Clinical Microbiology

 

CHROMagar™ Malassezia

Photos CHROMagar™ Malassezia
For detection of Malassezia spp.

Typical Appearance of microrganisms

Malassezia furfur → large, pale pink and wrinkled 
Other Malassezia spp including M. globosa & M. restricta → mostly pink to purple

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CHROMagar™ STEC

Photos CHROMagar™ STEC
For detection of 
Shiga-Toxin producing E.coli (STEC)

Typical Appearance of microrganisms

Most common Shiga-Toxin E.coli serotypes 
→ mauve
Other Enterobacteriacae → colourless, blue or inhibited 
Gram positive bacteria → inhibited

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CHROMagar™ C3GR

Photos CHROMagar™ C3GR
For overnight detection of gram negative bacteria producing Beta-lactamase

Typical Appearance of microrganisms

E.coli C3GR → Dark pink to reddish
Klebsiella, Enterobacter, Citrobacter → metallic blue
Proteus → brown halo

Sensitive Gram negative strains → inhibited

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CHROMagar™ Y.enterocolitica

Photos CHROMagar™ Y.enterocolitica
For detection and direct differentiation 
of pathogenic Yersinia enterocolitica 

Typical Appearance of microrganisms

Pathogenic Y.enterocolitica → mauve
Non pathogenic Y.enterocolitica and Background flora (Citrobacter, Enterobacter, Aeromonas etc) 
→ Metallic blue, inhibited or limited growth in metallic blue colour

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CHROMagar™ MH Orientation

Photos CHROMagar™ MH Orientation
Chromogenic Mueller Hinton agar

Typical Appearance of microrganisms

E.coli → dark pink to reddish
Enterococcus → turquoise blue
Klebsiella, Enterobacter, Citrobacter → metallic blue
Proteus → brown halo
Pseudomonas → cream, translucent
S.aureus → golden, opaque, small
S.saprophyticus → pink, opaque, small

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CHROMagar™ C.difficile

Photos CHROMagar™ C.difficile
For detection of Clostridium difficile 

Typical Appearance of microrganisms

C.difficile → colourless and fluorescent under UV light at 365 nm
Other bacteria → colourless, no fluorescent or inhibited
 

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