Product Code | Description | Product Size | Quantity |
CM1061B | XLT-4 Agar 500g | – | 500g |
XLT-4 Agar 500g
Brand:
Thermo ScientificTM OxoidTM
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.
Dimensions | 10 cm |
---|---|
Brand | Oxoid |
Estimated Delivery Time | 1-2 weeks |