Fucoidan dosage

Fucoidans are sulfated polysaccharides of marine origin, mainly 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 for the nutraceutical, food and cosmetic industries. The quantification of 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

The dosage of fucoidans can be carried out using several complementary approaches:

• Colorimetry (toluidine blue method) : 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 different fucoidan fractions in complex extracts.
• LC-MS (Liquid Chromatography coupled with Mass Spectrometry) : used for a detailed analysis of the structure and composition of sulfated polysaccharides.

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

Industrial applications and sectors concerned

The dosage of fucoidans is relevant in different sectors:

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

This service complements other analyses specific to marine active ingredients, such as the dosage of polyphenols or dietary fibers .

Matrices analyzed for fucoidans

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

Challenges of standardization and traceability

Fucoidan composition varies depending on the algae species, harvesting area, season and extraction processes. Laboratory determination is therefore essential to: verify the actual claimed sulfated polysaccharide content, 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 relies on a network of more than 200 partner laboratories in France and Europe, accredited ISO 17025 and, for some, COFRAC, to carry out reliable and standard-compliant analyses. Our experts assist each client in choosing the method best suited to their matrices and objectives (quality control, regulatory compliance, R&D). Thanks to our digital platform, you can centralize your analytical needs: online quotes, real-time tracking of your samples, and rapid receipt of results. 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 algae extracts or marine formulations? Entrust your samples to YesWeLab for reliable and accurate fucoidan assays. Request a quote online now for your analyses.