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Decompressed microwave extraction device and method for extracting plant effective ingredient

A plant active ingredient and extraction device technology, which is applied in the field of plant active ingredient extraction devices to achieve the effects of reducing the vaporization temperature, increasing the speed, and reducing the temperature

Inactive Publication Date: 2008-10-01
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no report on the vacuum solvent circulation microwave extraction device and method with plant active ingredients as the application object

Method used

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  • Decompressed microwave extraction device and method for extracting plant effective ingredient
  • Decompressed microwave extraction device and method for extracting plant effective ingredient

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Embodiment 1

[0020] figure 1 Among them, the present invention is a microwave extraction system for decompression solvent circulation, including a microwave oven 1, an extraction tank 2, a condenser 10, a gas-liquid separator 12, and a decompression device 15; the microwave oven 1 is evenly arranged outside the metal protective layer 28 Generator 27, protection layer 28 is positioned at the periphery of extraction tank 2, as figure 2 As shown; the outer wall of the microwave oven 1 and the outer wall of the extraction tank 2 outside the microwave oven form a closed microwave cavity to prevent microwave leakage.

[0021] Inside the extraction tank 2 is an extraction chamber 3, on which there is a degausser 5 to prevent microwave leakage and metal ignition; the agitator 7 is installed in the extraction chamber 3 to ensure that the materials in the extraction chamber 3 are evenly mixed, and a seal is provided at the contact point device 6, and the upper part of the extraction chamber 3 also...

Embodiment 2

[0026] The extraction method of the present invention comprises: crushing dried scutellaria baicalensis into 50-100 meshes and adding it to the extraction chamber of the extraction tank, then adding 600-1200% water by weight of the material in the extraction tank, and the volume of water and scutellaria baicalensis accounts for 30% of the total extraction tank volume. 50-65%, heating in a 2450MHz frequency microwave field with a vacuum degree of 300-500mmHg column conditions, carry out 8-16 minutes of decompression solvent circulation microwave extraction, close the microwave extraction device after the end, collect the extraction solvent and heat it on a water bath to 70-85°C, keep warm for 20-40 minutes to make the precipitation complete, let it stand for 10-14 hours, separate the precipitate, wash with distilled water 2-3 times, and dry to obtain the crude baicalin. Compared with the existing atmospheric pressure microwave extraction method, the extraction rate of baicalin i...

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Abstract

The invention discloses a decompression micro-wave extraction device and method on the plant effective component, which is formed by a micro-wave oven, an extraction pot, a condenser, a liquid-gas separator, and a decompression device. Wherein, the micro-wave oven is arranged outside the extraction pot, while the micro-wave generators are uniformly arranged inside the micro-wave oven; the extraction pot is mounted with electric mixer, while its top is mounted with magnetic eraser; the upper part of extraction pot is a extraction chamber, the lower part is mounted with a solvent warehouse, and they are separated by a baffle plate with uniform solvent penetrate holes. Via decompression and micro-wave, the gas solvent is condensed into liquid solvent via the condenser and fed back into the solvent warehouse via the cycle tubes; the plant via micro-wave radiation is discharged via the discharge device at the lower part of extraction pot; since said invention uses decompression and solvent cycle devices, the process that extracting plant effective components is accelerated; said components will not thermal deteriorated via high temperature; and the extraction rate and quality are improved to apply the industrial production.

Description

technical field [0001] The invention relates to a device and method for extracting plant active ingredients, in particular to a vacuum microwave extraction device and method for extracting plant active ingredients. Background technique [0002] The active ingredients in plants are usually embedded in plant cell tissues, which sets up certain obstacles for extraction. The separation of active ingredients in cells first needs to be released from the cells. For the separation of macromolecules, most industries use mechanical or enzymatic methods to break the cell wall; while for the separation of small molecules, solvent extraction is mostly used. These methods generally have problems such as high extraction energy consumption, low efficiency, many impurities, low yield, and insufficient utilization of resources. [0003] Microwave extraction technology uses electromagnetic wave radiation with a frequency of 300HZ to 300GHZ to irradiate the extract, causing the polar molecule...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D11/02B01J19/12
Inventor 马烽陈明辉
Owner QILU UNIV OF TECH
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