Abstract: There is a method of separating phosvitin and HDL proteins from an egg yolk composition. The egg yolk composition includes HDL proteins bound to phosvitin. At least a portion of the HDL proteins are hydrolysed to cause the HDL proteins and phosvitin to become unbound and forming a hydrolysed solution comprising hydrolysed HDL, phosvitin and peptides. The hydrolysed HDL is separated from the phosvitin and peptides to form a separated hydrolysed HDL composition and a separated phosvitin and peptide solution. One resulting product is an egg yolk composition formed having at least 20% solids by mass of phosvitin phosphopeptides unbound from HDL. Another resulting product is an egg yolk composition having at least 80% hydrolysed HDL-derived lipopeptide solids by mass.

Abstract: There is a method of producing a hydrolysed egg yolk plasma product from egg yolk elements. The egg yolk elements include phospholipids and proteins. The method comprises introducing a hydrolysing agent into the egg yolk elements to hydrolyse at least a portion of the proteins in the egg yolk elements to form the hydrolysed egg yolk plasma product. There also is a composition formed using the method above. There is also an egg yolk composition formed from egg yolk, comprising at least 15% phospholipids solids by dry mass, at least 20% protein by dry mass, the protein being at least partially hydrolysed into peptides and at least 40% lipids other than phospholipids by dry mass.