Food&Water Q.C.

 

CHROMagar™ ECC

Photos CHROMagar™ ECC
For the simultaneous detection and enumeration of E.coli and other coliforms
in food or water samples.
 

Typical Appearance of microrganisms

E.coli → Blue
Other Coliforms → Mauve 
Other bacteria → Colourless or inhibited.

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CHROMagar™ Liquid ECC

Photos CHROMagar™ Liquid ECC
For the simultaneous detection and enumeration of E.coli and other coliforms
in water samples.


Typical Appearance of microrganisms

E.coli → blue
Other faecal coliform bacteria → purple
Other gram negative bacteria → colourless or inhibited

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CHROMagar™ Salmonella Plus

Photos CHROMagar™ Salmonella Plus
For detection and isolation of Salmonella species including lactose positive Salmonella.
Detection of lactose positive Salmonella is now required in food microbiology by the ISO 6579 standard.


Typical Appearance of microrganisms

Salmonella (including S.typhi, S.paratyphi A and lactose positive Salmonella) → Mauve
E.coli  → colourless
Coliforms, etc → blue
Proteus, etc → colourless or inhibited

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CHROMagar™ Staph aureus

Photos CHROMagar™ Staph aureus
For isolation and direct differentiation
of Staphylococcus aureus
in clinical and industrial samples.


Typical Appearance of microrganisms

Staphylococcus aureus → pink to mauve


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CHROMagar™ Listeria

Photos CHROMagar™ Listeria
For detection and differentiation
of
Listeria monocytogenes from
other bacteria in food samples.
 

Typical Appearance of microrganisms

L.monocytogenes → blue, diameter less than 3mm, regular and white halo
Other microorganisms → blue, colourless, other colour, inhibited

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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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