Xylose Lysine Desoxycholate Agar (XLD) Detail
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.
Xylose Lysine Desoxycholate Agar (XLD) P0028
- Category: Clinical & Veterinary / Food, Water & Environmental
- Pack Size: 10 x 90 mm plates
- Shelf Life: 12 weeks
- Storage Temp: 2-8 °C
- Appearance: Firm Gel
- Colour: Red
- Recommended Incubation: 37 ± 1°C for 24 hours
- pH: 7.4 ± 0.2
- Fill Volume: 18.0 ± 2.0ml
Quality Control
| Organisms | Ref. No | Result |
|---|---|---|
| Salmonella Typhimurium | ATCC® 14028 | Good growth; red colonies with black centre |
| Salmonella Enteritidis | ATCC® 13076 | Good growth; red colonies with black centre |
| Enterobacter aerogenes | ATCC® 13048 | Brown coloured colonies |
| Enterococcus faecalis | ATCC® 29212 | Total inhibition |
| Escherichia coli | ATCC® 25922 | Growth or partial inhibition, yellow colonies |