CHROMOGENIC SUBSTRATES FOR THE DETECTION OF SALMONELLA

摘要

The invention relates to a method of detecting salmonella spp, comprising exposing a sample to a substrate containing a chromogenic compound that reacts with a cellular esterase/lipase present in salmonella spp and having an affinity for octanoate esters, the chromogenic compound comprising a 4-[2-(4-octanoyloxy-3,5-dimethoxyphenyl)-vinyl]-quinolinium-1-(propan-3-ylcarboxylic acid) cation and an anion. The invention further provides chromogenic compounds and media for such methods.