<;P>;PROBLEM TO BE SOLVED: To provide a low-cost emulsifier having high safety and excellent heat-resistant stability and stability over a long period of time. <;P>;SOLUTION: The emulsifier includes an ingredient derived from Sake lees as an active ingredient. Furthermore, in the emulsifier, the ingredient derived from the Sake lees is an extract from the Sake lees with water or a water-soluble solvent which is neutral or alkaline. <;P>;COPYRIGHT: (C)2011,JPO&INPIT