Method for processing superfine skin-whitening and freckle-removing powder by using largehead atractylodes rhizome flowers
A technology of Atractylodes atractylodes flower and beauty powder, which can be used in pharmaceutical formulations, cosmetic preparations, skin care preparations, etc. It can solve the problems of unused flowers and achieve ideal particle size distribution, high efficiency, and good fluidity.
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[0009] (1), wash and dry: Remove the calyx and pedicel from the picked fresh Atractylodes macrocephala flowers, pick out the leaves and sundries, rinse the flowers with clean water, and dry them for later use;
[0010] (2) Pre-freezing: Spread the washed and dried Atractylodes macrocephala on the tray, turn on the refrigeration compressor of the freeze dryer to pre-cool the freezer, and when the temperature of the freezer reaches -15°C, place the tray Put it into the freeze-drying chamber, set the freezing temperature to -25°C, and freeze for 30 minutes;
[0011] (3) Frozen sublimation: the frozen Atractylodes macrocephala is in a sublimation state, the temperature is controlled at -20°C--30°C to freeze into a solid state, and the drying vacuum is maintained at 10-15 Pa;
[0012] (4) Dehydration and drying: increase the temperature of the shelf under the tray, gradually increase the temperature to 30°C-35°C, and continue for 10-14 hours, so that the moisture content of Atracty...
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