METHOD OF ENUMERATING ESCHERICHIA COLI

摘要

The present invention provides a method which is specific to determining and is capable of enumerating Escherichia coli (E. coli) in a sample water or sewage specimen. The method comprises adding to a cultured specimen a chromogenic reagent which when subjected to in situ E. coli .beta. -glucuronidase activity produces clearly defined vivid colourization of any individual colonies derived from E. coli cells in the test specimen.