Method for embedding a load based on gel high hydrostatic pressure liquefaction

A method for encapsulating a load based on melting of pectin gel under high hydrostatic pressure, comprising the following steps:

• (1) dissolving a first pectin gel in distilled water, stirring at room temperature for 8-12 hours, and then placing in a water bath at 80-90° C., after a temperature of the first pectin gel is stable, adding soluble solid stirring to obtain a mixed solution, then pouring the mixed solution into a first package, hermetically packaging in vacuum, and cooling to obtain a vacuum-packaged pectin gel, wherein mass concentrations of the first pectin gel and the soluble solid in the mixed solution are respectively 0.5-2% and 50-70%;
• (2) placing the vacuum-packaged pectin gel in a first pressure vessel filled with pressure transmitting liquid, and treating at a pressure of 400-600 MPa for 5-30 minutes;
• (3) converting the vacuum-packaged pectin gel into a sol, mixing the load and the sol, and stirring to obtain a mixture, wherein the mixing and the stirring in step 3 are complete within 10 to 20 minutes after the pressure in step 2 is released;
• (4) pouring the mixture into a mold to obtain a formed pectin gel;
• (5) drying the formed pectin gel to a constant weight to obtain a dried pectin gel;
• (6) dissolving a second pectin gel in distilled water, stirring at room temperature to obtain a solution A for 8 to 12 hours, and adjusting pH of the solution A, wherein a mass concentration of the second pectin gel is 2-5%, the pH of the solution A is 8-12, and an esterification degree of the first pectin gel is higher than an esterification degree of the second pectin gel;
• preparing a calcium salt solution having a Ca2+ concentration of 1-5 mmol/L to obtain a solution B;
• and
• (7) infiltrating the dried pectin gel in the solution B, transferring the dried pectin gel to the solution A, and then transferring the dried pectin gel from the solution A to the solution B.