CN109678981A - A kind of preparation method of safflower polysaccharide, product and application - Google Patents

A kind of preparation method of safflower polysaccharide, product and application Download PDF

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CN109678981A
CN109678981A CN201811547397.0A CN201811547397A CN109678981A CN 109678981 A CN109678981 A CN 109678981A CN 201811547397 A CN201811547397 A CN 201811547397A CN 109678981 A CN109678981 A CN 109678981A
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safflower
safflower polysaccharide
preparation
polysaccharide
sephadex
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CN109678981B (en
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叶天健
蔡犇
张巍
卢敏
陈勇灵
解卓奇
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Zhejiang Yongning Pharmaceutical Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0003General processes for their isolation or fractionation, e.g. purification or extraction from biomass
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/125Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives containing carbohydrate syrups; containing sugars; containing sugar alcohols; containing starch hydrolysates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/70Carbohydrates; Sugars; Derivatives thereof
    • A61K31/715Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P37/00Drugs for immunological or allergic disorders
    • A61P37/02Immunomodulators
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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Abstract

The invention discloses a kind of methods for preparing safflower polysaccharide, product and application thereof, method is the following steps are included: safflower is extracted through hot water, low temperature sedimentation, filtering, polar macroporous resin removes general flavone and carthamin, and Thick many candies concentrate low temperature alcohol precipitation precipitates the freeze thawing that is dissolved in water, centrifugation, high-content safflower polysaccharide is obtained through sephadex purifies and separates again, is finally freeze-dried to obtain white powder.It is 85.0%~99.8% with ultraviolet spectrophotometry (phend-sulphuric acid) measurement polyoses content.Present invention process is simple, easily operated, is suitble to industrialized production, gained safflower polysaccharide content is high, it can be developed into drug and health food, immune correlated disease treatment be used for as immunomodulator, also can be used for improving sub-health population and receive the immunity of chemicotherapy cancer patient.

Description

A kind of preparation method of safflower polysaccharide, product and application
Technical field
The invention belongs to technical field of natural product extraction more particularly to a kind of method for preparing safflower polysaccharide, product and The purposes of the safflower polysaccharide.
Background technique
Safflower is the dry tubular flower of compositae plant safflower, and property is pungent, warm, has activating microcirculation and removing stasis medicinal, and inducing meastruation to relieve menalgia effect is faced Bed is very widely used.Safflower complex chemical composition mainly contains carthamin yellow, safflower polysaccharide, flavones, organic acid, safflower Haematochrome, polyphenol, amino acid etc.." new safflower 7 " is the medicinal white safflower of few thorn of industrial crops institute, Xinjiang academy of agricultural sciences breeding New varieties, the kind safflower polysaccharide and general flavone content are the several times of common safflower or more.The study found that safflower polysaccharide has The pharmacological actions such as anti-oxidant, immunological regulation, anticancer, to mouse sarcoma S180cell, mouse LA795 lung carcinoma cell, human liver cancer SMMC-7721 cell, human breast carcinoma MC-7 cell, Human gastric cancer SGC-7901 cells have good inhibiting effect [new referring to horse Rich " Chongqing Medical " the 3rd phase " safflower polysaccharide extraction process and suppression cancer Advance on Pharmacological Activities " of volume 43 in 2014].
Currently, the method for extracting safflower polysaccharide mostly uses greatly water extraction and alcohol precipitation method to obtain Thick many candies, then removed using Sevage method Albumen, hydrogen peroxide decoloration, acetone and ether the serial of methods such as repeatedly wash, dry and being purified, and obtain safflower polysaccharide.It should Purification process there are complex process, organic reagent type consume more it is big and mostly inflammable and explosive substances, high production cost, can not be suitble to The shortcoming such as industrialized production, obtained safflower polysaccharide are multicomponent mixture, and color is in yellowish-brown, and content is lower, organic solvent Residual is high.Therefore, the drug or health care product that there is no the fine work safflower polysaccharide based on high-content to prepare at present.
Summary of the invention
To overcome problem above, the present invention provides a kind of method (or extracting method) for preparing safflower polysaccharide, this method Advantages of simple, environmentally protective, operation is continuous high-efficient, and production cost is low, and obtained product composition is uniform, and content is high, and raw material It is resourceful, it is suitable for industrialized production.
The present invention also provides a kind of products of safflower polysaccharide prepared by the above method, and the product composition is uniform, Content is high, no solvent residue.
The present invention additionally provides simultaneously a kind of to be controlled by what above-mentioned safflower polysaccharide product was prepared for immune correlated disease The drug and health care product for the treatment of.
A kind of preparation method of safflower polysaccharide, includes the following steps:
(1) safflower is placed in extractant, soak extraction obtains extracting solution;
(2) obtained extracting solution is removed flavonoids impurity and decolourized, collection penetrates by macroporous resin adsorption Liquid;
(3) liquid concentration will be penetrated, alcohol is added into concentrate, stands alcohol precipitation, separation of solid and liquid obtains solid material;
(4) it is dissolved in water into obtained solid material, low temperature carries out lower freeze thawing centrifugation;
(5) control centrifugate concentration is isolated and purified within the scope of 200mg/mL~600mg/mL with sephadex, Obtain safflower polysaccharide purified product.
In the preferred embodiment of preparation method of the invention, in step (1), the extractant is water, further excellent It is selected as ultrapure water, 0~50% methanol-water (i.e. wherein the concentration of volume percent of methanol is 0~50%), 0~50% ethanol water. Extracting temperature is controlled at 60 DEG C~100 DEG C, is extracted 2~3 times, 0.5~12 hour every time, amount of water was the 10~30 of crude drug weight Times;After the completion of extraction, combined extract, in 2 DEG C~15 DEG C sedimentations, 4~24 hours removing insoluble impurities, then through liquid cross-flow Membrane microfiltration system refined filtration, obtains final extracting solution.
In the preferred embodiment of preparation method of the invention, the macroreticular resin non-polar absorbent macroreticular resin (ratio Such as X-5 non-polar absorbent macroreticular resin, H103 non-polar absorbent macroreticular resin, HPD100 non-polar absorbent macroreticular resin), in Isopolarity macroporous absorbent resin (such as HPD400 macroporous absorbent resin, ADS-8 macroporous absorbent resin, ADS-17 macroporous absorption tree Rouge etc.), polar macroporous adsorption resin.More preferably polar macroporous adsorption resin, the polar macroporous adsorption resin, which refers to, to be contained Amide groups, cyano, phenolic hydroxyl group etc. be nitrogenous, the absorption resin of oxygen, sulphur polar functionalities base, and including but not limited to NKA-2 is polar macroporous Adsorb one of resin, NKA-9 polar resin, S-8 polar macroporous adsorption resin, HPD600 polar macroporous adsorption resin etc. or It is a variety of.Or other are suitable for isolated resin (such as the Shanghai Xun Erization of flavones, Polyphenols, Anthraquinones, alkaloid compound The plant extract of model XR981, H01S, H06S, XR920D of the sale of work Science and Technology Ltd. are resin dedicated)
In the preferred embodiment of preparation method of the invention, in step (3), will penetrate that liquid is concentrated into original volume 1/ 4~1/40;The mass percent concentration that concentrate adds alcohol to system alcohol is 75%~95%, latter 2 DEG C~8 DEG C standing alcohol precipitations 1~ 18 hours.The separation of solid and liquid can filter, filter, be filtered under diminished pressure etc. modes using room temperature.In the step, it is separated by solid-liquid separation The liquids recovery arrived alcoholic solvent therein, or can also be recycled directly as alcoholic solvent.
In the preferred embodiment of preparation method of the invention, it is to receive that liquid method for concentration is penetrated described in step (3) Filter membrane concentration, scraper plate concentration, the concentration of mechanical steam recompression technology (MVR) low temperature, more preferably MVR low temperature are concentrated.It is dense Alcohol added by contracting liquid is high concentration methanol, ethyl alcohol and other alcohol, more preferably 95% ethyl alcohol or dehydrated alcohol.
In the preferred embodiment of preparation method of the invention, in step (4), freeze thawing temperature is -30 DEG C~0 DEG C, more Preferably -20 DEG C, the freeze thawing time is 2~48 hours, more preferably 12~24 hours.Centrifugal condition is preferred are as follows: revolving speed is high In 4000r/pm, time 25min or more.
In the preferred embodiment of preparation method of the invention, centrifugate concentration described in step 5) is 200mg/mL ~600mg/mL, more preferably 300mg/mL~400mg/mL.Preferably, when being isolated and purified with sephadex, on Sample volume accounts for the 2%~30% of gel column volume, more preferably 10%~20%, and eluent is water.
In the preferred embodiment of preparation method of the invention, sephadex be preferably Sephadex LH-20, Sephadex G25,Sephadex G50,Sephadex G75.More preferably Sephadex LH-20, Sephadex G50, Gel column ratio of height to diameter is 2:1~6:1.Eluent is preferably ultrapure water.
After purification by sephadex, eluent is collected, concentrated, vacuum freeze drying obtains purification safflower polysaccharide, For white powder.It is 85.0%~99.8% with ultraviolet spectrophotometry (phend-sulphuric acid) measurement polyoses content.
In the present invention, the safflower is composite family safflower or new varieties white safflower, more preferably white safflower.Using It when white safflower is raw material, is monitored by electric conductivity detector and UV detector, can collect 2 fraction eluents, concentrated, Vacuum freeze drying, the safflower polysaccharide purified product of available two kinds of one-components: safflower polysaccharide A and safflower polysaccharide B, safflower The content of polysaccharide is 90% or more.
The preparation method of a kind of safflower polysaccharide, the safflower polysaccharide as described in any of the above-described technical solution is prepared.
Preferably, including safflower polysaccharide A and safflower polysaccharide B in the safflower polysaccharide, two mass ratioes are 1:1~2; Further preferably 1:1.4~1.6.
Preferably, the relative molecular mass of safflower polysaccharide A is 8000~10000, the relative molecular mass of safflower polysaccharide B It is 4000~6000.Further preferably the relative molecular mass of safflower polysaccharide A is 9400 or so, opposite point of safflower polysaccharide B Protonatomic mass is 5900 or so.
Preferably, safflower polysaccharide A is by 6 kinds of rhamnose, arabinose, glucose, galactolipin, xylose, mannose monosaccharide One of or a variety of compositions;As further preferred, the safflower polysaccharide A is by rhamnose, arabinose, glucose, gala 6 kinds of sugar, xylose, mannose monosaccharide are formed with beta chain connection;Preferably, safflower polysaccharide B is by arabinose, glucose, gala One of 4 kinds of sugar, rhamnose monosaccharide or a variety of compositions;As further preferred, the safflower polysaccharide B is by arabinose, Portugal 4 kinds of grape sugar, galactolipin, rhamnose monosaccharide are formed with beta chain connection.
A kind of drug and health care product for immune correlated disease treatment, containing treating or preventing, immune correlated disease is effective Safflower polysaccharide described in claims 1 of amount and combinations thereof and pharmaceutical carrier.The pharmaceutical carrier include but It is not limited to auxiliary agent, adjuvant, moulding agent, flavoring agent etc..
Drug and health care product for immune correlated disease treatment of the invention can be made into oral preparation, ejection preparation.
Safflower polysaccharide prepared by the present invention has following function:
Turn experiment from external leaching and show that safflower polysaccharide and T cell mitogenesis original ConA have synergistic effect, to B cell Mitogenesis original has no significant effect.But internal PFC test, safflower polysaccharide act on the astragalus polyose of B cell with being generally acknowledged that Effect trend is consistent.Different to the time of mouse injection safflower polysaccharide, the variation of mouse PFC value is also different: administration group after sensitization PFC be promoted, and the PFC of administration group is counter before sensitization is suppressed.Show that safflower polysaccharide also shows that the two-way of immune drug Property.Safflower polysaccharide can obviously fight the immunosuppressive action of prednisolone, it inhibits the Immune-enhancing effect of mouse to make prednisolone With relatively being become apparent to the effect of normal mouse.Therefore, safflower polysaccharide can promote lymphocyte transformation, and it is red to sheep to increase splenocyte The cell number of cell plaque test fights the immunosuppressive action etc. of prednisolone.Safflower polysaccharide constituents can pass through " lFN- LL-NKC " network, inductive formation interferon, by adjusting cytokine network, T cell network, organism endocrine immunological network, To enhance the immune function of body.Therefore, safflower polysaccharide can be used as immunomodulator and be used for immune correlated disease treatment.
The invention has the following advantages:
Present invention process is simple, easily operated, is suitble to industrialized production, and gained safflower polysaccharide content is high, can be developed into medicine Product and health food are used for immune correlated disease treatment as immunomodulator, also can be used for improving sub-health population and connect By the immunity of chemicotherapy cancer patient.
The present invention can use medicinal white safflower new varieties " new safflower 7 " for raw material, and the variety source is abundant, and red Flower polyoses content is the several times of common safflower or more, ensure that the purity and entirety yield of final products from source.
Preparation method provided by the invention use extensive membrane microfiltration, the absorption of macroreticular resin specificity and directional separation, The efficient isolation and purification methods such as sephadex purification, products obtained therefrom safflower polysaccharide content are 85.0%~99.8%, are ensured The disadvantages of curative effect of product, reproducibility is good, overcomes low prior art safflower polysaccharide recovery rate, poor reproducibility, it is important It is easy to carry and use, and activity is better than safflower decocting liquid.
Present invention employs the preparation processes such as the concentration of low energy consumption MVR low temperature, alcohol precipitation freeze thawing, freeze-drying, avoid existing Effective component structure change caused by technology high temperature condition, loss and the reduction of physiological activity, products obtained therefrom quality are stablized, It is easy to be mass produced.
Specific embodiment
In order to keep objects and advantages of the present invention more explicit, the present invention is carried out with reference to embodiments further It illustrates.It should be understood that the specific embodiments described herein are merely illustrative of the present invention, the protection being not intended to restrict the invention Range.
Safflower polysaccharide assay uses Phenol sulfuric acid procedure, is first hydrolyzed into monosaccharide under the action of sulfuric acid using polysaccharide, and Rapid dehydration generates alditol derivative, then generates orange-yellow compound with phenol.
A) preparation of glucose standards solution:
The preparation of glucose standards solution: precision weighs 105 DEG C of dryings to the DEXTROSE ANHYDROUS 10.71mg of constant weight, is placed in In 100mL measuring bottle, scale is settled to distilled water, is configured to the stock solution of 107.1 μ g/mL.It is accurate from stock solution to draw 0.1,0.2,0.4,0.6,0.8,1.0mL glucose solution is added on respectively in the tool plug test tube of 20mL, and adds distilled water to mend respectively To 2.0mL, it is configured to Glucose standards serial solution.2.0mL distilled water is taken to return to zero as blank.
B) drafting of standard curve
5% phenol solution 1.0mL is added into Glucose standards serial solution and distilled water, mixes, then rapidly along pipe The 5.0mL concentrated sulfuric acid is added in wall, shakes up, and seals, and boiling water bath heats 15min, room temperature is rapidly cooled in ice-water bath, in absorption maximum Absorbance is measured at wavelength 490nm, with absorbance (A) for ordinate, is with glucose standards solution mass concentration (C, μ g/mL) Abscissa draws standard curve, and obtaining regression equation is y=0.0134x-0.0113, R2=0.9992.
C) measurement of the polysaccharide content in sample
Precision weighs refined polysaccharide 10mg, and constant volume shakes up to obtain sample liquid in 10mL measuring bottle.Above-mentioned solution is drawn again 2.0mL is settled to 20mL.Analyte sample fluid 1.0mL is drawn, distilled water is mended to 2mL, surveys its suction by method prepared by standard curve Shading value substitutes into regression equation, obtains glucose mass concentration (μ g/mL).The mass fraction of polysaccharide is calculated as follows:
Glucose mass concentration × extension rate ÷ sample quality in mass fraction of polysaccharide %=polysaccharide
Embodiment 1:
The water of 10 times of weight is added in extracting waste safflower 500g, and 60 DEG C of stirrings are lower to impregnate 2h, filtration, the dregs of a decoction 8 times of weight of addition Water, 60 DEG C of stirrings are lower to impregnate 1h, filters out the dregs of a decoction, combined extract about 8.1L.5 DEG C of sedimentation 6h of extracting solution, take supernatant through liquid The filtering of body cross-flow membrane microfiltration systems.Filtrate flows through polar macroporous adsorption resin (column volume the 1200mL) (Shanghai XR920D Xun Erization Work Science and Technology Ltd.), it collects safflower polysaccharide and penetrates liquid about 8.6L (eluant, eluent is water).It is concentrated (using MVR low temperature to penetrate liquid Concentration) to about 300mL, 95% ethyl alcohol 3000mL, 4 DEG C of sealing and standing 12h are added with stirring, suction filtration obtains safflower polysaccharide precipitating 88.2g filtrate recycling ethanol.Polysaccharide precipitation add 220mL water dissolve, -20 DEG C freeze thawing 12 hours, be centrifuged off albumen (revolving speed 4500r/pm, time 30min).It is pure to cross Sephadex LH-20 sephadex in 400mg/mL or so for the control of centrifugate concentration To change (loading volume account for gel column volume 10%), gel column ratio of height to diameter is 4:1, elution safflower polysaccharide component is taken water as a solvent, 2 different fractions eluents are collected (to detect by electric conductivity detector and UV detector, collect the red of two different components respectively Flower polysaccharide), concentrated, vacuum freeze drying must refine safflower polysaccharide A12.1g and safflower polysaccharide B 18.0g, total recovery respectively It is 6.02%.It is measured with spectrophotometry, content is respectively 93.60% and 92.75%.
Embodiment 2:
The water of 12 times of weight is added in extracting waste safflower 500g, and 100 DEG C of stirrings are lower to impregnate 2h, filtration, the dregs of a decoction 10 times of weights of addition The water of amount, 100 DEG C of stirrings are lower to impregnate 1h, filters out the dregs of a decoction, combined extract about 10.5L.5 DEG C of sedimentation 6h of extracting solution, take supernatant It is filtered through liquid cross-flow membrane microfiltration systems.Filtrate flows through polar macroporous adsorption resin (column volume 1200mL), and (Shanghai XR920D is inferior That Chemical Industry Science Co., Ltd) (eluant, eluent is water), it collects safflower polysaccharide and penetrates liquid about 11L.It is concentrated (using MVR to penetrate liquid Low temperature concentration) to about 400mL, 95% ethyl alcohol 4000mL, 4 DEG C of sealing and standing 16h are added with stirring, it is heavy that suction filtration obtains safflower polysaccharide Shallow lake 96.5g, filtrate recycling ethanol.Polysaccharide precipitation add 300mL water dissolve, -10 DEG C freeze thawing 24 hours, be centrifuged off albumen (revolving speed 5000r/pm, time 30min).It is pure to cross Sephadex LH-20 sephadex in 300mg/mL or so for the control of centrifugate concentration To change (loading volume account for gel column volume 20%), gel column ratio of height to diameter is 5:1, elution safflower polysaccharide component is taken water as a solvent, 2 different fractions eluents are collected (to detect by electric conductivity detector and UV detector, collect the red of two different components respectively Flower polysaccharide), concentrated, vacuum freeze drying must refine safflower polysaccharide A13.5g and safflower polysaccharide B 20.3g, total recovery respectively It is 6.76%.It is measured with spectrophotometry, content is respectively 91.92% and 91.39%.
Safflower polysaccharide A and the detection of safflower polysaccharide B structure:
Gel permeation chromatography (size exclusion chromatography) method measures its relative molecular mass:
1, chromatographic condition chromatographic column: TSK-GELG4000PWXLColumn (300mm × 7.8mm, 10 μm);Mobile phase: ultrapure water; Column temperature: 30 DEG C;Detector: differential refraction detector (RID), 30 DEG C of detector temperature;Flow velocity: 0.5mLmin-1;Sample introduction body Product: 10 μ L.
2, the production of standard curve takes the glucan pair of known relative molecular mass (relative molecular weight is 2000~50000) According to product, respectively plus ultrapure water is made solution of every 1mL containing 1mg, cross 0.45 μm of miillpore filter to get.With reference substance molecular weight (MW) standard curve is made in the retention time (tR) of logarithm corresponding thereto.
3, safflower polysaccharide is made into 1mgmL with distilled water by the measurement of molecular weight analyte respectively-1Solution, cross 0.45 μm it is micro- Hole filter membrane, sample introduction is analyzed under chromatographic condition, records retention time, substitutes into the relative molecular mass that regression equation seeks each component. As a result the relative molecular mass of safflower polysaccharide A is 9400 or so, and the relative molecular mass of safflower polysaccharide B is 5900 or so.
Derivative GC method is formed to its monosaccharide and structure parses:
1, chromatographic condition chromatographic column: HP-5 (30m × 0.32mm);Temperature programming:
100℃(5℃·min-1)→190℃(4℃·min-1)→240℃(5min);Carrier gas: high pure nitrogen;Sample injector Temperature: 260 DEG C;Input mode: it shunts;Detector: FID;Injector temperature: 250 DEG C.
2, the preparation of the sugared nitrile acetic ester derivative of monosaccharide reference substance and Polysaccharides accurately weigh L- rhamnose, L- I Uncle's sugar, D- xylose, D-MANNOSE, D-Glucose, 6 kinds of standard monosaccharide of D- galactolipin and 2 kinds of polysaccharide sample 10mg hydrolyzed, respectively It is put into tool plug test tube, hydroxylamine hydrochloride 10mg and internal standard 7mg is added, anhydrous pyridine lmL is added, is put into 90 DEG C of water-baths and heats 30min simultaneously vibrates, and room temperature is cooled to after taking-up, and acetic anhydride acid anhydride lmL is added, and the reaction was continued at 90 DEG C, and 30min carries out acetylation, Sample introduction after chloroform extraction.
As the result is shown safflower polysaccharide A by 6 kinds of rhamnose, arabinose, glucose, galactolipin, xylose, mannose monosaccharide with Beta chain connection composition;Safflower polysaccharide B is made of 4 kinds of arabinose, glucose, galactolipin, rhamnose monosaccharide with beta chain connection.

Claims (10)

1. a kind of preparation method of safflower polysaccharide, which comprises the steps of:
(1) safflower is placed in extractant, soak extraction obtains extracting solution;
(2) obtained extracting solution is removed flavonoids impurity and decolourized, collection penetrates liquid by macroporous resin adsorption;
(3) liquid concentration will be penetrated, alcohol is added into concentrate, stands alcohol precipitation, separation of solid and liquid obtains solid material;
(4) it is dissolved in water into obtained solid material, low temperature carries out lower freeze thawing centrifugation;
(5) control centrifugate concentration is isolated and purified with sephadex, is obtained within the scope of 200mg/mL~600mg/mL Safflower polysaccharide purified product.
2. the preparation method of safflower polysaccharide according to claim 1, which is characterized in that in step (1), the extractant is Water, 0~50% methanol-water, 0~50% ethanol water, Extracting temperature are controlled at 60 DEG C~100 DEG C, extract 2~3 times, every time 0.5~ 12 hours, amount of water was 10~30 times of crude drug weight;After the completion of extraction, combined extract settles 4~24 in 2 DEG C~15 DEG C Hour removes insoluble impurities, then through liquid cross-flow membrane microfiltration systems refined filtration, obtains final extracting solution.
3. the preparation method of safflower polysaccharide according to claim 1, which is characterized in that the macroreticular resin non-polar absorbent Macroreticular resin, middle polarity macroporous absorbent resin, polar macroporous adsorption resin.
4. the preparation method of safflower polysaccharide according to claim 1, which is characterized in that in step (3), liquid concentration will be penetrated To the 1/4~1/40 of original volume;Concentrate add alcohol to system alcohol mass percent concentration be 75%~95%, latter 2 DEG C~8 DEG C Stand alcohol precipitation 1~18 hour.
5. the preparation method of safflower polysaccharide according to claim 1, which is characterized in that in step (4), freeze thawing temperature be- 30 DEG C~0 DEG C, the freeze thawing time is 2~48 hours, centrifugal condition are as follows: revolving speed is higher than 4000r/pm, time 25min or more.
6. the preparation method of safflower polysaccharide according to claim 1, which is characterized in that separate with sephadex pure When change, loading volume accounts for the 2%~30% of gel column volume, and eluent is water.
7. the preparation method of safflower polysaccharide according to claim 1 or 6, which is characterized in that the sephadex is One of Sephadex LH-20, Sephadex G25, Sephadex G50, Sephadex G75 or a variety of.
8. the preparation method of safflower polysaccharide according to claim 7, which is characterized in that the gel column ratio of height to diameter is 2:1 ~6:1.
9. a kind of safflower polysaccharide, which is characterized in that prepared by the preparation method of any one of claim 1~8 safflower polysaccharide It obtains.
10. a kind of drug and health care product for immune correlated disease treatment, which is characterized in that phase is immunized containing treating or preventing Safflower polysaccharide described in a effective amount of claims 1 of related disorders and combinations thereof and pharmaceutical carrier.
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CN115120529B (en) * 2022-06-17 2023-10-24 山东农业大学 Red sage root and safflower compound polysaccharide, and preparation method and application thereof

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Denomination of invention: A preparation method, product and application of safflower polysaccharide

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