The invention relates to the technical field of tea products, in particular to a preparation process of a double-layer micro-encapsulated freeze-dried tea
crystal containing eurotium cristatum and the tea
crystal. The invention relates to a preparation process of a double-layer micro-encapsulated freeze-dried tea
crystal containing eurotium cristatum. The preparation process comprises the following steps: S1,
solid-state
fermentation; s2, collecting spores; s3, embedding an inner layer; s4,
coating the outer layer; and S5, producing the freeze-dried tea crystal. According to the preparation method, eurotium cristatum spores are cultured in batches in an oolong
tea culture substrate, the eurotium cristatum spores are subjected to
double coating, the microencapsulated spores are implanted into tea soup, and vacuum freeze-
drying operation is performed, so that the freeze-dried tea crystal still has microcapsules retaining the activity of the eurotium cristatum, and the eurotium cristatum can be prepared. After a user drinks the freeze-dried tea crystal with water, the eurotium cristatum with the
probiotic property dissolves the
coating in the intestinal tract, so that the intestinal
flora is regulated, meanwhile, tea soup generated by instant
brewing has the effects of reducing
blood pressure, reducing blood fat, regulating
blood sugar and the like, and the freeze-dried tea crystal becomes a healthier and more efficient beverage.