Uses
- It is sometimes separated from the egg whites and used in cooking (for mayonnaise, custard, hollandaise sauce, crème brûlée, avgolemono, and ovos moles).
- It is used in painting as a component of traditional egg-tempera.
- It is used in the production of egg-yolk agar plate medium, useful in testing for the presence of Clostridium perfringens.
- Egg yolks also contains an antibody called antiglobulin (IgY). The antibody transfers from the laying hen to the egg yolk by passive immunity to protect both embryo and hatchling from microorganism invasion.
- Egg yolk can be used to make liqueurs such as Advocaat or eggnog.
- Egg yolks are used to extract Egg Oil which has various cosmetic, nutritional and medicinal uses.
- The developing embryo inside the egg uses the yolk as sustenance.
Read more about this topic: Yolks