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Faq Storing allergens

Storing allergens

Our whole cultures as well as the mite bodies are active pharmaceutical ingredient (API) starting materials. This means that these materials can be used for further processing, such as extraction procedures under GMP pharmaceutical requirements, for example, by allergen vaccine producers and diagnostic companies. The responsibility for the extraction procedure under GMP lies with our clients. Our quality systems incorporate the important aspects of GMP standards to meet regulations and make sure that you will receive source material with the best fit to your application.
The storage time depends on the production date and type of products. Most of our allergens can be stored for approximately 5 years in a -20ºC freezer.
We do not recommend to store the solution with PBS at -20ºC. By using PBS as a buffer and storing at -20ºC you will create phosphate acid and phosphate acid can damage the proteins. If you are going to use PBS buffer, you can store it in a refrigerator at 2-8ºC. The time you can store it depends on the quality of your PBS and how sterile you are working. If you really want to freeze the solution we recommend to use 0.9% NaCl. In general, we recommend to freeze-thaw your material as little as possible. Find out more here.
After receiving the products they should be stored frozen in a freezer, at -20ºC.
We allergen products of house dust mites and storage mites but also insect allergens such as bee/ wasp venom and cockroaches. The most popular form is the regular extract but we can also deliver whole cultures, purified allergens, excrements and mite bodies. Our products are used by researchers and diagnostic companies all over the world.