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Sustainability
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Green Chemistry: Sustainable Organic Chemistry Synthesis and Bioenergy
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Green Chemistry: Sustainable Organic Chemistry Synthesis and Bioenergy

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Chemical Engineering and Technology".

Deadline for manuscript submissions: closed (15 January 2024) | Viewed by 1945

Special Issue Editor

Prof. Dr. Thiago Barcellos

E-Mail Website
Guest Editor
Instituto de Biotecnologia, University of Caxias do Sul, Caxias do Sul 95070-560, Brazil
Interests: organic chemistry; catalysis and biocatalysts; green synthesis

Special Issue Information

Dear Colleagues,

Organic transformations are vital processes for life from an essential biological point of view and for the development and maintenance of our society. With today's challenges, it is urgent to rethink traditional methodologies, seeking sustainable and safe-by-design alternatives. The Green Chemistry Principles were envisioned to guide the development of less hazardous processes, aiming to minimize or eliminate wastes and hazards in synthetic processes. In addition, biotechnology provides us with powerful tools for greener transformations and renewable energy generation, pursuing the best use of biomass, contributing to the generation of alternative and clean energy sources, and promoting the circular economy.

In this Special Issue, we invite you to submit original research on sustainable organic chemistry synthesis and bioenergy-related transformations. We also invite you to submit critical articles and reviews on the most innovative and impacting studies in the field of organic chemistry synthesis and bioenergy that seek to apply the Green Chemistry Principles in processes.

Indicatively, the following topics are welcomed in the contributions to the present Special Issue: sustainable and green synthesis, catalysis and biocatalysis, biotransformation, organic chemicals products by biotechnology process, sustainable energy production, clean energy, renewable biomass feedstock valorization, clean fuels, green and alternative solvents, alternative energy sources, and metal-free synthetic process.

The inclusion and discussion of the sustainability and Green Chemistry metrics for the new methodologies submitted for this Special Issue are welcome and encouraged.

I look forward to receiving your contributions.

Prof. Dr. Thiago Barcellos
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. Sustainability 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

  • green chemistry
  • sustainable methods
  • circular economy
  • renewable biomass feedstock
  • alternative energy sources
  • catalysis and biocatalysis
  • biotransformation
  • safe-by-design
  • bio-based
  • platform chemicals

Published Papers (2 papers)

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Research

13 pages, 1857 KiB  
Article
Sustainable Biocatalytic Synthesis of a Second-Generation Biolubricant
by María Claudia Montiel, María Gómez, María Dolores Murcia, Salvadora Ortega-Requena, Fuensanta Máximo and Josefa Bastida
Sustainability 2024, 16(4), 1615; https://doi.org/10.3390/su16041615 - 15 Feb 2024
Viewed by 756
Abstract
Background: Biolubricants represent a category of lubricating substances derived from sustainable sources such as vegetable oils, animal fats, and other bio-based materials. They are considered more environmentally friendly than mineral-based lubricants because they are biodegradable and nontoxic. Biolubricants derived from vegetable oils or [...] Read more.
Background: Biolubricants represent a category of lubricating substances derived from sustainable sources such as vegetable oils, animal fats, and other bio-based materials. They are considered more environmentally friendly than mineral-based lubricants because they are biodegradable and nontoxic. Biolubricants derived from vegetable oils or animal fats were used as first-generation biolubricants. They have limited performance at extreme temperatures, both high and low, as well as low oxidative stability. Substitution of the double bonds by branching improves the performance and stability of the resulting second-generation biolubricants. Methods: In the past, the production of these compounds has relied on the chemical pathway. This method involves elevated temperatures and inorganic catalysts, leading to the necessity of additional purification steps, which decreases environmental sustainability and energy efficiency. A more environmentally friendly alternative, the enzymatic route, has been introduced, in accordance with the principles of “Green Chemistry”. Results: In this paper, the esterification of 2-methylhexanoic acid with 2-octyl-1-dodecanol and its optimization were developed for the first time. The synthesis was conducted within a jacketed batch reactor connected to a thermostatic bath in a solvent-free reaction medium and using Lipozyme® 435 as biocatalyst. Conclusions: The high viscosity index value of this new hyperbranched ester (>200, ASTM D2270) suggests that it may be an excellent biolubricant to be used under extreme temperature conditions. Regarding sustainability, the main green metrics calculated point to an environmentally friendly process. Full article
(This article belongs to the Special Issue Green Chemistry: Sustainable Organic Chemistry Synthesis and Bioenergy)
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12 pages, 1421 KiB  
Article
Microwave-Assisted Production of 5-Hydroxymethylfurfural from Fructose Using Sulfamic Acid as a Green Catalyst
by Vinícius Bertoncello Molon, Bruno Luís Ferreira, Carolina Colombo Tedesco, Maria Gabriele Delagustin and Thiago Barcellos
Sustainability 2024, 16(2), 858; https://doi.org/10.3390/su16020858 - 19 Jan 2024
Viewed by 855
Abstract
The development of safe-by-design synthesis of valuable chemicals from biomass derivatives is a key step towards sustainable chemical transformations in both academia and industry. 5-Hydroxymethylfurfural (5-HMF) is a biomass derivative chemical of high commercial interest due to its wide range of chemical and [...] Read more.
The development of safe-by-design synthesis of valuable chemicals from biomass derivatives is a key step towards sustainable chemical transformations in both academia and industry. 5-Hydroxymethylfurfural (5-HMF) is a biomass derivative chemical of high commercial interest due to its wide range of chemical and biofuel applications. In this scenario, the present work contributes to a methodology for producing 5-hydroxymethylfurfural (5-HMF) through fructose dehydration reaction under microwave irradiation. The proposed protocol uses a simple sodium chloride–saturated aqueous-i-PrOH biphasic system and catalysis of sulfamic acid, a low-cost solid Brønsted–Lowry inorganic acid, which presents pivotal features of a sustainable catalyst. A 23 full factorial design was applied to achieve the highest conversion and 5-HMF yield, allowing the identification of the main factors involved in the process. Under the optimized conditions, fructose at the concentration of 120 g L−1 was converted with 91.15 ± 6.98% after 20 min at 180 °C, using 10 mol% of catalyst. 5-HMF was produced in 80.34 ± 8.41% yield and 73.20 ± 8.23% selectivity. Thus, the present contribution discloses a new optimized methodology for converting the biomass derivative fructose to 5-hydroxymethylfurfural (5-HMF). Full article
(This article belongs to the Special Issue Green Chemistry: Sustainable Organic Chemistry Synthesis and Bioenergy)
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