MilliporeSigma
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1.02136

Millipore

Contact C

Envirocheck, Contact Total Coliforms/E.Coli coated with Plate Count Agar and Chromocult Coliform Agar

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material

plastic cap
plastic slide
plastic tube

Quality Level

form

solid (ready-to-use)

manufacturer/tradename

Envirocheck

application(s)

food and beverages
microbiology

storage temp.

2-30°C

suitability

Escherichia coli (total count)
coliforms

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This Item
1.021371.021471.02139
Contact C Envirocheck™, Contact Total Coliforms/E.Coli coated with Plate Count Agar and Chromocult Coliform Agar

Millipore

1.02136

Contact C

Contact E Envirocheck™, for enterobacteriaceae

Millipore

1.02137

Contact E

Contact DC Envirocheck™, Disinfection Control coated with CASO (Tryptic Soy) Agar

Millipore

1.02147

Contact DC

manufacturer/tradename

Envirocheck

manufacturer/tradename

Envirocheck

manufacturer/tradename

Envirocheck

manufacturer/tradename

Envirocheck

application(s)

food and beverages
microbiology

application(s)

food and beverages
microbiology

application(s)

food and beverages
microbiology

application(s)

food and beverages
microbiology

storage temp.

2-30°C

storage temp.

2-30°C

storage temp.

2-30°C

storage temp.

2-30°C

suitability

Escherichia coli (total count), coliforms

suitability

enterobacteriaceae

suitability

bacteria (microbial load - before and after disinfection)

suitability

molds, yeasts

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

General description

(total coliforms/E.coli) Envirocheck
Envirocheck Contact Total Coliforms/E.Coli, a semi-quantitative detection of coliform bacteria on surfaces and in liquids, are flexible paddles that are coated with Plate Count Agar for simultaneous detection of coliforms and E. coli.Slide A is coated with Plate Count Agar to obtain the total viable (aerobic) count. Slide B is coated with Chromocult Coliform Agar for the simultaneous detection of coliforms and E. coli in water and food-samples.

Application

This medium is recommended for the simultaneous detection of coliforms and E. coli in water and food-samples. Envirocheck contact slides can be used for both surface and liquid testing in industrial and environmental monitoring.

Analysis Note

Count the number of colonies on both sides of the paddle. Plate Count Agar: Count the number of colonies for obtaining the total aerobic bacterial count (TVC). Chromocult Coliform Agar: Count the number of dark-blue to violet colonies (E. coli) and the number of salmon to red colonies for other coliforms. Additionally, E. coli can be confirmed by adding KOVAC′s Indole Reagent directly onto the colony (positive indole reaction: red colour).
Sterility: passes test
pH-value/side one (25 °C): 6.7 - 7.3
pH-value/side two (25 °C): 6.5 - 7.1
Growth/side one
- Escherichia coli ATCC 11775 (WDCM 00090):
good
- Escherichia coli O157:H7 ATCC 35150: good
- Citrobacter freundii ATCC 8090: good
- Salmonella enteritidis ATCC 13076 (WDCM 00030): good
Growth/side two
- Escherichia coli ATCC 11775 (WDCM 00090):
good
- Escherichia coli O157:H7 ATCC 35150: fair/good
- Citrobacter freundii ATCC 8090: good
- Salmonella enteritidis ATCC 13076 (WDCM 00030): good
Colonies
- Escherichia coli ATCC 11775 (WDCM 00090):
dark blue to violet
- Escherichia coli O157:H7 ATCC 35150: salmon to red
- Citrobacter freundii ATCC 8090: salmon to red
- Salmonella enteritidis ATCC 13076 (WDCM 00030): colourless
Incubation: 48 hrs.; 35 °C; aerobic.

Legal Information

ENVIROCHECK is a trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 2


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