The invention relates to the technical field of
food processing, and in particular relates to a
sparrow chensinensis Kangpu tea as well as a preparation method and application thereof, the preparation method comprises the following steps: extracting
sparrow chensinensis and water according to a ratio of 1: (50-100) at 70-90 DEG C for 40-60 minutes, filtering, and adding
cane sugar to obtain a
fermentation substrate; the preparation method comprises the following steps: preparing seed liquid, namely activating casei paracasei, phytobacterium plantarum,
acetobacter pasteurianus and
kluyveromyces marxianus into seed liquid, inoculating the seed liquid into a substrate according to the inoculum size of 0.5-1.5%, fermenting for 5-10 days under the conditions that the temperature is 37 DEG C and the pressure is 0.03-0.05 MPa, and sterilizing (optionally
drying) to obtain the parochetus ocellatus Kangpu tea. The preparation method of the parochetus ocellatus Kangpu tea is accurate and controllable in
fermentation, safe and stable; the product retains the
nutrition of the raw materials, the
bioavailability of
polyphenol after
fermentation is improved, the
antioxidant activity is enhanced, the
flavor is soft,
caffeine is avoided, and the product is suitable for a wide range of people and can be used for preparing
antioxidant functional food.