Saponifiable lipid

A saponifiable lipid is part of the ester functional group. They are made up of long chain carboxylic (of fatty) acids connected to an alcoholic functional group through the ester linkage which can undergo saponification, hence the name. The fatty acids are released on based catalyzed ester hydrolysis. The primary saponifiable lipids are triacylglycerides, glycerophospholipids, and the sphingolipids.
ontain esters, which can undergo saponification(hydrolysis under basic conditions) (waxes, triglycerides, phospho-glycerides, sphingolipids)
A non-saponifiable class is made up of "fat-soluble" A and E vitamins and cholesterol. Under basic conditions -- like phospholipids, glycolipids, sphingolipids, and the waxes-- it can be hydrolyzed. These lipids are known as complex lipids.