Food&Water Q.C.

 

CHROMagar™ Identification Listeria

Photos CHROMagar™ Identification Listeria
For confirmation of L.monocytogenes species
from suspect colonies on CHROMagar Listeria
.

Typical Appearance of microrganisms

L.monocytogenes → rose surrounded by a white halo
L.ivanovii → colourless surrounded by a white halo
L.innocua → rose without halo
B.cereus  → colourless with irregular edge (intense halo)

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CHROMagar™ Vibrio

Photos CHROMagar™ Vibrio
For isolation and detection of V. parahaemolyticus, V. vulnificus and V. cholerae.

Typical Appearance of microrganisms

V. parahaemolyticus → mauve
V. vulnificus / V. cholerae→ green blue to turquoise blue
V. alginolyticus → colourless

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CHROMagar™ B.cereus

Photos CHROMagar™ B.cereus

For detection and enumeration of Bacillus cereus group

Typical Appearance of microorganisms

Bacillus cereus → blue with white halo  
Other Bacillus → blue, colourless or inhibited
Gram negative bacteria → inhibited
Yeast and moulds → inhibited


 

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CHROMagar™ E.sakazakii

Photos CHROMagar™ E.sakazakii
For detection of E. sakazakii (Cronobacter spp.) 
according to ISO/TS 22964 standard

Typical Appearance of microrganisms

E. sakazakii → green to blue 
Other Gram (-) → inhibited, colourless or light purple/translucent colonies 
Gram (+) bacteria → inhibited

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CHROMagar™ Mastitis

Photos CHROMagar™ Mastitis
For isolation and differentiation
of 
pathogens involved in Mastitis 

Typical Appearance of microrganism
CHROMagar Mastitis GP
   Strep uberis → metallic blue. Staph aureus ...
CHROMagar Mastitis GN
   E.coli → red. Klebsiella, Enterobacter, Citrobacter ...

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CHROMagar™ Staphylococcus

Photos CHROMagar™ Staphylococcus
For isolation and direct differentiation
of Staphylococcus in industrial samples


Typical Appearance of microrganisms

S.aureus → pink to mauve 
S.epidermidis → colourless to rosish 
S.saprophyticcus → turquoise blue 
Other Staphylococci → various 
Streptococci → inhibited 
Gram negative bacteria → inhibited

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