Product number: 7443

Campy Selective Agar Base (Preston) is used with antimicrobics for the selective isolation of Campylobacter jejuni and Campylobacter coli in a laboratory setting. Campy Selective Agar Base (Preston) is not intended for use in the diagnosis of disease or other conditions in humans.

Campy Selective Agar Base (Preston) is based on the formulation described by Bolton and Robertson. This formula, with the addition of the Preston Supplement, was developed to isolate Campylobacter spp. from environmental specimens. The Preston formulation demonstrated improved recovery and selectivity of Campylobacter spp. in comparative studies with other selective media (Skirrow, Butzler, Blaser and Campy-Blood Agar).


Formula Liter
Enzymatic Digest of Animal Tissue 10 g
Enzymatic Digest of Casein 10 g
Sodium Chloride 5 g
Agar 12 g

Final pH: 7.5 ± 0.2 at 25°C
Formula may be adjusted and/or supplemented as required to meet performance specifications.

Antimicrobials / 10 mL

Polymyxin B, 5000 IU
Trimethoprim, 10 mg
Rifampin, 10 mg
Cycloheximide, 100 mg


  1. Suspend 37 g of the medium in one liter of purified water.
  2. Heat with frequent agitation and boil for one minute to completely dissolve the medium.
  3. Autoclave at 121°C for 15 minutes.
  4. Cool medium to 45 – 50°C and aseptically add 5% lysed horse blood and 10 mL of a filtered sterilized aqueous solution containing 5000 IU polymyxin B, 10 mg trimethoprim, 10 mg rifampin, and 100 mg cycloheximide.

Order Details

Product # Product Description
7443T Campy Selective Agar Base (Preston), 5 kg
7443C Campy Selective Agar Base (Preston), 10 kg

Reference Material

7443 - Campy Selective Agar Base (Preston Modified), Product Information Sheet [English] [Portuguese]

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