Media for ‘total’ Enterobacteriaceae, coliforms and Escherichia coli

The occurrence of indicator bacteria on hands and aprons of food handlers in the delicatessen sections of a retail group

“…(Blood & Curtis, 1995;De Boer, 1998): Chromocult coliform agar plates were incubated at 35-37°C for 24 h and typical coliforms were salmon to red in colour, whilst typical E. coli colonies were dark-blue to violet in colour and members of the family Enterobacteriaceae colonies were colourless (MERCK, Germiston, SA). E. coli (ATCC 25922) and Enterobacter aerogenes (ATCC 15038) were used as positive controls whereas a blank plate was used as negative control.…”

A Turkey survey of hygiene indicator bacteria and Yersinia enterocolitica in raw milk and cheese samples

“…Escherichia coli is a bacterium whose natural habitat is the enteric tract of humans and warm-blooded animals (Blood & Curtis, 1995). Thus, the presence of E. coli foods is an indicator of direct or indirect fecal contamination.…”

Efficacy of Two Commercial Systems for Identification of Clinical and Environmental Escherichia coli

“…2;2014 Fluorogenic substrates that detect the activities of -D-glucuronidase and -D-galactosidase, two enzymes specific for E. coli and coliforms respectively were proposed by Feng and Hartman (1982). These substrates were employed in culture media for direct detection and/or confirmation of E. coli and coliforms in environmental samples, particularly investigating faecal contamination in water and food (Blood & Curtis, 1995;Manafi, 1996). Successful detection and/or confirmation of E. coli isolates from various water samples employing fluorogenic substartes is well documented (O'Toole & Chang, 1999;Prats et al, 2008).…”