Albumin dosage

Albumin is a major globular protein in blood plasma, but it is also very present in food products, particularly in egg whites. This molecule plays a fundamental role in many biological functions: it participates in maintaining osmotic pressure, transporting fatty acids, hormones, fat-soluble vitamins and drugs, as well as regulating fluid balance.

In the food and nutraceutical industries, albumin is often added as a source of high-quality protein or used as a texturizing, stabilizing, or emulsifying agent in various formulations. Its presence is also a quality criterion in dietetic or fortified products. In animal nutrition, it allows for the formulation of tailored diets with high biological value.

Why measure albumin levels?

Measuring albumin levels is essential for:

• Evaluate the protein quality of a food (e.g., fortified products, high-protein diets)
• Control the composition of dietary and nutritional formulations
• Check the albumin concentration in food or animal extracts
• Monitor alterations or losses of proteins in products undergoing processing or storage
• Characterizing a functional ingredient in food formulations and supplements

This assay is also relevant for biomarker type analyses in certain matrices (e.g. biological liquids, animal powders) or in the context of nutritional biochemistry research.

Analytical techniques used

YesWeLab offers several validated methods for albumin assay depending on the matrix and the objectives of the analysis:

• Biuret colorimetric method: simple and robust, used for protein-rich matrices.
• BCA (Bicinchoninic Acid Assay) method: more sensitive, suitable for lower concentrations, particularly in complex extracts.
• HPLC (High Performance Liquid Chromatography): used to precisely separate and quantify albumin, particularly in complex formulations, extracts or multi-component mixtures.

These techniques are selected based on the constraints of your project, the desired level of precision, and the matrix to be analyzed.

Examples of analyzed matrices

• Egg whites
• Protein extracts (dairy, vegetable, animal)
• Protein-enriched diet products
• Dietary supplements
• Powders for clinical or sports nutrition
• Processed foods (fortified biscuits, ready-made meals)
• Animal feed, animal meal

Industrial applications

This test is particularly requested by professionals in:

• The agri-food industry: quality control, verification of nutritional labeling, batch standardization
• Clinical and sports nutrition: validation of high-protein or enriched formulas
• Animal nutrition: adjusting protein intake and characterizing ingredients
• Nutraceuticals: formulation of supplements or functional powders
• R&D: development of new protein ingredients or bioavailability studies

A network of expert laboratories for your analyses

At YesWeLab, we provide you with a unique platform to access specialized analytical services, connecting you to a network of rigorously selected partner laboratories. Most of these laboratories are ISO 17025 certified and COFRAC accredited, guaranteeing the reliability and traceability of results.

Our scientific teams handle your requests by precisely analyzing your needs: matrix type, assay objective, regulatory or formulation constraints, etc.
Since 2020, YesWeLab has been supporting manufacturers in all sectors – food, nutraceutical, animal – in their analytical projects, from simple assays to complete characterization studies.

Do you need an albumin test?

Add this analysis to your quote request via our platform or contact our scientific team directly for personalized support.