Lysine Hydrochloride 1VL

Lysine Hydrochloride discs are used for lysine decarboxylation test. To determine lysine decarboxylation, the Lysine disc (DD049) is added in the Decarboxyalse Broth Base, Moeller (M393) which is used as a negative control for studying decarboxylation or as a base for the addition of amino acids. The test organism is inoculated into the broth containing the Lysine disc (DD049). The inoculated tubes are overlaid with sterile mineral oil and incubated at 35-37°C for up to 4 days. Positive Test: Colour of the medium changes from yellow to purple Negative Test: Colour of the medium changes to yellow or there is no change