Compact Dry is a simple and safe procedure for determining and quantifying microorganisms in foodstuffs, cosmetics and other raw materials, including pharmaceuticals. The ready-to-use Compact Dry chromogenic plates are suitable for both in-process and final product controls.

Listeria are gram-positive, motile (under mesophilic conditions), psychrotrophic bacteria with six (6) known species known - L. monocytogenes, L. innocua, L. seeligeri, L. welshimen, L. ivanovii y L. grayi. They are associated with clinical clinical importance due to their virulence activity. But among the six species of Listeria, the most prevalent is L.monocytogenes which causes listeriosis, including sepsis, meningitis, encephalitis, corneal ulcer, pneumonia, cervical infection and abortion, where the elderly, immunocompromised, pregnant women and infants are most susceptible. Due to due to the growing outbreak of Listeria, it became necessary to test for contamination by Listeria to certain high-risk foods ready-to-eat seafood, pre-packaged fruits and vegetables, beverages made from fresh fruit, raw sausages, uncooked sausages, unpasteurized milk, creamy ice cream, white cheese, salad dressings and uncooked sausages, unpasteurized milk, creamy ice cream, white cheese, salad dressings and raw vegetable garnishes. raw vegetable garnishes.