HardyCHROM™ ESBL Agar, (Extended-Spectrum Beta-Lactamase), a chromogenic plating medium, 15x100mm plate

Clear, quick results in as little as 18 hours!
HardyCHROM™ ESBL is a selective and differential chromogenic medium which is intended for the qualitative and presumptive detection from stool specimens of: 1) Enterobacteriaceae that are potentially non-susceptible to ceftazidime and cefpodoxime; and 2) Extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli, Klebsiella pneumoniae and Klebsiella oxytoca.
ESBL or Extended Spectrum Beta Lactamases refer to a group of enzymes produced by some species of bacteria that can mediate the organism’s resistance to one or more broad spectrum penicillins and cephalosporin antibiotics. Hardy Diagnostics is proud to offer this breakthrough culture media that will help screen ESBL quickly and more efficiently from stool specimen.

Features and Benefits:

Results in as little as 18 hours
Easy-to-read color read-out
Escherichia coli produce pink colonies
Proteus mirabilis produce yellow/gold colonies
Klebsiella pneumoniae produce blue colonies

See the Instructions for Use (IFU) below (under Technical Information) for the complete procedure with color photos.
This media is to be stored and incubated in the dark. If you have a light in your refrigerator, incubator, or you leave the media exposed to light on the bench top, Hardy Diagnostics offers free Blok-Boxes. Blok-Box is a reusable cardboard box that holds one sleeve of ten petri plates.

Please contact us at for specific academic pricing.