Fish Nutrition and Feed Technology (2+1)

Unit 4 - Lipids

4.4.1. Phospholipids

Within the animal body the phospholipids represent the second largest lipid component after the triglyceride fats and oils. All phospholipids are yellow greasy solids and share the property of being soluble in lipid solvents with the exception of acetone (this property allows them to be readily distinguished from fatty acids).

According to the nitrogenous base present, phospholipids may be divided into two groups: lecithins (nitrogenous base choline) and cephalins (nitrogenous base - ethanolamine).