PROBLEM TO BE SOLVED: To provide a method for easily producing a tea extract containing purified catechins having excellent flavor while eliminating a gallic acid.SOLUTION: The method for producing the tea extract containing the purified catechins includes: a first step of mixing the tea extract containing catechins, a hydrophilic organic solvent, water and an organic acid salt at the quantitative ratio of forming two phases and a second step of performing liquid-liquid separation between a phase rich in the hydrophilic organic solvent and a phase rich in the water, and recovering the catechins from the phase rich in the hydrophilic organic solvent.COPYRIGHT: (C)2012,JPO&INPIT【課題】没食子酸を除去しつつ、風味の良好な精製カテキン類含有茶抽出物を簡便に製造する方法を提供すること。【解決手段】カテキン類含有茶抽出物と、親水性有機溶媒と、水と、有機酸塩とを2相を形成する量比で混合する第1の工程と、親水性有機溶媒に富む相と、水に富む相とに液液分離し、親水性有機溶媒に富む相からカテキン類を回収する第2の工程含む、精製カテキン類含有茶抽出物の製造方法。【選択図】なし
