Preparation
- Add 5 mL of distilled water to the Freezer Supplement vial and mix gently until completely dissolved.
- Using a filter to sterilize it.
- Add 10 mL of the prepared supplement to 500 mL of sterile and cooled Listeria Enrichment broth base, Fraser (i23274) and mix well.
- Mix well and pour into sterile test tubes.
STORAGE:
- Keep away from light.
- 25°C.