A method for extracting fermented tea Mao Yan Berry dihydromyricetin

The method of extracting a fermented tea Mao Yan Berry dihydromyricetin, to a Mao Yan raspberry tea extraction of active ingredients, comprising the steps of: pulverizing and Mao Yan Berry tea reflux extraction, processing static filtrate was concentrated set to obtain juice; sucrose is added and sterilized in tea; active Dry Yeast after mixing with sucrose solution, a thermostatic water bath access active Dry Yeast activation of sterilized juice; tea after inoculation fermentation placed shaker; the extract was concentrated to give, after drying DMY coarse recrystallized to give pure dihydromyricetin. The present invention using a liquid fermentation extract of tea Mao Yan Berry DMY, can consume Mao Yan Berry aqueous extract of sugar, protein and other nutrients, to reduce the viscosity of the hot water extract was concentrated so dihydro DMY quickly settling down, effective use of Mao Yan raspberries tea resources, to improve the yield of DMY.