Microcapsule production technology
A production process and microcapsule technology, which is applied in the direction of microcapsule preparation, capsule delivery, microsphere preparation, etc., can solve the problems of complex preparation process, safety of auxiliary materials, melting of wall materials, etc., and achieve simple operation of the preparation process, safe and reliable use , the effect of preventing the release of the core material
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preparation example Construction
[0041] (a) Preparation of the wall material solution: select the wall material, weigh a quantitative amount of the wall material, soak and swell the wall material, heat and stir to make it dissolve, keep warm, set aside, and control the wall material concentration in the wall material solution to be 30 %~40%;
[0042] (b) Emulsion mixing of core material and wall material: select the core material, weigh a quantitative core material, add emulsifier dropwise to the core material, oscillate to dissolve, add the core material emulsion to the wall material solution, and place it on a constant temperature water bath Stir to form a mixed emulsion of core and wall materials;
[0043] (c) ultrasonic embedding; placing the mixed emulsion of the core material and the wall material under ultrasonic conditions to embed for 30 minutes, and leave it to stand for subsequent use;
[0044] (d) Homogeneous dispersion: After the mixed emulsion of the core material and the wall material is homog...
Embodiment 1
[0048] Embodiment 1: ginger oleoresin microcapsules ultrasonic vacuum drying
[0049] Take fresh ginger, peel and wash it, bake it at 60°C for 8 hours, with a moisture content of 6.57%, act with ethanol for 1 hour, filter, evaporate to dryness in a water bath at 50°C, and dry it in a vacuum oven to obtain the core material ginger oil Resin, wherein the active ingredient is gingerol, with a content of 4.6%.
[0050] 100g of microcapsules contains 90g of wall material, add 8g of alginate and 82g of octenyl succinic acid starch ester (n-OSA starch) into 300ml of distilled water to soak and swell, heat the distilled water to 90°C, stir to dissolve, and cool to 60°C ℃.
[0051] Add emulsifier Tween60 and Span60 composite system 2g in core material ginger oleoresin, the ratio of Tween60 and Span60 is 52%: 48%, emulsion 12ml is added in the wall material solution, put and stir on the constant temperature water bath, stirring speed 700r / min, forming a mixed emulsion of core and wal...
Embodiment 2
[0055] Embodiment 2: high temperature spray drying of ginger oleoresin microcapsules
[0056] In the spray drying process, the inlet air temperature is 170°C, the outlet air temperature is 80°C, and the flow rate is 500L / h.
[0057] Take fresh ginger, peel and wash it, bake it at 60°C for 8 hours, with a moisture content of 6.57%, act with ethanol for 1 hour, filter, evaporate to dryness in a water bath at 50°C, and dry it in a vacuum oven to obtain the core material ginger oil Resin, wherein the active ingredient is gingerol, with a content of 4.6%.
[0058] 100g of microcapsules contains 90g of wall material, add 8g of alginate and 82g of octenyl succinic acid starch ester (n-OSA starch) into 300ml of distilled water to soak and swell, heat the distilled water to 90°C, stir to dissolve, and cool to 60°C ℃.
[0059] Add emulsifier Tween60 and Span60 composite system 2g in core material ginger oleoresin, the ratio of Tween60 and Span60 is 52%: 48%, emulsion 12ml is added in ...
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