| 摘要 |
Q 7052 (R) The present invention relates to a process for the preparation of a concentrated tea extract comprising the steps of: (a) extracting tea-leaves with water having a temperature between 15 and 50.degree.C and separating the first extract from the tea-leaves; (b) extracting tea-leaves which have previously been extracted with water between 15 and 50.degree.C for a second time, with water having a temperature of more than 50.degree.C and separating the second extract from the tea-leaves; (c) concentrating said first extract to obtain a first concentrate; (d) concentrating said second extract to obtain a second concentrate; and (e) combining said first and second concentrate, wherein said first extract is concentrated by subjecting it to reverse osmosis at a temperature between 20 and 50.degree.C and said second extract is concentrated between 50 and 100.degree.C. |
