Method for continuously extracting eucommia oil and aucuboside from eucommia seed

A technology of aucubin and Eucommia oil, which is applied in the direction of fat oil/fat production and fat production, can solve the problems of residual solvents in oil products, low product yield, turbid oil color, etc., and achieves the improvement of comprehensive utilization rate and extraction The method is simple and the effect of increasing economic value

Inactive Publication Date: 2005-11-16
张康健 +2
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Problems solved by technology

At present, the method for obtaining eucommia oil in this field has been using the traditional extraction method, and there are defects such as residual solvent in the oil, turbid oil color, poor quality, low product yield, especially low linolenic acid content, etc.
In addition, the dregs of Eucommia ulmoides oil are also rich in aucubin, which is an important raw material for making health care products and medicines. It has various functions such as antibacterial and anti-inflammatory, but so far it has not been seen The report on the process of extracting aucubin from the dregs of Eucommia oil has caused this part of useful resources to be wasted in vain, reducing the economic value of Eucommia seeds

Method used

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Examples

Experimental program
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Embodiment Construction

[0008] 1. Extraction of high linolenic acid Eucommia oil

[0009] Pass the shelled and pulverized eucommia kernel powder through a 30-mesh sieve, dry the sieved powder at 60-90°C, and then use high-purity supercritical pure CO with a pressure value of 35Mpa and a flow rate of 2500ml / min at a temperature of 80°C. 2 After extracting for 2 hours, the extract is decompressed and separated on a separation column to obtain light yellow and clear eucommia oil, the yield of eucommia oil is 20%-30%, and the content of linolenic acid is 60%-65%.

[0010] 2. Extraction of aucubin

[0011] Extract 20 kg of eucommia oil dregs with water, 20% to 80% methanol or ethanol for 3 times at a temperature of 50 to 90° C., concentrate the extract under reduced pressure to 1 / 5 of the volume of the extract, and pass the concentrated solution through Activated carbon is decolorized for 40 minutes and separated on a macroporous resin (such as D4020, D201, s-8, etc.) The yield of phyllobulin is 0.6% to...

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Abstract

The present invention relates to a method for continuously extracting biological active component by using eucommia seed as raw material, including (A). utilizing supercritical pure CO2 or high-purity CO2 to extract high linolenic acid eucommia oil from eucommia kernel dried powder; and (B). using water, methyl alcohol or ethyl alcohol as extracting agent, and adopting the processes of heating extraction, reduced pressure concentration, macroporous resin separation and column chromatography to extract aucuboside from residual cake in which the eucommia oil is extracted. Said invention is simple in process, low in cost, high in product yield and good in quality.

Description

technical field [0001] The content of the invention belongs to the technical field of preparation of biochemical articles, and relates to a method for extracting health care and medical active ingredients from Eucommia ulmoides seeds. Background technique [0002] Eucommia ulmoides (Eucommia ulmoides) is a kind of precious medicinal material distributed in the west to the middle of my country. Its bark has always been used as medicine in traditional Chinese medicine. Eucommia ulmoides seeds (kernels) are rich in linolenic acid oil. The unsaturated fatty acid content in this linolenic oil is extremely high, reaching 91%, of which the fatty acids (linoleic acid and linolenic acid) necessary for the human body reach 73%. %, and what is more prominent is that its linolenic acid content is as high as 61%, which is unmatched by other oils. Linolenic acid can be metabolized into eicosapentaenoic acid (EPA) in the human body, and then metabolized into docosahexaenoic acid (DHA). A ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/10
Inventor 马柏林张康健王蓝梁淑芳董娟娥
Owner 张康健
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