Fermented beverage and preparation method thereof

The invention discloses a fermented beverage and a preparation method thereof, and belongs to the technical fields of fermentation and biology. The invention provides the method for preparing the fermented beverage by using fruits and/or vegetables as raw materials, after fermentation is performed for 23 days by using the method, the pH value of the fermented beverage can reach 3.2-3.8, and the total titration acidity can reach 12-18 mg/mL, so that the fermentation cycle of preparing the fermented beverage by using the method is short, and the method is conducive to industrial production. Theinvention provides the method for preparing the fermented beverage by using the fruits and/or the vegetables as the raw materials, after fermentation is performed by using the method for 23 days, thecontent of total flavonoids in the fermented beverage can be as high as 0.5-2.0 mg/mL, so that the fermented beverage prepared by using the method has a high content of active ingredients such as theflavonoids, and is benefici