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    • 59. 发明专利
    • BLACK TEA PROCESSING METHOD FOR SIMULTANEOUSLY INCREASING CONTENT OF THEAFLAVINS AND THEARUBIGINS
    • NL2024402B1
    • 2021-08-31
    • NL2024402
    • 2019-12-09
    • HANGZHOU ACAD OF AGRICULTURAL SCIENCE
    • JIANYONG ZHANGCUN AOHAITAO HUANGXUXIA ZHENGHONGCHUN CUIJIZHONG YU
    • A23F3/06A23F3/08A23F3/12
    • The present invention discloses a black tea processing method for simultaneously increasing the content of theaflavins and thearubigins. The method, comprises steps of: picking fresh tea leaves of one bud with two leaves, and naturally withering until 5the leaves are soft, the toughness is enhanced, the grassy taste disappears, and the scent of tea leaves appears; placing the withered leaves in a double gland tea rolling machine for acupuncture treatment by an acupuncture device; rolling the acupuncture—treated leaves purely without pressure, spraying a lOfood compound hydrolase solution uniformly, and ball—breaking the rolled leaves after rolling; placing the ball—broken tea leaves in a temperature—control and humidity—control through oxygen fermentation device for a through oxygen fermentation in high temperature and high humidity; subjecting the fermented tea leaves l5to drying, fragrance extraction and processing to obtain a black tea having a content of more than 1.7% of theaflavins and a content of more than 16% of thearubigins as compared, with the black tea made by traditional process, which are increased by more than 20% as compared with the content of theaflavins and 20thearubigins in traditional black tea. This high—quality black tea has a tight shape and strip cable, a brilliant red soup hue, a rich and fresh taste, a rich and lasting aroma, and a dark red foliage fundus, while having sensory evaluation scores more than 3 points higher than the black tea made by traditional process. 25