CN1263833C - Method for extracting eucommia ulmoides seed oil - Google Patents
Method for extracting eucommia ulmoides seed oil Download PDFInfo
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- CN1263833C CN1263833C CN 200410058317 CN200410058317A CN1263833C CN 1263833 C CN1263833 C CN 1263833C CN 200410058317 CN200410058317 CN 200410058317 CN 200410058317 A CN200410058317 A CN 200410058317A CN 1263833 C CN1263833 C CN 1263833C
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- eucommia
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Abstract
The present invention provides an extraction method for eucommia bark seed oil and a prepared eucommia bark seed oil thereof. The method comprises the following steps in sequence: firstly, the raw materials of eucommia bark seeds are pulverized, and acetone is added to the pulverized raw materials for impregnating; the mixture obtained by impregnating is filtrated, and a partial solvent is removed; secondly, the mixed solvent of a commercial NO. 6 solvent oil and ethyl ether or the mixed solvent of hexane and ethyl ether is added, and the mixture containing a certain mixed solvent is filtrated and desolventized to obtain refined crude oil; then the refined crude oil is decolorized and then desolventized after a decoloring agent is removed, namely that refined oil is obtained. According to the method of the present invention, the original process step of shelling can be left out; production efficiency can be increased, and scale industrial production can be realized; moreover, the oil yield of the total fruit can reach as high as 10% by using the method; factices are also convenient to separate, thereby being favorable to the reutilization of gutta percha.
Description
Technical field
The present invention relates to a kind of extracting method and thus obtained eucommia ulmoides seed oil of eucommia ulmoides seed oil, relate in particular to a kind of method and thus obtained eucommia ulmoides seed oil that extracts eucommia ulmoides seed oil by impregnation method.
Background technology
The bark of eucommia is the distinctive medicinal xylophyta of China, and the oleaginousness of bark of eucommia seed is about about 10%, is rich in the necessary alpha-linolenic acid of human body, linolic acid in the eucommia ulmoides seed oil, is a kind of nutritious functional health edible oil therefore.
Existing eucommia ulmoides seed oil extracting method mainly comprises following two kinds:
First kind: bark of eucommia seed is passed through pre-treatment, peels off, squeezes.Its defective is: the hulling rate in the operation of peeling off is low, is difficult to usually surpass 85%, causes the oil yield of Eucommia Oil low, and therefore, the production efficiency of this method is low, and cost is higher, is unsuitable for suitability for industrialized production.It is documented that under manual situation of peeling off, the full fruit oil yield of bark of eucommia seed is about 10%, and under the situation of mechanical descaling, the full fruit oil yield of bark of eucommia seed only is 6～7%.
Second kind: direct leaching: the conventional solvent that is main component with the normal hexane with the back employing of bark of eucommia seed pulverizing floods.Its defective is: adopt in the greasy process of above-mentioned conventional solvent extraction, gutta-percha also simultaneously is extracted out, becomes the factice mixture, and follow-up separating step is caused difficulty, and then influences the quality product of eucommia ulmoides seed oil.
Summary of the invention
The object of the present invention is to provide a kind of method of extracting eucommia ulmoides seed oil, this method not only can realize large-scale industrial production, and can effectively improve the oil yield of eucommia ulmoides seed oil.
Another object of the present invention is to provide a kind of eucommia ulmoides seed oil that obtains that extracts according to aforesaid method.
The extracting method of eucommia ulmoides seed oil of the present invention may further comprise the steps successively:
A) bark of eucommia seed raw material is pulverized;
B) adding acetone in pulverized bark of eucommia seed floods;
C) mixture that obtains through dipping in the step b) is filtered and slough partial solvent, obtain containing the crude oil crude product of acetone;
D) in the crude oil crude product that contains acetone that step c) obtains, add commercially available No. 6 solvent oils and the mixed solvent of ether or the mixed solvent of normal hexane and ether, after filtration, desolventizing, obtain making with extra care crude oil;
E) the refining crude oil that obtains in the step d) processing of decolouring;
F) remove discoloring agent in the decolorizing and refining crude oil, and carry out degree of depth desolventizing and handle, obtain refining oil.
In described step a), bark of eucommia seed raw material wherein can be the bark of eucommia benevolence that obtains after the whole seed shelling of the whole seed of the bark of eucommia, the bark of eucommia or the bark of eucommia benevolence dregs of rice after the whole seed shelling of the bark of eucommia squeezing.When adopting whole seed to pulverize the back dipping, can enhance productivity; When flooding after adopting the shelling of bark of eucommia seed to pulverize, the linolenic acid content of oil product is higher again; When the dregs of rice after adopting bark of eucommia seed shelling squeezing flood, can improve the rate of recovery of eucommia ulmoides seed oil.
In described step a), preferably bark of eucommia seed raw material is crushed to 40～60 orders;
In described step b), the preferable range of acetone and material's proportion (grams per milliliter) is 1:2.2～2.5, and its preferred value is 1: 2.4.
In the mixed solvent of described step d), the preferable range of the mixed weight ratio of commercially available No. 6 solvent oils and ether, normal hexane and ether is 4: 1 to 12: 1, and its preferred value is 9: 1.Described mixed solvent is used for separating the impurity and the gutta-percha of crude oil crude product.
In the step e) of the method for the invention, described decolouring is handled and can be selected conventional fat decolourizing agent for use, in a preferred embodiment of the invention, adopts carclazyte to decolour, and the preferable range of its add-on is with respect to treating 3～5% of bleached oil weight.
The method according to this invention is extracted in the eucommia ulmoides seed oil obtain, contains weight percentage usually and be 50%～62%, preferred 52.2% linolenic acid.
The present invention compared with prior art has the following advantages:
1. because method of the present invention to the directly broken back leaching of bark of eucommia seed raw material, has been saved original operation of peeling off, can enhance productivity greatly, reduce production costs, be particularly suitable for the industrial production of mass-producing.
2. the oil yield of the eucommia ulmoides seed oil that extracts by method of the present invention is higher, and its full fruit oil yield can be up to 10%.
3. because method of the present invention adopts acetone to flood, and in subsequent step, adopt No. 6 commercially available solvent oils to handle, make factice be easy to separation, can guarantee the quality product of refining oil with the mixed solvent of ether or the mixed solvent of normal hexane and ether.In addition, do not need very high temperature in the whole leaching process, the gelationus performance is not had disadvantageous effect, therefore, the filter residue that leaching process obtains can reclaim again and be used to extract gutta-percha, compares with abandoning the residue thing in the traditional extraction process, and the extraction that can be gutta-percha is provided convenience.
Embodiment
Embodiment
Below with reference to embodiment the present invention is described in further detail.
The extracting method of the eucommia ulmoides seed oil in the present embodiment may further comprise the steps:
A). pulverize:
Adopt pulverizer that bark of eucommia seed raw material is crushed to about 50 orders, adopt the bark of eucommia seed of band shell directly to pulverize in the present embodiment.
B). leach:
Adding acetone in pulverized bark of eucommia seed floods, wherein the ratio of material and acetone (grams per milliliter) is 1: 2.4, be divided into three extractions, flooded 2 hours for the first time, flooded 2 hours for the second time, flooded for the third time 4 hours, dipping temperature remains on 40～48 ℃, compiles three times and floods the mixture that obtains.
C). the preparation of crude oil crude product:
The mixture that obtains through dipping in the step b) is filtered, at first adopt the filter screen coarse filtration, use filter paper filtering again, under 60～65 ℃, distill then, vacuum tightness in the still-process is-3000pa that 40～60% solvent is removed in distillation, obtains containing the crude oil crude product of acetone after the distillation.
D). making with extra care of crude oil crude product:
At normal temperatures, add commercially available, No. 6 solvent oils producing by Luoyang Petrochemical and the mixed solvent of ether in the crude oil crude product that contains acetone that step c) obtains, both blended weight ratios are 9: 1, the add-on of mixed solvent is 2 times of weight of material, after this mixed solvent fully dissolves crude oil, adopt filter paper filtering, and wash 2～3 times; Distill once more then, remove whole solvents wherein, distillation temperature is 40～60 ℃, and vacuum tightness is-3000pa to obtain refining crude oil thus.
E). the decolouring of refining crude oil is handled:
The refining crude oil that obtains in step d) adds processings of decolouring of commercially available technical grade carclazyte, its add-on be with respect to oil heavy 3～5%, 90 ℃ times maintenances 15～20 minutes, vacuum tightness was-3000pa.
F). the refining of decolorizing and refining crude oil:
Carry out the processing of degree of depth desolventizing after removing the discoloring agent in the decolorizing and refining crude oil that obtains in the step e) after filtration, wherein the desolventizing temperature is 125 ℃, and vacuum tightness is-5000pa so that thoroughly slough residual solvent, finally to obtain refining oil.
The lipid acid of pressing in the eucommia ulmoides seed oil that the extracting method of present embodiment obtains is formed as shown in table 1:
Main fatty acid component in table 1 bark of eucommia seed refining oil
| The lipid acid title | Bark of eucommia seed refining oil (%) |
| Palmitinic acid | 7.1 |
| Stearic acid | 2.2 |
| Oleic acid | 18.5 |
| Linolic acid | 13.0 |
| Linolenic acid | 52.2 |
According to the data in the table 1 as can be known, the linolenic acid content in the eucommia ulmoides seed oil is up to 52.2%.In addition, by conversion as can be known, the full fruit oil yield of the eucommia ulmoides seed oil in the present embodiment is compared with machine press for extracting juice method of the prior art up to 10%, and its oil yield improves greatly, has further reduced production cost.
Claims (7)
1. method of extracting eucommia ulmoides seed oil may further comprise the steps successively:
A) bark of eucommia seed raw material is crushed to 40～60 orders;
B) add acetone in pulverized bark of eucommia seed and flood, the ratio of material/acetone (grams per milliliter) scope is 1: 2.2～2.5, and dipping temperature remains on 40～48 ℃;
C) mixture that obtains through dipping in the step b) is filtered and sloughs 40～60% solvent solvent, obtain containing the crude oil crude product of acetone;
D) in the crude oil crude product that contains acetone that step c) obtains, add commercially available No. 6 solvent oils and the mixed solvent of ether or the mixed solvent of normal hexane and ether, desolventizing after filtration,, obtain refining crude oil, wherein, commercially available No. 6 solvent oils and ether or normal hexane are 4: 1 to 12: 1 with the mixed weight of ether than scope;
E) the refining crude oil that obtains in the step d) processing of decolouring;
F) remove discoloring agent in the decolorizing and refining crude oil, and carry out degree of depth desolventizing and handle, obtain refining oil.
2. method according to claim 1 is characterized in that: in described step a), bark of eucommia seed raw material is selected from the bark of eucommia benevolence that obtains after the whole seed of the bark of eucommia, the whole seed shelling of the bark of eucommia or in the bark of eucommia seed dregs of rice after the whole seed shelling of the bark of eucommia squeezing one or more.
3. extracting method according to claim 1 is characterized in that: in described step d), commercially available No. 6 solvent oils and ether blended weight ratio in the mixed solvent are 9: 1.
4. extracting method according to claim 1 is characterized in that: in described step d), normal hexane in the mixed solvent and ether blended weight ratio are 9: 1.
5. according to the eucommia ulmoides seed oil of any one described extracting method preparation in the claim 1 to 4.
6. eucommia ulmoides seed oil according to claim 5 is characterized in that: contain weight percentage and be 50%～62% linolenic acid.
7. eucommia ulmoides seed oil according to claim 6 is characterized in that: contain weight percentage and be 52.2% linolenic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410058317 CN1263833C (en) | 2004-08-10 | 2004-08-10 | Method for extracting eucommia ulmoides seed oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410058317 CN1263833C (en) | 2004-08-10 | 2004-08-10 | Method for extracting eucommia ulmoides seed oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1587360A CN1587360A (en) | 2005-03-02 |
| CN1263833C true CN1263833C (en) | 2006-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410058317 Expired - Fee Related CN1263833C (en) | 2004-08-10 | 2004-08-10 | Method for extracting eucommia ulmoides seed oil |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146472A (en) * | 2011-12-06 | 2013-06-12 | 汉中永杨医药科技发展有限公司 | Method for preparing eucommia seed oil by low-temperature cold-pressing technology |
| CN102604733A (en) * | 2012-03-13 | 2012-07-25 | 玛纳斯恒泰实业有限公司 | Extraction method of functional healthcare edible oil |
| CN103113983B (en) * | 2013-01-25 | 2014-10-22 | 灵宝金地杜仲产业有限公司 | Eucommia seed oil refining technology |
| CN104012679B (en) * | 2013-03-29 | 2015-11-18 | 洛阳春魁农业开发有限公司 | A kind of peony seeds ready-mixed oil containing eucommia ulmoides seed oil and preparation method thereof |
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