Originally introduced as an aid to recovery of Shigella spp. XLD is also a first class medium for recovery of Salmonella spp. It differs from other media of this type in that it has less sodium desoxycholate as its selective agent. The indicator system is somewhat complex taking advantage of the fermentation or otherwise of three carbohydrates (lactose sucrose and xylose) together with lysine decarboxylase and sodium thiosulphate as an indication of the presence or absence of hydrogen sulphide.
- Storage temperature: 2 to 8°C
- Appearance: firm gel
- Colour: light rose
- Recommended incubation: aerobically at 37°C for 16 to 24 hours
- pH: 7.4 ± 0.2
- Plate size: 90mm
Ce produit répond aux critères suivants pour être admissible aux récompenses suivantes :