|Product Code||Description||Product Size||Quantity|
|CM0863B||Listeria Enrichment Broth Base UVM 500g||–||500g|
Listeria Enrichment Broth Base UVM 500g
Thermo ScientificTM OxoidTM
- Oxoid Listeria Enrichment Broth Base (UVM Formulation) is a two-step selective enrichment (USDA-FSIS) method.
- Also available Listeria Primary Enrichment Supplement-UVM I, Part No. SR0142E or SR0142B and Listeria Secondary Selective Enrichment Supplement-UVM II, Part No. SR0143E.
Listeria Enrichment Broth Base (UVM formulation) is to be used with the appropriate supplement for UVMI broth or UVMII broth.
Listeria Enrichment Broth Base (UVM formulation), Oxoid Composition
|Disodium hydrogen phosphate|
|Potassium dihydrogen phosphate|
|pH 7.4 ± 0.2 @ 25°C|
Listeria Enrichment Broth, Oxoid Preparation:
Suspend 27.2g in 500ml of distilled water. Sterilise by autoclaving at 121°C for 15 minutes. Cool to 50°C.
To Prepare Listeria Primary Selective Enrichment Medium (UVM I):
Aseptically add the contents of 1 vial of Listeria Primary Selective Enrichment Supplement (UVM I) SR0142 reconsituted as directed. Mix well and distribute into sterile containers.
To Prepare Listeria Secondary Selective Enrichment Medium (UVM II):
Aseptically add the contents of 1 vial of Listeria Secondary Selective Enrichment Supplement (UVM II) SR0143 reconsituted as directed. Mix well and distribute into sterile containers.
Storage conditions and Shelf life
Store the dehydrated medium at 10-30°C and use before the expiry date on the label.
Store the prepared medium at 2-8°C.
Note the precautions stated under Listeria Selective Medium (Oxford) CM0856 and SR0140.
Broth cultures are more dangerous than colonies on agar plates.
Store prepared medium away from light. Acriflavine can photo-oxidise to form inhibitory compounds against listeriae.