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Molecules
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Advances in Sustainable Synthesis
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Advances in Sustainable Synthesis

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Green Chemistry".

Deadline for manuscript submissions: closed (30 September 2020) | Viewed by 23192

Special Issue Editor

Dr. Daniela Lanari

E-Mail Website
Guest Editor
Dipartimento di Scienze Farmaceutiche, Università di Perugia, Via del Liceo 1, 06123 Perugia, Italy
Interests: sustainable chemistry; heterogeneous catalysis; benign reaction media; flow chemistry

Special Issue Information

Dear Colleagues,

The development of sustainable methodologies for the synthesis of fine chemicals or target molecules is growing at a fast pace in the field of green chemistry. Lately, the scientific community has been focused on developing methods for organic transformations that are chemically efficient and environmentally friendly. This Special Issue of Molecules will gather the most recent advances in optimization processes for the synthesis of key molecules. Research papers, as well as reviews, will be considered for publication. This Special Issue will cover all the different aspects of sustainable synthesis, such as the use of recoverable catalysts, the employment of benign solvents and biomass-derived starting materials, and step-economic transformations. Synthetic processes with easy scale-up are also welcome.

Dr. Daniela Lanari
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. Molecules 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 2700 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

  • Sustainable synthesis
  • Catalysis
  • Benign solvents
  • Alternative reaction media
  • Biomass-derived substrates
  • Microwave
  • Flow chemistry
  • Step economy
  • C–H functionalization
  • Waste minimization process
  • Scale-up

Published Papers (2 papers)

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Review

18 pages, 5506 KiB  
Review
Azeotropes as Powerful Tool for Waste Minimization in Industry and Chemical Processes
by Federica Valentini and Luigi Vaccaro
Molecules 2020, 25(22), 5264; https://doi.org/10.3390/molecules25225264 - 12 Nov 2020
Cited by 15 | Viewed by 3951
Abstract
Aiming for more sustainable chemical production requires an urgent shift towards synthetic approaches designed for waste minimization. In this context the use of azeotropes can be an effective tool for “recycling” and minimizing the large volumes of solvents, especially in aqueous mixtures, used. [...] Read more.
Aiming for more sustainable chemical production requires an urgent shift towards synthetic approaches designed for waste minimization. In this context the use of azeotropes can be an effective tool for “recycling” and minimizing the large volumes of solvents, especially in aqueous mixtures, used. This review discusses the implementation of different kinds of azeotropic mixtures in relation to the environmental and economic benefits linked to their recovery and re-use. Examples of the use of azeotropes playing a role in the process performance and in the purification steps maximizing yields while minimizing waste. Where possible, the advantages reported have been highlighted by using E-factor calculations. Lastly azeotrope potentiality in waste valorization to afford value-added materials is given. Full article
(This article belongs to the Special Issue Advances in Sustainable Synthesis)
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Graphical abstract

20 pages, 684 KiB  
Review
Fruit and Vegetable Peels: Utilization of High Value Horticultural Waste in Novel Industrial Applications
by Harsh Kumar, Kanchan Bhardwaj, Ruchi Sharma, Eugenie Nepovimova, Kamil Kuča, Daljeet Singh Dhanjal, Rachna Verma, Prerna Bhardwaj, Somesh Sharma and Dinesh Kumar
Molecules 2020, 25(12), 2812; https://doi.org/10.3390/molecules25122812 - 18 Jun 2020
Cited by 117 | Viewed by 18787
Abstract
Fruits and vegetables are the highly used food products amongst the horticultural crops. These items are consumed uncooked, nominally cooked or fully cooked, according to their nature and cooking process. With the change in diet habits and rising population, the production, as well [...] Read more.
Fruits and vegetables are the highly used food products amongst the horticultural crops. These items are consumed uncooked, nominally cooked or fully cooked, according to their nature and cooking process. With the change in diet habits and rising population, the production, as well as the processing of horticultural crops, has exponentially improved to meet its increasing demand. A large amount of peel waste is generated from fruit and vegetable-based industries and household kitchen and has led to a big nutritional and economic loss and environmental problems. Processing of fruits and vegetables alone generates a significant waste, which amounts to 25–30% of the total product. Most common wastes include pomace, peels, rind and seeds, which are highly rich in valuable bioactive compounds such as carotenoids, enzymes, polyphenols, oils, vitamins and many other compounds. These bioactive compounds show their application in various industries such as food to develop edible films, food industries for probiotics and other industries for valuable products. The utilization of these low-cost waste horticultural wastes for producing the value-added product is a novel step in its sustainable utilization. The present review intends to summarize the different types of waste originating from fruits as well as vegetables peels and highlight their potential in developing edible films, probiotics, nanoparticles, carbon dots, microbial media, biochar and biosorbents. Full article
(This article belongs to the Special Issue Advances in Sustainable Synthesis)
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