|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||A23F-003/08 A23F-003/12 A23F-003/14 A23L-001/272|
|미국특허분류(USC)||426/052; 426/262; 426/597|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 9 인용 특허 : 2|
A method for preparing a cold water infusing leaf tea. Green tea leaves are macerated, treated with tannase, fermented in the presence of hydrogen peroxide in an amount that is sufficient to activate endogenous peroxidases to oxidise gallic acid and other compounds that are liberated by the tannase treatment, and then dried. The final product is a black leaf tea that infuses in hot or cold water to give good flavour and colour.
1. A method for preparing a cold water infusing leaf tea comprising the steps of macerating green tea leaves, treating the macerated leaves with tannase by direct application of the tannase to the macerated leaves in a solid state, fermenting the tannase-treated macerate for a time that is sufficient to generate gallic acid and theaflavin, continuing the fermentation in the presence of an amount of hydrogen peroxide that is sufficient to activate endogenous peroxidases to produce a fermented leaf material, and drying the fermented leaf material to yield ...