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Egg Yolk Emulsion (20 %)

20 %, ISO 7932, sterile, stabilised, for microbiology
Icon_Steril Sterile products
Pack Qty.
Density (D) 1 g/cm³
Boiling point (bp) 100 °C
Melting point (mp) 0 °C
Storage temp. +4 °C
Transport temp. ambient temp.

Media supplement for preparation of egg yolk agar for detection of microbial lecithinase activity.
Application: The ISO 7932 recommends a final concentration of 10 % emulsion in the prepared medium in general, e.g. in Mannitol Egg Yolk Polymyxin Agar (Base) (Art. No. 5765.1) for examining the lecithinase activity of Bacillus cereus.
We recommend using TSC Agar (Base) (Art. No. CL51.1), Mannitol Salt Agar (Art. No. CL81.1) or Palcam Listeria Agar (Base) (Art. No. 5768.1) for base agar with the addition of 5 % emulsion.
Add after autoclaving.

100 ml Egg Yolk Emulsion are sufficient for 1 l agar medium.

Egg Yolk Emulsion is used as supplement in nutrient agars for detection of lecithinase activity in m ...
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€45.70/Pack Qty. 

excl. VAT. | 100 ml per Pack Qty.

Art. No. 0402.1

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Egg Yolk Emulsion (20 %) 20 %, ISO 7932, sterile, stabilised, for microbiology

Egg Yolk Emulsion is used as supplement in nutrient agars for detection of lecithinase activity in microbial colonies. Herewith, bacterial species like Bacillus cereus and Clostridium perfringens, or Staphylococcus aureus may be identified. The lecithinase activity can be noted by formation of light, sometimes whitish halos surrounding the colonies.

Technical Information
Certified according to ISO 7932  
Egg Yolk Emulsion (20 %)
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0402.1 100 ml glass €45.70
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Egg yolk20 %  

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