Preparation
- Shake the container of Listeria OXFORD Agar well.
- Suspend 29.25 of powder in 500 ml of distilled water.
- Autoclave for 15 min. at 121°C.
- Cool to 50°C and aseptically add one vial of Listeria Oxford Selective Supplement or Listeria Modified Oxford Selective Supplement in 5 ml of 50% ethanol. Mix well and pour into sterile petri plates.
STORAGE
The medium powder should be kept tightly closed and stored at temperatures below 30 degrees Celsius, and the medium should be stored at a temperature of 2-8 degrees Celsius. The best time to use is before the expiration date printed on the product label.