Food composition with senile-resistant and whitening functions and preparation method thereof
A composition and efficacy technology, applied to a food composition for lightening and whitening and its preparation, firming skin, moisturizing and anti-aging fields, can solve the problems of affecting product flavor, hindering the enzymatic hydrolysis process, generating heteropeptides and the like, and achieving The effect of eliminating adverse effects, pure color and quality improvement
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[0036] A preparation method of nutritional composition is characterized in that comprising the following steps:
[0037] Step 1, after cleaning, shearing and pre-filtering the bonito elastin raw material, put it into 1% sodium citrate and 1.2% sodium chloride solution, wherein protease A is added in the solution, and the temperature is controlled at 12-15 Keep at ℃ for 3 hours; then raise the temperature to 55-60℃, add protease B, keep for 4-6 hours, inactivate the enzyme, filter and collect the filtrate to obtain elastin peptide solution.
[0038] Step 2, put the fish skin in 1.8% sodium chloride solution, soak it at a low temperature of 120°C for 4-7 hours, then wash it with water until it is neutral, drain the water, and pulverize it to obtain a crude fish collagen extract. Add deionized water to the extract to adjust the pH, add 1% alkaline protease, and treat at 60°C for 3 hours; then add papaya and fig zymogen, continue enzymatic hydrolysis at 52°C for 4 hours, inactivat...
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