Harlequin™ chromogenic media

Chromogenic culture media provide a rapid and accurate method of isolating and enumerating target micro-organisms based on the detection of specific enzyme activities.

Not only do chromogenic media enable faster detection of specific micro-organisms compared with classical culture media, they also improve sensitivity and can reduce the need for subculture or confirmatory tests.

Lab M’s HarlequinTM range of chromogenic media includes products for the isolation of Listeria species, Salmonellae, Escherichia coli and Enterobacter (formerly Cronobacter) sakazakii.

Harlequin CSIM (ISO)

A chromogenic medium for the isolation of Cronobacter sakazakii from milk and milk products as described in ISO/TS 22964:2006(E).

Harlequin™ CSA-DFI - Cronobacter sakazakii Agar DFI Formulation

A selective medium based on the formulation of Druggan, Forsythe & Iversen for the isolation of Cronobacter sakazakii (formerly Enterobacter sakazakii).

Harlequin™ E.coli/Coliform Medium

A dual chromogenic medium for the simultaneous enumeration of Escherichia coli and coliforms in food and environmental samples.

Harlequin™ LB Agar

Harlequin™ Listeria Chromogenic Agar

A selective medium for the isolation and presumptive identification of Listeria monocytogenes from foodstuffs and related materials.

Harlequin™ mLGA

A selective chromogenic media for the simultaneous enumeration of Escherichia coli and coliforms.

Harlequin™ Salmonella ABC Medium

A dual chromogen medium for the isolation of Salmonellae from food and clinical samples (including Salmonella typhi and paratyphi).

Harlequin™ SMAC-BCIG

A specific substrate chromogenic medium for the isolation of Escherichia coli O157:H7. Based on the formulation of Sorbitol MacConkey Agar (SMAC), Harlequin SMAC-BCIG includes the chromogenic substrate BCIG for improved specificity.