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Comprehensive utilization method for eucommia bark

A technology of eucommia bark and leaching is applied in the field of comprehensive utilization of eucommia bark, which can solve the problems of lack of comprehensive utilization, single product, and inability to effectively utilize resources, etc., and achieves the effects of solving high production cost, reducing product cost and easy technology.

Inactive Publication Date: 2014-02-19
安康市志朗生物资源应用研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The main problem of extracting Eucommia gum with Eucommia bark as raw material is that the production cost remains high, which seriously restricts the industrialization of Eucommia bark as raw material for the production of Eucommia gum, and can not effectively utilize resources. The key problem is that the existing process The products produced are single and there is no comprehensive utilization
After searching, there is no method for comprehensive utilization of Eucommia bark with Eucommia bark as raw material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Take 1 kg of eucommia bark raw material, crush the ulmoides bark and decoct it twice with water, add 6 liters of water to immerse the crushed ulmoides bark for the first time, heat to 100°C, decoct for 2 hours, and collect the water extract; add 5 liters of water for the second time Submerge the crushed bark of Eucommia ulmoides, heat to 100°C, decoct for 2 hours, and collect the water extract; combine the two water extracts and place the liquid at room temperature, then absorb the water extract on a neutral macroporous resin adsorption column, The water extract was added to the resin column and desorbed with 30% ethanol. The water extract was concentrated, dried and desorbed to obtain 54 grams of extracted dry powder. The content of pinoresinol diglucoside was 8.7% as detected by HPLC.

[0013] The ulmoides bark dregs after the water extraction are dehydrated, put into a circular extractor, and are extracted 6 hours with 8 liters of 120# solvent oil circulation, and the...

Embodiment 2

[0015] Take 1 kg of Eucommia bark raw material, crush the bark of Eucommia ulmoides and decoct it twice with water, add 6 liters of water for the first time to immerse the crushed bark of Eucommia ulmoides, heat to 60°C, soak for 240 minutes, collect the water extract; add 5 liters of water for the second time Submerge the pulverized bark of Eucommia ulmoides, heat to 60°C, soak for 240 minutes, collect the water extract; combine the two water extracts and place the liquid at room temperature, then absorb the water extract on a polar macroporous resin adsorption column, The water extract was added to the resin column and desorbed with 70% ethanol. The water extract was concentrated, dried and desorbed to obtain 47 grams of extracted dry powder. The content of pinoresinol diglucoside was 6.7% as detected by HPLC.

[0016] The ulmoides bark dregs after the water extraction were dehydrated, put into a circular extractor, and were extracted with 8 liters of toluene for 6 hours, and...

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Abstract

The invention specifically relates to a comprehensive utilization method for eucommia bark, which belongs to extraction methods for effective ingredients of plants. The comprehensive utilization method for the eucommia bark improves the utilization rate of raw materials and reduces production cost. The method comprises the following steps: with the eucommia bark as a raw material, crushing the eucommia bark, adding water for extraction and then carrying out solid-liquid separation; feeding a separated liquid into a macroporous resin adsorption column, carrying out desorption by using ethanol and subjecting a desorption solution to concentration and drying so as to obtain dry powder containing pinoresinol diglucoside; and cyclically extracting a separated solid with No. 120 solvent naphtha or toluene, removing impurities by using ethyl acetate until a solvent is colorless and carrying out air drying so as to obtain refined gutta-percha. According to the invention, pinoresinol diglucoside soluble in water and gutta-percha insoluble in water are extracted, so product cost is greatly reduced.

Description

Technical field [0001] The invention belongs to a method for extracting effective components of plants, in particular to a method for comprehensive utilization of eucommia bark. Background technique [0002] The main problem of extracting Eucommia gum with Eucommia bark as raw material is that the production cost remains high, which seriously restricts the industrialization of Eucommia bark as raw material for the production of Eucommia gum, and can not effectively utilize resources. The key problem is that the existing process The products produced are single and there is no comprehensive utilization. After retrieval, there is no method for comprehensive utilization of bark of Eucommia taking Eucommia bark as raw material. Contents of the invention [0003] The technical problem to be solved by the invention is to propose a method for comprehensive utilization of bark of Eucommia which improves raw material utilization and reduces production cost. [0004] The technical...

Claims

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Application Information

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IPC IPC(8): C08J3/00C08L7/00C07H15/26C07H1/08
Inventor 胡子朗南怀炼
Owner 安康市志朗生物资源应用研究所
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