PROBLEM TO BE SOLVED: To provide a method for producing a tea extract which can reduce a gallate type catechin.SOLUTION: The tea extract having low content of the gallate type catechins which is a bitterness component is obtained by: passing a solution of the tea extract to a column 14 filled with a weakly acidic cation exchange resin including a functional group of carboxylic acid contacting a tea extract solution and the weakly acidic cation exchange resin and subjecting the gallete type catechins in the tea extract solution to adsorption treatment.COPYRIGHT: (C)2012,JPO&INPIT【課題】ガレート型カテキンを低減させることができる茶抽出物の製造方法を提供する。【解決手段】カルボン酸の官能基を含む弱酸性陽イオン交換樹脂を充填したカラム14に茶抽出液を通液して、茶抽出液と該弱酸性陽イオン交換樹脂とを接触させ、茶抽出液中のガレート型カテキンを吸着処理することにより、苦渋成分であるガレート型カテキンの含有率が低い茶抽出物を得る。【選択図】図1
