Method for preparing porous starch embedded walnut oil powder
A technology of porous starch and walnut oil, applied in the fields of edible oil/fat, food science, application, etc., can solve the problems of rancidity, unfavorable storage, shorten the shelf life, etc., and achieve the effect of reducing the spoilage rate
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Embodiment 1
[0010] The object of the present invention is to provide a kind of preparation method of porous starch-embedded walnut oil powder that is convenient for processing, beneficial to storage, and easily digested and absorbed by the human body, comprising the following steps:
[0011] Preparation of walnut oil powder: take a certain amount of walnut oil in a beaker, add a certain amount of porous starch to make the mass volume concentration (W / V) of the porous starch reach 20-45%, fully stir, mix evenly, and carry out with a spray drier. Spray drying, spray drying conditions: inlet air temperature 160°C-185°C; outlet air temperature 80°C-88°C; flow rate 8.5ml / min; atomizer speed 25000-45000r / min. The powdered walnut oil is prepared and packaged and sealed.
Embodiment 2
[0013] Using walnut oil as the material, accurately measure 100mL of walnut oil into a beaker, add 20 grams of porous starch to make the mass volume concentration of the starch reach 20%, stir well to mix the starch and walnut oil evenly, the air inlet temperature is 175°C, and the air outlet The temperature is 84° C., the flow rate is 8.5 ml / min, and the atomizer rotates at 30,000 r / min to carry out spray drying to prepare powdered walnut oil, which is packaged and sealed. After being stored at room temperature for 18 months, compared with the walnut oil without embedding agent, the deterioration rate is reduced by 36%, and the shelf life of the porous starch-embedded walnut oil powder can reach 32 months.
Embodiment 3
[0015] Using walnut oil as the material, accurately measure 100mL of walnut oil into a beaker, add 32 grams of porous starch to make the mass volume concentration of the starch reach 32%, stir well to mix the starch and walnut oil evenly, the air inlet temperature is 175°C, and the air outlet The temperature is 84° C., the flow rate is 8.5 ml / min, and the atomizer rotates at 30,000 r / min to carry out spray drying to prepare powdered walnut oil, which is packaged and sealed. After storage at room temperature for 18 months, compared with the walnut oil without embedding agent, the deterioration rate is reduced by 29%, and the shelf life of the porous starch-embedded walnut oil powder can reach 28 months.
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