Reliable tests for the detection of milk in food



More and more people suffer from milk allergies. It is important to note that milk allergy is not the same as lactose intolerance. The cause of lactose intolerance is a deficiency of an enzyme that degrades lactose (milk sugar). Milk allergy, on the other hand, is a true food allergy which is caused by allergenic constituents of milk proteins.

Cow’s milk contains several proteins that have an allergic potential. The most important ones are casein and ß-lactoglobulin.


One of the major allergens in milk is casein. It plays an important role in cheese production and is mainly present in cheese, quark, yoghurt, cream and butter. Moreover, casein is present in bakery goods, chocolate, wine and meat products. Since the protein casein is not specific for cow’s milk, it is also present in sheep’s milk, goat milk and other types of milk.


ß-lactoglobulin is a whey protein. It is present in fresh milk and in hydrolysed dairy products such as baby food. The allergy to ß-lactoglobulin usually occurs in children, while adults are more often allergic to casein. Since ß-lactoglobulin is not heat-stable, allergic people often tolerate cooked dairy products. In addition, products made from sheep or goat milk can be well tolerated.

As an allergen, milk is subject to labelling in many countries. In order to ensure a product that is safe for allergic people, it is important to test food and surfaces during the production process.

TargetRecommended test kit
Quantification of caseinRIDASCREEN®FAST Casein
Quantification of ß-lactoglobulinRIDASCREEN®FAST ß-Lactoglobulin
Quantification of ß-lactoglobulin in hydrolyzed dairy productsRIDASCREEN® ß-Lactoglobulin
Quantification of total milk proteins (casein and ß-lactoglobulin)RIDASCREEN®FAST Milk
Qualitative detection of milk residues or contaminationsLateral Flow Milk

Product portfolio

ProductDescriptionNo. of tests/amountArt. No.

RIDASCREEN®FAST Milk is a sandwich enzyme immunoassay to quantify milk proteins (casein and ß-lactoglobulin) in food containing whey, milk or milk powder such as sausages, ice cream, chocolate, bakery goods, cake and bread mix, soups, sauces, …

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Microtiter plate with 48 wells (6 strips with 8 removable wells each) R4652
RIDASCREEN®FAST β-Lactoglobulin

RIDASCREEN®FAST β-Lactoglobulin is a sandwich enzyme mmunoassay for the quantitative analysis of native and processed β-lactoglobulin in rice crispies, chocolate and sausage.

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Microtiter plate with 48 wells (6 strips with 8 removable wells each) R4912
RIDASCREEN® β-Lactoglobulin

RIDASCREEN® β-Lactoglobulin is a competitive enzyme immunoassay for the quantitative analysis of β-lactoglobulin in hydrolyzed milk products including hypoallergenic baby food. The assay is calibrated to  hydrolyzed β-lactoglobulin check …

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Microtiter plate with 96 wells (12 strips with 8 removable wells each) R4901

RIDASCREEN®FAST Casein is a sandwich enzyme immunoassay for the quantitative analysis of casein in food like bakery goods, cake and bread mix, non-hydrolyzed milk-based infant formula, ice cream, beverages, chocolate, wine and sausages.

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Microtiter plate with 48 wells (6 strips with 8 removable wells each) R4612
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ProductDescriptionNo. of tests/amountArt. No.
bioavid Lateral Flow Milk

The Lateral Flow Milk assay is used for the qualitative detection of milk and milk residues in environmental / surface samples (e.g. in food production lines). The assay is also applicable for food samples. The assay is applied for the detection of …

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– BL623-10: 10 x test strips (10 determinations)
– BL623-25: 25 x test strips (25 determinations)
BL623-10 / BL623-25
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