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A method for extracting and separating eucommia gum from the feces of eucommia ulmoides larvae

A technology for Eucommia eucommia and Spodoptera eucommia, which is applied in the field of extraction and separation of natural product eucommia gum, can solve the problems of serious environmental pollution, serious structural changes of eucommia gum, long fermentation period, etc., so as to reduce costs and promote diversification. The effect of development and reduction of extraction costs

Active Publication Date: 2022-06-14
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of this method is high, the output rate of Eucommia gum is low, the consumption of organic solvent is large, and the environmental pollution is serious.
And the enzymatic hydrolysis method (Chinese patent: CN201210307947.8) discloses, utilizes the compound enzyme of cellulase, pectinase and protease to degrade the cellulose of cell wall, thereby makes Eucommia gum easy to separate out, and shortcoming is that fermentation cycle is long, and cost is high, During the long fermentation process, the structure of Eucommia gum changes seriously, and the content of impurities is high, which seriously affects its subsequent utilization.
[0005] Through the above analysis, the problems and defects in the prior art are: (1) raw materials such as mechanically pulverized eucommia leaves are leached with organic solvents, the consumption of organic solvents is large, serious environmental pollution, and the output rate of eucommia gums is low
(2) Treating Eucommia ulmoides raw materials with enzymes to degrade the cell wall, although it can increase the output rate of eucommia gum, but it takes a long time, high cost, easy to change the structure of eucommia gum, and contains more impurities

Method used

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  • A method for extracting and separating eucommia gum from the feces of eucommia ulmoides larvae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Pre-treatment steps: place the larval excrement of Eucommia ulmoides larvae in a cool and ventilated place to dry after removing impurities; mechanically crush the dried larvae of Eucommia ulmoides larvae to a particle size of 40 mesh, place Store in a dry and cool place in vacuum.

[0040] (2) Water bath treatment step: add distilled water to the eucommia ulmoides larvae treated in step (1) fully according to the ratio of solid to liquid 1:10, and use a stirrer under the condition of rotating speed 300r / min and 50°C Heated in a water bath for 2h.

[0041](3) Decolorization: After drying the filter residue separated in step (2), mix it with acetone according to the ratio of solid to liquid 1:10, condense and extract at 70°C for 4 hours, and after hot filtration, put the filter residue drying in a ventilated drying oven; the filtrate separated in step (2) is filtered to remove impurities to obtain biologically active components;

[0042] The finished bioactive comp...

Embodiment 2

[0045] (1) Pre-treatment step: the larvae dung of Eucommia ulmoides, after removing impurities, is placed in a cool and ventilated place to dry; the dried larvae of Eucommia ulmoides is mechanically crushed to a particle size of 60 mesh, and placed Store in a dry and cool place in vacuum.

[0046] (2) Water bath treatment step: add distilled water to the Eucommia ulmoides larvae treated in step (1) fully according to the ratio of solid to liquid 1:15, and use a stirrer under the condition of rotating speed 200r / min and 40°C Heated in a water bath for 2h.

[0047] (3) Decolorization: After drying the filter residue separated in step (2), mix it with acetone according to the ratio of solid to liquid 1:15, condense and extract at 70°C for 3 hours, and after hot filtration, put the filter residue drying in a ventilated drying oven; the filtrate separated in step (2) is filtered to remove impurities to obtain biologically active components.

[0048] The finished bioactive ingredi...

Embodiment 3

[0051] (1) Pre-treatment steps: the larvae dung of Eucommia ulmoides, after removal of impurities, is placed in a cool and ventilated place to dry; the dried larvae of Eucommia ulmoides is mechanically crushed to a particle size of 100 mesh, and placed Store in a dry and cool place in vacuum.

[0052] (2) Water bath treatment step: add distilled water to the Eucommia ulmoides larvae treated in step (1) fully according to the ratio of solid to liquid 1:20, and use a stirrer under the condition of rotating speed 300r / min and 50°C Heat in a water bath for 1h.

[0053] (3) Decolorization: After drying the filter residue separated in step (2), mix it with acetone according to the ratio of solid to liquid 1:20, condense and extract at 70°C for 4 hours, and after hot filtration, put the filter residue drying in a ventilated drying oven; the filtrate separated in step (2) is filtered to remove impurities to obtain biologically active components;

[0054] The finished bioactive ingre...

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Abstract

The invention belongs to the technical field of extraction and separation of eucommia gum, a natural product, and discloses a method for extracting and separating eucommia gum from eucommia ulmoides larvae feces. Put it in a dry and cool place to dry; mechanically pulverize the dried feces of eucommia ulmoides larvae, and dry in vacuum; put the processed raw materials in a blender, and heat them in a water bath; dry the separated filter residue, and use Decolorize with acetone, filter, and dry; remove impurities to obtain bioactive components; mix the dried filter residue with petroleum ether, reflux extraction, filter to remove impurities, and precipitate to obtain Eucommia Gum. The invention has few extraction process steps, convenient operation, and short extraction and separation time; the obtained extract has high purity, and the precipitated eucommia gum has good color, which effectively reduces the cost in the development process of eucommia gum, and realizes the eucommia ulmoides larva The efficient utilization of Eucommia has promoted the diversified development of Eucommia industry.

Description

technical field [0001] The invention belongs to the technical field of extraction and separation of eucommia gum, a natural product, and in particular relates to a method for extracting and separating eucommia gum from excrement of eucommia ulmoides larvae. Background technique [0002] At present, Eucommia ulmoides Oliver is a plant of Eucommia genus Eucommia (Eucommiaceae) and is a deciduous tree of a single family. Eucommia ulmoides is rich in flavonoids, phenylpropanoids, lignans, iridoids and other secondary metabolites that have the functions of anti-oxidation, lowering blood pressure, lowering blood sugar, and enhancing immunity. It is a unique and precious medicinal plant . In addition to being used for medicine, Eucommia ulmoides can also be extracted from Eucommia ulmoides, a natural polymer compound. Eucommia ulmoides gum has excellent properties such as shape memory, low-temperature plasticity, corrosion resistance, wear resistance, sound insulation, and shock a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08J3/00
CPCC08J3/00C08J2307/00
Inventor 贺虹朱铭强邱娜王君洁荣雨柔
Owner NORTHWEST A & F UNIV
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