CN101182284A - Method for extracting high-purity solanesol from potato leaf, tobacco leaf and/or tobacco stem - Google Patents
Method for extracting high-purity solanesol from potato leaf, tobacco leaf and/or tobacco stem Download PDFInfo
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Abstract
A method of extracting high-purified solanesol from potato leaves, tobacco leaves and/or tobacco stems is that the solanesol is extracted from the raw materials by extracting solvent, solanesol extract is obtained after solid-liquid separation; the solanesol extract is processed for the phase-transfer catalytic saponification reaction inside an organic-solvent-buck-phase-transfer catalyst system; the solanesol extract after saponification is completely dissolved in mixed alcohol-acetone solvent under 50 DEG C to 75 DEG C for stationary placing, cooling and filtering; filtrate is steamed to be dry to obtain the solanesol extract after wax removal, and the solanesol extract is dissolved in methanol or acetonitrile in reflux to be frozen and crystallized for obtaining white solid which is dried to obtain the solanesol. The present invention has the advantages of gentle reaction condition, simple technology, short production period, large batch, the high yield and purity of the solanesol and being convenient for industrialization.
Description
Technical field
The present invention relates to a kind of method of from leaf of potato, tobacco leaf and/or tobacco rod, extracting high-purity solanesol.
Background technology
Eggplant Buddhist nun alcohol Solanesol is a kind of polyisoprene alcohol, and molecular formula is C
45H
74The O skeleton symbol is H[CH
2C (CH
3) CHCH
2]
9OH, relative molecular weight: 631, pure product are white waxy solid, 41 ℃ of fusing points.Low-pole is soluble in organic solvent.Eggplant Buddhist nun alcohol is long chain aliphatic alcohol, contains a plurality of unconjugated double bonds in the structure, has the very performance of intensive absorption free radical, mainly is present in tobacco leaf, tobacco rod, the leaf of potato.Eggplant Buddhist nun alcohol is a kind of important medicine intermediate, can be used as synthesise vitamins K
2And ubiquinone
10Raw material, also can be used as the synthesis material of some anti-allergy agent, anti-ulcerative drug, hypolipidemic or cancer therapy drug, itself also be material with medical effect.Ubiquinone
10In medicine, health care and cosmetic field, use very extensively, alleviate chemotherapy side effect etc. as in field of medicaments, being used for the treatment of cardiovascular and cerebrovascular diseases, viral hepatitis, duodenal ulcer and cancer patient; In field of health care products, ubiquinone
10Being used to prevent multiple disease and delaying senility etc., is the popular a kind of healthcare products of state such as American-European-Japanese; At cosmetic field, ubiquinone
10Being used to but the spot smoothing wrinkle, preventing aspects such as skin ageing, is the raw material of the cosmetics of super quality, has a large amount in variety in the makeup as brands such as L'Oreal, Nivea and all contains ubiquinone
10In addition, ubiquinone
10In recent years also be found the more disease that is suitable for, as treatment senile dementia, congenital handicap anaemia etc., so eggplant Buddhist nun alcohol has very big Economic Application exploitation value as a kind of medicine intermediate.
Eggplant Buddhist nun alcohol can extract refining two kinds of methods and produce by synthetic with from natural product.
Because eggplant Buddhist nun alcohol is polyisoprene alcohol, be difficult to reaction was stopped at for nine aggressiveness stages by polymerization synthetic method, and, having a plurality of unsaturated link(age)s in the monomer, the polymeric tacticity also is the huge challenge that the technology of synthetic eggplant Buddhist nun alcohol must face.Eggplant Buddhist nun alcohol is to be present in two ways in the natural products such as tobacco, tobacco rod or potato leaf, and a kind of is the eggplant Buddhist nun alcohol of free state, and a kind of is the eggplant Buddhist nun alcohol of combined.The eggplant Buddhist nun of combined alcohol content account for eggplant Buddhist nun alcohol total amount 40 ~ 60%, the universal method that the eggplant Buddhist nun alcohol of combined is converted into the eggplant Buddhist nun alcohol of free state is an alkaline saponification in its alcoholic solution; Because eggplant Buddhist nun alcohol contains a plurality of unconjugated double bonds, its unstable chemcial property, under the highly basic condition oxidizing reaction takes place easily, thereby reduce the yield of eggplant Buddhist nun alcohol, to this, way commonly used at present is to add weak base, protection of inert gas or add antioxidant, the problem of the oxidation when aforesaid method has solved saponification to a certain extent, there are the following problems also: weak base saponification, speed of response are too, cycle is long, needs high relatively temperature; Protection of inert gas makes reaction be in sealing system substantially, build-up of pressure accumulation easily, and the equipment requirements strictness, and also running cost is very high; Antioxidant must be oxidized prior to eggplant Buddhist nun alcohol, and the oxygen in the consumption reaction system prevents that eggplant Buddhist nun alcohol is oxidized, and this has brought a difficult problem for the separation of the pure and mild antioxidant of eggplant Buddhist nun, and suitable saponification process is to improve the bottleneck place that eggplant Buddhist nun alcohol yield reduces cost.
Have only content just to can be used to produce ubiquinone at the alcohol of the eggplant Buddhist nun more than 90%
10Deng medicine, also have only eggplant the Buddhist nun pure export requirement that just meets elaboration, the purification of eggplant Buddhist nun alcohol and the technology barriers and the bottleneck place that have been refined into industry development more than 98%.In solanesol extract, there is a large amount of nonpolar waxy substances, the character of they and eggplant Buddhist nun alcohol is close, brings very big challenge for the separation and the purification of eggplant Buddhist nun alcohol.
The purifying technique of eggplant Buddhist nun alcohol mainly contains column chromatography, molecular distillation method, supercritical methanol technology and solvent crystallization.Column chromatography ubiquity solvent consumption is big, and the processing condition fluctuation is bigger, and the production cycle is long, and is little in batches, is difficult to shortcomings such as industrialization.Supercritical methanol technology and molecular distillation technique are limited to the separation refining effect of eggplant Buddhist nun alcohol, and simultaneously, their equipment is relative with running cost higher, is difficult to industrialization.
Solvent crystallization is a purification eggplant Buddhist nun alcohol efficient ways, and patent of invention CN1762940A adopts pure alkali soapization, remove impurity with active carbon, alcoholic lye low temperature crystallization, methanol-acetone mixed solvent crystallization, acetonitrile recrystallization.Because eggplant Buddhist nun alcohol polarity is very weak, be easy to be adsorbed on the gac, so, in the process of removal of impurities, can lose a large amount of eggplant Buddhist nun alcohol, thereby reduce the yield (about 77%) of eggplant Buddhist nun alcohol, and this method impurity-eliminating effect is limited, does not carry out paraffin removal step targetedly, the eggplant Buddhist nun alcohol content lower (92%) of product.Patent of invention CN1821196 adopts the method for pure alkali soapization, acetone crystallization, Virahol recrystallization to make the content of eggplant Buddhist nun alcohol reach more than 95% yield 85%.CN1534008A has adopted saponification, washing, and the normal hexane crystallization, the acetonitrile recrystallization obtains the eggplant Buddhist nun alcohol of content more than 95%, yield 0.4%.Aforesaid method all generally lacks effective paraffin removal program, in the product that crystallization and recrystallization obtain, still can residual a certain amount of wax, and, because the oxidation side reaction of eggplant Buddhist nun alcohol in the saponification process makes overall yield on the low side.
Summary of the invention
The purpose of this invention is to provide the high method of from leaf of potato, tobacco leaf and/or tobacco rod, extracting high-purity solanesol of a kind of yield height, purity.
The present invention is to be raw material with tobacco leaf, tobacco rod or leaf of potato, by technologies such as extraction, phase-transfer catalysis saponification, paraffin removal, crystallization and recrystallizations, obtains purity at the alcohol of the eggplant Buddhist nun more than 98% product, and improves the yield of its eggplant Buddhist nun alcohol greatly.
Phase-transfer-catalyzed reactions is a kind of tool reaction of rising recently and is separated into technology one, environmental protection, its essence is that a kind of water miscible reactive material and a kind of oil-soluble reactive material are dissolved in respectively in the water oil two-phase system, in the presence of phase-transfer catalyst, carry out chemical reaction.Because the existence of phase-transfer catalyst is arranged, phase-transfer-catalyzed reactions can guarantee speed of response, do not need special high temperature and special equipment, facility, again since the pure and mild most alkali of eggplant Buddhist nun not same mutually in, the side reaction of base catalysis oxidation eggplant Buddhist nun alcohol seldom, the phase-transfer catalyst overwhelming majority that adds is present in water, can not increase the separation purification difficulty of eggplant Buddhist nun alcohol.The present invention is exactly these characteristics of utilizing phase-transfer-catalyzed reactions, the alkaline saponification solanesol extract, can guarantee that be not oversize reaction time, can reduce the generation of base catalysis oxidation eggplant Buddhist nun alcohol side reaction again to greatest extent, and the buck system can reuse, and do not need to add in the acid and process such as desalination, makes the process recovery ratio height, cost is low, and blowdown is few.
In the purification and treating process of eggplant Buddhist nun alcohol, adopt the technology of alcohol-acetone system paraffin removal, methyl alcohol or acetonitrile crystallization, recrystallization, the purity of eggplant Buddhist nun alcohol is reached more than 98%, whole technological process does not exist contour cost techniques of column chromatography membrane sepn and equipment, technology is simple, product yield is easy to realize industrialization up to more than 92%.
Concrete operations step of the present invention is as follows:
(1) lixiviate: with the leaf of potato that crushes or tobacco leaf, tobacco rod raw material, be 30-90 ℃ and extract wherein eggplant Buddhist nun alcohol fully extracting temperature with extracting solvent, solid-liquid separation, extracting solution merges evaporate to dryness, solanesol extract;
(2) saponification: solanesol extract is in organic solvent-buck-phase-transfer catalyst system, fully stir, controlled temperature carries out the phase-transfer catalysis saponification reaction under 30-90 ℃ of condition, after question response is complete, leave standstill layering, water separates with organic phase, and the organic phase evaporate to dryness obtains solanesol extract after the saponification;
(3) paraffin removal: solanesol extract is made into the saturated solution of medicinal extract in alcohol-acetone mixed solvent in 50-75 ℃ of dissolving fully in alcohol-acetone mixed solvent after the saponification, leaves standstill, and is cooled to room temperature, filters; Filtrate repetition is left standstill, filter operation, and until there not being the white solid thing to separate out, filtrate merges, and evaporate to dryness obtains solanesol extract behind the paraffin removal;
(4) crystallization and recrystallization: solanesol extract is dissolved in the methyl alcohol or acetonitrile in the backflow behind the paraffin removal, is made into the saturated solution of medicinal extract, and freezing and crystallizing filters and obtains solid crystal; Again solid crystal is repeated crystallization once, obtain white solid, after the drying, obtain eggplant Buddhist nun alcohol.
As the described raw material of step (1) be the leaf of potato that crushes or the tobacco leaf that crushes, in the tobacco rod that crushes any one, also can be two or three mixture wherein.
As the described extraction solvent of step (1) is ethanol, chloroform, ethyl acetate, sherwood oil, normal hexane or acetone etc.
As the described organic solvent of step (2) is sherwood oil, hexanaphthene, normal hexane or aromatic hydrocarbon solvent, and arene is benzene, toluene etc.; Described alkali is sodium hydroxide, potassium hydroxide, yellow soda ash or sodium bicarbonate etc.; Described phase-transfer catalyst is benzyl trimethyl ammonium chloride, tetramethyl ammonium chloride, 4-propyl bromide or Tetrabutyl amonium bromide etc.
As water and volume of organic solvent ratio in the described organic solvent-buck of step (2)-phase-transfer catalyst system is 5: 1-1: 4, the mass ratio of phase-transfer catalyst and alkali is 0.5-5: 100, the mass ratio of alkali and medicinal extract is 1-50: 100, and the ratio of medicinal extract and organic solvent is 1g: 20ml-120ml.
As the described alcohol-acetone mixed solvent of step (3), the volume ratio of pure and mild acetone is 1 in alcohol-acetone mixed solvent: 5-10: 1, and alcohol is methyl alcohol or ethanol.
Tc as the described freezing and crystallizing of step (4) is-18-0 ℃, and crystallization time is 12-48 hour.
The eggplant Buddhist nun alcohol yield that preparation method of the present invention produces more than 92%, purity is more than 98%.The present invention has following characteristics
1, saponification process adopts phase-transfer-catalyzed reactions, the reaction conditions gentleness, and under the prerequisite that guarantees speed of response, side reaction is few, eggplant Buddhist nun alcohol yield height (more than 92%), technology is simple, and running cost is low.
2, the alkali-water of saponification employing can reuse, and does not need through adding processes such as acid neutralization, desalination, and cost is lower, reduces discharge of wastewater.
3, do not need expensive technology such as column chromatography, membrane filtration, purity can reach the content more than 98%, and is with short production cycle, big in batches, is convenient to industrialization.
Embodiment
Embodiment 1
Get the dry tobacco leaf that 20g crushes, lixiviate is till ethyl acetate detects less than eggplant Buddhist nun alcohol in mutually repeatedly with 50 ℃ of ethyl acetate, and extracting solution merges evaporate to dryness, must medicinal extract 2g; Add the 100ml hexanaphthene, 100ml water, 0.02g sodium hydroxide, 0.001g tetramethyl ammonium chloride, fully stir, 50 ℃ of heating in water bath till organic phase detects less than combined eggplant Buddhist nun alcohol, separate and evaporate to dryness hexanaphthene phase, the adding volume ratio is that ethanol-acetone mixing solutions of 1: 5 is made into saturated system in 50 ℃, backflow 10min, room temperature left standstill 30 minutes, filtered, filtrate is left standstill again, filter, repeat to leave standstill, operations such as filtration do not have in filtrate till the white mass generation, evaporate to dryness filtrate, obtain eggplant Buddhist nun alcohol crude product behind the paraffin removal, the eggplant Buddhist nun alcohol crude product of methyl alcohol behind reflux state dissolving paraffin removal is made into saturated solution, 0 ℃ of crystallization 48 hours, the solid that filtration obtains is used the acetonitrile recrystallization again, obtains 98.9% eggplant Buddhist nun alcohol after the drying, and total recovery is 94%.
Embodiment 2
Get the dry leaf of potato that 30g crushes, extract eggplant Buddhist nun alcohol until fully with 30 ℃ of diacolations of ethanol, the extracting solution evaporate to dryness, medicinal extract 5g; Add the 100ml normal hexane, 25ml water, 0.15g potassium hydroxide, 0.003g benzyl trimethyl ammonium chloride, fully stir, 40 ℃ of heating in water bath till organic phase detects less than combined eggplant Buddhist nun alcohol, separate and evaporate to dryness normal hexane phase, the adding volume ratio is that methyl alcohol-acetone mixing solutions of 1: 2 is made into saturated system in 55 ℃, backflow 10min, room temperature left standstill 30 minutes, filtered, filtrate is left standstill again, filter, repeat to leave standstill, filter operation does not have in filtrate till the white mass generation, evaporate to dryness filtrate, obtain eggplant Buddhist nun alcohol crude product behind the paraffin removal, the eggplant Buddhist nun alcohol crude product of acetonitrile behind reflux state dissolving paraffin removal is made into saturated solution,-10 ℃ of crystallizations 24 hours, the solid that filtration obtains is used the acetonitrile recrystallization again, obtains 98.7% eggplant Buddhist nun alcohol after the drying, and total recovery is 92%.
Embodiment 3
Get the dry tobacco rod that 30g crushes, with 60 ℃ of ethanol repeatedly supersound extraction eggplant Buddhist nun alcohol until fully, the extracting solution evaporate to dryness, medicinal extract 1.0g; Add 30ml benzene, 150ml water, 0.2g yellow soda ash, 0.001g tetramethyl ammonium chloride, fully stir, 60 ℃ of heating in water bath till organic phase detects less than combined eggplant Buddhist nun alcohol, separate and evaporate to dryness benzene phase, the adding volume ratio is that ethanol-acetone mixing solutions of 1: 1 is made into saturated system in 60 ℃, backflow 10min, room temperature left standstill 30 minutes, filtered, filtrate is left standstill again, filter, repeat to leave standstill, filter operation does not have in filtrate till the white mass generation, evaporate to dryness filtrate, obtain eggplant Buddhist nun alcohol crude product behind the paraffin removal, the eggplant Buddhist nun alcohol crude product of methyl alcohol behind reflux state dissolving paraffin removal is made into saturated solution,-10 ℃ of crystallizations 24 hours, the solid that filtration obtains is used recrystallizing methanol again, obtains 98.0% eggplant Buddhist nun alcohol after the drying, and total recovery is 95%.
Embodiment 4
Get dry tobacco leaf that 20g crushes and leaf of potato mixture (1: 1, w/w), with 40 ℃ of chloroforms repeatedly lixiviate eggplant Buddhist nun alcohol until fully, the extracting solution evaporate to dryness, medicinal extract 1.0g; Add 120ml toluene, 50ml water, 0.08g sodium bicarbonate, 0.0004g 4-propyl bromide, fully stir, 80 ℃ of heating in water bath till organic phase detects less than combined eggplant Buddhist nun alcohol, separate and evaporate to dryness toluene phase, the adding volume ratio is that methyl alcohol-acetone mixing solutions of 2: 1 is made into saturated system in 62 ℃, backflow 10min, room temperature left standstill 30 minutes, filtered, filtrate is left standstill again, filter, repeat to leave standstill, operations such as filtration do not have in filtrate till the white mass generation, evaporate to dryness filtrate, obtain eggplant Buddhist nun alcohol crude product behind the paraffin removal, the eggplant Buddhist nun alcohol crude product of acetonitrile behind reflux state dissolving paraffin removal is made into saturated solution, 0 ℃ of crystallization 48 hours, the solid that filtration obtains is used recrystallizing methanol again, obtains 99.1% eggplant Buddhist nun alcohol after the drying, and total recovery is 94%.
Embodiment 5
Get the mixture (5: 1 of dry tobacco leaf that 20g crushes and tobacco rod, w/w), supersound extraction eggplant Buddhist nun alcohol is until fully repeatedly with 50 ℃ of normal hexanes, and extracting solution is concentrated into 150ml, adds 50ml water, 0.15g sodium bicarbonate, 0.007g Tetrabutyl amonium bromide fully stirs 30 ℃ of heating in water bath, till organic phase detects less than combined eggplant Buddhist nun alcohol, separate and evaporate to dryness normal hexane phase, the adding volume ratio is that ethanol-acetone mixing solutions of 3: 1 is made into saturated system, backflow 10min in 70 ℃, room temperature left standstill 30 minutes, filter, filtrate is left standstill again, filters, repeat to leave standstill, operations such as filtration, till not having white mass to generate in filtrate, evaporate to dryness filtrate obtains eggplant Buddhist nun alcohol crude product behind the paraffin removal, the eggplant Buddhist nun alcohol crude product of methyl alcohol behind reflux state dissolving paraffin removal, be made into saturated solution,, filter the solid that obtains and use the acetonitrile recrystallization again-18 ℃ of crystallizations 24 hours, obtain 99.6% eggplant Buddhist nun alcohol after the drying, total recovery is 94%.
Embodiment 6
Get the mixture (3: 1 of dry leaf of potato that 30g crushes and tobacco rod, w/w), extract 80 ℃ with the sherwood oil Soxhlet and extract eggplant Buddhist nun alcohol until fully, extracting solution is concentrated into 100ml, adds 100ml water, 0.1g yellow soda ash, 0.005g 4-propyl bromide fully stirs 70 ℃ of heating in water bath, till organic phase detects less than combined eggplant Buddhist nun alcohol, separate and evaporate to dryness sherwood oil phase, the adding volume ratio is that methyl alcohol-acetone mixing solutions of 4: 1 is made into saturated system, backflow 10min in 65 ℃, room temperature left standstill 30 minutes, filter, filtrate is left standstill again, filters, repeat to leave standstill, filter operation, till not having white mass to generate in filtrate, evaporate to dryness filtrate obtains eggplant Buddhist nun alcohol crude product behind the paraffin removal, the eggplant Buddhist nun alcohol crude product of methyl alcohol behind reflux state dissolving paraffin removal, be made into saturated solution,, filter the solid that obtains and use recrystallizing methanol again-18 ℃ of crystallizations 24 hours, obtain 99.3% eggplant Buddhist nun alcohol after the drying, total recovery is 98%.
Embodiment 7
Get the mixture (5: 1 of dry tobacco rod that 30g crushes and tobacco leaf, w/w), extract (90 ℃) eggplant Buddhist nun alcohol until fully with the sherwood oil Soxhlet, extracting solution is concentrated into 80m, and l adds 160ml water, 0.2g sodium bicarbonate, 0.008g Tetrabutyl amonium bromide fully stirs 90 ℃ of heating in water bath, till organic phase detects less than combined eggplant Buddhist nun alcohol, separate and evaporate to dryness sherwood oil phase, the adding volume ratio is that ethanol-acetone mixing solutions of 5: 1 is made into saturated system, backflow 10min in 75 ℃, room temperature left standstill 30 minutes, filter, filtrate is left standstill again, filters, repeat to leave standstill, operations such as filtration, till not having white mass to generate in filtrate, evaporate to dryness filtrate obtains eggplant Buddhist nun alcohol crude product behind the paraffin removal, the eggplant Buddhist nun alcohol crude product of acetonitrile behind reflux state dissolving paraffin removal, be made into saturated solution,, filter the solid that obtains and use the acetonitrile recrystallization again-10 ℃ of crystallizations 24 hours, obtain 98.3% eggplant Buddhist nun alcohol after the drying, total recovery is 97%.
Embodiment 8
Get dry tobacco leaf, leaf of potato and tobacco rod that 20g crushes mixture (4: 1: 1, w/w/w), extract eggplant Buddhist nun alcohol until fully with 30 ℃ of diacolations of acetone, the extracting solution evaporate to dryness, medicinal extract 2g; Add the 100ml hexanaphthene, 300ml water, 1g yellow soda ash, 0.001g benzyl trimethyl ammonium chloride, fully stir, 50 ℃ of heating in water bath till organic phase detects less than combined eggplant Buddhist nun alcohol, separate and evaporate to dryness hexanaphthene phase, the adding volume ratio is that methyl alcohol-acetone mixing solutions of 2: 3 is made into saturated system in 60 ℃, backflow 10min, room temperature left standstill 30 minutes, filtered, filtrate is left standstill again, filter, repeat to leave standstill, operations such as filtration do not have in filtrate till the white mass generation, evaporate to dryness filtrate, obtain eggplant Buddhist nun alcohol crude product behind the paraffin removal, the eggplant Buddhist nun alcohol crude product of methyl alcohol behind reflux state dissolving paraffin removal is made into saturated solution,-18 ℃ of crystallizations 24 hours, the solid that filtration obtains is used the acetonitrile recrystallization again, obtains 98.2% eggplant Buddhist nun alcohol after the drying, and total recovery is 99%.
Claims (10)
1. a method of extracting high-purity solanesol from leaf of potato, tobacco leaf and/or tobacco rod is characterized in that comprising the steps:
(1) lixiviate: with the leaf of potato that crushes or tobacco leaf, tobacco rod raw material, be 30-90 ℃ and extract wherein eggplant Buddhist nun alcohol fully extracting temperature with extracting solvent, solid-liquid separation, extracting solution merges evaporate to dryness, solanesol extract;
(2) saponification: solanesol extract is in organic solvent-buck-phase-transfer catalyst system, fully stir, controlled temperature carries out the phase-transfer catalysis saponification reaction under 30-90 ℃ of condition, after question response is complete, leave standstill layering, water separates with organic phase, and the organic phase evaporate to dryness obtains solanesol extract after the saponification;
(3) paraffin removal: solanesol extract is made into the saturated solution of medicinal extract in alcohol-acetone mixed solvent in 50-75 ℃ of dissolving fully in alcohol-acetone mixed solvent after the saponification, leaves standstill, and cooling is filtered; Filtrate repetition is left standstill, filter operation, and until there not being the white solid thing to separate out, filtrate merges, and evaporate to dryness obtains solanesol extract behind the paraffin removal;
(4) crystallization and recrystallization: solanesol extract is dissolved in the methyl alcohol or acetonitrile in the backflow behind the paraffin removal, is made into the saturated solution of medicinal extract, and freezing and crystallizing filters and obtains solid crystal; Again solid crystal is repeated crystallization once, obtain white solid, after the drying, obtain eggplant Buddhist nun alcohol.
2. a kind of method of extracting high-purity solanesol from leaf of potato, tobacco leaf and/or tobacco rod as claimed in claim 1 is characterized in that the described raw material of step (1) is any one or a few in leaf of potato, tobacco leaf or the tobacco rod that crushes.
3. a kind of method of extracting high-purity solanesol from leaf of potato, tobacco leaf and/or tobacco rod as claimed in claim 1 is characterized in that described extraction solvent is ethanol, chloroform, ethyl acetate, sherwood oil, normal hexane or acetone.
4. a kind of method of extracting high-purity solanesol from leaf of potato, tobacco leaf and/or tobacco rod as claimed in claim 1 is characterized in that described organic solvent is sherwood oil, hexanaphthene, normal hexane or aromatic hydrocarbon solvent, and arene is or toluene.
5. a kind of method of extracting high-purity solanesol from leaf of potato, tobacco leaf and/or tobacco rod as claimed in claim 1 is characterized in that described alkali is sodium hydroxide, potassium hydroxide, yellow soda ash or sodium bicarbonate.
6. a kind of method of extracting high-purity solanesol from leaf of potato, tobacco leaf and/or tobacco rod as claimed in claim 1 is characterized in that described phase-transfer catalyst is benzyl trimethyl ammonium chloride, tetramethyl ammonium chloride, 4-propyl bromide or Tetrabutyl amonium bromide.
7. a kind of method of from leaf of potato, tobacco leaf and/or tobacco rod, extracting high-purity solanesol as claimed in claim 1, it is characterized in that water and volume of organic solvent ratio are 5 in described organic solvent-buck-phase-transfer catalyst system: 1-1: 4, the mass ratio of phase-transfer catalyst and alkali is 0.5-5: 100, the mass ratio of alkali and medicinal extract is 1-50: 100, and the ratio of medicinal extract and organic solvent is 1g: 20ml-120ml.
8. a kind of method of extracting high-purity solanesol from leaf of potato, tobacco leaf and/or tobacco rod as claimed in claim 1, the volume ratio that it is characterized in that pure and mild acetone in described alcohol-acetone mixed solvent is 1: 5-10: 1.
9. a kind of method of extracting high-purity solanesol from leaf of potato, tobacco leaf and/or tobacco rod as claimed in claim 8 is characterized in that described alcohol is methyl alcohol or ethanol.
10. a kind of method of extracting high-purity solanesol from leaf of potato, tobacco leaf and/or tobacco rod as claimed in claim 1 is characterized in that described freezing and crystallizing is meant that Tc is-18-0 ℃, and crystallization time is 12-48 hour.
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| CNB2007101854663A CN100548954C (en) | 2007-12-21 | 2007-12-21 | From leaf of potato, tobacco leaf and/or tobacco rod, extract the method for high-purity solanesol |
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| CNB2007101854663A CN100548954C (en) | 2007-12-21 | 2007-12-21 | From leaf of potato, tobacco leaf and/or tobacco rod, extract the method for high-purity solanesol |
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| CN101935269A (en) * | 2010-09-30 | 2011-01-05 | 长安大学 | Method for precipitating, separating and purifying solanesol |
| CN102154376A (en) * | 2010-12-15 | 2011-08-17 | 天水师范学院 | Method of double enzymatic coupling reaction assisted extraction of solanesol |
| CN102408311A (en) * | 2011-11-30 | 2012-04-11 | 薛刚 | Method for purifying solanesol through urea adduction fractionation |
| CN103183585A (en) * | 2012-12-10 | 2013-07-03 | 青岛研博电子有限公司 | Method for extracting solanesol by combining ultrasonic enzymic method and supercritical carbon dioxide |
| CN103338661A (en) * | 2010-12-17 | 2013-10-02 | R·J·雷诺兹烟草公司 | Tobacco-derived syrup composition |
| CN105884579A (en) * | 2016-05-13 | 2016-08-24 | 红云红河烟草(集团)有限责任公司 | Method for extracting solanesol from waste tobacco leaves |
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| CN1712392A (en) * | 2005-06-09 | 2005-12-28 | 扈建民 | Extraction of solanesol from potato leaves |
| CN1762940A (en) * | 2005-09-09 | 2006-04-26 | 夏士朋 | Method for extracting purified solanesol from potato leaf and waste tobacco leaf |
| CN100396654C (en) * | 2005-12-07 | 2008-06-25 | 兰州众翼化工有限公司 | Method for extracting high-purity solanesol from potato leaf |
| CN100410222C (en) * | 2006-02-13 | 2008-08-13 | 李祥庆 | Method for extracting high purity solanesol from low content solanesol extract |
| CN101050212A (en) * | 2007-05-18 | 2007-10-10 | 中南大学 | Method for extracting high pure natural nicotine and solanesol at same time from waste and low-grade tobacco |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101935269A (en) * | 2010-09-30 | 2011-01-05 | 长安大学 | Method for precipitating, separating and purifying solanesol |
| CN101935269B (en) * | 2010-09-30 | 2013-06-12 | 长安大学 | Method for precipitating, separating and purifying solanesol |
| CN102154376A (en) * | 2010-12-15 | 2011-08-17 | 天水师范学院 | Method of double enzymatic coupling reaction assisted extraction of solanesol |
| CN102154376B (en) * | 2010-12-15 | 2012-12-05 | 天水师范学院 | Method of double enzymatic coupling reaction for assisting extraction of solanesol |
| CN103338661A (en) * | 2010-12-17 | 2013-10-02 | R·J·雷诺兹烟草公司 | Tobacco-derived syrup composition |
| CN103338661B (en) * | 2010-12-17 | 2016-07-13 | R·J·雷诺兹烟草公司 | The syrup composition that Nicotiana tabacum L. is derivative |
| CN102408311A (en) * | 2011-11-30 | 2012-04-11 | 薛刚 | Method for purifying solanesol through urea adduction fractionation |
| CN102408311B (en) * | 2011-11-30 | 2014-04-09 | 南阳理工学院 | Method for purifying solanesol through urea adduction fractionation |
| CN103183585A (en) * | 2012-12-10 | 2013-07-03 | 青岛研博电子有限公司 | Method for extracting solanesol by combining ultrasonic enzymic method and supercritical carbon dioxide |
| CN105884579A (en) * | 2016-05-13 | 2016-08-24 | 红云红河烟草(集团)有限责任公司 | Method for extracting solanesol from waste tobacco leaves |
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