PROBLEM TO BE SOLVED: To provide a method for effectively utilizing a highly alkaline astringency-eliminating liquid recovered that is by-produced in an astringency-eliminating process of a raw material originating from an olive.SOLUTION: The method for producing a polyphenol-containing soap comprises a saponification step of saponifying an oil and fat component by mixing and reacting it with an alkaline raw material comprising a liquid containing (1) the highly alkaline astringency-eliminating liquid recovered that is by-produced in the astringency-eliminating step where a raw material originating from an olive is immersed in an alkaline liquid, (2) a concentrate of the astringency-eliminating liquid recovered or (3) a dilute of the astringency-eliminating liquid recovered.COPYRIGHT: (C)2013,JPO&INPIT【課題】オリーブ由来の原料の脱渋工程で副生される高アルカリ性の脱渋液を効果的に利用するための方法を提供する。【解決手段】オリーブ由来の原料をアルカリ性の液体に浸漬する脱渋工程で副生した高アルカリ性の脱渋液について、1)前記脱渋液、2)前記脱渋液の濃縮液又は3)前記脱渋液の希釈液をを含む液体をアルカリ原料とし、当該アルカリ原料と油脂成分とを混合・反応させて鹸化する鹸化工程を含む、ポリフェノール含有石けんの製造方法に係る。【選択図】なし
