Merck, 1121220010, PALCAM Listeria selective supplement

General description
PALCAM Listeria Selective Supplement is a mixture of three antibiotics in lyophilized form. It inhibits the growth of accompanying bacteria in the selective cultivation of Listeria monocytogenes.
Application
PALCAM Listeria Selective Supplement is an additive for the preparation of PALCAM Listeria Selective Agar (1.11755) and L-PALCAM Listeria-Selective Enrichment Broth (Base) (1.10823).
Analysis Note
Supplement tested in PALCAM-Listeria-Selektive agar (Base) acc. to VAN NETTEN et al. art. no. 1.11755.
Recovery on test medium
- Listeria monocytogenes ATCC 13932 (WDCM 00021):
≥ 50 %
- Listeria monocytogenes ATCC 19111 (WDCM 00020): ≥ 50 %
- Listeria monocytogenes ATCC 35152 (WDCM 00109): ≥ 50 %
- Listeria innocua ATCC 33090 (WDCM 00017): ≥ 50 %
- Staphylococcus aureus ATCC 6538 (WDCM 00032): ≤ 0.01 %
- Enterococcus faecalis ATCC 19433 (WDCM 00009): ≤ 0.01 %
- Escherichia coli ATCC 25922 (WDCM 00013): ≤ 0.01 %
Black zone
- Listeria monocytogenes ATCC 13932 (WDCM 00021):
+
- Listeria monocytogenes ATCC 19111 (WDCM 00020): +
- Listeria monocytogenes ATCC 35152 (WDCM 00109): +
- Listeria innocua ATCC 33090 (WDCM 00017): +
Incubation: Listeria 48 hrs.; 35 °C; aerobaic. Other strains 72 hrs.; 30 °C; aerobic.
Other Notes
Replaces: 1.12122.0017