Egg Yolk Tellurite Emulsion 20% 50ml

Description

Catalogue Number	103785
Replaces	1.03785.0007

Product Information

HS Code

3821 00 00

Physicochemical Information

Density

1.02 g/cm3 (20 °C)

Storage and Shipping Information

Storage

Store at +2°C to +8°C.

Specifications

Appearance	pale yellow emulsion
Sterility test	sterile
Typical composition: Sterile egg-yolk 200 ml; NaCl 4.25 g; potassium tellurite 2.1 g; distilled water to give a final volume of 1000 ml.
Egg-yolk Tellurite Emulsion tested in BAIRD-PARKER-Agar Art. 1.05406.
Inoculum on reference medium - Staphylococcus aureus ATCC 25923 (WDCM 00034)	10 - 100
- Staphylococcus aureus ATCC 6538 (WDCM 00032)	10 - 100
Inoculum - Escherichia coli ATCC 25922 (WDCM 00013)	> 10⁴
- Escherichia coli ATCC 8739 (WDCM 00012)	> 10⁴
- Staphylococcus saprophyticus ATCC 15305 (WDCM 00159)	> 10⁴
- Staphylococcus epidermidis ATCC 12228 (WDCM 00036)	> 10⁴
Recovery on test medium - Staphylococcus aureus ATCC 25923 (WDCM 00034)	≥ 70 %
- Staphylococcus aureus ATCC 6538 (WDCM 00032)	≥ 70 %
Growth - Escherichia coli ATCC 25922 (WDCM 00013)	no growth
- Escherichia coli ATCC 8739 (WDCM 00012)	no growth
- Staphylococcus saprophyticus ATCC 15305 (WDCM 00159)	poor to fair
- Staphylococcus epidermidis ATCC 12228 (WDCM 00036)	poor to fair
Colony colour - Staphylococcus aureus ATCC 25923 (WDCM 00034)	black
- Staphylococcus aureus ATCC 6538 (WDCM 00032)	black
- Staphylococcus saprophyticus ATCC 15305 (WDCM 00159)	black-grey
- Staphylococcus epidermidis ATCC 12228 (WDCM 00036)	black-grey
Clear zones - Staphylococcus aureus ATCC 25923 (WDCM 00034)	+
- Staphylococcus aureus ATCC 6538 (WDCM 00032)	+
- Staphylococcus saprophyticus ATCC 15305 (WDCM 00159)	-
- Staphylococcus epidermidis ATCC 12228 (WDCM 00036)	-
Incubation: 24 - 48 hrs. at 37°C, E.coli: 48 hrs. Reference: Tryptic soy agar.