Microwave vacuum freeze drying method for dendrobium officinale ginseng superfine powder
A technology of Dendrobium officinale and microwave vacuum, which is applied in the directions of drying solid materials, drying solid materials without heating, drying, etc., can solve the problems of not achieving full nutritional utilization of Dendrobium officinale, low utilization rate of Dendrobium officinale, long production cycle, etc. , to avoid heat transfer resistance and heat loss, change the drying time for a long time, and reduce the drying cost.
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Embodiment 1
[0035] A method for microwave vacuum freeze-drying of Dendrobium officinale ginseng superfine powder, the method comprising the following steps:
[0036] 1) Pretreatment: wash the freshly harvested Dendrobium candidum and ginseng with water and drain;
[0037] 2) Beating: put the pretreated Dendrobium candidum, ginseng and water in a ratio of 1:1:2, and put them into a high-speed shearing machine for beating;
[0038] 3) Concentration: transfer the slurry in step 2) to the reverse osmosis device, the reverse osmosis pressure is 0.1-4.0MPa, the reverse osmosis membrane filtration temperature is controlled at 0-30°C, and the volume of the intercepted part is 40% of the total volume. remove the concentrate;
[0039] 4) Pre-freezing: Stir the concentrated solution concentrated by the reverse osmosis device in step 3) at a temperature of -10 to 0°C with a high-speed mixer, and nitrogen gas is introduced while stirring to make it into a porous material with a high porosity. to 50%...
Embodiment 2
[0044] A method for microwave vacuum freeze-drying of Dendrobium officinale ginseng superfine powder, the method comprising the following steps:
[0045] 1) Pretreatment: wash the freshly harvested Dendrobium candidum and ginseng with water and drain;
[0046] 2) Beating: put the pretreated Dendrobium candidum, ginseng and water in a ratio of 1:0.5:4, and put them into a high-speed shearing machine for beating;
[0047] 3) Concentration: transfer the slurry in step 2) to the reverse osmosis device, the reverse osmosis pressure is 0.1-4.0MPa, the reverse osmosis membrane filtration temperature is controlled at 0-30°C, and the volume of the intercepted part is 25% of the total volume. remove the concentrate;
[0048] 4) Pre-freezing: Stir the concentrated solution concentrated by the reverse osmosis device in step 3) at a temperature of -10 to 0°C with a high-speed mixer, and nitrogen gas is introduced while stirring to make it into a porous material with a high porosity. to 3...
Embodiment 3
[0053] A method for microwave vacuum freeze-drying of Dendrobium officinale ginseng superfine powder, the method comprising the following steps:
[0054] 1) Pretreatment: wash the freshly harvested Dendrobium candidum and ginseng with water and drain;
[0055] 2) Beating: Put the pretreated Dendrobium candidum, ginseng and water in a ratio of 1:2:10, put them into a high-speed shearing machine for beating;
[0056] 3) Concentration: transfer the slurry in step 2) to the reverse osmosis device, the reverse osmosis pressure is 0.1-4.0MPa, the reverse osmosis membrane filtration temperature is controlled at 0-30°C, and the volume of the intercepted part is 10% of the total volume. remove the concentrate;
[0057] 4) Pre-freezing: Stir the concentrated solution concentrated by the reverse osmosis device in step 3) at a temperature of -10 to 0°C with a high-speed mixer, and nitrogen gas is introduced while stirring to make it into a porous material with a high porosity. to 20%; t...
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