ENTEROCOCCUS DIFFERENTIAL AGAR BASE (TITG AGAR BASE)

Description

Enterococci were formerly classified as faecal streptococci. Enterococci serves as an indicator organism in monitoring food samples as it is cause of faecal contamination. Of the various species of Enterococci, E. faecalis and E. faecium are frequently found in humans. The presence of Enterococci in food samples has been studied. A variety of selective media have been recommended for the isolation of Enterococcus species. Enterococcus Differential Agar Base was designed for the selective isolation and differentiation between Enterococcus faecalis and Enterococcus faecium. The differentiation is based depending upon the reduction of tetrazolium. Enterococcus faecalis produces colonies with a deep red centre and a narrow white periphery, whereas Enterococcus faecium produces white or pale pink coloured colonies.