The invention discloses yellow yellow
wine and a preparation method thereof, and belongs to the technical field of
wine brewing. The method comprises the following steps: by taking broomcorn millet as a
raw material, soaking, cooking congee, mixing with
yeast, carrying out main
fermentation, carrying out secondary
fermentation, adding vacuum freeze-dried yellow
pollen after the secondary
fermentation is completed, and then carrying out after-
ripening, squeezing, decocting
wine, aging and storing and finishing. According to the method, active ingredients in the day lily are fully dissolved out and stably retained by optimizing the day lily adding time and the after-
ripening process. In the obtained yellow yellow wine, the total
phenol content is not lower than 0.50 mg / mL, the
flavonoid content is not lower than 0.12 mg / mL, the
vitamin C content is not lower than 11 mu g / mL, the
hydroxyl radical scavenging rate is not lower than 85%, the
amino acid content is not lower than 3300 mu g / mL, and the yellow yellow wine has remarkable
antioxidant activity and enhanced
nutrition flavor.