PROBLEM TO BE SOLVED: To provide a purified tea extract useful as materials of catechin containing beverage which has a good aftertaste and quaffable when kept in the mouth.SOLUTION: The method for producing purified tea extract obtained by adsorbing tea extract liquid or its concentrate on a synthetic adsorbent and then bringing the synthetic adsorbent into contact with an aqueous solution of organic solvent to elute the nonpolymer catechins, wherein the tea extract contains (A) the nonpolymer catechins and (B) caffeines in a mass ratio [(B)/(A)] of 0.05 or less, includes a step of subjecting the extract to a step passing an ultrafiltration membrane.COPYRIGHT: (C)2011,JPO&INPIT【課題】口に含んだときに後味が良好で飲みやすいカテキン類含有飲料の原料として有用な精製茶抽出物を提供すること。【解決手段】茶抽出液又はその濃縮物を合成吸着剤に吸着させた後、合成吸着剤に有機溶媒水溶液を接触させて合成吸着剤から非重合体カテキン類を脱離させて得られる茶抽出物であって、(A)非重合体カテキン類と、(B)カフェインとの含有質量比[(B)/(A)]が0.05以下である茶抽出物を、限外濾過膜に通過させる工程を含む、精製茶抽出物の製造方法。【選択図】なし
