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Preparation process of gutta alcohol

A technology of eucommia ulmoides alcohol and ulmoides bark, which is applied in the field of traditional Chinese medicine extraction, can solve the problems of difficult industrial production, high raw material prices, and complicated processes, and achieve the effect of easy industrial production and simple methods

Inactive Publication Date: 2004-11-17
车庆明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The used raw material price of this method is high, and technology is also more complicated, is difficult to industrialized production (M.Hattor, Q.M.CHE, et al, Shoyakugakuzasshi, 42 (1): 76-80, 1988)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] In this example, Eucommia ulmoides alcohol is prepared from leaves of Eucommia ulmoides. Specific preparation process:

[0016] Eucommia ulmoides leaves 1 kg, heated 15 times with water at 85°C, extracted 4 times, 2 hours each time, filtered, concentrated to extract, separated with D101 macroporous resin column, eluted with 3 liters of water, collected in 300ml portions , detected by TLC method, CHCL 3 -CH 3 OH-H 2 O (70:30:5) was used as the developer until the Rf value was 0.5, and the pink parts were combined after color development with 10% sulfuric acid, separated by silica gel column after concentration, and separated with 5%, 10% CH 3 OH-CHCL 3 The solution was eluted sequentially, collecting 10% CH 3 OH-CHCl 3 The eluted part was concentrated to obtain a colorless oily substance (eucommia alcohol).

example 2

[0018] In this example, Eucommia ulmoides alcohol is extracted from bark of Eucommia ulmoides. Specific preparation process:

[0019] 1 kg of Eucommia bark, heated 6 times with water at 95°C and extracted twice, each time for 2 hours, filtered, concentrated to 1 liter, extracted 3 times with the same amount of ethyl acetate, and the water-soluble part was further concentrated to about 0.2 liters, and used D101 Macroporous resin column for separation, 3 liters of water for elution, each 300ml is collected as a portion, and detected by TLC method, CHCl 3 -CH 3 OH-H 2 O (70:30:5) was used as the developer, and the Rf value was 0.5, and the pink parts were combined after color development with 10% sulfuric acid, concentrated and separated by silica gel column, and then separated with 5%, 10% CHCl 3 -CH 3 OH, the solution elutes sequentially, collecting 10% CH 3 OH-CHCl 3 The eluted part was concentrated to obtain a colorless oily substance (eucommia alcohol).

example 3

[0021] This example is the normal temperature impregnation method, the specific preparation process:

[0022] One kilogram of eucommia bark, soaked in 10 times of water at room temperature and extracted twice, 24 hours each time, filtered, concentrated to extract, separated with D101 macroporous resin column, eluted with 3 liters of water, collected in portions of 300ml, and used TLC method for detection, CHCl 3 -CH 3 OH-H 2 O (70:30:5) is the developer. The Rf value is 0.5, and the pink parts after 10% sulfuric acid color development are combined, concentrated and separated with a silica gel column, and separated with 5%, 10% CH 3 OH-CHCl 3 The solution was eluted sequentially, collecting 10% CH 3 OH-CHCl 3 The eluted part was concentrated to obtain a colorless oily substance (eucommia alcohol).

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PUM

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Abstract

The present invention features that the water or alcohol extraction of gutta leaf or bark. The extraction process includes heating extraction, normal temperature soaking, filtering of extractive liquid, concentration, separation, and other steps. The processor is simple and practical and can obtain oily product with gutta alcohol content over 98%.

Description

technical field [0001] The invention belongs to the extraction technology of traditional Chinese medicine, and more specifically relates to a method for extracting eucommia alcohol from eucommia ulmoides leaves or bark of eucommia ulmoides. Background technique [0002] Eucommia ulmoides bark is the dry bark of Eucommia ulmoides Oliv., and Eucommia ulmoides leaves are the dried leaves of the plant. [0003] Eucommia bark contains iridoids, lignans, neolignans and phenolic compounds, etc., literature survey shows [T.Deyama et al, Chem.Pharm.Bull.31 (9), 2993-2997 (1983); T. Deyama etl, Chem. Pharm. Bull. 3199), 3651-3657 (1985); T. Deyama et al, Chem. Pharm. Bull. 34 (2), 523-527 (1986); T. Deyama et al, Chem. Pharm .Bull.34(12), 4993-4938(1986); T.Deyamaetal, Chem.Pharm.Bull.35(5), 1785-1789(1987); T.Deyamaetal, Chem.Pharm.Bull.35(5 ), 1803-1807 (1987)], there are currently 22 kinds of lignans and neolignans, 10 kinds of iridoids, 2 kinds of flavonoids and several phenolic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C37/68
Inventor 车庆明
Owner 车庆明
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