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ALOA® Agar (10 x 140MM Plates)

SKU Number : AEB120082

For the enumeration of L. monocytogenes and detection of both Listeria spp. and L. monocytogenes.

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ALOA® is a selective medium used for the detection of Listeria monocytogenes and other Listeria spp in foodstuffs and environmental samples. ALOA® also facilitates the enumeration of L .monocytogenes in foodstuffs.

On the ALOA® medium Listeria grow as blue-green regular round colonies by detection of β-glucosidase and using a specific chromogenic substrate. Listeria monocytogenes also shows an opaque halo, which helps to easily differentiate them from other species of Listeria. This halo is due to the activity of a phospholipase involved in the infection cycle of pathogenic Listeria. The selectivity is obtained by the combination of lithium chloride, antimicrobial and antifungal components in the medium.