Fucoidan dosage

Fucoidans are sulfated polysaccharides of marine origin, primarily extracted from brown algae such as Fucus vesiculosus , Undaria pinnatifida , or Laminaria japonica . These bioactive compounds are studied for their anti-inflammatory , anticoagulant , antioxidant , and immunomodulatory , making them ingredients of major interest to the nutraceutical, food, and cosmetic industries. Quantifying fucoidans is essential to ensure the purity, traceability, and efficacy of extracts and formulations incorporating these marine polysaccharides.

Analytical methods for the determination of fucoidans

Fucoidans can be measured using several complementary approaches:

• Colorimetry (toluidine blue method) : a simple and rapid method for the determination of sulfated polysaccharides, based on the formation of a colored complex measured spectrophotometrically.
• HPLC (High Performance Liquid Chromatography) : allows the separation and quantification of the different fucoidans fractions in complex extracts.
• LC-MS (Liquid Chromatography coupled with Mass Spectrometry) : used for detailed analysis of the structure and composition of sulfated polysaccharides.

These analytical approaches offer precision tailored to the needs of manufacturers, complementing other methods available in the YesWeLab catalogue, such as HPLC and LC-MS/MS.

Industrial applications and sectors concerned

Fucoidan assays are relevant in various sectors:

• Nutraceuticals : formulation and standardization of food supplements based on brown algae extracts for immune, cardiovascular and metabolic support.
• Human nutrition : valorization of functional marine ingredients integrated into drinks, snacks or fortified products.
• Animal nutrition : addition of marine extracts to improve the health and performance of livestock.
• Cosmetics : incorporation into anti-aging and moisturizing products due to their protective effects on the skin.

This service complements other analyses specific to marine assets, such as the measurement of polyphenols or dietary fibers .

Matrices analyzed for fucoidans

Fucoidans can be quantified in a wide variety of matrices: dried brown algae extracts, concentrated marine formulations, powders and functional ingredients, dietary supplements in capsule or tablet form, and algae-based beverages and enriched products. Analytical methods are adapted according to the matrix to ensure accurate and reproducible results.

Challenges of standardization and traceability

The fucoidan composition varies depending on the seaweed species, the harvesting area, the season, and the extraction methods. Laboratory testing is therefore essential to: verify the actual claimed content of sulfated polysaccharides, ensure consistency between production batches, guarantee regulatory compliance of products placed on the market, and strengthen consumer and distributor confidence. These challenges are comparable to those encountered for other bioactive polysaccharides such as total fiber or sesquiterpene coumarins .

YesWeLab's expertise in fucoidan dosage

YesWeLab leverages a network of over 200 partner laboratories in France and Europe, accredited to ISO 17025 and, in some cases, COFRAC, to perform reliable and standards-compliant analyses. Our experts guide each client in selecting the most suitable method for their matrices and objectives (quality control, regulatory compliance, R&D). Our digital platform allows you to centralize your analytical needs: online quotes, real-time sample tracking, and rapid results delivery. Since 2020, numerous manufacturers and distributors have trusted us to secure and enhance the value of their marine products.

Take action

Do you want to guarantee the quality and traceability of your seaweed extracts or marine formulations? Entrust your samples to YesWeLab for reliable and precise fucoidan analysis. Request a quote online now for your analyses.