| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for preparing a cold water infusing leaf tea developing good taste, flavor and color. SOLUTION: Green tea leaves are macerated, treated with tannase, fermented in the presence of hydrogen peroxide in an amount sufficient to activate endogenous peroxidases to oxidize gallic acid and other compounds liberated by the tannase treatment, and the product is dried. The final product is a black leaf tea which can be infused in hot or cold water to give good taste, flavor and color. COPYRIGHT: (C)2010,JPO&INPIT |
