Serratia Differential Medium (SD Medium) (Twin Pack) 100G

Serratia Differential Medium (SD Medium) (Twin Pack) is recommended for the cultivation and differentiation of Serratia species on the basis of arabinose fermentation and ornithine decarboxylation. This medium is used for the differential isolation of Serratia species from clinical samples, based on its ability to ferment arabinose and decarboxylate ornithine. S. marcescens changes the greenish yellow medium to purple throughout while S. rubidaea changes it to yellow throughout the tube. S. liquefaciens forms a purple band at the top of the tube.