ArticlePhytochemical analysis : PCA2022
Advancing quantification methods for polyphenols in brown seaweeds-applying a selective qNMR method compared with the TPC assay.
Article in Phytochemical analysis : PCA, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 28 citations in OpenAlex.
- Review
- Impact of ripening on the distribution of jackfruit polyphenol fractions and their inhibitory activities against metabolic enzymes.Food chemistry: X · 2026Article
- Fucoidan and alginate from brown seaweeds: extraction, structural diversity, biocompatibility, biodegradability, and biomedical applications.Frontiers in plant science · 2026Review
- Dynamic Changes in Jackfruit (Antioxidants (Basel, Switzerland) · 2025Article
- Influence of a Very High-Molecular Weight Fucoidan fromMarine drugs · 2025Article
- Ultrasonic-Assisted Water-Rich Natural Deep Eutectic Solvents for Sustainable Polyphenol Extraction from Seaweed: A Case Study on CultivatedACS sustainable chemistry & engineering · 2024Article
- Improvement of Alginate Extraction from Brown Seaweed (Marine drugs · 2024Article
- An Eco-Friendly Extraction and Purification Approach for Obtaining Active Ingredients for Cosmetics from Two Marine Brown Seaweeds.Marine drugs · 2024Article
- Rapid and cost-efficient microplate assay for the accurate quantification of total phenolics in seaweeds.Food chemistry. Molecular sciences · 2023Article
- First Insight into the Neuroprotective and Antibacterial Effects of Phlorotannins Isolated from the Cell Walls of Brown AlgaeAntioxidants (Basel, Switzerland) · 2023Article
- Advancing quantification methods for polyphenols in brown seaweeds-applying a selective qNMR method compared with the TPC assay.Phytochemical analysis : PCA · 2022Article
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
Abstract
introductionBrown seaweeds are a sustainable biomass with a potential for various industrial applications. Polyphenols are an important contributor to this potential.
objectiveThe aim was total quantification of polyphenols in brown seaweeds from different tidal zones, using a selective
methodqNMR was performed with integration of selected peaks in the aromatic region (7-5.5 ppm). Deselection of non-polyphenolic
resultsSelective qNMR and the TPC assay showed similar results for the three sublittoral growing species from the Laminariaceae; lower amounts for Laminaria hyperborea and Laminaria digitata (qNMR: 0.4%-0.6%; TPC: 0.6%-0.8%, phloroglucinol equivalents (PGE), dry weight (DW)) and higher amounts for Saccharina latissima (qNMR: 1.2%; TPC: 1.5%, PGE, DW). For the eulittoral Fucaceae, Fucus vesiculosus (qNMR: 1.1%; TPC: 4.1%; PGE, DW) and Ascophyllum nodosum (qNMR: 0.9%; TPC: 2.0%; PGE, DW), the TPC results were found to be up to three times higher than the qNMR results. The
conclusionThe TPC assay provided similar polyphenolic amounts to the selective qNMR method for sublittoral species. For eulittoral growing species, the TPC method showed amounts up to three times higher than the qNMR method-most likely illustrating the lack of selectivity in the TPC assay.
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