Micro-encapsulation magnesium oxide and preparation method thereof
A technology of microencapsulation and magnesium oxide, which is applied in baking, food forming, food science and other directions, can solve problems such as complex methods, achieve the effects of simple process, ensure food safety, and improve suspension stability
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Embodiment 1～5
[0029] Embodiments 1-5: Preparation of Microencapsulated Magnesium Oxide Samples 1-5
[0030] see figure 1 , the preparation method comprises the following steps:
[0031] 1. Hydrogenate palm oil in a water bath at 80-90°C to obtain liquid hydrogenated palm oil;
[0032] 2. Starch sodium octenyl succinate was dissolved in purified water heated to 80°C to obtain a solution;
[0033] 3. Add the magnesium oxide powder into the sodium starch octenyl succinate solution while stirring;
[0034] 4. Add liquid hydrogenated palm oil, turn on the emulsification shearing machine, set the speed at 2500-3000R / min, and the shearing time is 15-30min;
[0035] 5. The emulsified emulsion is transferred to the material temporary storage tank for spray drying; the inlet air temperature is 190°C, the outlet air temperature is 98°C, and the atomization frequency is 45HZ;
[0036] Among them, the mass ratio of magnesium oxide: hydrogenated palm oil: sodium starch octenyl succinate is 10-5:4-2:1...
Embodiment 6
[0040] Embodiment 6: Angle of repose detection of samples 1-5
[0041] According to the existing angle of repose measurement method: take 50g of samples 1-5 respectively, and test them on the standard funnel. The test results of samples 1-5 are all the same. The angle of repose of typical sample 1 is 26°, and the angle of repose is <30°. The material provided by the application can have better fluidity, which is convenient for mixing and processing.
Embodiment 7
[0042] Embodiment 7: the sedimentation velocity detection of sample 1~5
[0043] Take 1g of magnesium oxide, dissolve it in 100g of purified water, stir and mix, and record the sedimentation time. The sedimentation time of ordinary magnesium oxide is 10min. Take 1g of microcapsule magnesium oxide in samples 1-5 and dissolve it in 100g of purified water. Settling time, the settling time of samples 1-5 is similar, the settling time of typical sample 1 is greater than 2 hours.
[0044] It shows that the microcapsule magnesium oxide prepared by the method provided by the present application can be better dispersed in the solution, avoid rapid sedimentation, and can achieve higher stability in the solution.
PUM
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