| Product Code | Description | Product Size | Quantity |
| CM1061B | XLT-4 Agar 500g | – | 500g |
XLT-4 Agar 500g
Brand:
Thermo ScientificTM OxoidTM
This item is currently discontinued. Please refer to the alternative XLD Medium.
Efficiently isolate and identify salmonellae from clinical, environmental and food samples with highly selective Thermo Scientific™ XLT-4 Agar. XLT-4 Agar contains sodium tetradecylsulfate which acts to inhibit many of the background flora organisms whose growth can cause problems with differentiation on other Salmonellae plating media. This enhanced selectivity allows a significant increase in the recovery of salmonellae, while reducing false-positive suspect colonies, saving time and reducing the costs of further identification of false-positive colonies.
XLT-4 Agar Base, Oxoid Composition
| Typical Formula* | gm/litre |
| Proteose Peptone | 1.6 |
| Yeast extract | 3.0 |
| Lysine | 5.0 |
| Xylose | 3.75 |
| Lactose | 7.5 |
| Sucrose | 7.5 |
| Ferric ammonium citrate | 0.8 |
| Sodium thiosulphate | 6.8 |
| Sodium chloride | 5.0 |
| Phenol Red | 0.08 |
| Agar | 18.0 |
| Final pH 7.4 ± 0.2 @ 25°C |
XLT-4 Agar, Oxoid Preparation:
Suspend 59g of XLT-4 Agar Base in 1 litre of distilled water, add 4.6ml of XLT-4 Selective Supplement and bring the medium to the boil.
Do not overheat, do not autoclave.
Cool to approximately 50°C and pour into sterile Petri dishes. It is not advised to hold the medium at 50°C for longer than 1 hour as this may cause the medium to precipitate.
Storage conditions and Shelf life
The dehydrated medium should be stored at 10-30°C and used before the expiry date on the label.
Prepared medium may be stored for up to 2 weeks at 2-8°C.
100% Authentic Guarantee Description
Additional information
| Dimensions | 10 cm |
|---|---|
| Brand | Oxoid |
| Estimated Delivery Time | 1-2 weeks |
