CN107163618A - Supercritical fluid column chromatography prepares the method and device of high-purity capsochrome Capsaicin - Google Patents

Supercritical fluid column chromatography prepares the method and device of high-purity capsochrome Capsaicin Download PDF

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Publication number
CN107163618A
CN107163618A CN201710445174.2A CN201710445174A CN107163618A CN 107163618 A CN107163618 A CN 107163618A CN 201710445174 A CN201710445174 A CN 201710445174A CN 107163618 A CN107163618 A CN 107163618A
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capsaicin
supercritical fluid
capsochrome
carbon dioxide
capsorubin
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林劲冬
黄俊霖
陶正国
朱熇
崔海滨
冼啟志
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GUANGZHOU LEADER BIO-TECHNOLOGY Co Ltd
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GUANGZHOU LEADER BIO-TECHNOLOGY Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B61/00Dyes of natural origin prepared from natural sources, e.g. vegetable sources
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D15/00Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/08Selective adsorption, e.g. chromatography
    • B01D15/10Selective adsorption, e.g. chromatography characterised by constructional or operational features
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00Preparation of carboxylic acid amides
    • C07C231/22Separation; Purification; Stabilisation; Use of additives
    • C07C231/24Separation; Purification
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00Carboxylic acid amides
    • C07C233/01Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/16Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
    • C07C233/17Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
    • C07C233/18Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of an acyclic saturated carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00Carboxylic acid amides
    • C07C233/01Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/16Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
    • C07C233/17Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
    • C07C233/20Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C403/00Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
    • C07C403/24Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by six-membered non-aromatic rings, e.g. beta-carotene
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/62Three oxygen atoms, e.g. ascorbic acid
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/54Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)

Abstract

Supercritical fluid pillar layer separation prepares the method and apparatus of high-purity capsochrome Capsaicin, and its step includes:Supercritical carbon dioxide or modifying supercritical carbon dioxide in charging tank with after capsicum oleoresin or the miscible filtering of their saponification resultant, separation is adsorbed and is desorbed by the preparative chromatographic column of filled solid sorbent particles, according to the signal of detector, the eluent containing different solutes is collected to corresponding collector, then solute component is separated with carbon dioxide equal solvent in the separator, tail gas is compressed into liquid after dust removal by filtration, the de- liquid of condensation and absorption column purification and returns to storage tank recycling.This technique can prepare extremely low molten residual or even without the high sterling of the Capsaicin such as the high sterling of the pigment such as molten residual capsorubin, capsorubin, bata-carotene, β kryptoxanthins, luteole, capsorubin ester, capsorubin ester, kryptoxanthin ester and nordihydrocapsaicin, capsaicine, dihydrocapsaicin.

Description

Supercritical fluid column chromatography prepares the method and device of high-purity capsochrome Capsaicin
Technical field
Chromatographic technique is prepared the present invention relates to supercritical fluid, more particularly to is prepared using supercritical fluid pillar layer separation The technique of high-purity natural product, belongs to natural products purifying and preparation field.
Background technology
Supercritical fluid column chromatography, is also supercritical fluid column chromatography, is the solia particle using supercritical fluid as mobile phase Adsorbent is the chromatographic column isolation technics of stationary phase.Supercritical fluid have similar liquids density and similar organic solvent it is molten Agent power, and diffusion coefficient is higher than 1-2 order of magnitude of liquid.Near critical-temperature, the minor variations of pressure can cause density Large change.And density influences the solvability of supercritical fluid with being changed significantly, therefore pass through and change influence density Technological parameter (mainly pressure and temperature) relatively easily can prepare material of different nature by chromatography separation.Currently, It is supercritical carbon dioxide to study most ripe supercritical medium.
Capsicum oleoresin be it is a kind of extracted from capsicum be made up of capsochrome, Capsaicin, vitamin, polyphenol etc. Mixture.Wherein pigment composition includes double hydroxyl carotenoid such as capsorubin, capsorubin, luteole, violaxanthin The mono fatty acid ester and double acid ester of monomer and its a variety of straight chain saturations and unrighted acid;The monohydroxy such as kryptoxanthin class is recklessly The mono fatty acid ester of radish element monomer and its a variety of straight chain saturations and unrighted acid;And beta carotene etc..Capsaicin composition Including 12 kinds of 9-11 carbon branched chain fatty acid vanilla amide compounds, i.e. capsaicine, dihydrocapsaicin, nordihydrocapsaicin, high by two Hydrogen capsaicine etc..In addition, the also ascorbic acid containing high level in capsicum oleoresin.
Because the polarity spectrum of capsochrome and Capsaicin is larger, and two class components show to the maximum absorption wavelength of ultraviolet Write different, respectively in 450-480nm and 260-290nm scopes, therefore quantitatively divide in high performance liquid chromatography and Supercritical fluid chromatography When analysing capsochrome and Capsaicin, detected respectively usually using different chromatographic conditions.In Overcritical prepared chromatographic, it is possible to use This nature difference, in regular hour node, pressure and the inspection of polarity and overcritical mobile phase by regulating and controlling eluant, eluent The Detection wavelength of device is surveyed, two class materials are disposably separated step by step.And the polarity of ascorbic acid is compared with the serial chemical combination of capsaicine Thing is higher, and maximum absorption wavelength is also different from capsochrome, Capsaicin, typically in 245nm or so.By the acidity for adjusting mobile phase It can be separated from series capsicum alkali.
Either common organic solvent extractionprocess, or supercritical extraction process, can not all produce no solvent residue Capsochrome or Capsaicin product, it is more difficult to obtain capsorubin, capsorubin, capsaicine, dihydrocapsaicin, drop dihydro capsicum The sterling of the single compounds such as alkali.Although and can accomplish that fine separation is each using organic solvent for the high performance liquid chromatography of mobile phase Kind of pigment and Capsaicin compound, it can be difficult to be fully solved problem of solvent residual, and deposit and use inflammable and explosive solvent under high pressure Excessive risk problem.
Supercritical carbon dioxide can be used as most of nonpolar, middle polarity the molecules of flowing phase separation.Overcritical dioxy Change carbon, which need to only reduce pressure, can be converted into gas and be kept completely separate with solute, without problem of solvent residual.So, overcritical two Carbonoxide prepares chromatogram has its unique and irreplaceable advantage in fields such as food, pharmaceutical raw materials.And carbon dioxide is nontoxic Harmless, incombustible, plant-scale supercritical carbon dioxide preparing chromatography system has organic solvent to be the efficient of mobile phase The unrivaled security of liquid phantom preparing chromatogram.
Using the medium above polarity such as the similar capsaicine of the dynamic mutually elution separation of stream of supercritical carbon dioxide, ascorbic acid , it is necessary to which adding polar solvent as polar modifier of mobile phase or acid-base property compound improves flowing as additive during compound The eluting power of highly polar material in relatively.Methanol, ethanol are to use most polarity modifiers.When separating ascorbic acid, In addition to methanol polar solvent, the inorganic acidic materials such as phosphoric acid can also be added to accelerate elution process.Many analysis skills Art research shows that overcritical analysis chromatogram is analyzing capsaicine, dihydrocapsaicin isopolarity Capsaicin or capsicum in quantifying capsicum It is more efficient all than high performance liquid chromatography in terms of the low polarity pigment such as red pigment and its ester, capsorubin and its ester.
There is researcher to invent some incomplete supercritical carbon dioxide preparing chromatography systems, but in these inventions Mentioned preparing chromatography system is without reference to tail gas recycle, also without crucial accurate separated collection system, the work used Skill technical scheme is not suitable for preparing the high-purity Capsaicin pigment product involved by this patent from capsicum or pepper extract.
Patent document CN201010591082.3 discloses a kind of Supercritical fluid chromatography separation dress of orange oil element in sweet shaddock oil Put and its method.The device is exclusively used in the separation from sweet shaddock oil and prepares orange oil element, because being with supercritical carbon dioxide only Working medium, is not suitable for compound highly polar in the similar capsaicine of separation, ascorbic acid etc..The device is not provided with tail gas recycle and followed Loop system, is not suitable for commercial Application.
Patent document CN201310289339.3 discloses the super of oxygenatedchemicals in a kind of separation concentration tangerine oil and faced Boundary's extraction-chromatography process integration.The technique is same only with supercritical carbon dioxide as working medium, is also not suitable for separating polar higher The compound such as capsaicine, dihydrocapsaicin.Due to the limitation of technique, operation every time is required for opening equipment paraffin removal, it is impossible to Realize continuous operation.The device is not provided with the tail gas recycle circulatory system as other invented, unfavorable to environment, no It is adapted to commercial Application.
Patent document CN201610121712.8 discloses a kind of supercritical fluid chromatograph with multiple-way valve and for making Standby isolation and purification method.Switched by the switch of multiple-way valve so that blending ingredients to be separated pass through the pre-separation of pre-separation post, caught more Clustered column trapping, the clastotype of how main separation post separation are separated.This design cycle is excessively complicated, it is not easy to realize scale Change operation, the technique also has no the separation and recovery equipment and flow for setting carbon dioxide tail gas and solvent composition.And the device Without accurate sterling separation and recovery system, separation analysis is suitable only for, and high-purity capsochrome, Capsaicin compound can not be realized Separation prepare.
At present, there is not yet separation prepares high-purity capsaicin, dihydrocapsaicin, capsorubin, capsorubin, kryptoxanthin Overcritical prepared chromatographic technology report.Also have no and collect piece-rate system and the tail gas recycle circulatory system with commercial viability Supercritical fluid chromatography piece-rate system related invention.Device of the present invention, is both to be used to realize that chili ingredient is divided entirely From supercritical fluid column chromatography preparation system, be also the overcritical post color that the feasible separation of industry prepares high-purity pigment, Capsaicin Spectra system.
The content of the invention
It is used for the invention discloses one kind from thick capsicum oleoresin, or the capsicum oleoresin Jing Guo initial gross separation, or they Saponified middle separation prepare high-purity capsorubin, capsorubin ester, capsorubin, capsorubin ester, β-carrot The supercritical fluid chromatography method and apparatus of the native compounds such as element, kryptoxanthin, kryptoxanthin ester, capsaicine, dihydrocapsaicin.Its Step includes:By the liquid carbon dioxide in storage tank by passing through high-pressure pump respectively with polarity modifier after pump head cooler precooling It is passed through after premixing according to a certain percentage in interval charging tank, heating pressurization reaches specific supercriticality.Supercritical fluid exists It is miscible with capsicum oleoresin or its saponification resultant in charging tank, chromatographed after filtering by the preparative of filled solid sorbent particles Post is adsorbed and is desorbed separation.According to the concentration signal of detector, singly separate target components at each or each group specific Target components are flowed completely through controls supercritical fluid directly to pass to detector from the bypass before charging tank at once after detector, by Through being loaded into the corresponding collector of collection system by the corresponding simple target component of detector or the combination of specific target components, Then target solute component is separated with carbon dioxide equal solvent in the separator.Tail gas by dust removal by filtration, the de- liquid of condensation and Liquid is compressed into after absorption column purification and returns to storage tank recycling.
This method can prepare extremely low molten residual or even without molten residual capsorubin, capsorubin, beta carotene, β-hidden Huang The high sterling of the pigment such as matter, capsorubin ester, capsorubin ester, kryptoxanthin ester, nordihydrocapsaicin, capsaicine, dihydro capsicum The high sterling of the Capsaicins such as alkali, and other chili ingredients such as ascorbic acid high sterling.
The supercritical fluid column chromatography of the present invention, which prepares capsochrome Capsaicin technique and device characteristic, is:
Device contains the one or more groups of charging systems fed for interval.When interval charging tank reaches more than two, Interval charging-continuous separating operation pattern without shutting down can be used, by the rotation interval between different charging tanks plus Material, maintains supercritical fluid persistent loop mass transfer, and separation prepares target product.
Charging tank operating pressure is 8-100MPa, chuck heating-up temperature room temperature to 90 DEG C it is controllable, sample cell is detachable, two There is the sealing of 0 type circle, 1-200 μm of aperture sieve plate is capped, for retaining solid impurity and insoluble matter in raw material.
Device contains many logical detectors, and detector is constructively at least up to three-dimensional intercommunication, so as to can be directly from charging tank Preceding supercritical fluid passage bypass imports the supercritical fluid without solute to detector, is leading to the shooting flow of chromatographic column Body stops not being collected into the target fraction for flowing through detector eluted impurely controllably suitably in the state of flowing Collector in.
Detector can be containing more than one group of ultra-violet absorption spectrum sample cell, if necessary using the purple of multigroup different wave length Outside line monitors the separation situation of the different type material such as capsaicine, capsochrome simultaneously.Detector can also be photodiode Array detector (PAD or DAD), differential refraction detector (RID), EISD (ELSD), fluorescence detector (FLD) in one or more or used simultaneously with UV detectors.
Using supercritical carbon dioxide fluid or based on supercritical carbon dioxide, a certain proportion of polarity modifier is added Fluid-mixing be eluant, eluent.Polarity modifier can be water, methanol, ethanol, isopropanol, ethyl acetate, n-hexane, acetone, Acetonitrile, tetrahydrofuran, ethylene glycol monomethyl ether, butyl glycol ether, petroleum ether, dichloromethane, chloroform, carbon tetrachloride, can also It is their mixture.As needed, phosphoric acid, formic acid, acetic acid, trifluoroacetic acid, ammoniacal liquor, isopropylamine, triethanolamine can be added Improve eluting power of the CO 2 supercritical mobile phase to highly polar soda acid compound Deng acid-base property compound.
Adsorbent stationary phase is the silica gel particle of silica gel particle or surface chemistry β-cyclodextrin used in device, also may be used To be alundum (Al2O3), activated carbon, magnesium silicate, polyamide, diatomaceous earth particle, or they press the mixture of certain ratio.Such as It is necessary, the chromatographic column that can connect same or different strengthens the separation to a certain product.As needed, once fail to separate The component combination come can continue to be passed through next stage chromatography column progress secondary separation, make after can also directly collecting separation mobile phase For product.
The piece-rate system of device performs operation according to the signal of detector.Detector is flowed completely through detecting target product The mobile phase for not carrying solute is bypassed before charging tank at once afterwards and is passed directly into detector, target product is brought into segregative line System, promotes and cleans the corresponding cut separated directly after detector, realize that technical grade is other and be precisely separated.
The present invention uses the adsorbents such as filling gel, bonded silica gel, activated carbon, bonded silica gel, aluminum oxide or calcium silicates Chromatographic column, disposably separation can prepare the classes such as capsorubin, capsorubin, zeaxanthin, kryptoxanthin under suitable condition The dye compound such as carrotene monomer and its aliphatic acid list (double) ester and beta carotene, capsaicine, dihydrocapsaicin, drop two The Capsaicin compound such as hydrogen capsaicine and homodihydrocapsaicin, if it is necessary, separation simultaneously prepares the vitamins such as ascorbic acid Compound.The technique can be fed intake intermittently operated by single channel, it would however also be possible to employ the feeding system of binary channels or more is at two Or alternately fed intake in two or more charging tank, the continuous closed-loop flowing of supercritical fluid is realized, separation incessantly prepares product. Its characterization step includes:The natural capsicum such as capsicum oleoresin extract or its saponification resultant are added to by charge pipe and fed intake Carbon dioxide, is compressed to more than critical pressure and is passed through charging tank by tank by the high-pressure pump with pump head cooling system from liquid Middle dissolving raw material, as needed, appropriate polarity modifier and additive and overcritical dioxy is conveyed by another high-pressure pump Change carbon mixing, fluid-mixing is brought the raw material in charging tank into chromatographic column with temperature control system and separated.According to The signal of thread detector, controls corresponding acquisition channel, by the isolated target components being dissolved in supercritical fluid point It is not collected into different collectors, then by the decompression that heats up in each separator provided with temperature control system and pressure regulating system Middle release carbon dioxide equal solvent component, obtains corresponding product.At each group, back pressure control is set between collector and separator Valve processed, the operating pressure before maintaining separator is on the critical pressure of carbon dioxide.Two separated from separator Carbonoxide tail gas pressurizes into liquid again after purification in condensation decompression is except residual tank and active carbon adsorption column, and two are returned with pump conveying Recycled in carbonoxide flow container.
Entered respectively as needed according to the different and isolated colour components and Capsaicin component of raw material and separating technology Enter corresponding collector.In order to ensure the purity of product, in specific production process, each product uses a special receipts Storage, depending on the quantity of collector is according to the type and quantity of target product.The need for this technique can be according to production, adjust The composition and ratio of whole eluant, eluent, the filler composition of chromatographic column, size, to prepare capsaicin, the capsochrome of various purity With vitamin etc..The cooling that the carbon dioxide separated with solute removes residual tank by the dust removal by filtration in separator, condensation decompression is removed Solvent and adsorption column absorption except it is molten it is residual after, it is again pressurized liquefied, recycle.This technique close loop maneuver, environmental pollution is minimum; Material treatment temperature is low, can retained product to greatest extent bioactivity;Can a step separation prepare i.e. obtain at a relatively high purity Specific products, it might even be possible to prepared by way of section is without any organic solvent at the beginning of in pigment separated completely solvent-free Pigment product.
This technique can go out polarity spectrum very remote pigment and Capsaicin composition using timesharing gradient elution technique first separation. Under the conditions of certain stationary phase, only by the polarity of gradient change mobile phase, add appropriate Mobile Phase Additives and promote elution And separation, prepare capsochrome, Capsaicin, ascorbic acid in a separation circulation separation simultaneously.
The charging system of the present invention can be using double tanks pattern in parallel, alternate intermittent charging, so as to one of wherein interval When charging, another head tank can be used normally to produce.
In order to which further raising prepares the efficiency of post, it is to avoid frequently dismantle main splitter, the present invention is after charging tank, color One section of replaceable Filter column is set up in position before spectrum post.Filter column can use the filler with chromatographic column same type, Can also be different fillers, particle diameter can be consistent with splitter fixation, can also be smaller.Before separation will be insoluble miscellaneous Matter and the material of most of difficult elution are filtered out, and can play a part of the space availability ratio that raising prepares post.Filter column institute every From difficult elution component, can behind heat up and gradually be eluted in the case of increasing modifying agent and isolate component therein Come, insoluble matter is then cleared up when up to significantly affecting filter efficiency by changing Filter column.
After column outlet, high pressure resistant on-line checking device is installed close to product collection system, for example with ultraviolet point Light photometer component, the change in concentration of monitoring kinds of ingredients is scanned with 260nm-480nm absorbing wavelengths scope online.Detector is also Can be photodiode array detector (PAD or DAD), differential refraction detector (RID), EISD (ELSD), in fluorescence detector (FLD) one or more or used simultaneously with UV detectors.The valve of product collection system is opened Conjunction can be triggered by detector signal, and corresponding electrically executing agency performs automatically.Also can be by manually according to real-time signal data Directly control.
This technique can produce needs according to the separation of product, adjust pressure, temperature and the flow velocity of supercritical carbon dioxide, Or the flow velocity and species of adjustment polarity modifier and additive, or the adjustment filler composition of chromatographic column, size, the quantity connected With type, (colourless) mixing capsaicin, (without peppery) mixing capsochrome or single capsorubin (ester), peppery can be prepared respectively Green pepper rubine element (ester), beta carotene, kryptoxanthin (ester), zeaxanthin (ester), capsaicine, dihydrocapsaicin, nordihydrocapsaicin Deng product.
It is used to prepare capsorubin, capsicum jade from capsicum oleoresin or from its saponified middle separation the invention discloses one kind The Overcritical prepared chromatographic device of the compounds such as red pigment, beta carotene, capsaicine, dihydrocapsaicin, ascorbic acid.In device Contain:Liquid phase carbon dioxide storage tank (1), modifying agent storage tank (2), high-pressure pump (3), pump head cooler (4), high-pressure pump (5), interval Charging tank (6), Filter column (7), chromatographic column (8), on-line checking device (9), collector (10), Back pressure control valve (11), separator (12), airflow filtering device (13), condensation decompression except residual tank (14), adsorption column (15), compressor (16), gas-liquid surge tank (17), Pump head cooler (18), high-pressure pump (19).
As the carbon dioxide carrier of mobile phase, first from liquid phase carbon dioxide storage tank, (1) passed through pump head cooler (4) after precooling, the pressure of needs is gradually forced into using high-pressure pump (3), the pressure limit of the liquid CO 2 exported can In 8-100Mpa scopes.As needed, appropriate flow velocity is pressed to height from modifying agent storage tank (2) by an other high-pressure pump (5) Pressure carbon dioxide liquid is mixed into polarity modifier, and fluid-mixing enters interval charging tank (6) by valve, be previously added it is peppery The saponified mixing of green pepper oleoresin or capsicum oleoresin.Interval charging tank can be 1 group or more than 2 groups rotation chargings With dissolving circulation.Appropriate heating medium is passed through in charging tank chuck feed liquid in tank is heated to 35-80 DEG C, make carbon dioxide stream Body is in supercriticality.After capsicum oleoresin is dissolved into supercritical carbon dioxide, outlet valve is opened, feed liquid is passed through Cross Filter column (7) and enter the chromatographic column (8) for being filled with a diameter of 1-100 μm of solid sorbent particles afterwards, with appropriate flow velocity Separation is adsorbed and eluted, the chromatography under supercriticality is realized.According to the on-line checking device being arranged on after chromatographic column (9) scan data, cut chromatographic column end separated is collected by the period to corresponding collector (10), collector and its Mobile phase is in highdensity overcritical before Back pressure control valve (11), maintenance separator are provided between separator (12) afterwards State.Cut, which enters, depressurizes heating after separator, carbon dioxide removal equal solvent component just obtains corresponding product.In order to true The purity of product is protected, every kind of specific target product uses one group of special collector and separator.Separated through separator, dedusting Carbon dioxide by condensation decompression except residual tank (14) and adsorption column (15) purification etc. are after step, produced carbon dioxide tail gas Gas-liquid mixture phase is forced into through compressor (16), by gas-liquid surge tank (17), its liquid portion is through pump head cooler (18) The middle recycling of liquid phase carbon dioxide storage tank (1) is transported to by high-pressure pump (19) after cooling.
When the low polarity dye compound for being used to separate preparation high-purity using only the present apparatus, and misalign highly polar Capsaicin And highly polar ascorbic acid is when being finely divided, supercritical carbon dioxide fluid or and supercritical carbon dioxide can be only used Appropriate polarity modifier is pumped into simultaneously, to elute the dye compound for separating relatively low polarity.On a silica gel column, dye compound Capsorubin monomer, capsorubin monomer, zeaxanthin monomer, capsorubin mono fatty acid ester, capsorubin monoester fat Acid esters, beta carotene, capsorubin double acid ester, capsorubin double acid ester, zeaxanthin double acid ester etc. according to This elution, separation can be collected respectively.If the use of the saponification resultant of treated capsicum oleoresin being raw material, height can be prepared Capsorubin, capsorubin, zeaxanthin, beta carotene of purity etc..After dye compound collection is finished, silica gel is improved The temperature of post, and increase the ratio of polarity modifier, adding the soda acid additives such as phosphoric acid, triethanolamine if necessary can be faster Ground cleans up pillar, and Capsaicin and ascorbic acid are rich in eluent, can be long by a set product collector and separator Time, which collects, separates the eluent, produces colourless capsaicin mixed crystal.
While polarity spectrum very remote low polarity carotenoid pigment is produced in separation in needing to circulate in same first separation With in when highly polar amide-type Capsaicin compound and highly polar ascorbic acid or two class therein, gradient elution skill need to be applied Art.For example, in the column chromatography system that silica gel is stationary phase, first having on a small quantity with low polarity supercritical carbon dioxide fluid or addition The supercritical carbon dioxide fluid that solvent modified dose of machine is mobile phase, and elution separates carotenoid contained in capsicum oleoresin The dye compounds such as monomer, carotenoid ester and beta carotene.The flow velocity and temperature of control material, can be realized peppery substantially Green pepper red pigment monomer and its single (double) ester, capsorubin monomer and its single primary pigments chemical combination such as (double) ester and beta carotene It is prepared by the separation of thing.Pigment product separation prepare after the completion of, adjustment mobile phase in supercritical carbon dioxide and modifying agent flow velocity, Adjust the ratio of modifying agent and additive, or improve chromatographic column operating temperature, can smoothly separate the higher capsaicine of polarity, The compounds such as dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin and ascorbic acid.
Supercritical carbon dioxide polarity modifier used in the present invention can be water, methanol, ethanol, isopropanol, acetic acid second Ester, n-hexane, acetone, acetonitrile, tetrahydrofuran, ethylene glycol monomethyl ether, butyl glycol ether, petroleum ether, dichloromethane, chloroform, Carbon tetrachloride or their mixture.As needed, can add phosphoric acid, formic acid, acetic acid, trifluoroacetic acid, ammoniacal liquor, The acid-base property such as isopropylamine, triethanolamine compound improves mobile phase to highly polar soda acid compound, such as Vitamin C as additive Acid, eluting power.
Adsorbent stationary phase used in the present invention is the silica gel particle of silica gel particle or surface chemistry β-cyclodextrin, Can be alundum (Al2O3), activated carbon, magnesium silicate, polyamide, diatomaceous earth particle, or they are by the mixture of certain ratio. If it is necessary, the same or different chromatographic column that can connect, the component combination for once failing to separate continues to be passed through next section Chromatographic column carries out secondary separation.This technique can produce needs according to the separation of product, adjust the pressure of supercritical carbon dioxide And flow velocity, or the flow velocity and species of polarity modifier and additive are adjusted, or adjust filler composition, size, the string of chromatographic column The quantity and type of connection, mixing decolouring capsaicin, mixing de- peppery capsochrome or capsorubin (ester), capsicum can be prepared respectively The products such as rubine element (ester), beta carotene, kryptoxanthin (ester), zeaxanthin (ester), capsaicine, dihydrocapsaicin.This technique is pacified Overall height is imitated, and environmentally safe, operation temperature is low, and product bioactivity is not influenceed, and products obtained therefrom purity is high, without further adding Work is the level that can reach solvent-free or extremely low solvent.
It is an object of the invention to overcome conventional solvent extraction process, supercritical extraction process can not separate preparation high-purity Dye compound and the capsicums such as capsorubin, capsorubin, capsorubin fatty acid ester, capsorubin fatty acid ester The deficiency of the Capsaicin compound such as alkali, dihydrocapsaicin and nordihydrocapsaicin;The efficient liquid phase that solvent is mobile phase is overcome to prepare The high risk of chromatogram, overcome solvent process purification system products obtained therefrom still residual solvent the shortcomings of.The present invention provides a kind of Using the fluid of supercritical carbon dioxide or supercritical carbon dioxide as eluant, eluent, capsaicine is efficiently quickly completely separated With the method for capsicum red pigment.This method retains the advantage of supercritical extract, and opposed polarity is completely separated while can realize Product, the separating effect of the supercritical carbon dioxide separator greatly enhanced.Tail gas recycle and pressurized circulation system ensure that The economy of operating cost and the environment friendly of system.
Efficiently, environmentally safe, operation temperature is low, and product bioactivity is not influenceed, and products obtained therefrom is pure for this process safety Degree is high, the level without being processed further can reach solvent-free or extremely low solvent.
Brief description of the drawings
Two, this specification accompanying drawing, is half fed using single-throw batch can interval feed pattern and the rotation of double-throw batch can respectively The process chart of continuous preparation mode.The collection piece-rate system being made up of two groups of collectors and separator is only drawn in figure, it is real Border can be as needed when implementing, and mutually isostructural collection piece-rate system is extended to and can guarantee that various products are all preferably divided From the quantity required for purity.Wherein:
Fig. 1 --- the overcritical column chromatography of single channel batch (-type) prepares capsochrome Capsaicin process chart;
Fig. 2 --- the semicontinuous overcritical column chromatography of binary channels prepares capsochrome Capsaicin process chart.
Specific device title representated by the Arabic numerals marked in accompanying drawing is as follows:
1 --- liquid phase carbon dioxide storage tank,
2 --- modifying agent storage tank,
3 --- high-pressure pump,
4 --- pump head cooler,
5 --- high-pressure pump,
6 --- charging tank,
7 --- Filter column,
8 --- chromatographic column,
9 --- on-line checking device,
10 --- collector,
11 --- Back pressure control valve,
12 --- separator,
13 --- airflow filtering device,
14 --- condensation decompression removes residual tank,
15 --- adsorption column,
16 --- compressor,
17 --- gas-liquid surge tank,
18 --- pump head cooler,
19 --- high-pressure pump.
Embodiment
Embodiment 1:
The various pigments of separation are extracted as raw material, therefrom using the pigment green pepper extract that hoirzontally rotating organic solvent counter-current extraction is produced Compound.Total capsaicin content 0.08%, color value 235 in raw material.Filter column is using 20 μm of silica fillers, and its is a diameter of 100mm, column length 200mm, splitter is using 50 μm of silica fillers, diameter 200mm, column length 1800mm.It is activity to adsorb column packing Charcoal.Fractional composition, setting Detection wavelength 460nm are monitored using online UV-detector.Charging tank is provided with pre-heating system, chromatographic column Provided with temperature control and balance system.
Use single channel batch (-type) Supercritical fluid chromatography preparation technology.
This example mainly prepares solvent-free high-purity dye compound, for the dye compound of low polarity, passes through merely Supercritical carbon dioxide can elute separation, therefore can manufacture solvent-free high-purity capsochrome using this technique.Work as detection Device monitor target product completely by or according to predetermined ratio by detector after, start control at once, make mobile phase straight Connect from the bypass before charging tank and be passed directly into detector, target product is continued to bring corresponding collector into and after collector Lock out operation is performed in separator.It is automatic after setting 10min to recover post flowing, at the same detector outlet flow switch to it is new Collector.
The of a relatively high Capsaicin impurity of polarity is easily easier to and pigment separated by silica gel absorption.By the raw material used Capsaicin content is low, and Capsaicin is only collected as impurity and separated.In wash phase, CO 2 fluid gradient be pumped into 5%-10% without Water-ethanol, can receive the Capsaicin compound elution based on dihydrocapsaicin, capsaicine, nordihydrocapsaicin as accessory substance Collection.
The capsicum crude extract of the above-mentioned color values 235 of 900g is added into charging tank by charge pipe, will by high-pressure pump after sealing The boost in pressure of liquid CO 2 is warming up to 35 DEG C to 30MPa.Raw material is carried through pure supercritical carbon dioxide, with 200ml/ Min flow velocity carries out chromatography, and (time that switching runner leads directly to detector is not counted in it for timing since charging tank enters post In), 21 points monitored that first solute cut zeaxanthin dipalmitate passes through detector after 46 seconds, now, opened corresponding Collection channel, allows fluid to enter one group of collection-piece-rate system.24 points of 06 second first cuts by detector, now, are stood completely Carve and start control, allow mobile phase to be directly passed directly into detector from the bypass before charging tank, target product is continued to bring into accordingly Collector and lock out operation is performed from the separator after collector.It is automatic after 10min to recover post flowing, close first group Collection channel, while runner switches to new collector.
And then, second solute cut capsorubin dipalmitate (29 points and 27 seconds -33 points and 19 seconds) passes through detector, It is collected into second group of collection channel and separates in the separator.Operate according to this, the obvious solute group being collected into order Dividing is successively:The myristinate of capsorubin two (36 points and 02 second -38 points and 24 seconds), capsorubin lauric myristic ester (40 Points 25 seconds -43 points 04 second), capsorubin dilaurate (46 points and 10 seconds -49 points and 24 seconds), (51 point 14 of capsorubin dibasic acid esters Seconds -53 points 09 second), it is beta-cryptoxanthin monoesters (54 points and 24 seconds -55 points and 07 second), beta carotene (56 points and 22 seconds -58 points and 39 seconds), peppery Green pepper pigment monoesters (58 points 56 seconds -68 points 35 seconds, be consecutively detected 6 groups of mixing solute components, it is unified to collect separation, mainly by peppery Green pepper red pigment, zeaxanthin, capsorubin monoesters composition), beta-cryptoxanthin (69 points and 13 seconds -70 points and 17 seconds), (72 points of hidden capsanthin 00 second -72 points 49 seconds), zeaxanthin (73 points and 25 seconds -74 points and 24 seconds), capsorubin (76 points and 21 seconds -77 points and 12 seconds), violaxanthin (79 points 51 seconds 81 points 06 second), capsorubin (82 points and 43 seconds -83 points and 24 seconds).
The isolated capsorubin monomer of capsorubin weighs 4.8 grams, and HPLC measures purity and reaches 97.8%.Capsicum 5.6 grams of red pigment monomer, HPLC purity reaches 97.5%.Due to not using solvent, so separated product is solvent-free The product of residual.
Complete after main component separation, synchronously supplied into supercritical carbon dioxide fluid by high-pressure pump 50ml/min without Water-ethanol is polarity modifier, and Filter column, chromatogram column temperature are increased to 60 DEG C, coordinate supercritical carbon dioxide to follow system Ring cleans 120min.The solute of this cleaning process elution is collected separately and separated, and resulting product can be used as carrying after merging Ascorbic acid and polyphenol is taken to be used.120min cleans wax-like filtrate 132.6g before oily gleanings 302.1g, Filter column, filtering Post weightening 160.2g.
In separation process, separator temperature is set as 50 DEG C, pressure 5-8MPa.Under the conditions of in this, product and dioxy Change carbon separation, mouth releases product under separator, carbon dioxide then subtracts from separator adjusted valve suitable for reading, filter into condensation Pressure removes residual tank, adjusts its temperature to -10 DEG C, pressure is 0.5-1MPa, and the solvent of carbon dioxide and residual is separated, then leads to Solvent micro in adsorption column absorbing carbon dioxide is crossed, clean carbon dioxide is obtained and is liquefied by compressor compresses, uses high pressure Pump is transmitted back to storage tank recycling.
Each pigment products weight and purity are as shown in the table:
Embodiment 2:
Capsicum crude extract (capsaicin content 10%, color value 62) that 20Kg flat rotary extractor counter-current extractions are obtained with 20Kg50% ethanol/waters are mixed, and heating saponification is carried out to it with 4Kg10% sodium hydroxides, and saponification temperature is controlled at 40-60 DEG C, Cooling and standings after saponification 1-2h, isolated upper strata saponification resultant 2.6Kg.It is super using binary channels using this saponification resultant as raw material Critical fluids column chromatography preparation system (Fig. 2) continuously prepares high-purity capsochrome and Capsaicin.
The above-mentioned saponification resultants of 1Kg are put into one group of interval charging tank, chromatographic column filler is 50 μm of silica gel particles, adsorption column Filler is activated carbon.By charging tank temperature adjustment to 32 DEG C, pressure brings up to 28MPa, and raw material is dissolved by supercritical carbon dioxide Chromatographic column is carried along into, column temperature is set as 35 DEG C, and regulation chromatogram column pressure is 25MPa.Flow rate of mobile phase is set as 200ml/ min.Meter was recorded the post separation time and (rejects the time that midway switching runner collects product) since being opened the valve after charging tank. Using UV absorption spectrum detectors, separation prepares pigment stage default absorbing wavelength 460nm.When detector monitors to target product Completely by or according to predetermined ratio by detector after, start control at once, allow mobile phase directly from the side before charging tank Road is passed directly into detector, and target product is continued to bring corresponding collector into and separation is performed from the separator after collector Operation.It is automatic after 10min to recover post flowing, while detector outlet flow switches to new collector.
In separation process, separator temperature is set as 50 DEG C, pressure 5-8MPa.Under the conditions of in this, product and dioxy Change carbon separation, mouth releases product under separator, carbon dioxide then subtracts from separator adjusted valve suitable for reading, filter into condensation Pressure removes residual tank, adjusts its temperature to -10 DEG C, pressure is 0.5-1MPa, and the solvent of carbon dioxide and residual is separated, then leads to Solvent micro in adsorption column absorbing carbon dioxide is crossed, clean carbon dioxide is obtained and is liquefied by compressor compresses, uses high pressure Pump is transmitted back to storage tank recycling.
It is beta carotene (26 points and 12 seconds -28 points and 09 second) to take the lead in by detector, passes through one group of collector, separator Collect and separate.It is more obvious due to distinguishing, determine beta carotene purity through HPLC and reach 98.1%, impurity is cis Beta carotene.
After one substantially and is clearly spaced, high-purity beta-cryptoxanthin (33 points and 14 seconds -35 points and 16 seconds) is separated Come, determining beta carotene purity through HPLC reaches 99.1%.
Be subsequently isolated out is the hidden capsanthin (36 points and 05 second -36 points and 31 seconds) of relatively small amount.
Then what is separated is zeaxanthin (38 points and 26 seconds -41 points and 02 second), and purity is 96%.
Next what is separated is a small amount of mutatoxanthin (42 points and 21 seconds -43 points and 04 second), (43 point 46 of cis capsorubin Seconds -44 points 19 seconds), antheraxanthin (44 points and 31 seconds -45 points and 09 second).
Then pass through detector is relative amount highest capsorubin (46 points and 7 seconds -48 points and 55 seconds), and HPLC purity is high Up to 98.2%, impurity is a small amount of epoxy capsorubin.
Subsequent pass through detector is violaxanthin (50 points and 02 second -50 points and 57 seconds), (51 point 30 of capsorubin respectively Seconds -52 points 11 seconds).
So far, high-purity is separated without residual molten series capsicum pigment product.
Capsaicine series compound is adsorbed on a silica gel column, because polarity is higher, it is difficult to be washed by supercritical carbon dioxide It is de-.So, 20ml/min absolute ethyl alcohols are next added in mobile phase and improve the polarity of mobile phase, to elute prepare it is peppery Green pepper alkali product.The measure wavelength of UV detectors is adjusted to 280nm.
Dihydrocapsaicin 71 points 16 seconds -73 points pass through detector within 24 seconds.Followed by capsaicine (76 points 12 seconds -81 points 09 Second) and nordihydrocapsaicin (83 points and 12 seconds -84 points and 52 seconds).Separating degree is excellent.
The collection method in this stage is identical with the first stage.After monitoring that target product flows completely through detector, cut Change of current road, allows mobile phase to be passed directly into detector from the bypass before charging tank, and target product is continued to bring corresponding collector into And lock out operation is performed from the separator after collector.It is automatic after 10min to recover post flowing, while detector outlet flow Switch to new collector.
After the separation of first 1kg raw material is finished, the same flowing phase composition of maintenance and flow velocity (200ml/min overcritical two Carbonoxide and 20ml/min absolute ethyl alcohols), rise column temperature to 60 DEG C, purging system.Cleaning fluid through same collection separation process, Extract first separation thing per 30min to weigh, second is to be washed out without new material.29 grams of solid powder is recovered to altogether.Through Determine regenerant and mainly contain ascorbic acid, polyphenol and a small amount of capsaicine.
During cleaning systems, in the interval charging tank that another 1Kg raw material is put into another group of independence.Cleaning is finished Afterwards, column temperature is recovered to normal temperature, stops absolute ethyl alcohol high-pressure pump, and by supercritical carbon dioxide switch to it is corresponding feed intake it is logical Road, the measure wavelength of UV detectors is adjusted to 460nm, and second batch separation preparation is started using identical chromatographic condition.
The same zero point that the time for opening charging tank outlet valve is set as to this batch-wise chromatography disengaging time.
Beta carotene (26 points and 29 seconds -28 points and 18 seconds), beta-cryptoxanthin (33 points and 28 seconds -35 points and 33 seconds), hidden capsanthin (36 Points 21 seconds -36 points 48 seconds), zeaxanthin (38 points and 42 seconds -41 points and 20 seconds), mutatoxanthin (42 points and 38 seconds -43 points and 20 seconds), Cis capsorubin (44 points and 00 second -44 points and 34 seconds), antheraxanthin (44 points and 47 seconds -45 points and 26 seconds), (46 points of capsorubin 23 seconds -49 points 11 seconds), violaxanthin (50 points and 18 seconds -51 points and 13 seconds), capsorubin (51 points and 47 seconds -52 points and 29 seconds) lead to according to this Cross detector and collect and separate.
Then, the measure wavelength of UV detectors is adjusted to 280nm.With 20ml/min flow velocity in supercritical carbon dioxide Add absolute ethyl alcohol.
Dihydrocapsaicin (73 points and 26 seconds -75 points and 35 seconds), capsaicine (78 points and 23 seconds -83 points and 17 seconds), nordihydrocapsaicin (85 points 21 seconds -87 points 03 second) collect separation successively.
Continuous operation two batches separation prepare obtained by products weight be respectively:

Claims (11)

1. a kind of method that supercritical fluid pillar layer separation prepares capsochrome Capsaicin, it is characterized in that:By liquid carbon dioxide Premixed according to a certain percentage by high-pressure pump respectively with polarity modifier after precooling, heating is forced into after specific supercriticality It is miscible with the capsicum oleoresin or its saponification resultant that are previously added charging tank, the system of filled solid sorbent particles is passed through after filtering Standby type chromatographic column carries out mass transfer separation;Controlled at once after each or each group of target components flow completely through on-line checking device super Critical fluids are passed directly into detector from the bypass before feeder, will be loaded into corresponding receive by the target components of detector Storage, then realizes the separation of target components and carbon dioxide equal solvent in connected separator;Carbon dioxide tail gas passes through Liquid, which is compressed into, after dust removal by filtration, the de- liquid of condensation and absorption column purification returns to storage tank recycling.
Contain 2. prepared by a kind of supercritical fluid pillar layer separation in capsochrome Capsaicin process unit, device:Liquid phase titanium dioxide Carbon storage tank, modifying agent storage tank, high-pressure pump, pump head cooler, high-pressure pump, interval charging tank, Filter column, chromatographic column, on-line checking Device, collector, Back pressure control valve, separator, airflow filtering device, condensation decompression are except residual tank, adsorption column, compressor, gas-liquid buffering Tank, pump head cooler, high-pressure pump.
3. a kind of supercritical fluid pillar layer separation prepares capsochrome Capsaicin process unit, it is characterized in that:Device, which contains, to be used for One or more groups of feeding systems that interval feeds intake, when interval charging tank reaches more than two, can use the interval without shutting down Charging-continuous separating operation pattern, rotation feeds between different charging tanks, maintains supercritical fluid persistent loop.
4. a kind of supercritical fluid pillar layer separation prepares capsochrome Capsaicin process unit, it is characterized in that:Charging tank work pressure Power is 8-100MPa, and chuck heating-up temperature is controllable.
5. a kind of supercritical fluid pillar layer separation prepares capsochrome Capsaicin process unit, it is characterized in that:Contain many logical detections Device, detector is constructively at least up to three-dimensional intercommunication, directly can directly to be led from the supercritical fluid passage before feeder Enter to be free of the supercritical fluid of solute, stop that in the state of flowing detection will be had passed through in the supercritical fluid for leading to chromatographic column The target fraction of device is controllably collected into appropriate collector.
6. a kind of method that supercritical fluid pillar layer separation prepares capsochrome Capsaicin, with supercritical carbon dioxide fluid or with Supercritical carbon dioxide is main body, and the fluid-mixing for adding a certain proportion of polarity modifier is eluant, eluent.
7. a kind of method that supercritical fluid pillar layer separation prepares capsochrome Capsaicin, used polar modifier of mobile phase Can be water, methanol, ethanol, isopropanol, ethyl acetate, n-hexane, acetone, acetonitrile, tetrahydrofuran, ethylene glycol monomethyl ether, second two Alcohol butyl ether, petroleum ether, dichloromethane, chloroform, carbon tetrachloride or their mixture.As needed, Ke Yitian Phosphorate the acid-base property compound such as acid, formic acid, acetic acid, trifluoroacetic acid, ammoniacal liquor, isopropylamine, triethanolamine.
8. a kind of supercritical fluid pillar layer separation prepares capsochrome Capsaicin process unit, used adsorbent stationary phase is Silica gel particle or alundum (Al2O3), activated carbon, magnesium silicate, the polyamides of silica gel particle or surface chemistry β-cyclodextrin Amine, diatomaceous earth particle, or they are by the mixture of certain ratio.
9. a kind of supercritical fluid pillar layer separation prepares capsochrome Capsaicin process unit, its piece-rate system is according to detector Signal performs operation, and the mobile phase of solute will not be carried at once from charging tank detecting after target product flows completely through detector Preceding bypass is passed directly into detector, brings target product into piece-rate system.
10. a kind of supercritical fluid pillar layer separation prepares capsochrome Capsaicin process unit, in each group of collector and separation Back pressure control valve is set between device, and the operating pressure before maintaining separator is on the critical pressure of carbon dioxide.
11. a kind of supercritical fluid pillar layer separation prepares capsochrome Capsaicin process unit, after charging tank, chromatographic column it It is preceding to be provided with replaceable filtering.
CN201710445174.2A 2017-06-02 2017-06-02 Supercritical fluid column chromatography prepares the method and device of high-purity capsochrome Capsaicin Pending CN107163618A (en)

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