies 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 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.

Keywords

Biorefineries
Lifecycle assessment
Biogas
Biodiesel
Liquid fermentation
Solid state fermentation
Microbial oil
Bioethanol
Anaerobic digestion
Dark fermentation
Waste reutilization

Published Papers (2 papers)

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Research

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11 pages, 700 KiB

Open AccessArticle

Bioethanol Production Efficiency from Sorghum Waste Biomass

by Jakub Frankowski, Aleksandra Wawro, Jolanta Batog, Katarzyna Szambelan and Agnieszka Łacka

Energies 2022, 15(9), 3132; https://0-doi-org.brum.beds.ac.uk/10.3390/en15093132 - 25 Apr 2022

Cited by 4 | Viewed by 1917

Abstract

The problem of global warming is still a major issue, alongside shrinking oil reserves. A great alternative to fossil fuels is offered by biofuels, such as bioethanol from lignocellulosic plants. The sorghum biomass can be effectively used in many industrial directions. It is possible to use every part of this plant; the grain can be used for food production and straw can be used for energy purposes, i.e., for bioethanol. The aim of this study was to analyze the possibilities of bioethanol production from five varieties of sorghum biomass, which is a waste product of seed harvesting. The yields of sorghum cultivars in a three-year vegetation period; the amount of cellulose, hemicellulose, and lignin in the biomass of sorghum; and the amount of ethanol obtained per hectare were evaluated. It was observed that the highest average yield for all cultivars, except GK Emese, was found in the second year of the study. The bioethanol yield per hectare from this biomass was the highest for Sweet Caroline and was 9.48 m³∙ha⁻¹. In addition, significant differences were found in the content of lignin and hemicellulose for the varieties tested in all years of the study and for the content of cellulose in the first and third years. The discussed results were confirmed by detailed statistical analyses, including combined matrices of Pearson correlation coefficients (cr_p) varieties and cluster analysis. In summary, the usefulness of the biomass of the studied sorghum varieties for the production of bioethanol was demonstrated. Full article

(This article belongs to the Special Issue Microbial Technologies for the Production of Bioenergy and Byproducts as a Real Contribution to the Circular Economy)

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Review

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15 pages, 1099 KiB

Open AccessReview

Priorities in Bioeconomy Strategies: A Systematic Literature Review

by Christina-Ioanna Papadopoulou, Efstratios Loizou and Fotios Chatzitheodoridis

Energies 2022, 15(19), 7258; https://0-doi-org.brum.beds.ac.uk/10.3390/en15197258 - 02 Oct 2022

Cited by 10 | Viewed by 2030

Abstract

Bioeconomy is an emerging concept and no commonly accepted definition has been given so far. Bioeconomy strategies attempt to cover every aspect of this emerging concept from a different perspective, depending on the country, region, or organisation issuing them. For these reasons, each strategy has its own priority fields depending on the economic, geomorphological, social, ecological, and technological conditions of each country. In this review, an attempt is made to study the priority fields of bioeconomy strategies through a systematic review of the literature. PRISMA analysis was used to review the literature on the priority fields of bioeconomy strategies. The review examined the issue in the rich academic literature of two databases, Scopus and AgEcon. Using a repeatable search process to identify relevant studies in the literature, only 68 publications met the eligibility criteria that were included in the review. The results show that there are trends in the priority fields of bioeconomy strategies in the years 2013–2022. Moreover, the economic and technological development of the respective countries foreshadows their priorities. A successful transition to a bioeconomic model requires the participation of society as a whole, because a sustainable society as a whole requires sustainable and environmentally friendly solutions. The study concludes that governance with global coordination and stakeholder training is needed for successful implementation of bioeconomy strategies. Full article

(This article belongs to the Special Issue Microbial Technologies for the Production of Bioenergy and Byproducts as a Real Contribution to the Circular Economy)

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