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Marine Environmental Research on Protists in the Bioeconomy Innovations

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 (1 April 2022) | Viewed by 7827

Special Issue Editor


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Guest Editor
Institute of Marine Sciences, National Research Council (ISMAR-CNR), Arsenale 101-104, Castello 2737F, 30122 Venice, Italy
Interests: seaweeds; applied phycology; marine algal diversity; bio-based products; circular economy

Special Issue Information

Dear Colleagues,

The world’s seas and oceans contain some of the greatest biodiversity on the planet, which is present in a wide range of habitats from the coasts to the deep sea. Marine environments are incredibly varied, and these conditions result in marine organisms producing bioactive molecules that have significant potential for use in biotechnology-enabled applications, generating novel sources of natural products that can be used in an array of high-value-added products and processes.

A range of bioactive compounds extracted from marine organisms are already of great interest for new applications for industrial enzymes, functional foods, cosmeceuticals, pharmaceuticals, biomaterials, bioprocessing, and medical devices.

Among the various marine organisms, Protists include a group of particularly interesting organisms both for their functional aspects and for the diversity of compounds that can be obtained.

In this framework, Sustainability seeks original manuscripts for a Special Issue on ‘‘Marine Environmental Research on Protists in Bioeconomy Innovations’’. The Special Issue is dedicated to enhancing the role that marine protists (such as micro- and macroscopic organisms) play in different technologies, both through their direct use and through that of the bio-based products obtained from them, and in pursuing the principles of the Bioeconomy and of the Sustainable Development Goals. The aim of this Special Issue is to present an up-to-date overview of these topics, from a broad perspective, including conceptual, methodological, and case-based perspectives.

Studies concerning the employment of Protists in the exploitation of biomass valorization, recycling of waste, and renewable energy provision, as well as pharmaceutical, nutraceutical, food supply, agro-zootechnic, and climate change fields are welcome. We also greatly encourage original papers, reviews, and short communications, as well as real-case studies.

Papers selected for this Special Issue will be subject to a rigorous peer-review procedure and will be published in open-access format in Sustainability with the aim of the rapid and wide dissemination of research results. 

Dr. Simona Armeli Minicante
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

  • marine protists
  • bioeconomy
  • biomass valorization
  • marine resource applications
  • bio-based products
  • high-value-added products
  • technological innovation system and processes
  • functional compounds
  • biotechnological applications
  • bioprocess technology
  • sustainable development goals

Published Papers (2 papers)

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Research

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15 pages, 1054 KiB  
Article
Conventional vs. Innovative Protocols for the Extraction of Polysaccharides from Macroalgae
by Damiano Spagnuolo, Antonio Di Martino, Vincenzo Zammuto, Simona Armeli Minicante, Antonio Spanò, Antonio Manghisi, Concetta Gugliandolo, Marina Morabito and Giuseppa Genovese
Sustainability 2022, 14(10), 5750; https://doi.org/10.3390/su14105750 - 10 May 2022
Cited by 5 | Viewed by 2201
Abstract
Macroalgae are one of the most environmentally friendly resources, and their industrial by-products should also be sustainable. Algal polysaccharides represent valuable products, and the definition of new eco-sustainable extraction processes, ensuring a safe and high-quality product, is a new goal in the context [...] Read more.
Macroalgae are one of the most environmentally friendly resources, and their industrial by-products should also be sustainable. Algal polysaccharides represent valuable products, and the definition of new eco-sustainable extraction processes, ensuring a safe and high-quality product, is a new goal in the context of reducing the carbon footprint. The aim of the present work was to determine the influence of the extraction methodology on the properties and structure of the polysaccharides, comparing conventional and innovative microwave-assisted methods. We focused on extraction times, yield, chemical composition and, finally, biological activities of raw polymers from three macroalgal species of Chlorophyta, Rhodophyta and Phaeophyceae. The main objective was to design a sustainable process in terms of energy and time savings, with the aim of developing subsequent application at the industrial level. Extraction efficacy was likely dependent on the physico-chemical polysaccharide properties, while the use of the microwave did not affect their chemical structure. Obtained results indicate that the innovative method could be used as an alternative to the conventional one to achieve emulsifiers and bacterial antiadhesives for several applications. Natural populations of invasive algae were used rather than cultivated species in order to propose the valorization of unwanted biomasses, which are commonly treated as waste, converting them into a prized resource. Full article
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Review

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22 pages, 3222 KiB  
Review
Bio-Based Products from Mediterranean Seaweeds: Italian Opportunities and Challenges for a Sustainable Blue Economy
by Simona Armeli Minicante, Lucia Bongiorni and Amelia De Lazzari
Sustainability 2022, 14(9), 5634; https://doi.org/10.3390/su14095634 - 7 May 2022
Cited by 10 | Viewed by 5055
Abstract
Seaweeds are attracting increasing attention as an alternative healthy food and renewable drugs source and as agents of climate change mitigation that provide essential ecosystem services. In this context, seaweeds represent marine resources capable of supporting and pursuing the objectives of the Sustainable [...] Read more.
Seaweeds are attracting increasing attention as an alternative healthy food and renewable drugs source and as agents of climate change mitigation that provide essential ecosystem services. In this context, seaweeds represent marine resources capable of supporting and pursuing the objectives of the Sustainable Blue Economy and the Bio-Based Circular Economy. In this review, we analyze the state of seaweed bio-based products and research on the Mediterranean Sea from the last 20 years. Results of this analysis show a large number of investigations focusing on antimicrobial, antioxidant and anti-inflammatory activities compared to on biofuels and bioplastics. Attempts at seaweed farming, although generally very limited, are present in Israel and some North African countries. Lastly, we focus on the Italian situation—including research, companies and legislation on seaweed production—and we discuss gaps, perspectives and challenges for the potential development of a sustainable seaweed industry according to the Sustainable Blue Economy. Full article
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