PROBLEM TO BE SOLVED: To provide a purifying method where tea extract is efficiently and highly clarified.SOLUTION: In the purifying method of the tea extract, the pH of the tea extract is controlled to 5.5 or less the tea extract is made in contact with minute bubbles having a median diameter of 1-200 &mum and then a bubble layer formed on the surface of a liquid is removed.COPYRIGHT: (C)2011,JPO&INPIT【課題】茶抽出物を効率よく高度に清澄化する精製方法を提供すること。【解決手段】茶抽出物のpHを5.5以下に調整し、次いでこれをメジアン径1~200μmの微細気泡と接触させ、次いで液表面に形成された泡の層を除去する、茶抽出物の精製方法。【選択図】なし
