Any of a diverse class of saturation ) solution of ammonium sulfate.
They are readily coagulated by heating. Examples include serum albumin, a major component of plasma ; α-lactalbumin, found in milk; ovalbumin, which makes up about half the proteins of egg white; and conalbumin, another egg-white protein. Ovalbumin is used commercially in the food, wine, adhesives, paper coatings, pharmaceutical, and other industries and in research.