PROBLEM TO BE SOLVED: To provide a method for producing a purified tea extract with which solubility of non-polymer catechins in solvents has been increased.SOLUTION: A method for producing a purified tea extract involves bringing a tea extract into contact with a magnesium or lithium cation exchange resin.COPYRIGHT: (C)2013,JPO&INPIT【課題】非重合体カテキン類の溶媒に対する溶解性を高めた精製茶抽出物の製造方法を提供すること。【解決手段】茶抽出物をマグネシウム型又はリチウム型のカチオン交換樹脂と接触させる、精製茶抽出物の製造方法。【選択図】なし