|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||426/050 ; 426/049 ; 426/052 ; 426/590 ; 426/597|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 4 인용 특허 : 6|
A process for the preparation of acid stable instant tea. Enzymatic extraction of black tea leaf with water containing tannase and one or more cell wall digesting enzymes, such as cellulase, pectinase, hemicellulase or VISCOZYME is employed. The resulting tea extract can then be pasteurized, polished, and made into a finished beverage or concentrated and dried in the usual manner. As a result, natural tea products are obtained which have improved acid stability, good color and good clarity.
[ What is claimed is:] [1.] A process for producing a soluble black tea product by enzymatic extraction, said product upon being reconstituted into an acidic beverage remaining stable, comprising the steps of:(1) co-extracting fermented black tea leaf with water and an enzyme combination comprising tannase and one or more cell wall-digesting enzymes which break down one or more tea cell wall constituents to simpler materials;(2) inactivating the enzymes by heating; and(3) clarifying the extract; reby said acidic beverage remains flocculate free for 48 ho...