DD052-1VL is referred as Proline disc.Proline discs are amino acid discs . Amino acid discs are used to differentiate the microorganisms on the basis of their ability to decarboxylate the amino acids. Proline discs are applied in Proline decarboxylation test. After Formation of amine the pH of the medium increases changing the colour of the indicator from yellow to purple. If the organisms do not produce the appropriate enzyme, the medium remains acidic, yellow in colour. Inoculated tubes must be protected from air with a layer of sterile mineral oil to avoid alkalinisation.

Specifications:

Appearance: Filter paper discs of 10 mm diameter .

Cultural Response: Incubation for 4 days at 35-37C

Medium: Moeller Decarboxylase Broth Base (M393)

Colour change: Yellow to purple

Storage: 10-30C

Pack size: 1 vial