Live extraction freeze-dried powder and preparation method thereof
A technology of freeze-dried powder and active extract, applied in the field of skin care products, can solve the problems of decreased activity, less freeze-dried powder, inactivation, etc., to achieve the effects of reducing inflammation, repairing stratum corneum, and promoting cell growth
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Embodiment 1-3
[0064] A live extract freeze-dried powder, comprising the following components:
[0065] Barley Seed Extract, Arginine / Lysine Peptides, Mannitol, Deionized Water.
[0066] In embodiment 1-3, the input amount (unit Kg) of each component sees table 2 for details
[0067] Table 2
[0068] Example 1 Example 2 Example 3 Barley Seed Extract 0.1 0.5 2 Arginine / Lysine Peptides 0.1 0.5 1 Mannitol 3 6 8 Deionized water 85 90 95
[0069] refer to figure 1 , the preparation method of the live extraction freeze-dried powder of embodiment 1-3 comprises the following steps:
[0070] Step 1), add mannitol and 80 parts of deionized water into the first stirred tank, rotate at a speed of 60r / min, stir for 3min, mix well, then heat to 121°C under sealed conditions, and keep warm at 121°C for 20min , left to cool to obtain the first mixture;
[0071] Step 2), adding the barley seed extract and the remaining deionized water into the second s...
Embodiment 4
[0077] Compared with embodiment 2, the difference only lies in:
[0078] Step 1), the mannitol is mixed with 75 parts of deionized water, stirred evenly, and then under sealed conditions;
[0079] Step 4), pre-freezing stage: under normal pressure, cool the freeze-dried powder liquid to a temperature of -35°C, and pre-freeze for 4 hours;
[0080] Step 5), sublimation drying stage: under normal pressure, the temperature was raised to -24°C at a rate of 2°C / min, and then the pressure was controlled at 0.22mbar, and the temperature was raised to -12°C at a rate of 3°C / min, with a constant temperature of 3.5 h, and then raised to 8°C at a heating rate of 3°C / min, and kept at a constant temperature for 2.5h;
[0081] Step 6), desorption drying stage: keep the pressure at 0.22mbar, raise the temperature to 25°C, keep it warm for 2 hours, then reduce the pressure to 0.01mbar, keep it warm for 3 hours, and obtain the live extraction freeze-dried powder.
Embodiment 5
[0083] Compared with embodiment 2, the difference only lies in:
[0084] Step 1), mannitol was mixed with 85 parts of deionized water, stirred evenly, then heated to 123°C under sealed conditions, kept at 123°C for 22 minutes, left to cool, and the first mixture was obtained;
[0085] Step 4), pre-freezing stage: under normal pressure, cool the freeze-dried powder liquid to a temperature of -50°C, and pre-freeze for 2 hours;
[0086] Step 5), sublimation drying stage: under normal pressure, the temperature is raised to -26°C at a rate of 2°C / min, and then the pressure is controlled at 0.28mbar, and the temperature is raised to -8°C at a rate of 3°C / min, and the temperature is maintained for 5h , and then raised to 12°C at a heating rate of 3°C / min, and kept at a constant temperature for 4 hours;
[0087] Step 6), desorption drying stage: keep the pressure at 0.28mbar, raise the temperature to 33°C, and keep it warm for 0.5 hours, then reduce the pressure to 0.05mbar, keep it ...
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