Mutual solubility of the lipid components of egg yolk low-density lipoprotein

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Abstract
Several aspects of the mutual solubility of the lipid components of the low-density lipoprotein of egg yolk were investigated. The phospholipids were slightly soluble in the anhydrous triglycerides but became completely insoluble when water was present. Cholesterol showed a preference for the phospho-lipid phase both in the presence and absence of water. This partitioning behavior was taken to support the postulates that the physic ochemical properties of the lipids and their interactions with water may play a major role in controlling their spatial arrangement in the native lipoprotein, and the native lipoprotein contains a nucleus of almost pure triglyceride devoid of phospholipids which is surrounded by phospholipids and cholesterol.