CompactDry SL for Salmonella species

CompactDry SL detects Salmonella using 20 – 24 hours pre-enrichment steps.
The plates are based on the combination of different test principles:

1. Alkalinisation of the medium, by Salmonella lysine decarboxylase the medium colour will change from blue-purple to yellow. The yellow coloration spreads over the plate due to Salmonella motility.
2. Greening of the colony, caused by decomposition of chromogenic substrate with a specific Salmonella enzyme. Black colonies are generated by hydrogen sulphide producing Salmonella.