Dosage of theaflavins

Theaflavins They result from the oxidation of catechins present in tea leaves and are responsible for the amber color as well as certain organoleptic properties characteristic of this beverage. Beyond their sensory role, they exhibit documented antioxidant, cardiovascular, and anti-inflammatory effects. Measuring theaflavins is therefore essential for standardizing black tea extracts, controlling the quality of nutraceutical formulations, and ensuring the utilization of these bioactive compounds.

Analytical methods for the determination of theaflavins

The assay of theaflavins relies on high-precision chromatography techniques:

• HPLC-DAD (high-performance liquid chromatography with diode array detection), allowing the separation and quantification of the main theaflavins.
• LC-MS (liquid chromatography coupled with mass spectrometry), used for fine characterization and highly sensitive detection, including in complex matrices.

These analytical approaches are in line with methods applied to the quantification of catechins or flavonoids , which are also essential for the characterization of tea extracts and other plants rich in polyphenols.

Industrial and sectoral applications

The dosage of theaflavins is essential in several areas:

• Human nutrition: quality control of black teas, functional drinks and food products enriched with polyphenols.
• Nutraceuticals: formulation and standardization of food supplements that enhance the antioxidant and protective effects of black tea.
• Cosmetics: incorporation of extracts rich in theaflavins into skincare products for their protective properties against oxidative stress.
• Scientific research: study of the physiological effects and characterization of the bioactive mechanisms linked to the consumption of black tea.

These applications demonstrate the importance of this analysis for the industrial valorization of tea polyphenols.

Matrices analyzed for theaflavins

YesWeLab supports the analysis of theaflavins in a wide range of matrices: black tea leaves, dry extracts, plant powders, functional beverages, nutraceutical capsules, and cosmetic formulations. Each matrix undergoes specific preparation to ensure the reliability and reproducibility of the results.

Quality and compliance issues

Quantifying theaflavins helps address several strategic challenges:

• Standardization of black tea extracts to guarantee a consistent polyphenol content.
• Quality control and authenticity of finished products.
• Highlighting health and nutritional claims related to antioxidants.
• Compliance with the safety and traceability standards imposed by the regulatory authorities.

These issues are similar to those encountered in other polyphenolic analyses such as the determination of anthocyanins or the determination of tannins .

YesWeLab's expertise in theaflavin dosage

YesWeLab relies on a network of over 200 partner laboratories in France and Europe, accredited to ISO 17025 and COFRAC standards. Our experts select the most suitable analytical methods based on your objectives: quality control, regulatory compliance, marketing enhancement, or research. Thanks to our digital platform, you can easily manage your analyses: online quotes, sample tracking, and rapid results delivery. Since 2020, numerous manufacturers and distributors have entrusted us with their analyses to guarantee the traceability and quality of their tea extracts and fortified products.

Take action

Do you want to test the theaflavin content of your black tea extracts, beverages, or dietary supplements? Entrust your samples to YesWeLab for reliable, standards-compliant results. Request a quote online today.