ESBL Detection Chrom Agar

ESBL Detection Chrom Agar is chromogenic screening medium for the selective isolation of ESBL producing organisms. It contains peptone mix which serves as the carbon and nitrogen sources, long chain amino acids, vitamins and other growth nutrients. Chromogenic mixture is used to differentiate the ESBL producing organisms on the basis of colour. ESBL producing E.coli grow as either pink or purple colonies.

ESBL producing members of the KESC group produce bluish green colonies; Proteus, Morganella and Providencia do not utilize any chromogen resulting in colourless to light brown colonies.