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Preparation method of dendrobium extract

An extraction solution and technology of dendrobium, which is applied in the field of preparation of dendrobium extraction solution to achieve the effects of improving extraction rate, avoiding the loss of effective components, and stable operating conditions

Pending Publication Date: 2020-09-01
NANJING XIYUAN BIOPHARML SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although experts point out that food irradiated with prescribed doses is safe and will not change the flavor of food, from the perspective of consumers, many consumers still avoid buying irradiated food
Although microwave sterilization can maintain nutritional components and traditional flavor through low-temperature sterilization, there is no method for preparing large quantities of Dendrobium extract by microwave sterilization in the prior art

Method used

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  • Preparation method of dendrobium extract
  • Preparation method of dendrobium extract
  • Preparation method of dendrobium extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of dendrobium extract, comprising the following steps:

[0026] 1) Wash the Dendrobium dendrobium, cut it into 3-6mm segments, add it to water at a mass ratio of 1:20, extract it with water, then let it stand for 1 hour, and then filter it through a 100-mesh filter;

[0027] 2) Heat the filtrate obtained in step 1) to 60°C, then add it to a vacuumized sterilization tank for microwave sterilization, adjust the pressure in the tank to -0.02MPa, and maintain the temperature in the tank at 70°C; the sterilized Stir at the same time, keep 45 rpm; wherein, the frequency of microwave sterilization is 2450MHz, and the sterilization time is 120min;

[0028] 3) After the sterilization is completed, turn on the jacket cooling to reduce the temperature of the material in the tank to 60°C, adjust the pressure in the tank to normal atmospheric pressure, and then concentrate the material at a low temperature at 50°C to a density of 1.05 g / ml, to obtain concentrat...

Embodiment 2

[0030] A preparation method of dendrobium extract, comprising the following steps:

[0031] 1) Wash the Dendrobium dendrobium, cut it into 3-6mm segments, add it to water at a mass ratio of 1:18, extract it with water, let it stand for 2 hours, and then filter it through a 100-mesh filter;

[0032] 2) Warm up the filtrate obtained in step 1) to 60°C, then add it into a vacuumized sterilization tank for microwave sterilization, adjust the pressure in the tank to -0.04MPa, and maintain the temperature in the tank at 85°C; the sterilized Stir at the same time, keep 60 rpm; wherein, the frequency of microwave sterilization is 2400MHz, and the sterilization time is 180min;

[0033] 3) After the sterilization is completed, turn on the jacket cooling to reduce the temperature of the material in the tank to 60°C, adjust the pressure in the tank to normal atmospheric pressure, and then concentrate the material at a low temperature at 60°C to a density of 1.10 g / ml, to obtain concentra...

Embodiment 3

[0035] A preparation method of dendrobium extract, comprising the following steps:

[0036] 1) Wash the Dendrobium dendrobium, cut it into 3-6mm small pieces, add it with water according to the mass ratio of 1:19, extract it with water, then let it stand for 1.5h, and then filter it through a 100-mesh filter;

[0037] 2) Warm up the filtrate obtained in step 1) to 60°C, then add it to a vacuumized sterilization tank for microwave sterilization, adjust the pressure in the tank to -0.03MPa, and maintain the temperature in the tank at 82°C; the sterilized Stir at the same time, keep 50 rpm; wherein, the frequency of microwave sterilization is 2450MHz, and the sterilization time is 150min;

[0038] 3) After the sterilization is completed, turn on the jacket cooling to reduce the temperature of the material in the tank to 60°C, adjust the pressure in the tank to normal atmospheric pressure, and then concentrate the material at a low temperature at 55°C to a density of 1.10 g / ml, t...

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Abstract

The invention belongs to the technical field of plant effective component extraction, and discloses a preparation method of a dendrobium extract. The preparation method comprises the following steps:1) cleaning dendrobium, cutting dendrobium into sections, mixing with water, extracting with water, standing, and filtering with a filter screen; 2) heating the filtrate obtained in the step 1) to 60DEG C, then adding the filtrate into a vacuumized sterilization tank for microwave sterilization, adjusting the air pressure in the tank to -0.02 to -0.04 M Pa, and maintaining the temperature in thetank at 70-85 DEG C; and (3) after the sterilization is finished, opening a jacket for cooling, reducing the temperature of the materials in the tank to 60 DEG C, adjusting the pressure in the tank tothe normal atmospheric pressure, and then concentrating the materials at a low temperature to obtain the concentrated and sterilized dendrobium extract. A microwave sterilization mode is adopted, andthe materials are sterilized at a low temperature under the conditions of a certain range of vacuum degree and microwave frequency, the biological activity of effective components in the dendrobium water extract is retained, and the sterilization efficiency is also ensured.

Description

technical field [0001] The invention relates to the technical field of extraction of plant effective components, and more specifically relates to a preparation method of a dendrobium extract. Background technique [0002] Water-soluble substances such as plant polysaccharides, plant proteins, and pectin contained in Dendrobium are the main sources of the sticky taste of Dendrobium. The sticky taste of dendrobium has also become the main factor for dendrobium to attract consumers. [0003] As far as the known extraction methods of water-soluble substances are affected by the tradition of decocting Chinese medicine, that is, the extraction process of Chinese medicine makes the raw materials of Chinese medicine be decocted in water at 100°C. In addition to wasting energy, the traditional extraction process will also cause high-temperature treatment. Destroy a large number of biologically active substances, and will produce a bitter taste. [0004] The most popular water extra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/8984A61L2/12
CPCA61K36/8984A61K2236/331A61K2236/51A61K2236/53A61L2/0064
Inventor 刘勇业
Owner NANJING XIYUAN BIOPHARML SCI & TECH
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