Media for coliform bacteria and E. coli testing can be used to monitor cleaning efficiency and water quality in facilities.

Detection and enumeration of E. coli and total coliforms are used to indicate whether water is contaminated and to evaluate water quality.

Intended Use

Total coliforms are often used as a quality indicator, including assessment of the effectiveness of water treatment and the integrity of water delivery systems. E. coli is used to detect fecal contamination of water.

Principle

Total coliforms can be found in water samples that contain surface water or have been in contact with human or other animal waste. They are indicators of organic pollution occurring in underground water, sources for water supplies such as reservoirs, as well as aqueducts, water pipes, and other methods of moving water. Most coliforms are not hazardous to human health, so the detection of coliforms in water does not necessarily indicate that the water is unsafe. However, their presence indicates potential contamination and that other pathogens may be present. A common application is testing for total coliforms in drinking water systems, in order to determine the efficacy of water treatment and the soundness of the distribution system.

E. coli generally do not grow in the environment naturally, so the presence of this bacterium is considered evidence of fecal contamination. Although not all strains of E. coli are pathogenic, their presence indicates that the water is contaminated and that other pathogens may be present.

Product Options

Bio-Rad offers a wide range of different standard media for the detection and enumeration of E. coli and total coliforms in order to cover all types of water testing: Media Including BCP (Bromocresol Purple) Lactose Broth, BGBLB (Brilliant Green Bile Lactose Broth), Schubert Broth, Tryptose Lauryl Sulfate/Broth, MacConkey Agar, TTC Tergitol 7 Agar, and RAPID’E.coli 2 Agar as well as non-selective media, and Kovacs Reagent for Indole detection.

Related Categories

• RAPID’E.coli 2 Agar for Water Testing
• RAPID’Enterococcus Agar for Water Testing
• Standard Media for Water Testing
• Fluorogenic Media for Water Testing
• XplOrer64™ System and CheckN’Safe™ Kits for real-time monitoring of recreation waters

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(停产) BCP (Bromocresol Purple) Lactose Broth

3553414

Pkg of 25, 10 ml tubes of Bromocresol Purple Lactose Broth

(停产) BGBLB (Brilliant Green Bile Lactose Broth)

3578024

Pkg of 25, 10 ml tubes of Brilliant Green Bile Lactose Broth

(停产) Kovacs Reagent, for indole detection

3555313

Pkg of 2, 15 ml bottles of Kovac’s Reagent, for indole detection

(停产) MacConkey Agar

3564154

500 g

(停产) Peptone Water (Indole Free) Broth

3554180

Pkg of 25, 9 ml tubes of indole-free Peptone Water Broth

(停产) Peptone Water (indole-free) Broth, dehydrated

3564334

500 g

(停产) RAPID'E.coli 2 Agar Plates for Water Testing

3563982

Pkg of 20, 55 mm agar plates, containing selective supplement

(停产) Schubert Broth (modified by Fennel)

3569634

500 g

(停产) Tergitol 7 (0.2%) Supplement, 50 ml

3562632

Pkg of 1, 50 ml bottle of 0.2% Tergitol Supplement

(停产) Tergitol 7 (0.2%) Supplement, 5 ml

3562635

Pkg of 1, 5 ml vial of 0.2% Tergitol Supplement

(停产) TTC (0.05%) Supplement, 50 ml

3562652

Pkg of 1, 50 ml bottle of 0.05% triphenyltetrazolium chloride (TTC)

(停产) TTC (0.05%) Supplement, 5 ml

3562655

Pkg of 1, 5 ml vial of 0.05% triphenyltetrazolium chloride (TTC)

(停产) TTC Tergitol 7 Agar, Base Medium, 6 x 200 ml

3554687

Pkg of 6, 200 ml bottles of TTC Tergitol 7 Agar, base medium

(停产) TTC Tergitol 7 Agar, Base Medium, dehydrated

3564454

500 g

(停产) TTC Tergitol 7 Agar; Complete Medium, 10 plates

3563706

Pkg of 10, prepared plates of TTC Tergitol 7 Agar, complete medium, 55 mm diameter

(停产) TTC Tergitol 7 Agar; Complete Medium, 100 plates

3563980

Pkg of 100, prepared plates of TTC Tergitol 7 Agar, complete medium, 55 mm diameter

(停产) Trypto-Casein-Soy Agar (TSA), ready to use

3555947

Pkg of 6, 200 ml bottles

(停产) Trypto-Casein-Soy Agar (TSA) tubes

3555944

Pkg of 25, 8 ml slanted culture tubes

(停产) Trypto-Casein-Soy Agar (TSA), dehydrated

3564554

Pkg of 1, 500 g of dehydrated agar base

(停产) Tryptophan Broth

3554194

Pkg of 25, 3 ml tubes of Tryptophan Broth

(停产) Tryptose Lauryl Sulfate Broth

3564774

500 g

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