Tannin dosage

Tannins are polyphenols widely distributed throughout the plant kingdom. Found in plants such as grapes, tea, oak, and pomegranates, they are known for their antioxidant, astringent, and protective properties. These compounds play a key role in the sensory quality of foods and beverages, as well as in their biological effects. Tannin analysis allows for the quantification of their content, ensures the standardization of extracts, and guarantees the compliance of products intended for human consumption, nutraceuticals, and animal nutrition.

Analytical methods for the determination of tannins

Tannin analysis can be performed using different approaches, depending on the needs:

• Spectrophotometry, with global methods such as Folin-Denis or Folin-Ciocalteu, which allow an estimation of the total polyphenol content.
• HPLC (high-performance liquid chromatography), which allows for the precise separation and quantification of different types of tannins (hydrolyzable and condensed).

These techniques are sometimes combined to obtain a complete view of the phenolic profile. They are similar to those used for the measurement of flavonoids , anthocyanins , or proanthocyanidins, other phenolic compounds of interest.

Industrial and sectoral applications

Tannin dosage is essential in many areas:

• Human nutrition: monitoring the composition of wines, teas, fruits, vegetables, juices or extracts rich in polyphenols.
• Nutraceutical: formulation of food supplements that enhance the antioxidant and protective effects of tannins.
• Animal nutrition: optimization of formulations enriched with polyphenols for their antimicrobial or digestive effects.
• Cosmetics: integration of tannic extracts into skin care products thanks to their astringent and protective properties.

These applications show that tannin dosage is an essential step in developing and ensuring the safety of functional and innovative products.

Matrices analyzed for tannins

YesWeLab supports tannin analysis in a wide variety of matrices: raw plant extracts, nutraceutical powders, capsules, foods (fruits, teas, wines, cereals), dietary supplements, and cosmetic formulations. Each matrix undergoes specific preparation to eliminate interferences and obtain reliable results.

Quality and compliance issues

Tannin dosage addresses several strategic challenges for manufacturers:

• Standardization of extracts to guarantee a consistent and reproducible composition.
• Quality control of raw materials and finished products.
• Promoting health and nutritional claims related to polyphenols.
• Compliance with regulatory requirements regarding food safety and traceability.

These issues are part of a comprehensive approach to quality control, complemented by other targeted analyses such as the measurement of coumarins or the measurement of phenolic acids.

YesWeLab's expertise in tannin dosage

YesWeLab collaborates with over 200 partner laboratories in France and Europe, accredited to ISO 17025 and COFRAC standards, specializing in physicochemical and nutritional analyses. Depending on your matrices and objectives (quality control, regulatory compliance, product innovation), our experts select the most suitable method. Our digital platform provides a simplified service: online quotes, sample tracking, and rapid results delivery. Since 2020, manufacturers, distributors, and engineering firms have entrusted us with their analyses to ensure the safety and value of their products.

Take action

Do you want to measure the tannin content in your plant extracts, food supplements, beverages, or cosmetic formulations? Entrust your analyses to YesWeLab for reliable, standards-compliant results. Request a quote online today.