The invention provides a preparation method of a fruit and carrot fermented beverage, and relates to the technical field of biological
fermentation preparation. The preparation method of the fruit carrot fermented beverage comprises the following steps: selecting fresh fruit carrots, washing,
steaming, pulping, filtering and sterilizing to obtain filtrate; adjusting the temperature to 30-40 DEG C, inoculating
lactobacillus fermentum into the filtrate, performing anaerobic
fermentation for 3-6 hours to obtain a
fermentation product A, adjusting the temperature to 28-30 DEG C, inoculating
saccharomyces cerevisiae into the fermentation product A, and performing anaerobic mixed fermentation for 4-9 hours to obtain a fermentation product B; according to the invention,
lactobacillus fermentum is used for pre-fermentation of carrots, and mixed fermentation is carried out in combination with intervention of later-stage
saccharomyces cerevisiae, so that olefinic
terpene substances in the carrots are effectively reduced, the earthy smell in the carrot fermented beverage is improved, and the color, luster and fragrance can be improved on the basis of stably maintaining the
clarity of the existing carrot fermented beverage; the comprehensive competitiveness of the carrot fermented beverage in the market is improved.