PROBLEM TO BE SOLVED: To provide a method for producing a green tea extract that contains high-purity nonpolymeric catechins rich in gallate-type nonpolymeric catechins.SOLUTION: A method for producing a green tea extract includes the following steps of: (A) bringing raw tea leaves into contact with water at 80-100°C (B) cutting the tea leaves after step (A) (C) bringing the tea leaves after step (B) into contact with water at 0-40°C (D) applying extraction treatment to the tea leaves after step (C) with water at 50-100°C.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】ガレート型非重合体カテキン類に富む非重合体カテキン類を高純度で含有する緑茶抽出物の製造方法を提供すること。【解決手段】下記(A)~(D)の工程を含む、緑茶抽出物の製造方法。(A)生茶葉を80~100℃の水と接触させる工程(B)工程(A)後の茶葉を裁断する工程(C)工程(B)後の茶葉を0~40℃の水と接触させる工程(D)工程(C)後の茶葉を50~100℃の水にて抽出する工程【選択図】なし
