PP1089 Group B Streptococcus (GBS) Medium is a selective medium for the detection and differentiation of β-haemolytic group B streptococci (GBS) from clinical samples.
PP1089 Group B Streptococcus (GBS) Medium allows β-haemolytic GBS strains to form orange pigmented colonies in the absence of oxygen, whereas other strains are either grey/colourless or inhibited.
| Container | |
|---|---|
| Pack Size | |
| Shelf Life (days) | |
| Storage Temp (°C) | |
| Appearance | Firm Gel |
| Colour | Pale Straw |
| pH | |
| Recommended Incubation | 37 ± 1°C anaerobically for 18-24 hours |
| Organisms | Ref. No | Result |
|
Streptococcus agalactiae
|
ATCC 12386 | Orange colonies |
|
Enterococcus faecalis
|
NCTC 12697 | Colourless/grey colonies |
|
Escherichia coli
|
NCTC 12241 | Inhibited |
|
Staphylococcus aureus
|
NCTC 12981 | Inhibited |
| g/L | |
|
Agar
|
12.0 |
|
Buffers
|
22.2 |
| Magnesium Sulphate | 0.3 |
| Sodium Pyruvate | 1.0 |
| Glucose | 2.5 |
| Starch | 14.0 |
| Proteose peptone No. 3 | 25.0 |
| Methotrexate | 0.008 |
| Selective agents | 0.0175 |
| Horse serum | 10ml |
| Total | 45.5 |
*Adjusted/supplemented as required to meet performance requirements
