CN117679448A - Method for extracting and purifying total saponins of panax notoginseng - Google Patents
Method for extracting and purifying total saponins of panax notoginseng Download PDFInfo
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Abstract
The invention belongs to the technical field of extraction and purification of total saponins, and particularly relates to a method for extracting and purifying total saponins of panax notoginseng. The method comprises the following steps: taking pseudo-ginseng coarse powder, and carrying out enzymolysis to obtain an enzymolysis material; (2) Adding ethanol solution and surfactant into the enzymolysis material, and performing reflux extraction to obtain an extracting solution; (3) Refrigerating the extractive solution, decolorizing, and concentrating to obtain decolorized solution; (4) Purifying the decolorized solution with macroporous resin to obtain Notoginseng radix total saponin. The preparation process is simple, and is suitable for industrial production, and the total saponins of the final pseudo-ginseng can reach about 97%.
Description
Technical Field
The invention belongs to the technical field of extraction and purification of total saponins, and particularly relates to a method for extracting and purifying total saponins of panax notoginseng.
Background
Notoginseng radix is a plant of Panax of Araliaceae, also called Notoginseng radix, and is a traditional precious medicinal material. At present, at least two hundred active compounds including saponin, polysaccharide, flavonoid, volatile oil, amino acid and the like are found, roots, stems, leaves and flowers of the active compounds can be used as medicines, and at least twenty preparations in the national basic medicine catalogue and the national Chinese medicine protection variety catalogue contain pseudo-ginseng components. Modern pharmacology shows that the pseudo-ginseng has the pharmacological effects of stopping bleeding, dilating blood vessels, promoting blood circulation and removing blood stasis, and has the activities of reducing myocardial oxygen consumption, inhibiting platelet aggregation, dilating coronary artery, resisting atherosclerosis, resisting thrombosis and the like. Wherein, the total saponins of Notoginseng radix (PNS) has good effects of promoting blood circulation, removing blood stasis, relieving inflammation, and protecting myocardium.
The existing production and purification process of the pseudo-ginseng total saponins mainly adopts a column chromatography and a solvent extraction method. Column chromatography commonly used at present is silica gel column chromatography, gel column chromatography and macroporous adsorption resin method. The silica gel column chromatography and the gel column chromatography can purify to obtain the high-purity saponin component, but the operation is complex, the cost is high, and the method is not suitable for technological production; macroporous adsorption resin is a common method for industrially producing and purifying the total saponins of panax notoginseng at present.
The Chinese patent application CN109700841A discloses a method for producing and preparing high-purity panax notoginseng saponins, which comprises the following steps: (1) crushing and sieving pseudo-ginseng, extracting with alcohol, and concentrating; (2) Extracting with acetone, removing acetone, and dissolving precipitate with water; or extracting with n-butanol, retaining n-butanol, concentrating, and dissolving in water; (3) Loading onto macroporous adsorbent resin, washing with alkali water, purifying, eluting with ethanol, collecting eluate, and concentrating; purifying the refined resin and washing with water; (5) adding ethanol into the water washing liquid, and then, decoloring the resin; (6) decolorizing with active carbon, filtering, concentrating and drying. The total content of the final pseudo-ginseng total saponins reaches more than 90 percent, but the preparation method is more complex.
The Chinese patent application CN1919222A discloses a preparation method of total saponins of panax notoginseng, which comprises the following preparation steps: soaking Notoginseng radix in water, adding cellulase for enzymolysis, extracting the residue with water or 10% -90% ethanol, concentrating the extractive solution, sequentially loading onto anion exchange resin column and macroporous resin column, concentrating the eluate under reduced pressure to obtain extract, and drying. The method can remove most of water-soluble impurities and fat-soluble impurities such as saccharide and pigment, has the advantages of less impurities, high purity and stable quality, and can be used alone or with other active ingredients to prepare medicine with good therapeutic effect and high quality. Although the content of the total saponins finally obtained by the invention meets the requirement of Chinese pharmacopoeia (namely, the oral administration is not lower than 75%), the content is in the range of 81.3-85.7%, and is relatively less.
After the coarse powder of pseudo-ginseng is subjected to enzymolysis in the Chinese patent application CN107669721A, the enzymolysis product is subjected to water extraction and multistage countercurrent alcohol extraction, and then macroporous adsorption resin is adopted for adsorption treatment, so that the yield of the total saponins of pseudo-ginseng is about 80%. Pulverizing Notoginseng radix into coarse powder, adding 6-8 times of water into multifunctional extraction tank, adding emulsifier, mixing, and reflux extracting; then the extract is passed through macroporous adsorption resin, and the purity is not obviously improved although the extract yield is improved by 30 percent.
Therefore, the process for extracting and purifying the total saponins of panax notoginseng needs to be further researched, and the process parameters of enriching and purifying the total saponins of panax notoginseng by optimizing macroporous resin are optimized, so that the purposes of simplicity, rapidness, suitability for industrial production and high content are achieved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for purifying total saponins of panax notoginseng. The high-content total saponins of panax notoginseng is prepared by purifying LXD-100 macroporous resin, and the method is simple and quick and is suitable for industrial production.
In order to achieve the above purpose, the invention adopts the following specific technical scheme:
a method for extracting and purifying total saponins of panax notoginseng comprises the following steps:
(1) Taking pseudo-ginseng coarse powder, and carrying out enzymolysis to obtain an enzymolysis material;
(2) Adding ethanol solution and surfactant into the enzymolysis material, and performing reflux extraction to obtain an extracting solution;
(3) Refrigerating the extractive solution, decolorizing, and concentrating to obtain decolorized solution;
(4) Purifying the decolorized solution with macroporous resin to obtain Notoginseng radix total saponin.
Preferably, the enzymatic hydrolysis in step (1) comprises two enzymatic hydrolysis steps, the first enzymatic hydrolysis adding cellulase and the second enzymatic hydrolysis adding β -xylosidase and β -amylase.
Further preferably, the addition amount of the cellulase is 1% -1.5% of the weight of the pseudo-ginseng coarse powder, and the total addition amount of the beta-xylosidase and the beta-amylase is 0.5% -0.8% of the weight of the pseudo-ginseng coarse powder.
Further preferably, the mass ratio of the beta-xylosidase to the beta-amylase is 2-3:1.
Further preferably, the temperature of the first enzymolysis is 40-45 ℃, and the enzymolysis time is 1-1.5h; the temperature of the second enzymolysis is 50-60 ℃, and the enzymolysis time is 0.5-1h.
Beta-xylosidase belongs to glycoside hydrolase (glycoside hydrolase, GH), is one of main xylan degrading enzymes, and can be applied to the fields of food, feed, papermaking, energy sources and the like. Beta-xylosidase has special hydrolysis function, and can cut off notoginsenoside R 1 And R is 2 And xylose groups on ASI, XDT and anthocyanin to respectively form ginsenoside Rg 1 And Rh 1 10-Deacetylpaclitaxel (DT), cycloastragal (CA) and anthocyanidin, and these products with removed xylosyl have important biological activities such as anticancer, anti-inflammatory, antioxidant and memory improvement.
Beta-amylase generally plays an important role in industries such as food processing, grain processing, fermentation, brewing, textiles and the like, the beta-amylase serving as a saccharifying agent can be applied to industrial production such as beer, maltose, beverages and the like, is an important enzyme source in the food processing and brewing industries, is commonly used for starch decomposition and filtration speed improvement in fruit juice processing, and is commonly used for conversion of glycoside compounds.
Preferably, the mass concentration of the ethanol solution in the step (2) is 85% -95%, and the addition amount of the ethanol solution is 2-4 times of the weight of the enzymolysis materials.
Preferably, the surfactant in the step (2) is dodecyl glucoside, and the addition amount of the surfactant is 5% -10%, preferably 5% -8% of the weight of the enzymolysis material.
Preferably, the number of times of reflux extraction in the step (2) is 2-4, and the temperature of the reflux extraction is 75-85 ℃.
Preferably, the temperature of the refrigeration in the step (3) is 0-10 ℃, the time of the refrigeration is 24-48 hours, the time of the decolorization is 20-30 minutes, and the concentration is carried out until no ethanol smell exists.
Preferably, in the step (4), the macroporous resin is LXD-100, a wet method column packing is adopted, and the diameter-to-height ratio of the macroporous resin column is 1:3-5.
Preferably, the purification in step (4) comprises water washing to remove impurities and solution a elution; the volume of the water washing is 5-7BV, and the flow rate of the water washing is 2-3BV/h.
Further preferably, the solution a is a mixed solution of ethanol, n-butanol and water.
Preferably, the mass concentration of the ethanol in the solution A is 60% -70%, and the mass concentration of the n-butanol is 0.5% -2%.
Preferably, the flow rate of the elution of the solution A is 2-4BV/h, preferably 2-3BV/h, and the volume of the elution is 3-6BV.
Compared with the prior art, the invention has the following beneficial effects:
(1) The extraction and purification method is simple and efficient, and the total saponins of the pseudo-ginseng finally extracted has high content and high yield, wherein the content of the total saponins of the pseudo-ginseng can reach about 97 percent, and the yield can reach about 30 percent;
(2) According to the invention, different types of enzymes are used for enzymolysis, the cellulose firstly promotes the dissolution of plant cell walls to dissolve out more plant cell inner solubles, then the dissolved substances are further subjected to enzymolysis by adopting beta-xylosidase and beta-amylase at the same time, so that the enzymolysis efficiency is fully improved, and the content and the yield of the finally obtained total saponins of panax notoginseng are further improved;
(3) Compared with other macroporous resins, the LXD-100 macroporous resin is more suitable for purifying the total saponins of the pseudo-ginseng, and the elution is carried out by the mixed solution, so that the elution effect is obviously improved.
Detailed Description
The technical solutions of the embodiments of the present invention are further clearly described, and the described embodiments are only a part of the present invention, which are used to explain the present invention, but not to limit the present invention, so that other embodiments obtained by other persons skilled in the art without creative efforts fall within the protection scope of the present invention.
LXD-100 macroporous resin, available from New Material Co., ltd.
Example 1
A method for extracting and purifying total saponins of Notoginseng radix comprises the following steps:
(1) Taking pseudo-ginseng coarse powder, adding cellulase accounting for 1.2% of the weight of pseudo-ginseng, carrying out enzymolysis for 1h under the water bath condition of 45 ℃, adding beta-xylosidase accounting for 0.6% of the weight of pseudo-ginseng and beta-amylase (the mass ratio of the beta-xylosidase to the beta-amylase is 2:1), and carrying out enzymolysis for 1h under the water bath condition of 55 ℃ to obtain an enzymolysis material;
(2) Adding 3 times of ethanol solution with the mass concentration of 90% and dodecyl glucoside with the mass concentration of 6% into the enzymolysis material, reflux-extracting for 3 times at 80 ℃, and mixing the extracting solutions to obtain pseudo-ginseng extracting solution;
(3) Refrigerating Notoginseng radix extractive solution at 5deg.C for 30 hr, filtering, adding active carbon into the filtrate, stirring, adsorbing for 30min, and concentrating to obtain decolorized solution;
(4) Passing the decolorized solution through LXD-100 macroporous resin, wet packing (column volume is 50mL, diameter-to-height ratio is 1:4), washing water with 6BV ultrapure water at 3BV/h flow rate, eluting with mixed solution of ethanol, n-butanol and water (wherein the mass concentration of ethanol is 70% and the mass concentration of n-butanol is 1%), co-eluting at 2BV/h for 6BV, collecting eluate, concentrating and drying to obtain Notoginseng radix total saponin with yield of 21.7%.
According to the method for detecting the content of the total saponins of pseudo-ginseng in the Chinese pharmacopoeia of 2020 edition, the content of the total saponins of pseudo-ginseng is detected to be 97.4 percent.
Example 2
A method for extracting and purifying total saponins of Notoginseng radix comprises the following steps:
(1) Taking pseudo-ginseng coarse powder, adding cellulase accounting for 1.5% of the weight of pseudo-ginseng, carrying out enzymolysis for 1.5 hours under the water bath condition of 40 ℃, adding beta-xylosidase accounting for 0.5% of the weight of pseudo-ginseng and beta-amylase (the mass ratio of the beta-xylosidase to the beta-amylase is 3:1), and carrying out enzymolysis for 0.5 hour under the water bath condition of 60 ℃ to obtain an enzymolysis material;
(2) Adding 2 times of ethanol solution with the mass concentration of 95% and dodecyl glucoside with the mass concentration of 5% into the enzymolysis material, reflux-extracting for 4 times at 75 ℃, and mixing the extracting solutions to obtain pseudo-ginseng extracting solution;
(3) Refrigerating Notoginseng radix extractive solution at 10deg.C for 48 hr, filtering, adding active carbon into the filtrate, stirring, adsorbing for 30min, and concentrating to obtain decolorized solution;
(4) Passing the decolorized solution through LXD-100 macroporous resin, wet packing (column volume is 50mL, diameter-to-height ratio is 1:4), washing water with 6BV ultrapure water at 3BV/h flow rate, eluting with mixed solution of ethanol, n-butanol and water (wherein the mass concentration of ethanol is 70% and the mass concentration of n-butanol is 0.5%), co-eluting at 3BV/h flow rate for 5.5BV, collecting eluate, concentrating and drying to obtain Notoginseng radix total saponins with yield of 21.1%.
According to the method for detecting the content of the total saponins of pseudo-ginseng in the Chinese pharmacopoeia of 2020 edition, the content of the total saponins of pseudo-ginseng is detected to be 97.0 percent.
Example 3
A method for extracting and purifying total saponins of Notoginseng radix comprises the following steps:
(1) Taking pseudo-ginseng coarse powder, adding cellulase accounting for 1% of the weight of pseudo-ginseng, carrying out enzymolysis for 1.2 hours under the water bath condition of 45 ℃, adding beta-xylosidase accounting for 0.8% of the weight of pseudo-ginseng and beta-amylase (the mass ratio of the beta-xylosidase to the beta-amylase is 2:1), and carrying out enzymolysis for 1 hour under the water bath condition of 50 ℃ to obtain an enzymolysis material;
(2) Adding 2 times of ethanol solution with the mass concentration of 85% and dodecyl glucoside with the mass concentration of 8% into the enzymolysis material, reflux-extracting for 4 times at 85 ℃, and mixing the extracting solutions to obtain pseudo-ginseng extracting solution;
(3) Refrigerating Notoginseng radix extractive solution at 0deg.C for 24 hr, filtering, adding active carbon into the filtrate, stirring, adsorbing for 30min, and concentrating to obtain decolorized solution;
(4) Passing the decolorized solution through LXD-100 macroporous resin, loading into a column (column volume is 50mL, diameter-to-height ratio is 1:4) by wet method, washing with 5.5BV ultrapure water at a flow rate of 2.5BV/h, eluting with a mixed solution of ethanol, n-butanol and water (wherein the mass concentration of ethanol is 70% and the mass concentration of n-butanol is 2%), co-eluting at a flow rate of 2.5BV/h for 5BV, collecting the eluent, concentrating and drying to obtain Notoginseng radix total saponins with a yield of 22.4%.
According to the method for detecting the content of the total saponins of pseudo-ginseng in the Chinese pharmacopoeia of 2020 edition, the content of the total saponins of pseudo-ginseng is detected to be 97.1 percent.
Example 4
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: and (4) eluting with a mixed solution of ethanol, n-butanol and water (wherein the mass concentration of the ethanol is 70% and the mass concentration of the n-butanol is 1%), eluting at a speed of 4BV/h, eluting for 6BV altogether, collecting the eluent, concentrating and drying to obtain the total saponins of the pseudo-ginseng with the content of 93.2% and the yield of 20.1%.
Example 5
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: the temperature of the two enzymatic hydrolysis steps in step (1) was 45℃and the remaining steps were identical to those of example 1. The content of the total saponins of panax notoginseng is 95.1 percent, and the yield is 19.7 percent.
Comparative example 1
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: in the step (1), cellulase, beta-xylosidase and beta-amylase are added into pseudo-ginseng at the same time, and enzymolysis is carried out for 1h under the water bath condition of 45 ℃. The content of the total saponins of panax notoginseng is 89.2 percent, and the yield is 16.5 percent.
Comparative example 2
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: in the step (1), cellulase is added for enzymolysis for 1h, then beta-amylase accounting for 0.6 percent of the weight of the pseudo-ginseng is added, and the enzymolysis is carried out for 1h under the water bath condition of 55 ℃. The content of the total saponins of panax notoginseng is 91.3 percent, and the yield is 17.1 percent.
Comparative example 3
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: in the step (1), cellulase is added for enzymolysis for 1h, then beta-xylosidase accounting for 0.6% of the weight of the pseudo-ginseng is added, and the enzymolysis is carried out for 1h under the water bath condition of 55 ℃. The content of the total saponins of panax notoginseng is 90.9 percent and the yield is 17.3 percent.
Comparative example 4
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: in the step (2), dodecyl glucoside is not added. The content of the total saponins of panax notoginseng is 88.7 percent, and the yield is 16.9 percent.
Comparative example 5
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: the dodecyl glucoside is replaced by lauramidopropyl betaine in the step (2). The content of the total saponins of panax notoginseng is 89.8 percent, and the yield is 17.1 percent.
Comparative example 6
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: the eluent in the step (4) is ethanol solution with the mass concentration of 70 percent. The content of the total saponins of panax notoginseng is 90.2 percent, and the yield is 17.3 percent.
Comparative example 7
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: the eluent in the step (4) is a mixed solution of ethanol, n-butanol and water (wherein the mass concentration of the ethanol is 50% and the mass concentration of the n-butanol is 1%). The content of the total saponins of panax notoginseng is 91.4 percent, and the yield is 16.2 percent.
Comparative example 8
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: and (3) replacing LXD-100 macroporous resin with D101 macroporous resin in the step (4). The content of the total saponins of panax notoginseng is 89.2 percent, and the yield is 17.2 percent.
Comparative example 9
The process for extracting and purifying total saponins of panax notoginseng is different from example 1 only in that: and (3) replacing the LXD-100 macroporous resin with the LXD-200 macroporous resin in the step (4). The content of the total saponins of panax notoginseng is 90.5 percent, and the yield is 17.5 percent.
The foregoing detailed description is directed to one of the possible embodiments of the present invention, which is not intended to limit the scope of the invention, but is to be accorded the full scope of all such equivalents and modifications so as not to depart from the scope of the invention.
Claims (13)
1. The method for extracting and purifying the total saponins of panax notoginseng is characterized by comprising the following steps of:
(1) Taking pseudo-ginseng coarse powder, and carrying out enzymolysis to obtain an enzymolysis material;
(2) Adding ethanol solution and surfactant into the enzymolysis material, and performing reflux extraction to obtain an extracting solution;
(3) Refrigerating the extractive solution, decolorizing, and concentrating to obtain decolorized solution;
(4) Purifying the decolorized solution with macroporous resin to obtain Notoginseng radix total saponin.
2. The method for extracting and purifying total saponins of panax notoginseng according to claim 1, wherein the enzymolysis in the step (1) comprises two enzymolysis steps, wherein cellulase is added in the first enzymolysis step, and beta-xylosidase and beta-amylase are added in the second enzymolysis step.
3. The method for extracting and purifying total saponins of panax notoginseng according to claim 2, wherein the addition amount of cellulase is 1% -1.5% of the weight of the coarse powder of panax notoginseng, and the total addition amount of beta-xylosidase and beta-amylase is 0.5% -0.8% of the weight of the coarse powder of panax notoginseng.
4. The method for extracting and purifying total saponins of panax notoginseng as claimed in claim 3, wherein the mass ratio of the beta-xylosidase to the beta-amylase is 2-3:1.
5. The method for extracting and purifying total saponins of panax notoginseng according to claim 2, wherein the temperature of the first enzymolysis is 40-45 ℃, and the enzymolysis time is 1-1.5h; the temperature of the second enzymolysis is 50-60 ℃, and the enzymolysis time is 0.5-1h.
6. The method for extracting and purifying total saponins of panax notoginseng according to claim 1, wherein the mass concentration of the ethanol solution in the step (2) is 85% -95%, and the addition amount of the ethanol solution is 2-4 times of the weight of the enzymolysis material.
7. The method for extracting and purifying total saponins of panax notoginseng according to claim 1, wherein the surfactant in the step (2) is dodecyl glucoside, and the addition amount of the surfactant is 5% -10% of the weight of the enzymolysis material.
8. The method for extracting and purifying total saponins of panax notoginseng according to claim 1, wherein the number of times of reflux extraction in the step (2) is 2 to 4, and the temperature of reflux extraction is 75 ℃ to 85 ℃.
9. The method for extracting and purifying total saponins of panax notoginseng according to any one of claims 1 to 8, wherein the macroporous resin in the step (4) is LXD-100, wet packing is adopted, and the diameter-height ratio of the macroporous resin column is 1:3-5.
10. The method for extracting and purifying total saponins of panax notoginseng according to claim 1, wherein the purification in step (4) includes water washing to remove impurities and solution a elution; the volume of the water washing is 5-7BV, and the flow rate of the water washing is 2-3BV/h.
11. The method for extracting and purifying total saponins of panax notoginseng according to claim 10, wherein the solution a is a mixed solution of ethanol, n-butanol and water.
12. The method for extracting and purifying total saponins of panax notoginseng according to claim 11, wherein the mass concentration of ethanol in the solution a is 60% -70%, and the mass concentration of n-butanol is 0.5% -2%.
13. The method for extracting and purifying total saponins of panax notoginseng according to claim 10, wherein the flow rate of the solution a is 2-4BV/h, and the eluting volume is 3-6BV.
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CN104997009A (en) * | 2015-07-25 | 2015-10-28 | 云南蓝钻生物科技股份有限公司 | Health-care food for resisting aging and enhancing immunity and preparation method of health-care food |
CN105147753A (en) * | 2015-10-23 | 2015-12-16 | 云南大学 | Application of panax notoginseng saponins to direct HCV resisting medicine preparing |
CN116712469A (en) * | 2023-05-19 | 2023-09-08 | 长春医学高等专科学校(长春职工医科大学长春市医学情报所) | Traditional Chinese medicine extract and preparation method thereof |
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CN104997009A (en) * | 2015-07-25 | 2015-10-28 | 云南蓝钻生物科技股份有限公司 | Health-care food for resisting aging and enhancing immunity and preparation method of health-care food |
CN105147753A (en) * | 2015-10-23 | 2015-12-16 | 云南大学 | Application of panax notoginseng saponins to direct HCV resisting medicine preparing |
CN116712469A (en) * | 2023-05-19 | 2023-09-08 | 长春医学高等专科学校(长春职工医科大学长春市医学情报所) | Traditional Chinese medicine extract and preparation method thereof |
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