CHROMedium Salmonella
| Shorthand symbol: | CXSA |
| Item number: | 40-1506 |
| Format: | Petri dish, 90mm |
| Colour: | Yellowish, transparent |
| Storage conditions: | Dry and closed at 4-10°C |
| Shelf-life: | 3 Months |
| pH: | 7.2 ± 0.2 at 25°C |
The Chromium X Salmonella Ident Agar is a selective chromogenic medium used to detect and identify Salmonella in clinical material, food and water.
| in g per 1l Medium | |
|---|---|
| Casein Peptone | 5 |
| Beef meat extract | 5 |
| Sodium citrate | 8,5 |
| Chromogenic Mixture | 5,81 |
| Antibiotic Mixture (growing mix, in mg) | 17 |
| Agar | 12 |
| *Adjusted as required to meet performance standards |
Themicrobial performance test is carried out in conformity with the requirementsof DIN EN ISO 11133.
Productivity
Incubation conditions: 24 ± 3 hours at 37 ± 1 °C; Inoculation concentration: 80 – 120 CFU
| Organism | Test strain | Specification | Colony morphology | |
|---|---|---|---|---|
| Salmonella enterica serovar Enteritidis | ATCC 13076 / WDCM 00030 | 50 – 130 % | Magenta colonies |
Selektivität
Incubation conditions: 24 ± 3 hours at 37 ± 1 °C; Inoculation concentration: 10.000 – 1.000.000 CFU
| Organism | Test strain | Specification | Colony morphology | |
|---|---|---|---|---|
| Escherichia coli | ATCC 25922 / WDCM 00013 | Partially inhibited | Blue green colonies | |
| Enterococcus faecalis | ATCC 19433 / WDCM 00009 | Complete inhibition | - |
Microbial Contamination
Incubation conditions: 5 – 7 days at 20 – 25 °C and 5 – 7 days at 30 – 35 °C
| Specification |
|---|
| No microbial contamination |