<；P>；PROBLEM TO BE SOLVED: To provide a method for washing fishery products and meats, a method for producing an extract raw materials, and a system for reusing washing water. <；P>；SOLUTION: The method includes repeatedly reusing washing water for washing fishery products and meats, after removing water-soluble protein and lipid from the used washing water that fishery products and meats are exposed to and are washed with. Specifically, by heating the used washing water, the soluble protein is coagulated and lipid is separated from the aqueous phase. Then the soluble protein and the lipid are collected separately and are effectively used as a food product or feed material. The repeatedly used washing water, containing extract components transferred and condensed, is used as the extract raw material. <；P>；COPYRIGHT: (C)2011,JPO&INPIT
