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A high-efficiency purification device for plant extracts and a method for purifying plant extracts

A plant extract and purification device technology, which is applied in the fields of medicinal chemical engineering and natural product purification, can solve the problems of cumbersome operation, high loss of target extract, and high cost, and achieve less loss of organic solvents, less loss of crystallization products, and lower manufacturing costs. cheap effect

Active Publication Date: 2017-03-29
十堰赟天生物科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are various methods for purifying the target components in the extract, and they can be summed up in the following two categories: ①Crystal precipitation method, and then collect the crystals and dissolve and crystallize repeatedly to obtain a high-purity target extract. The operation is cumbersome, the loss of the target extract is large, and the cost is quite high in large-scale production; ②Using column chromatography to separate the target extract, this method wastes a large amount of solvent and produces a large amount of waste liquid discharge during large-scale production, causing serious pollution surroundings
For an enterprise that produces more than ten tons of plant extracts per day, if crystallization or chromatography is used to purify, the production cost will remain high and the environmental pollution will be shocking. In recent years, major media have continuously reported on turmeric production enterprises, gardenia Yellow pigment production enterprises, stevioside production enterprises, etc. have seriously exceeded the standard of pollutant discharge, resulting in environmental damage, difficulty in drinking water for humans and animals, and destruction of ecological balance
It is all because the traditional technology mentioned above is used in the extraction and purification of plant extracts, which is not only inefficient, but also seriously exceeds the standard of exhaust gas or waste liquid discharge

Method used

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  • A high-efficiency purification device for plant extracts and a method for purifying plant extracts
  • A high-efficiency purification device for plant extracts and a method for purifying plant extracts
  • A high-efficiency purification device for plant extracts and a method for purifying plant extracts

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A method for purifying diosgenin using the above-mentioned high-efficiency purification device for plant extracts, the steps:

[0032] 1) Open the lid of the purification tank first, inject the hot No. 120 gasoline or petroleum ether concentrate obtained after extracting diosgenin into the tank body of the purification tank, then close the lid of the purification tank tightly, and place the tank body of the purification tank at 0-15 Cool down in a low-temperature environment until the diosgenin in the concentrated solution is completely precipitated and crystallized, then open the outlet valve, draw out the remaining solution after crystallization, and then continue to inject the above-mentioned hot concentrated solution into the purification tank, continue to cool down, Precipitation and crystallization are repeated until the accumulated volume of diosgenin crystals in the purification tank is more than 2 / 3 of the volume of the purification tank.

[0033] 2) Close the ...

Embodiment 2

[0042] A method for purifying dihydromyricetin using the high-efficiency purification device of the above-mentioned plant extract, its steps:

[0043] 1) Open the cover of the purification tank first, inject cold water at 0-10 degrees Celsius into the tank body of the purification tank, and then slowly inject the hot ethanol concentrate obtained after extracting dihydromyricetin into the tank body of the purification tank, so that the ethanol in the purification tank The final concentration is below 20%. Close the lid of the purification tank, let the mixed liquid in the purification tank cool down until the dihydromyricetin in the mixed liquid is completely precipitated and crystallized, then open the outlet valve, draw out the remaining solution after crystallization, and then Continue to inject hot ethanol concentrate into the tank body of the purification tank, continue to cool down, precipitate and crystallize, and repeat this until the accumulated volume of dihydromyricet...

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Abstract

The invention discloses an efficient purification device of plant extracts and a purification method of the plant extracts. The device comprises a purification tank and a drying cabinet, wherein the purification tank comprises a purification tank body, a purification tank cover, a solvent chamber and a filter plate, the solvent chamber is positioned on the periphery of the purification tank body and is fixed on the purification tank body, the purification tank body is separated from the solvent chamber by the filter plate, a liquid inlet tube and a liquid outlet tube are respectively arranged on the solvent chamber, the drying cabinet comprises a drying cabinet body and a cabinet door, a gas outlet is formed in the top of the drying cabinet body, a gas inlet tube is arranged at the bottom of the drying cabinet body, a sieve-shaped support plate is arranged on the lower part of the drying cabinet body, the drying cabinet body is divided into a purification tank placing chamber and a heating chamber by the sieve-shaped support plate, and a heat exchanger tube is installed in the heating chamber. According to the method, the purification device is utilized to purify the plant extracts by using chromatography, and a good effect is achieved. The purification device has the advantages of simple structure, convenience in use and low manufacturing cost. The method has the advantages of simple process flow and high purification efficiency, and the consumption of organic solvents is greatly reduced.

Description

technical field [0001] The invention relates to the technical fields of medicinal chemical engineering and natural product purification, and more specifically relates to a high-efficiency purification device for plant extracts and a method for purifying plant extracts. The device and method are applicable to the purification of most plant extracts. Background technique [0002] Natural products of plant origin are important sources of medicine and food for human needs. Before natural products are extracted from plant materials and used as pharmaceutical raw materials, purification methods are required to obtain high-purity target components. There are various methods for purifying the target components in the extract, and they can be summed up in the following two categories: ①Crystal precipitation method, and then collect the crystals and dissolve and crystallize repeatedly to obtain a high-purity target extract. The operation is cumbersome, the loss of the target extract...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D9/02
Inventor 董静洲
Owner 十堰赟天生物科技发展有限公司
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