a broth for E. coli O157, the selectivity of which can be increased by using supplements as appropriate Detailed Pdsroduct DescriptionSynonymmTSBMolecular FormulaN/AMolecular WeightN/ACAS NumberN/ASpecification a pancreatic digest of casein for use where high performance and uniformity of composition are of paramount importance. Storage: RT, Dark Tryptone Soya Broth Modified (mTSB)