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Method for extracting useful components from high-water-content plant raw materials

A water plant and extraction technology, which is applied in the direction of solid solvent extraction, etc., can solve problems such as labor-consuming, time-consuming, loss, and raw material loss

Inactive Publication Date: 2012-07-04
祁鲲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional method not only has a long process, is labor-intensive and time-consuming, and some raw materials are lost due to mildew and rot, but also a certain proportion of useful components in the plants will be lost during the drying process, especially many plant components are heat-sensitive or photosensitive. Easily destroyed by decomposition

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Extraction of fresh capsicum pigment: After removing seeds and grinding fresh capsicum, take 3000 kg and send it into an extractor with a pressure vessel structure. After closing the feeding channel, the pressure in the device is reduced to - 0.08Mpa, into the liquefied methyl ether extraction solvent for 8 countercurrent extractions, the extraction time is 150-200 minutes, the extraction temperature is 20°C-35°C, the extraction pressure is 0.6Mpa-0.9Mpa; during the extraction process, mechanical stirring is carried out continuously to ensure Improve extraction efficiency. The extract obtained from the extraction enters the evaporation system to vaporize the solvent and separate the extract, and then obtain the crude plant extract product with more water and capsanthin and capsaicin as useful components. After the extraction is completed, the extract in the extractor is pumped out, and the outlet valve of the extractor is opened to vaporize the solvent adsorb...

Embodiment 2

[0017] Example 2: Extraction of marigold lutein: the marigold flower treated by breaking the wall is drained and pulverized after surface moisture, and 3000 kg is taken, and sent to an extractor with a pressure vessel structure. After closing the feed channel, the air is extracted. Make the internal pressure drop to -0.08Mpa. Put in the liquefied methyl ether extraction solvent and carry out 6 countercurrent extractions, the extraction time is 120-160 minutes, the extraction temperature is 20°C-35°C, and the extraction pressure is 0.6Mpa-0.9Mpa. The extracted extract enters the evaporation system to vaporize the solvent and separate the extract to obtain a multi-water plant extract product with marigold lutein as the useful ingredient. After the extraction was completed, the solvent in the material was removed according to the conditions in Example 1, the marigold residue was discharged from the extractor, and the solvent was recovered for recycling.

Embodiment 3

[0018] Example 3: Extraction of plant alkaloids: 3000 kg of freshly picked tobacco leaves are crushed and sent to an extractor with a pressure vessel structure. After closing the feeding channel, the air is drawn out to reduce the pressure inside the device to -0.08 MPa. Pour in the liquefied methyl ether extraction solvent for 4 countercurrent extractions, the extraction time is 100-150 minutes, the extraction temperature is 20°C-35°C, and the extraction pressure is 0.6Mpa-0.9Mpa. The extract obtained by extraction enters the evaporation system to vaporize the solvent and separate the extract, so as to obtain the crude product of polyhydric plant alkaloid with nicotine as the main component. After the extraction is completed, the solvent in the material is removed according to the conditions in Example 1, the tobacco leaves are taken out from the extractor, and the solvent is recovered for recycling.

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PUM

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Abstract

The invention discloses a process for sub-critically extracting useful components from high-water-content plant raw materials. In the process, liquefied methyl ether is taken as a solvent, useful components in high-water-content plant raw materials can be extracted at the normal temperature, a process for drying, airing or manual drying plant raw materials is eliminated, partial loss of useful components of the plants in a raw material drying process is avoided, and heat-sensitive and photosensitive components in plants are particularly prevented from being damaged by decomposing. The process plays a certain role in dehydrating during extraction of useful components from plants, and has contribution to the post-treatment of plant residues. A method disclosed by the invention can be used for extracting various effective components such as plant pigments, alkaloids, plant general glycosides and the like, and is particularly suitable for extracting processing of capsochrome, marigold phytoxanthin, nicotiana alkaloids, ginseng general glycosides and the like.

Description

technical field [0001] The invention relates to a method for extracting useful components of high-water-containing plant raw materials by using an organic solvent with certain water absorption, partially removing moisture in the raw material, making the extracted material appear dry, and facilitating the discharge of plant slag during the process storage and reuse. Background technique [0002] Roots, stems, and leaves of plants contain various components useful to humans. In order to extract these components, they are generally sun-dried, air-dried or artificially dried to remove most of the water before extraction. This traditional method not only has a long process, is labor-intensive and time-consuming, and some raw materials are lost due to mildew and rot, but also a certain proportion of useful components in the plants will be lost during the drying process, especially many plant components are heat-sensitive or photosensitive. Easily destroyed by decomposition. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02
Inventor 祁鲲
Owner 祁鲲
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