CN104744220A - Method for preparing hydroxytyrosol by transforming oleuropein by use of ion exchange resin - Google Patents
Method for preparing hydroxytyrosol by transforming oleuropein by use of ion exchange resin Download PDFInfo
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- CN104744220A CN104744220A CN201510067619.9A CN201510067619A CN104744220A CN 104744220 A CN104744220 A CN 104744220A CN 201510067619 A CN201510067619 A CN 201510067619A CN 104744220 A CN104744220 A CN 104744220A
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- hydroxytyrosol
- oleuropein
- exchange resin
- ion exchange
- ethanolic soln
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/001—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by modification in a side chain
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/004—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by obtaining phenols from plant material or from animal material
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- Medicines Containing Plant Substances (AREA)
Abstract
The invention discloses a method for preparing hydroxytyrosol by transforming oleuropein by use of an ion exchange resin. The method comprises the following steps: by taking a plant extract as a raw material, adopting macroporous resin for adsorption and separation, enriching the oleuropein part in the plant extract by virtue of column chromatography on silica gel, and then hydrolyzing and transforming the oleuropein into the hydroxytyrosol by use of strong acidic SO3<-> ion-exchange resin, collecting a column passing effluent and an eluate, blending and then concentrating to recover ethanol, thereby obtaining a high-concentration hydroxytyrosol extract. According to the method, the ion exchange resin is reusable, and the reaction conditions are mild and the stability is good; the used solvent is safe and nontoxic; the hydrolysis transformation rate is above 90%, and the problems of acid pollution, difficult separation and the like in hydrochloric acid hydrolysis are avoided; and in short, the method has a good application prospect and suitable for large-scale industrial production.
Description
Technical field
The present invention relates to field of natural product chemistry, be specifically related to a kind of method being prepared Hydroxytyrosol by ion exchange resin conversion Oleuropein.
Background technology
Hydroxytyrosol (hydroxytyrosol) chemistry Hydroxytyrosol by name, have another name called hydration tyrosine, 4-(2-hydroxyethyl)-1,2-dihydroxy-benzene, be a kind of natural polyphenolic compound, its molecular structure is as follows:
Derive from Olive leaf P.E at first, be mainly present in each position of olive with the form of carboxylate Oleuropein, Oleuropein can obtain the Hydroxytyrosol dissociated after hydrolysis.It is active that research finds that Hydroxytyrosol has the bio-pharmacology being much of value to HUMAN HEALTH, dark in attention that is biological and medical circle in recent years.The preparation of Hydroxytyrosol and chemosynthesis are the focuses that Pharmaceutical Chemist is studied recently.
Hydroxytyrosol has been proved has multiple antioxidation activity in vitro, and it can remove hydrogen peroxide, hydroxyl and other free radical and active nitrogen free radical, superoxide anion, and blocks peroxidation chain reaction, suppresses the metal ion catalysis product generation etc. of ROS.Hydroxytyrosol phenyl ring being connected with two hydroxyls, is its main anti-oxidant activity group.Hydroxytyrosol because of its intrinsic anti-oxidant activity can the generation of prevention of various diseases, as cancer, cardiovascular disorder, nerve degenerative diseases, diabetes and inflammation infection etc.Therefore there is medical applications prospect widely.
To be the Introduction To Cn Patent of CN102276424A a kind of boils the method that hydrolysis prepares Hydroxytyrosol for publication number, it is by preparing plant extraction liquid, acid adding adjustment solution ph is boil hydrolysis after 1 ~ 3, carry out macroporous resin adsorption again, then ethanol or methanol solution wash-out, concentrate eluant obtains hydroxytyrosol extract.The hydroxytyrosol extract purity that the method obtains is too low, and the application of soda acid will cause corrosion to equipment, and produces pollution to environment.
Publication number is the Chinese invention patent of CN101298411A, disclose a kind of method preparing Hydroxytyrosol from olive extract, cross styrene resin post add deionized water dilution in olive extract after, deionized water wash-out, elutriant is after concentrated, be extracted with ethyl acetate, concentrated obtain shallow orange jelly, then molecular distillation is carried out to it obtain Hydroxytyrosol crude product.The script Hydroxytyrosol be present in raw material only extracts by this invention, and extraction yield is lower.
The extracting method of publication number a kind of Hydroxytyrosol disclosed in the Chinese invention patent of CN101973853 is: obtain extracting solution, adding concentrated hydrochloric acid adjusted to ph is 0 ~ 2, boil 2 ~ 4h hydrolysis, hydrolyzed solution crosses macroporous resin column, acid solution wash-out, merges elutriant, and adjusted to ph is to neutral, concentrated, filter; Filtrate is after macroporous resin column, and through 10% ~ 30% ethanol elution, elutriant, through concentrated, obtains Hydroxytyrosol after drying.The method uses acid solution upper prop, wash-out, not only can produce corrosion to resin equipment, also will to environment.
Publication number is that the Chinese invention patent of CN1665764B discloses a kind of preparation method being rich in the composition of Hydroxytyrosol, it prepares vegetation water from olive, acid adding cultivation makes Oleuropein wherein be converted into Hydroxytyrosol at least 2 months wherein again, then obtains hydroxytyrosol extract with after organic solvent extraction.This method acid adding is cultivated consuming time long, is unsuitable for factorial praluction.
Summary of the invention
For solving the problem, the invention provides a kind of method being prepared Hydroxytyrosol by ion exchange resin conversion Oleuropein, having widened the extraction raw material of Hydroxytyrosol, avoided the acid and alkali corrosion in production process and environmental pollution.
For achieving the above object, the technical scheme that the present invention takes is:
Prepared a method for Hydroxytyrosol by ion exchange resin conversion Oleuropein, comprise the following steps:
S1, raw material to be pulverized, add 10 ~ 20 times amount volume fractions be 20% ~ 60% ethanolic soln carry out Soakage extraction, extract 1 ~ 3 time, extraction time 10min ~ 120min, obtain plant extraction liquid;
S2, to be revolved by the plant extraction liquid of step S1 gained and steam except after alcohol, after utilizing macroporous resin column to adsorb gained plant extraction liquid, the ethanolic soln being 15% ~ 25% with volume fraction washes away high polar impurity part, prepares for other products.And then carry out wash-out with the ethanolic soln that volume fraction is 35% ~ 45%, obtain Oleuropein crude product by concentrated, dry for the elutriant collected;
S3, the Oleuropein crude product of step S2 gained is dissolved in 20% ethanolic soln after cross strongly-acid SO
3 -ion exchange resin, the ethanolic soln being then 70 ~ 90% with volume fraction carries out wash-out, collects elutriant, and concentration and recovery ethanol after merging, obtains high density hydroxytyrosol extract.
Preferably, described step S1 can replace with: by volume fraction be 20% ~ 60% ethanolic soln homogenate extraction is carried out to plant material, Extraction solvent quality is heavy 10 ~ 20 times of raw material, extracts 1 ~ 3 time, extraction time 10min ~ 120min, obtains plant extraction liquid.
Preferably, described raw material is Syringa oblata Lindl., daphne lilac, Syringa veticulata var.mandshurica or olive, and extract part is stem, leaf, flower or fruit.
Preferably, in described step S2, macroporous resin model is the one in HPD-100B or D101.
Preferably, described step S3 middle strong acidity SO
3 -ion exchange resin is the one in 001*7, D61 or D72.
Preferably, be separated at macroporous resin and in ion exchange resin conversion process, by thin-layer chromatography or HPLC detection method, detect Oleuropein, hydroxytyrosol content in solution.
The present invention has following beneficial effect:
Ion exchange resin of the present invention can reuse and reaction conditions is gentle, good stability, solvent for use safety non-toxic, hydrolysis conversion can reach more than 90%, and avoid acid pollution existing for hydrochloric acid hydrolysis and the problem such as difficulty is separated, there is good application prospect, be suitable for carrying out large-scale industrial production; Provide new approach for utilizing the Oleuropein in plant material to prepare Hydroxytyrosol, for the makeup of production high added value and medical material provide new plant-sourced and technical guarantee simultaneously.
Embodiment
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
With 1kg Syringa oblata Lindl. sprig for raw material, carry out homogenate extraction with the ethanolic soln that volume fraction is 20%, obtain extracting solution; Revolved by extracting solution and steam except after alcohol, after utilizing HPD-100B macroporous resin column to adsorb gained plant extraction liquid, the low-concentration ethanol solution being 15% with volume fraction washes away high polar impurity part, prepares for other products.And then carry out wash-out with the high concentration ethanol solution that volume fraction is 40%, obtain Oleuropein crude product by concentrated, dry for the elutriant collected.Strongly-acid SO is crossed after obtained Oleuropein crude product being dissolved in 20% ethanolic soln
3 -ion exchange resin 001*7 resin column, the ethanolic soln being then 70% with volume fraction carries out wash-out, collects effluent liquid and elutriant, and concentration and recovery ethanol after merging, obtain hydroxytyrosol extract 7.5g, detecting its purity with high performance liquid chromatography is 20.3%.
Embodiment 2
With 1kg Syringa veticulata var.mandshurica leaf for raw material, be that the ethanolic soln of 40% carries out Soakage extraction 120min to it by volume fraction, obtain extracting solution; Revolved by extracting solution and steam except after alcohol, after utilizing D101 macroporous resin column to adsorb gained plant extraction liquid, the low-concentration ethanol solution being 20% with volume fraction washes away high polar impurity part, prepares for other products.And then carry out wash-out with the high concentration ethanol solution that volume fraction is 45%, obtain Oleuropein crude product by concentrated, dry for the elutriant collected.Strongly-acid SO is crossed after obtained Oleuropein crude product being dissolved in 20% ethanolic soln
3 -ion exchange resin 001*7 resin column, the ethanolic soln being then 80% with volume fraction carries out wash-out, collects effluent liquid and elutriant, and concentration and recovery ethanol after merging, obtain hydroxytyrosol extract 5.2g, detecting its purity with high performance liquid chromatography is 18.1%.
Embodiment 3
With 1kg daphne lilac sprig for raw material, carry out homogenate extraction with the ethanolic soln that volume fraction is 30%, obtain extracting solution; Revolved by extracting solution and steam except after alcohol, after utilizing HPD-100B macroporous resin column to adsorb gained plant extraction liquid, the low-concentration ethanol solution being 25% with volume fraction washes away high polar impurity part, prepares for other products.And then carry out wash-out with the high concentration ethanol solution that volume fraction is 50%, obtain Oleuropein crude product by concentrated, dry for the elutriant collected.Strongly-acid SO is crossed after obtained Oleuropein crude product being dissolved in 20% ethanolic soln
3 -ion exchange resin 001*7 resin column, the ethanolic soln being then 80% with volume fraction carries out wash-out, collects effluent liquid and elutriant, and concentration and recovery ethanol after merging, obtain hydroxytyrosol extract 9.6g, detecting its purity with high performance liquid chromatography is 18.5%.
Embodiment 4
With 1kg leaf of Syringa oblata Lindl. for raw material, carry out homogenate extraction with the ethanolic soln that volume fraction is 50%, obtain extracting solution; Revolved by extracting solution and steam except after alcohol, after utilizing D101 macroporous resin column to adsorb gained plant extraction liquid, the low-concentration ethanol solution being 30% with volume fraction washes away high polar impurity part, prepares for other products.And then carry out wash-out with the high concentration ethanol solution that volume fraction is 50%, obtain Oleuropein crude product by concentrated, dry for the elutriant collected.Strongly-acid SO is crossed after obtained Oleuropein crude product being dissolved in 20% ethanolic soln
3 -ion exchange resin 001*7 resin column, the ethanolic soln being then 70% with volume fraction carries out wash-out, collects effluent liquid and elutriant, and concentration and recovery ethanol after merging, obtain hydroxytyrosol extract 7.6g, detecting its purity with high performance liquid chromatography is 21.1%.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. prepared a method for Hydroxytyrosol by ion exchange resin conversion Oleuropein, it is characterized in that, comprise the following steps:
S1, raw material to be pulverized, add 10 ~ 20 times amount volume fractions be 20% ~ 60% ethanolic soln carry out Soakage extraction, extract 1 ~ 3 time, extraction time 10min ~ 120min, obtain plant extraction liquid;
S2, the plant extraction liquid of step S1 gained revolved and steams except after alcohol, after utilizing macroporous resin column to adsorb gained plant extraction liquid, the ethanolic soln being 15% ~ 25% with volume fraction washes away high polar impurity part, and then carry out wash-out with the ethanolic soln that volume fraction is 35% ~ 45%, obtain Oleuropein crude product by concentrated, dry for the elutriant collected;
S3, the Oleuropein crude product of step S2 gained is dissolved in 20% ethanolic soln after cross strongly-acid SO
3 -ion exchange resin, the ethanolic soln being then 70 ~ 90% with volume fraction carries out wash-out, collects elutriant, and concentration and recovery ethanol after merging, obtains high density hydroxytyrosol extract.
2. a kind of method being prepared Hydroxytyrosol by ion exchange resin conversion Oleuropein according to claim 1, it is characterized in that, described step S1 can replace with: by volume fraction be 20% ~ 60% ethanolic soln homogenate extraction is carried out to plant material, Extraction solvent quality is heavy 10 ~ 20 times of raw material, extract 1 ~ 3 time, extraction time 10min ~ 120min, obtains plant extraction liquid.
3. a kind of method being prepared Hydroxytyrosol by ion exchange resin conversion Oleuropein according to claim 1, it is characterized in that, described raw material is Syringa oblata Lindl., daphne lilac, Syringa veticulata var.mandshurica or olive, and extract part is stem, leaf, flower or fruit.
4. a kind of method being prepared Hydroxytyrosol by ion exchange resin conversion Oleuropein according to claim 1, it is characterized in that, in described step S2, macroporous resin model is the one in HPD-100B or D101.
5. a kind of method being prepared Hydroxytyrosol by ion exchange resin conversion Oleuropein according to claim 1, be is characterized in that, described step S3 middle strong acidity SO
3 -ion exchange resin is the one in 001*7, D61 or D72.
6. a kind of method being prepared Hydroxytyrosol by ion exchange resin conversion Oleuropein according to claim 1, it is characterized in that, in macroporous resin separation and ion exchange resin conversion process, by thin-layer chromatography or HPLC detection method, detect Oleuropein, hydroxytyrosol content in solution.
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| CN201510067619.9A CN104744220A (en) | 2015-02-05 | 2015-02-05 | Method for preparing hydroxytyrosol by transforming oleuropein by use of ion exchange resin |
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| CN201510067619.9A CN104744220A (en) | 2015-02-05 | 2015-02-05 | Method for preparing hydroxytyrosol by transforming oleuropein by use of ion exchange resin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725197A (en) * | 2015-03-19 | 2015-06-24 | 黑龙江八一农垦大学 | Method for preparing hydroxytyrosol by converting oleuropein through ion exchange resin |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040102657A1 (en) * | 2001-02-15 | 2004-05-27 | Juan Fernandez-Bolanos Guzman | Method for obtaining purified hydroxytyrosol from products and by-products derived from the olive tree |
| EP1582512A1 (en) * | 2004-03-31 | 2005-10-05 | Cognis IP Management GmbH | Process for obtaining hydroxytyrosol from olive leaves extracts |
| CN101973853A (en) * | 2010-09-29 | 2011-02-16 | 桂林莱茵生物科技股份有限公司 | Method for extracting hydroxytyrosol |
| CN104402680A (en) * | 2014-12-12 | 2015-03-11 | 黑龙江八一农垦大学 | Method for preparing hydroxytyrosol by converting oleuropein by virtue of ion exchange resin |
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2015
- 2015-02-05 CN CN201510067619.9A patent/CN104744220A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040102657A1 (en) * | 2001-02-15 | 2004-05-27 | Juan Fernandez-Bolanos Guzman | Method for obtaining purified hydroxytyrosol from products and by-products derived from the olive tree |
| EP1582512A1 (en) * | 2004-03-31 | 2005-10-05 | Cognis IP Management GmbH | Process for obtaining hydroxytyrosol from olive leaves extracts |
| CN101973853A (en) * | 2010-09-29 | 2011-02-16 | 桂林莱茵生物科技股份有限公司 | Method for extracting hydroxytyrosol |
| CN104402680A (en) * | 2014-12-12 | 2015-03-11 | 黑龙江八一农垦大学 | Method for preparing hydroxytyrosol by converting oleuropein by virtue of ion exchange resin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725197A (en) * | 2015-03-19 | 2015-06-24 | 黑龙江八一农垦大学 | Method for preparing hydroxytyrosol by converting oleuropein through ion exchange resin |
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Application publication date: 20150701 |