The invention discloses a preparation method of
sturgeon roe
peptide freeze-dried
powder with an anti-
aging effect. The preparation method specifically comprises the following steps: (1) unfreezing
sturgeon roes, adding water, uniformly stirring,
grinding and crushing, and adjusting the pH value; (2) heating and naturally cooling; (3) adding
alkaline protease, uniformly stirring, carrying out enzymolysis, and adding
starch sodium octenylsuccinate and
vitamin E
powder; (4) carrying out
enzyme inactivation, naturally cooling, and adjusting the pH value; (5) carrying out rough
filtration and centrifugal treatment, taking supernate, adsorbing, filtering and taking filtrate; and (6) carrying out plate frame
filtration, taking filtrate, carrying out vacuum
freeze drying, screening and packaging, thereby obtaining the product. The preparation method disclosed by the invention has the advantages of simplicity and convenience in operation, low cost, high embedding yield and the like, and has important significance in improving the stability and
biological activity of the
sturgeon roe
peptide. Moreover, the sturgeon roe
peptide freeze-dried
powder has an anti-
aging effect, and can be widely applied to oral liquid,
solid beverages, tablet candies and the like in common foods.