Oxford Listeria Supplement

Oxford Listeria Supplement is used with Oxford Listeria Agar Base as a supplement for the selective enrichment of Listeria spp. in foods in a laboratory setting. Oxford ListeriaSupplement is not intended for use in the diagnosis of disease or other conditions in humans.


Formula (per vial)
Acriflavin 2.5 mg
Cefotetan 1 mg
Colistin sulfate 10 mg
Cycloheximide 200 mg
Phosphomycin 5 mg


Oxford Listeria Agar Base – as Oxford Medium

  1. Suspend 57.5 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 10 – 15 minutes. Cool to 45 – 50°C.
  4. Reconstitute 2 vials of Oxford Listeria Supplement and aseptically add to 1 L of the sterile medium.
  5. Dispense as desired.