| abstract |
The present invention provides a method for producing a non-polymer catechins-containing composition in which the occurrence of precipitation is suppressed even after long-term storage. SOLUTION: To a green tea extract containing 10 to 90% by weight of non-polymer catechins, a mixed solvent having an organic solvent / water weight ratio of 0/100 to 97/3 is added, and activated carbon and / or acidic After contact treatment with white clay or activated clay, phytic acid or a salt thereof is added in an amount of 5 to 10,000 ppm with respect to the total weight of the green tea extract, organic solvent and water, and then the solid content for separating the turbid components precipitated in the mixed solution A method for producing a purified green tea extract containing 36 to 99% by weight of non-polymer catechins therein. [Selection figure] None |