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Utilization of Marine By-Products

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Food Science and Technology".

Deadline for manuscript submissions: 20 June 2026 | Viewed by 886

Special Issue Editors


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Guest Editor
1. Marine Institute, Centre for Aquaculture and Seafood Development, Memorial University of Newfoundland and St. John's, St. John's, NL A1C 5R3, Canada
2. Department of Biochemistry, Memorial University of Newfoundland, St. John’s, NL A1C 5S7, Canada
Interests: upstream bioprocessing; downstream bioprocessing; high-pressure processing (HPP); seafood processing and utilization; drying; recovery of high-value compounds (e.g., chitin/chitosan, astaxanthin, phenolics, omega-3 fatty acids, collagen, high value proteins, and peptides) from marine wastes
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Guest Editor
Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada
Interests: marine bioactives; seafood processing; utilization of processing by-products; sea cucumber; nutrition of food components; natural antioxidants; biodegradable packaging; non-thermal processing
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are delighted to introduce this Special Issue on the "Utilization of Marine By-Products". According to the FAO, up to 70% of the total biomass of fish and marine animals consists of by-products. Although these by-products are abundant in valuable biomolecules, a large portion is still discarded as waste. This presents a significant challenge for processing plants, yet it also opens up remarkable opportunities to convert these materials into high-value components for use in functional foods, nutraceuticals, pharmaceuticals, and cosmeceuticals. In recent years, research into marine by-products has intensified, with efforts focused on the extraction, identification, isolation, and characterization of bioactive compounds. This growing body of work demonstrates the potential of these compounds to contribute to human health, food preservation, and skincare innovations. The articles in this issue highlight cutting-edge advancements in transforming marine waste into valuable products, covering a wide range of macronutrients such as carbohydrates (sulfated polysaccharides), proteins (hydrolysates/peptides), lipids (PUFAs), and minerals, alongside micronutrients and phytochemicals like phenolics, carotenoids, and terpenoids/saponins. Together, these contributions provide valuable insights into the potential applications of marine by-products across the food, pharmaceutical, and nutraceutical sectors.

Research areas may include (but are not limited to) marine bioactives, polysaccharides, lipids, proteins, and by-products, nutrient analysis, and health benefits.

We look forward to receiving your contributions.

Dr. Deepika Dave
Dr. Abul Hossain
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. Applied Sciences 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 bioactives
  • marine polysaccharides
  • marine lipids
  • marine proteins
  • nutrient analysis
  • marine by-products
  • health benefits

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Published Papers (1 paper)

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Review

26 pages, 1244 KB  
Review
Neuroprotective Bioactive Compounds from Marine Algae and Their By-Products Against Cerebral Ischemia–Reperfusion Injury: A Comprehensive Review
by Joon Ha Park
Appl. Sci. 2025, 15(19), 10791; https://doi.org/10.3390/app151910791 - 7 Oct 2025
Viewed by 526
Abstract
Cerebral ischemia–reperfusion (I/R) injury is a leading cause of death and long-term disability worldwide, characterized by a complex interplay of pathophysiological mechanisms and currently limited therapeutic options. This critical unmet need underscores the importance of exploring novel multi-targeted neuroprotective agents. Marine algae represent [...] Read more.
Cerebral ischemia–reperfusion (I/R) injury is a leading cause of death and long-term disability worldwide, characterized by a complex interplay of pathophysiological mechanisms and currently limited therapeutic options. This critical unmet need underscores the importance of exploring novel multi-targeted neuroprotective agents. Marine algae represent a rich and underexplored source of structurally diverse bioactive compounds with promising therapeutic potential against cerebral I/R injury. This comprehensive review systematically summarizes the preclinical evidence on the neuroprotective effects and underlying mechanisms of key bioactive compounds found in marine algae, including polysaccharides (e.g., fucoidan, laminarin, porphyran), carotenoids (e.g., astaxanthin, fucoxanthin, lutein, zeaxanthin), polyphenols (e.g., dieckol, phlorotannins), and sterols (e.g., β-sitosterol). These compounds consistently demonstrate significant efficacy across various in vitro and in vivo models, primarily through multifaceted actions encompassing anti-excitotoxic, antioxidant, anti-inflammatory, and anti-apoptotic effects, as well as the modulation of crucial signaling pathways and preservation of blood–brain barrier integrity. While the existing preclinical evidence is highly promising, successful clinical translation necessitates further rigorous research to overcome challenges related to precise molecular understanding, translational relevance, pharmacokinetics, and safety. Beyond their pharmacological significance, the sustainable utilization of marine by-products as renewable sources of bioactive agents further highlights their dual value, offering not only novel therapeutic avenues for cerebral I/R injury but also contributing to marine resource valorization. Full article
(This article belongs to the Special Issue Utilization of Marine By-Products)
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