The application belongs to the technical field of food manufacturing, and specifically discloses a preparation method of fermented flower and
fruit juice drink, which uses
solid-liquid secondary
fermentation as a technical means, and performs
solid fermentation on dehydrated, kneaded and sterilized fresh flowers by connecting the
fermentation bacteria, grinds the flower petals after fermentation, and obtains the leaching liquor through
water extraction, mixes the leaching liquor with
fruit juice, and then performs liquid fermentation, and obtains the fermented flower and
fruit juice through sterilization, compounding, homogenization and clarification. The application uses different types of probiotics in combination with the preparation method of
solid-liquid fermentation, effectively improves the free radical removal rate, total
phenol content and
polyphenol bioavailability in the flower and fruit juice, and thus improves the
antioxidant activity and nutritional value of the flower and fruit juice; meanwhile, a large amount of
flavor substances and nutritional substances are produced in the fermentation process, and the substances interact with each other to produce rich metabolic products, and the
nutritional quality and
flavor diversity of the flower and fruit juice are improved; the secondary fermentation also brings a large amount of active probiotics, and has the effects of helping
digestion and adjusting the
gastrointestinal system.