Are Neogen’s allergen test kits appropriate for all samples?

Food allergens cannot be detected in some specific sample types by any commercially available test kit. Fermented  and hydrolysed proteins, as well as fermentation substrates such as gums, may not be detected due to the nature of the proteins, but there could still be active allergenic protein residue present. Food allergens may also not be detectable in some concentrated food additives, colours, and flavours.