Preparation method of novel bacteriostatic agent by using dihydromyricetin collaborative organic acid as raw material
A technology of dihydromyricetin and organic acids, which is applied in food science, food preservation, climate change adaptation, etc., can solve the problems of hidden dangers of preservatives and other health hazards, and achieve the effects of significant antibacterial effect, low cost and easy access
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[0014] Example 1: Preparation of highly effective natural preservative
[0015] (1) Anhydrous ethanol is made into 68% ethanol aqueous solution;
[0016] (2) Dissolve a certain mass of dihydromyricetin with a 68% ethanol aqueous solution to make the mass concentration of dihydromyricetin 5g / L;
[0017] (3) Under the condition of 25℃, add a certain amount of lactic acid and citric acid solution to the dihydromyricetin solution in order to make the addition amount of lactic acid reach 0.08% of the total amount and the amount of citric acid added reach 0.1% of the total amount .
[0018] (4) Mix thoroughly with a 200rpm shaker at 25°C for 10 minutes, filter with filter paper to discard the precipitate and take the filtrate, which is the desired high-efficiency natural food bacteriostatic agent;
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