Solubilities of soy lecithins(various phospholipids)

According to test, both lecithin and hydrolysed lecithin are only slightly soluble in water, but readily hydrate to form emulsions; the oil-free phosphatides are soluble in fatty acids, but are practically insoluble in fixed oilsfor formation of oil-in-water emulsions. The solubilities of soya lecithin and some of its individual ingredients are given as follows:


Medium Water Hexane Alcohol Acetone
Soy lecithin Insoluble/dispersible Soluble Soluble Insoluble
Phosphatidylcholine Soluble/dispersible Soluble Readily soluble Sparingly soluble
Phosphatidylethanolamine Readily soluble/dispersible Soluble Soluble Insoluble
Phosphatidylinositol Readily soluble/dispersible Soluble Insoluble Insoluble
Lysophospholipids Soluble Partially soluble Soluble Soluble


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