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.

Inactive Publication Date: 2019-03-01
胡爱娣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some methods, the juice of Dendrobium officinale is squeezed or added to be beaten with water, and the juice is filtered out, and the juice is freeze-dried, which fails to achieve full nutritional utilization of the active ingredients of Dendrobium officinale, resulting in low utilization of Dendrobium officinale
[0009] In order to solve the above defects, the inventor has carried out a lot of research work and proposed a new preparation method for vacuum freeze-drying, which has the disadvantages of high cost, long production cycle, and large unit energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention discloses a microwave vacuum freeze drying method for dendrobium officinale ginseng superfine powder. The microwave vacuum freeze drying method comprises the following steps: 1) pretreating: using water for washing off silt from freshly harvested dendrobium officinale and ginseng, and draining water; 2) pulping: pulping the pretreated dendrobium officinale and ginseng with water; 3)concentrating: adopting a reverse osmosis device for concentrating pulp; 4) pre-freezing: using a high speed stirrer for stirring the concentrated solution which is concentrated by the reverse osmosisdevice, and then post-freezing; 5) freeze-drying: putting the pre-frozen concentrated solution into a dry cabin, performing vacuum freeze drying, releasing pressure after the ending of drying, and taking out from the dry cabin; 6) smashing: using a jet mill for smashing, thereby acquiring dendrobium officinale ginseng superfine powder. According to the method disclosed by the invention, freeze-drying time is effectively reduced, freeze-drying energy consumption is reduced, active ingredients and effective constituents are kept and excellent rehydration property of products is maintained.

Description

technical field [0001] The invention relates to a drying method of dendrobium candidum ginseng, in particular to a microwave vacuum freeze-drying method of superfine powder of dendrobium candidum ginseng. Background technique [0002] Dendrobium officinale is a perennial epiphytic herb of Orchidaceae. Born on the semi-shady rocks in the mountains at an altitude of 1600 meters, it likes warm and humid climates and semi-shady and semi-yang environments, and is not cold-resistant. Generally, they can withstand low temperatures of -5°C. Dendrobium can be divided into dozens of species such as yellow grass, nobile, and horsewhip. Dendrobium candidum is the best product of Dendrobium. It is named for its iron-green skin. Dendrobium candidum has unique medicinal value. Its stems are used as medicine, and it belongs to the yin-tonifying medicine in tonic medicine. "Chinese Pharmacopoeia": Yiwei Shengjin, nourishing yin and clearing heat. The tender stems of a few varieties such a...

Claims

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Application Information

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IPC IPC(8): A61K36/8984A61K9/14A61P3/02A61P1/14F26B5/04
CPCA61K9/14A61K36/258A61K36/8984A61K2236/13A61K2236/31A61K2236/51A61P1/14A61P3/02F26B5/048A61K2300/00
Inventor 胡爱娣
Owner 胡爱娣
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