Trypton-Glucose-Hefeextrakt-Agar, Plate-Count-Agar (TGE)
| Shorthand symbol: | TGE |
| Item number: | 40-1189 |
| Format: | Petri Dish, 90mm |
| Colour: | Yellowish |
| Storage conditions: | Dry, in closed bag, at 4-10°C |
| Shelf-life: | 4 Months |
| pH: | 7.0 ± 0.2 at 25°C |
Largely the inhibitor-free nutrient medium Tryptone Glucose Yeast Extract Agar enables the growth of bacteria and yeasts. Inoculation of the culture medium is carried out either with the original material or the spatula with diluents.
| in g per 1 litre of Nutrient medium | |
|---|---|
| Caseine Peptone | 5 |
| Yeast Extract | 2.5 |
| Glucose | 1 |
| Agar | 10 |
| *Adjusted as required to meet performance standards |
The Microbiological Performance Test is carried out in accordance with the requirements of EN ISO 11133:2014.
Productivity
Incubation conditions: 72±3 hours at 30±1°C; Inoculum concentration: 80–120 CFU
| Organism | Type Strain | Specification | Colony morphology | |
|---|---|---|---|---|
| Bacillus subtilis | ATCC 6633/WDCM 00003 | >70% | Medium growth, whitish colonies | |
| Escherichia coli | ATCC 8739/WDCM 00012 | >70% | Medium growth, whitish colonies | |
| Staphylococcus aureus | ATCC 25923/WDCM 00034 | >70% | Light, whitish-yellow colonies |
Microbial Contamination
Incubation conditions: 5–7 days, 20–25°C and 5–7 days, 30–35°C
| Specification |
|---|
| No microbial contamination |