The Extraction and Application of Functional Components in Algae

A special issue of Marine Drugs (ISSN 1660-3397). This special issue belongs to the section "Marine-Derived Ingredients for Drugs, Cosmeceuticals and Nutraceuticals".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 1168

Special Issue Editors


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REQUIMTE/LAQV-ISEP, Instituto Superior de Engenharia do Porto, Porto, Portugal
Interests: algae; natural products; bioactivities; antimicrobial tests
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Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, University of Vigo, E-32004 Ourense, Spain
Interests: algae; food chemistry; food technology; bioactive compounds; analytical techniques; natural food products; natural cosmetics; emergent technologies; green processes; sustainability; bioinformatics; chemical engineering; synergy; antagonism; natural and synthetic antioxidants; mathematical modeling; biological responses; toxicology
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REQUIMTE–LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 431, 4249-015 Porto, Portugal
Interests: seaweeds; medicinal plants; secondary metabolites; bioactivities; green extraction processes; nanotechnology
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REQUIMTE–LAQV, School of Engineering, Polytechnic Institute of Porto, R. Dr. António Bernardino de Almeida 431, 4200-072 Porto, Portugal
Interests: mental disorders; nanomaterials; surface chemistry processes; diagnosis-based methods; biosensors; DNA-based sensors; genosensors
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Special Issue Information

Dear Colleagues,

Algae, with their different species and biochemical compositions, provide a rich source of functional components such as polysaccharides, polyphenols, pigments, fatty acids, vitamins and minerals. These components exhibit a spectrum of bioactivities, ranging from antioxidant and anti-inflammatory properties to neuroprotective and antitumor effects. Yet, given the vast diversity of these metabolites and their wide distribution in seaweed, there is a need for updated knowledge on their extraction, characterization and study.

In this Special Issue, we intend to examine the complex processes involved in extracting functional components from algae, as well as their diverse applications. Original articles and reviews that explore innovative extraction techniques with a focus on optimized yields and/or bioactive potential, advanced analytical methods for the characterization and quantification of functional components extracted from algae and applications are welcome.

Dr. Aurora Silva
Dr. Miguel Ángel Prieto Lage
Dr. Clara Grosso
Dr. Maria Fátima Sá Barroso
Guest Editors

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Keywords

  • algae functional components
  • extraction of bioactive molecules
  • health benefits
  • nutraceuticals
  • applications (food, pharmaceutical, wellness and care, etc.)

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Published Papers (1 paper)

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Research

21 pages, 1301 KiB  
Article
New Green Biorefinery Strategies to Valorize Bioactive Fractions from Palmaria palmata
by Melis Cokdinleyen, Gloria Domínguez-Rodríguez, Huseyin Kara, Elena Ibáñez and Alejandro Cifuentes
Mar. Drugs 2024, 22(10), 467; https://doi.org/10.3390/md22100467 - 11 Oct 2024
Cited by 1 | Viewed by 911
Abstract
A biorefinery process was developed to isolate phycobiliproteins, sulfated polysaccharides, and phenolic compounds from Palmaria palmata. The extraction process was carried out in three stages using ultrasound-assisted extraction (UAE) and pressurized liquid extraction (PLE) integrated with different natural deep eutectic solvents (NaDESs). [...] Read more.
A biorefinery process was developed to isolate phycobiliproteins, sulfated polysaccharides, and phenolic compounds from Palmaria palmata. The extraction process was carried out in three stages using ultrasound-assisted extraction (UAE) and pressurized liquid extraction (PLE) integrated with different natural deep eutectic solvents (NaDESs). In general, PLE provided higher phycobiliprotein contents than UAE in the first step of the process. In fact, the hydrolysis product of the PLE-NaDES extracts achieved a higher antioxidant capacity than that of the UAE-NaDES extracts. Particularly, glycerol:glucose (2:1) with 50% water in combination with PLE was the most suitable NaDES to recover the highest phycobiliprotein, protein, and sulfated polysaccharide contents from Palmaria palmata in the first and second steps of the biorefinery process. Finally, a PLE-NaDES using choline chloride:glycerol (1:2) with 60% water as the NaDES was employed for the recovery of antioxidant and neuroprotective phenolic compounds from the residue of the second step, obtaining a higher total phenolic content than employing PLE with ethanol/water (70:30, v/v) as the extraction solvent. Moreover, a forced stability study revealed that the NaDESs provided a protective effect compared to the water extracts against the degradation of phycobiliproteins, preserving their color over time. This study contributes to the recovery of high-value components from an undervalued biomarine source through a sustainable biorefinery process. Full article
(This article belongs to the Special Issue The Extraction and Application of Functional Components in Algae)
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