Microencapsulated DHA micro-algal oil containing antioxidant peptides and preparation method thereof
An antioxidant peptide and microencapsulation technology, which is applied in the direction of antimicrobial preservation of food ingredients, food shaping, and food ingredient functions, etc., can solve food safety problems, high use requirements, etc., and achieve good tissue status, Improves stability and contributes to oxidation stability
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[0023] Example 1
[0024] The specific preparation method includes the following steps:
[0025] (1) Prepare whey protein concentrate into a 3% (w / v) solution, add DHA microalgae oil according to the core-wall mass ratio of 1:3, mix well at 800rpm / min, and homogenize twice under 40Mpa high pressure , Make it completely dispersed into the solution;
[0026] (2) After the homogenized solution is cooled, add the antioxidant peptide to the homogenized mixture at a ratio of 0.1%, and mix;
[0027] (3) Prepare a mixed emulsion, mix the gum arabic solution and the solution containing antioxidant peptides in a mass ratio of 1:3, and prepare the gum arabic into a 3% (w / v) solution, using 2% lemon The acid adjusts the pH value to 3.75, causing a complex coacervation reaction;
[0028] (4) The pH-adjusted solution is cooled to 5°C at a rate of 5°C per hour under ice bath conditions, so that the microcapsules settle and form a wet capsule;
[0029] (5) The wall material and core material mixture w...
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