The invention provides a preparation process of a
selenium-enriched orange peel probiotics product. The preparation process comprises the specific steps of adding
soybean meal cakes into orange peelsfor crushing, adding flour, adding water, adding a saccharifying
enzyme to carry out saccharification for 3-5 hours, then adding
sodium selenite and
zinc oxide powder, inoculating baker
yeast after high-temperature sterilization, carrying out aerobic
fermentation, and carrying out centrifugalization to obtain a supernate and a precipitate; adding water into the precipitate, then adding
neutral protease and
calcium chloride, thermally insulating at 30-40 DEG C for 2-4 hours, then adding crushed mulberry
powder, stirring the mixture for 30-60 minutes, and filtering the mixture to obtain a filtrate I and
pomace I, adding all supernate after high-temperature sterilization of the
pomace I, and carrying out aerobic
fermentation at 25-30 DEG C for 24-48 hours, and filtering the mixture to obtaina filtrate II; and after high-temperature sterilization of
fresh milk, adding
lactic acid bacteria and bifidobacteria for
fermentation for 24-48 hours, mixing and stirring the mixture with the filtrate I at 10-15 DEG C for 3-6 hours, then adding the filtrate II, and uniformly mixing the mixture and storing the mixture at 0-5 DEG C.