Method for extracting ursolic acid and oleanolic acid mixture from glossy privet fruit

A technology of oleanolic acid and ursolic acid, applied in the direction of steroids, organic chemistry, etc., to achieve the effect of less energy consumption, lower cost, and higher extraction rate

Inactive Publication Date: 2015-02-25
HUAIYIN TEACHERS COLLEGE
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  • Claims
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Problems solved by technology

It can be seen that this method only extracts free ursolic acid and oleanolic acid, but does not extract ursolic acid and oleanolic acid that exist in the form of sugar ligands in Ligustrum lucidum fruit, so when there is subsequent ethanol extraction, Glycosidic Ursolic and Oleanolic Acids Difficult to Extract from Plant Cells

Method used

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  • Method for extracting ursolic acid and oleanolic acid mixture from glossy privet fruit
  • Method for extracting ursolic acid and oleanolic acid mixture from glossy privet fruit
  • Method for extracting ursolic acid and oleanolic acid mixture from glossy privet fruit

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Embodiment Construction

[0032] Embodiment is given below, and the present invention is further elaborated:

[0033] (1) The process route implementation step one of the present invention "processing Ligustrum lucidum material" is based on the attached figure 1 , 2 , the technological process, and attached Figure 4 Relevant examples given by the test detection:

[0034] (1) Take 2.0kg of mature Ligustrum lucidum, wash it with clean water, and use 0.3% H 2 SO 4 After cooking in the solution for 30 minutes, filter, and the obtained Ligustrum lucidum slag is further ground until the Ligustrum lucidum pulp and the core are separated, then transferred to water, and constantly stirred to make the pulp and the core float on the surface, and immediately take it with a basket sieve The pulp with a slow sedimentation rate is taken out, and the operation is repeated many times to obtain the Ligustrum lucidum pulp and the core isolate, and further the Ligustrum lucidum pulp is dried under freeze-drying cond...

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Abstract

The invention provides a method for extracting an ursolic acid and oleanolic acid mixture from glossy privet fruit. The method comprises the following steps: firstly hydrolyzing ursolic acid and oleanolic acid, which exist in sugar ligands, in glossy privet fruit into free state by adopting acid hydrolysis technology so as to preferentially separate extraction materials rich in ursolic acid and oleanolic acid, and then removing fat-soluble organic compounds from the materials with petroleum ether; then by adopting alkaline ethanol mixed solvent, performing ultrasonic extraction, washing and ethanol dissolution and the like, to obtain a target product. The overall treatment amount is reduced; the impurities in ursolic acid and oleanolic acid extracted through mixed solvent can be decreased; free-state ursolic acid and oleanolic acid are converted into sodium salts, more easily entering the extraction solvent, through the used mixed extraction solvent; cells can be broken through ultrasonic extraction, and the capability of separating ursolic acid and oleanolic acid from plant cells and entering the extraction solvent can be enhanced. Therefore, through the technology, the extraction of ursolic acid and oleanolic acid in the glossy privet fruit can be improved, the usage amount of the extraction solvent can be greatly reduced, the energy consumption is less, and the cost for preparing the target product can be obviously lowered.

Description

technical field [0001] The invention relates to a technology for extracting biomass with medicinal value from fruits, in particular to a method for extracting a mixture of ursolic acid and oleanolic acid from Ligustrum lucidum. Background of the invention : [0002] Ligustrum lucidum is the dry and mature fruit of Ligustri Lucidum, an evergreen tree of the Osmanthus family, oval in shape, grayish-brown or purple-black in surface, thin exocarp, woody endocarp, yellow-brown, with longitudinal ribs, October-November Mature. It is cool in nature, sweet in taste, slightly bitter, and returns to the liver and kidney meridian. It has the functions of nourishing the liver and kidney, improving eyesight and black hair. It is mainly used for dizziness, tinnitus, thin and soft waist and knees, premature graying of beard and hair, and blurred vision in traditional Chinese medicine. . Ligustrum fruit is rich in ursolic acid and oleanolic acid. [0003] The ursolic acid (Ursolic acid)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J63/00
CPCC07J63/008
Inventor 吕金顺刘晓燕徐继明吴真许家兴吕培林
Owner HUAIYIN TEACHERS COLLEGE
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