Specifications | |
---|---|
Appearance (clearness) | clear |
Appearance (colour) | yellowish to yellowish-brown |
Solidification behaviour (2 hrs., 40 °C) | liquid |
Solidification behaviour (4 hrs., 45 °C) | liquid |
pH-value (25 °C) | 6.8 - 7.2 |
Growth promotion test in accordance with the current version of DIN EN ISO 11133. | |
Incubation: 72 ± 3 hours at 30 ± 1 °C; aerobic | |
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)) | |
Inoculum on reference medium (Lactococcus lactis spp. lactis ATCC 19435 (WDCM 00016)) | 10 - 100 |
Inoculum on reference medium (Listeria monocytogenes ATCC 19118) | 10 - 100 |
Inoculum on reference medium (Lactobacillus acidophilus ATCC 4356 (WDCM 00098)) | 10 - 100 |
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)) | |
Colony count (Lactococcus lactis spp. lactis ATCC 19435 (WDCM 00016)) | |
Colony count (Listeria monocytogenes ATCC 19118) | |
Colony count (Lactobacillus acidophilus ATCC 4356 (WDCM 00098)) | |
Recovery on test medium (Staphylococcus aureus ATCC 6538 (WDCM 00032)) | ≥ 70 % |
Recovery on test medium (Staphylococcus aureus ATCC 25923 (WDCM 00034)) | ≥ 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 % |
Recovery on test medium (Lactococcus lactis spp. lactis ATCC 19435 (WDCM 00016)) | ≥ 70 % |
Recovery on test medium (Listeria monocytogenes ATCC 19118) | ≥ 70 % |
Recovery on test medium (Lactobacillus acidophilus ATCC 4356 (WDCM 00098)) | ≥ 70 % |
Incubation: 24 hours at 35 - 37 °C; aerobic | |
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 (Staphylococcus aureus ATCC 6538 (WDCM 00032)) | ≥ 70 % |
Recovery on test medium (Staphylococcus aureus ATCC 25923 (WDCM 00034)) | ≥ 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 % |
Reference: Tryptic soy agar. S.aureus, E.coli and B.subtilis tested with pour plate technic. 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. Other strains in single determination with spiral platemethode. |