Hefeextrakt-Glucose-Chloramph.-Agar (YGC-Agar) (YGC)
| Shorthand symbol: | YGC |
| Item number: | 40-1144 |
| Format: | Petri Dish, 90mm |
| Colour: | Yellowish, transparent |
| Storage conditions: | Dry, in closed bag, at 4-10°C |
| Shelf-life: | 6 Months |
| pH: | 6.6 ± 0.2 bei 25°C |
Teast Extract Glucose Chloramphenicol Agar (YGC Agar) for the detection and enumeration of yeasts and moulds in food stuffs. Chloramphenicol is added to inhibit bacterial growth.
| in g per 1 litre of Nutrient medium | |
|---|---|
| Yeast Extract | 5 |
| Glucose | 20 |
| Chloramphenicol | 0.1 |
| Agar | 10 |
The Microbiological Performance Test is carried out in accordance with the requirements BS EN ISO 11133:2014.
Produktivität
Incubation Conditions: see chart; Inoculum Concentration of Target Organisms: 10 – 100 CFU
| Organism | Type Strain | Specification | Colony morphology | |
|---|---|---|---|---|
| Candida albicans (2-3 days at 30-35°C) | ATCC 10231/WDCM 00054 | 50–130 % | Whitish colonies | |
| Candida albicans (3-5 days at 20-25°C) | ATCC 10231/WDCM 00054 | 50–130 % | Whitish coloniesn | |
| Aspergillus brasiliensis (2-3 days at 30-35°C) | ATCC 16404/WDCM 00053 | 50–130 % | Brown to black conidia on light mycelium | |
| Aspergillus brasiliensis (3-5 days at 20-25°C) | ATCC 16404/WDCM 00053 | 50 – 130 % | Brown to black conidia on light mycelium |
Selectivity
Incubation conditions:24±4 hours at 36±2°C; Inoculum concentration: Target organisms: 10,000–1,000,000 CFU
| Organism | Type Strain | Specification | Colony morphology | |
|---|---|---|---|---|
| Escherichia coli | ATCC 8739/WDCM 00012 | Complete inhibition | - | |
| Bacillus subtilis | ATCC 6633/WDCM 00003 | 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 |