Lactic Acid Esters of Mono and Diglycerides It is a lipophilic, non-ionic white powder with Kosher certification that has a wider use range. surfactant. White powder or flake solids called lactic acid esters of mono and diglycerides of fatty acids are easily soluble in hot grease and oils, are insoluble in cold water, and can be dispersed in hot water. They can emulsify, stabilize, and increase air retention, and are used in cakes, cream, and other products.