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Sustainable Chemistry for a Circular Economy

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 (31 January 2019) | Viewed by 5648

Special Issue Editors


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Guest Editor
Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
Interests: bio-based solvents; solvent effects in organic synthesis
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
Interests: bio-based products; clean synthesis; bio-based polymers; platform molecules
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
Interests: green chemistry; heterogeneous catalysis; circular economy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The transition to a circular economy is being spearheaded by China and the European Union, where legislative measures are being introduced to eliminate excessive waste. At the same time, it is important to encourage the reuse, recycling, and renewal (e.g., biodegradation) of products. The development of new materials and the redesign of components are important to extend the lifespans of products, permit the separation of composites, and allow the complete biodegradation of plastics that cannot otherwise be recycled. The appropriate usage of resources is also important, making use of renewable materials and wastes to create sustainable products.

This Special Issue will bring together researchers from different disciplines with the purpose of accelerating the advances that will enable a circular economy. Contributions are welcome from chemistry, biology, material science, product design, policy, and the environmental sciences. We welcome submissions of original research and reviews if they address waste reduction (including the use of waste to make chemicals and materials), or eco-design of (composite) materials and products, or the simplification or improvement of end-of-life treatments.

References:

J. Sherwood, J.H. Clark, T.J. Farmer, L. Herrero-Davila and L. Moity. Recirculation: A New Concept to Drive Innovation in Sustainable Product Design for Bio-Based Products. Molecules, 2017, 22, 48.

J.H. Clark, T.J. Farmer, L. Herrero-Davila and J. Sherwood. Circular economy design considerations for research and process development in the chemical sciences. Green Chemistry, 2016, 18, 3914.

V.G. Zuin, Circularity in green chemical products, processes and services: Innovative routes based on integrated eco-design and solution systems. Current Opinion in Green and Sustainable Chemistry, 2016, 2, 40.

Dr. James Sherwood
Dr. Thomas J. Farmer
Prof. James H. Clark
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. 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

  • Circular economy
  • eco-design
  • sustainable chemistry
  • green chemistry
  • renewable resources
  • waste valorization
  • biodegradable materials
  • biomass cascading
  • self-healing polymers

Published Papers (1 paper)

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Research

15 pages, 607 KiB  
Article
Efficacy from Different Extractions for Chemical Profile and Biological Activities of Rice Husk
by Truong Ngoc Minh, Tran Dang Xuan, Ateeque Ahmad, Abdelnaser Abdelghany Elzaawely, Rolf Teschke and Truong Mai Van
Sustainability 2018, 10(5), 1356; https://doi.org/10.3390/su10051356 - 27 Apr 2018
Cited by 18 | Viewed by 4761
Abstract
Rice husk is a by-product produced abundantly in rice production but it has low commercial value and causes environmental pollution. This study was conducted to examine different extracting solvents and conditions to optimize the efficacy of antioxidant and antimicrobial potentials, and chemical components [...] Read more.
Rice husk is a by-product produced abundantly in rice production but it has low commercial value and causes environmental pollution. This study was conducted to examine different extracting solvents and conditions to optimize the efficacy of antioxidant and antimicrobial potentials, and chemical components in rice husk. By the use of distilled water at 100 °C, the ethyl acetate (EtOAc) extract was potent in both total phenolic content (TPC), total flavonoid content (TFC), and DPPH scavenging activity. The treatment of either ethyl acetate (100 °C, 1 h), combined with MeOH 100%, showed the highest percent of lipid peroxidation inhibition (LPI) (86%), meaning that the strongest antioxidant activity was by the β-carotene bleaching method. The treatment of distilled water at room temperature possessed the strongest antioxidant activity in the assay of the reducing power. The use of dried samples at 100 °C for 2 h, combined with methanol (MeOH) 10%, provided the most potent antimicrobial activities against Escherichia coli, Klebsiella pneumoniae, Listeria monocytogenes, Bacillus subtilis, and Proteus mirabilis. The results suggested that the EtOAc extract from rice husk could be a potential source of natural antioxidants. In general, the use of temperature 100 °C for 2 h, combined with either EtOAc or 10% MeOH, can optimize chemical components and antioxidant and antimicrobial capacities in rice husk. Principal constituents putatively identified by gas chromatography–mass spectrometry (GC–MS) revealed the presence of momilactones A and B (MA and MB, respectively), phenols, phenolic acids, and long-chain fatty acids, although yields of these compounds varied among extracts. The bioactive MA and MB were found in most of the extracts, except distilled water and MeOH ≤ 50%, at any temperature. Findings of this study provided optimal conditions for future production at an industrial scale for rice husk to exploit its potent biological properties. It thus helps to increase the economic value and reduce the disposal burden and environmental troubles caused by rice husk. Full article
(This article belongs to the Special Issue Sustainable Chemistry for a Circular Economy)
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