ArticleFoods (Basel, Switzerland)2025
Optimized Extraction Protocols for Bioactive Antioxidants from Commercial Seaweeds in Portugal: A Comparative Study of Techniques.
Article in Foods (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Green extraction approach for green microalga Tetraselmis tetrahele: Enhanced phenolic yield and bioactivity via Ultrasound-Assisted extraction.Ultrasonics sonochemistry · 2026Article
- Extraction Methods Shape the Phenolic Composition and Bioactivities of Defatted MoroccanAntioxidants (Basel, Switzerland) · 2025Article
- Extraction of Marine Bioactive Compounds from Seaweed: Coupling Environmental Concerns and High Yields.Marine drugs · 2025Review
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Authors and funding
9 authors.
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Abstract
This study aimed to optimize the extraction conditions for a valuable source of antioxidants: seaweed. Therefore, ten seaweed samples were subjected to a solid-liquid extraction (SLE), where the extraction conditions (biomass (g): solvent (mL) ratio, temperature, and time) were optimized using response surface methodology (RSM). The seaweeds were also subjected to subcritical water extraction (SWE) (140 and 190 °C) and ultrasound-assisted extraction (UAE) (10 and 20 min). The antioxidant capacity of the extracts was determined through the ferric-reducing antioxidant power and the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid). The total phenolic content revealed the significance of temperature and biomass; solvent ratio parameters in the extraction process with higher conditions generally promoting the release of phenolic compounds. Furthermore, applying RSM allowed for the identification of optimal conditions and the establishment of predictive models that can be valuable in industrial-scale extraction processes. The antioxidant potency composite index (APCI) shows that SWE at 190 °C stands out, with
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