محیط کشت پلیت کانت اسکیم میلک آگار کد 115338 مرک آلمان





Plate Count skimmed milk agar
according to ISO 4833 and 17410



Analysis Note

Appearance (clearness): clear to opalescent
Appearance (colour): yellowish to yellowish-brown
pH-value (25 °C): 6.8 - 7.2
Solidification behaviour (2 hrs., 40 °C): liquid
Solidification behaviour (4 hrs., 45 °C): liquid
Growth promotion test in accordance with the current version of DIN EN ISO 11133.
Inoculum on reference medium (Staphylococcus aureus ATCC 6538 (WDCM 00032)):
Inoculum on reference medium (Staphylococcus aureus ATCC 25923 (WDCM 00034)):
Inoculum on reference medium (Escherichia coli ATCC 8739 (WDCM 00012)):
Inoculum on reference medium (Escherichia coli ATCC 25922 (WDCM 00013)):
Inoculum on reference medium (Bacillus subtilis ATCC 6633 (WDCM 00003)):
Colony count (Staphylococcus aureus ATCC 6538 (WDCM 00032)):
Colony count (Staphylococcus aureus ATCC 25923 (WDCM 00034)):
Colony count (Escherichia coli ATCC 8739 (WDCM 00012)):
Colony count (Escherichia coli ATCC 25922 (WDCM 00013)):
Colony count (Bacillus subtilis ATCC 6633 (WDCM 00003)):
Recovery on test medium (Staphylococcus aureus ATCC 6538 (WDCM 00032)): ≥ 70 %
Recovery (Staphylococcus aureus ATCC 25923 (WDCM00034)): ≥ 70 %
Recovery on test medium (Escherichia coli ATCC 8739 (WDCM 00012)): ≥ 70 %
Recovery on test medium (Escherichia coli ATCC 25922 (WDCM 00013)): ≥ 70 %
Recovery on test medium (Bacillus subtilis ATCC 6633 (WDCM 00003)): ≥ 70 %
Incubation: 72 ± 3 hours at 30 ± 1 °C aerobic.
A recovery rate of 70 % is equivalent to a productivity value of 0.7.
The indicated colony counts result from the sum of a triple determination.
Reference media: Tryptic Soy Agar