Carnobacterium Selective Agar Base (CTAS Agar Base)is recommended for the detection of Carnobacterium species.The medium is recommended for the detection of Carnobacterium species from environment and food. Casitose serves as a source of nitrogen and amino acids. Yeast extract is the vitamin source. Sucrose and citrate is the carbon source. Polysorbate 80 acts as an emulsifier. Dibasic potassium phosphate buffer the medium. Manganese sulfate helps to stimulate growth of carnobacteria whereas Thallium acetate and nalidixic acid are used as inhibitory substance for selective isolation of Carnobacterium spp.