CN101717427A - Process for extracting astragaloside IV - Google Patents

Process for extracting astragaloside IV Download PDF

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CN101717427A
CN101717427A CN 200910250347 CN200910250347A CN101717427A CN 101717427 A CN101717427 A CN 101717427A CN 200910250347 CN200910250347 CN 200910250347 CN 200910250347 A CN200910250347 A CN 200910250347A CN 101717427 A CN101717427 A CN 101717427A
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extraction
radix astragali
solution
enzymolysis
astragaloside
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CN101717427B (en
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张守力
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Abstract

The invention relates to the field of medicament extraction and refining, which is a process for extracting astragaloside IV and solves the problems that the products of the prior art has low yield or needs special devices and technology, is not beneficial to generalization and production and the like. The invention provides a simple, effective, high-yield and new extracting process capable of realizing the industrial large-scale production. The process is operated by the following steps of: cutting raw materials in to pieces or coarse grains, adding enzyme for enzymolysis, and after the enzymolysis, extracting the raw materials by water; extracting and refilling the astragaloside IV. The invention combines the enzymolysis method with a water extraction method and an ethanol extraction method, such that the astragaloside IV in the raw materials can be extracted in maximum; the waste of the raw materials is avoided, the production rate of the astragaloside IV is improved, and the yield of the astragaloside IV is high. In addition, a solution mixing butyl acetate and tert-butyle alcohol is used for refilling, such that the finally obtained product has good quality, stable formation and high yield; and the raw materials are repeatedly and fully utilized in the whole production process, thus the economic efficiency is improved, the environment is protected, and the invention is suitable for the industrial production.

Description

Process for extracting astragaloside IV
Technical field
The present invention relates to the extract drugs field, is a kind of process for extracting astragaloside IV.
Background technology
The Radix Astragali
Figure G2009102503470D0000011
Strengthening QI of middle-JIAO is arranged, nourshing blood and promoting blood circulation, inducing diuresis to remove edema, functions such as strengthening superficial resistance to stop perspiration, mainly containing triterpenoid saponin, flavonoid compound and polysaccharide, is the leading indicator that main component, particularly Cyclosiversioside F are commonly used for quality control with astragalin I (also claiming Cyclosiversioside F) and II in the triterpenoid saponin.The Cyclosiversioside F extracting method mainly contains decocting cooking method, ethanol reflux extraction, ultrasonic extraction, CO 2Supercritical extraction.Ethanol reflux extraction alcohol consumption is very big, needs a whole set of refluxing unit.Though the Milkvetch Root quality is comparatively loose, Cyclosiversioside F is a water soluble component, the water boiling and extraction Cyclosiversioside F yield lower (usually only less than 0.2%) of existing report, ultrasonic extraction, CO 2Though supercritical extraction can improve the Cyclosiversioside F yield, need special or complex apparatus, that also is that all right is ripe in commercial scale production.The extracting method that adopts enzymolysis process to extract Cyclosiversioside F in conjunction with no pure liquid phase extraction process does not appear in the newspapers as yet.And present method has also adopted a kind of more efficiently process for purification, and adopt N-BUTYL ACETATE: trimethyl carbinol mixing solutions is made with extra care, and does not appear in the newspapers, and by good effect, has improved quality product and extraction and purification efficiency.
Summary of the invention
An object of the present invention is to solving above-mentioned prior art products yield lowly or need specific installation and technology, be unfavorable for promoting problem such as productions, provide a kind of effectively simple, product yield height can be realized the new extraction process of mass-producing, industrialization production.This technology is operated according to following steps:
With raw material section or coarse grain, and add enzyme and carry out enzymolysis, use water extraction after the enzymolysis; Extraction; Refining.
Specifically, extraction step is: selected Radix Astragali rhizome section 1kg, add 2-5 times of water, and add enzyme, carry out enzymolysis, leaching process divides 2-4 time, each deionized water extraction 1h-5d with 6-14 times of Radix Astragali quality; After the water extract concentrated with filter paper filtering, the concentration that adds 2-4 times of concentrated solution volume surpassed 90% ethanol, leaves standstill more than the 16h, filtered and removed precipitation, and filtrate concentrating obtains the Radix Astragali total saponins concentrated solution, reclaims ethanol;
Extraction: use concentrated solution volume 1/4-1 petroleum ether extraction degreasing doubly more than 2 times the Radix Astragali total saponins concentrated solution that obtains, each extraction 2-4h, merge lower floor's solution, water-saturated n-butanol with 1/4-1 times of degreasing concentrated solution volume repeats to come together 2-4 time again, more than each extraction 1h, merge n-butanol layer, rotary evaporation, the dry Radix Astragali total saponins crude product that gets;
Refining: the Radix Astragali total saponins crude product adds 4-6 times of N-BUTYL ACETATE: the solution of the trimethyl carbinol (1: 1), stir, and place after-filtration, drying precipitate promptly gets the finished product, and filtrate is reclaimed.
Furtherly:
Selected Radix Astragali rhizome section adds 3 times of water, adds enzyme, carries out enzymolysis, and leaching process divides 2 times, the deionized water extraction 24h of 12 times of Radix Astragali quality of the 1st usefulness; The 2nd amount of water is 10 times of Radix Astragali quality, extracts 20h.After the water extract is concentrated into small volume with filter paper filtering, add 95% ethanol of 3 times of concentrated solution volumes, leave standstill 24h, filter and remove precipitation, filtrate concentrates, and reclaims ethanol.
Extraction: with the Radix Astragali total saponins concentrated solution that obtains with the petroleum ether extraction degreasing of 1/3 volume 3 times, each extraction 3h, merge lower floor's solution, use the water-saturated n-butanol re-extract 3 times of 1/3 degreasing concentrated solution volume again, each extraction 2h, merge n-butanol layer, rotary evaporation, the dry Radix Astragali total saponins crude product that gets.
Refining: the Radix Astragali total saponins crude product adds 5 times of N-BUTYL ACETATEs: the solution of the trimethyl carbinol (1: 1), stir, and place after-filtration, drying precipitate promptly gets the finished product, and filtrate is reclaimed.
The enzyme that adds in the described extraction step is to add with the form of enzymolysis solution, and the consumption of described enzymolysis solution is the 0.5-5% of raw materials quality, and hydrolysis temperature is 30-50 ℃, and enzymolysis time is 2-5 hour.
Wherein said enzymolysis solution can be cellulase.Can also be the prozyme of cellulase and distiller's yeast enzyme, in the quality percentage composition, cellulase be 40-100%, and the distiller's yeast enzyme is 0-60%; Preferably, cellulase is 50-80%, and the distiller's yeast enzyme is 20-50%; More preferably cellulase is 60%, and the distiller's yeast enzyme is 40%.Can also comprise amylase in the described enzymolysis solution, in the quality percentage composition, cellulase is 40-100%, and the distiller's yeast enzyme is 0-60%, and amylase is 0-40%.The preferred cellulose enzyme is 50-60%, and the distiller's yeast enzyme is 20-40%, amylase be 10-20%. most preferably cellulase be 50%, the distiller's yeast enzyme is 35%, amylase is 15%.
The concentration of described enzymolysis solution is 2%-10%.Can add with the enzymolysis solution form of working good in the raw material, also can mix the mixture that forms raw material and enzymolysis solution respectively with raw material with the form of aqueous solvent and enzyme.
Beneficial effect of the present invention is:
The present invention unites enzymolysis process and water extracting alcohol is put forward the way of combining method, make the Cyclosiversioside F in the raw material be extracted out dramatically, avoided the waste of raw material to the utmost, improved the productivity of Cyclosiversioside F, yield has improved more than 80%, output height, and the good product quality that makes, it is stable to be shaped.And whole process of production has been accomplished making full use of repeatedly of raw material, has not only improved economic benefit, has accomplished utilization of waste material especially, the protection environment, and whole process is fit to suitability for industrialized production.
Treating process of the present invention has changed sodium hydroxide solution alkali wash commonly used in the past, and adopt N-BUTYL ACETATE: the trimethyl carbinol is refining, and process is simple, and solvent can reclaim, and pollutes little, effective.
Embodiment
Embodiment 1
Selected Radix Astragali rhizome section 1kg adds 2 times of water, adds enzyme, carries out enzymolysis, and leaching process divides 2 times, the deionized water extraction 4d of 12 times of Radix Astragali quality of the 1st usefulness; The 2nd amount of water is 10 times of Radix Astragali quality, extracts 3d.The water extract also concentrates with filter paper filtering, adds 95% ethanol of 3 times of concentrated solution volumes, leaves standstill 24h, filters to remove to precipitate, and filtrate concentrates, and reclaims ethanol.
Extraction: with the Radix Astragali total saponins concentrated solution that obtains with the petroleum ether extraction degreasing of 1/3 volume 3 times, each extraction 3h, merge lower floor's solution, use the water-saturated n-butanol re-extract 3 times of 1/3 degreasing concentrated solution volume again, each extraction 2h, merge n-butanol layer, rotary evaporation, the dry Radix Astragali total saponins crude product that gets.
Refining: the Radix Astragali total saponins crude product adds 5 times of N-BUTYL ACETATEs: the solution of the trimethyl carbinol (1: 1), stir, and place after-filtration, drying precipitate promptly gets the finished product, and filtrate is reclaimed.
The enzyme that adds in the described extraction step is to add with the form of enzymolysis solution, and the consumption of described enzymolysis solution is the 0.5-5% of raw materials quality, and hydrolysis temperature is 30-50 ℃, and enzymolysis time is 2-5 hour.
Cellulase is 60% in the enzyme of wherein said enzymolysis solution, and the distiller's yeast enzyme is 40%.
Embodiment 2
Selected Radix Astragali rhizome section 1kg adds 5 times of water, adds enzyme, carries out enzymolysis, and leaching process divides 3 times, the deionized water extraction 4d of 8 times of Radix Astragali quality of the 1st usefulness; The 2nd amount of water is 7 times of Radix Astragali quality, extracts 3d, carries 4h with 6 times of water for the third time.The water extract also concentrates with filter paper filtering, adds 98% ethanol of 2 times of concentrated solution volumes, leaves standstill 20h, filters to remove to precipitate, and filtrate concentrates, and reclaims ethanol.
Extraction: with the Radix Astragali total saponins concentrated solution that obtains with the petroleum ether extraction degreasing of 1/2 volume 3 times, each extraction 3h, merge lower floor's solution, use the water-saturated n-butanol re-extract 3 times of 1/2 degreasing concentrated solution volume again, each extraction 2h, merge n-butanol layer, rotary evaporation, the dry Radix Astragali total saponins crude product that gets.
Refining: the Radix Astragali total saponins crude product adds 4 times of N-BUTYL ACETATEs: the solution of the trimethyl carbinol (1: 1), stir, and place after-filtration, drying precipitate promptly gets the finished product, and filtrate is reclaimed.
The enzyme that adds in the described extraction step is to add with the form of enzymolysis solution, and the consumption of described enzymolysis solution is a raw materials quality 2%, and hydrolysis temperature is 40 ℃, and enzymolysis time is 3 hours.
Embodiment 3-11
In the 10kg raw material, the consumption of enzyme and composition, and enzymolysis time and temperature are as shown in the table, all the other are with embodiment 1:
Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6 Embodiment 7 Embodiment 8 Embodiment 9 Embodiment 10 Embodiment 11
Enzyme dosage (kg) ??0.2 ??0.1 ??0.3 ??0.15 ??0.25 ??0.18 ??0.22 ??0.27 ??0.12
Hydrolysis temperature (℃) ??30 ??50 ??40 ??35 ??45 ??38 ??42 ??48 ??33
Enzymolysis time (h) ??3 ??3.2 ??3.5 ??5 ??3.8 ??4 ??4.2 ??4.5 ??1
Cellulase content (%) ??100 ??40 ??50 ??60 ??50 ??70 ??55 ??80 ??90
Distiller's yeast enzyme content (%) ??0 ??60 ??40 ??20 ??35 ??25 ??5 ??20 ??0
Amylase content (%) ??0 ??0 ??10 ??20 ??15 ??5 ??40 ??0 ??10

Claims (10)

1. a process for extracting astragaloside IV is characterized in that, this technology is operated according to following steps:
With raw material section or coarse grain, and add enzyme and carry out enzymolysis, use water extraction after the enzymolysis; Extraction; Refining.
2. process for extracting astragaloside IV according to claim 1 is characterized in that, extraction step is: selected Radix Astragali rhizome section 1kg, add 2-5 times of water, add enzyme, carry out enzymolysis, leaching process divides 2-4 time, each deionized water extraction 1h-5d with 6-14 times of Radix Astragali quality; After the water extract concentrated with filter paper filtering, the concentration that adds 2-4 times of concentrated solution volume surpassed 90% ethanol, leaves standstill more than the 16h, filtered and removed precipitation, and filtrate concentrating obtains the Radix Astragali total saponins concentrated solution, reclaims ethanol;
Extraction: use concentrated solution volume 1/4-1 petroleum ether extraction degreasing doubly more than 2 times the Radix Astragali total saponins concentrated solution that obtains, each extraction 2-4h, merge lower floor's solution, water-saturated n-butanol with 1/4-1 times of degreasing concentrated solution volume repeats to come together 2-4 time again, more than each extraction 1h, merge n-butanol layer, rotary evaporation, the dry Radix Astragali total saponins crude product that gets;
Refining: the Radix Astragali total saponins crude product adds 4-6 times of N-BUTYL ACETATE: the solution of the trimethyl carbinol (1: 1), stir, and place after-filtration, drying precipitate promptly gets the finished product, and filtrate is reclaimed.
3. process for extracting astragaloside IV according to claim 2 is characterized in that, extraction step is: selected Radix Astragali rhizome section, add 3 times of water, and add enzyme, carry out enzymolysis, leaching process divides 2 times, the deionized water extraction 24h of 12 times of Radix Astragali quality of the 1st usefulness; The 2nd amount of water is 10 times of Radix Astragali quality, extracts 20h, and the water extract is with filter paper filtering and concentrate, and adds 95% ethanol of 3 times of concentrated solution volumes, leaves standstill 24h, filters and removes precipitation, and filtrate concentrates, and reclaims ethanol;
Extraction: with the Radix Astragali total saponins concentrated solution that obtains with the petroleum ether extraction degreasing of 1/3 volume 3 times, each extraction 3h, merge lower floor's solution, use the water-saturated n-butanol re-extract 3 times of 1/3 degreasing concentrated solution volume again, each extraction 2h, merge n-butanol layer, rotary evaporation, the dry Radix Astragali total saponins crude product that gets;
Refining: the Radix Astragali total saponins crude product adds 5 times of N-BUTYL ACETATEs: the solution of the trimethyl carbinol (1: 1), stir, and place after-filtration, drying precipitate promptly gets the finished product, and filtrate is reclaimed.
4. according to the arbitrary described process for extracting astragaloside IV of claim 1-3, it is characterized in that the enzyme that adds in the described extraction step is to add with the form of enzymolysis solution, the consumption of described enzymolysis solution is the 0.5-5% of raw materials quality, hydrolysis temperature is 30-50 ℃, and enzymolysis time is 2-5 hour.
5. process for extracting astragaloside IV according to claim 4 is characterized in that, described enzymolysis solution is a cellulase.
6. process for extracting astragaloside IV according to claim 4 is characterized in that, described enzymolysis solution is the prozyme of cellulase and distiller's yeast enzyme, and in the quality percentage composition, cellulase is 40-100%, and the distiller's yeast enzyme is 0-60%.
7. process for extracting astragaloside IV according to claim 6 is characterized in that, described enzymolysis solution cellulase is 50-80%, and the distiller's yeast enzyme is 20-50%; More preferably cellulase is 60%, and the distiller's yeast enzyme is 40%.
8. process for extracting astragaloside IV according to claim 6 is characterized in that, can also comprise amylase in the described enzymolysis solution, and in the quality percentage composition, cellulase is 40-100%, and the distiller's yeast enzyme is 0-60%, and amylase is 0-40%.
9. process for extracting astragaloside IV according to claim 8 is characterized in that, cellulase is 50-60% in the described enzymolysis solution, and the distiller's yeast enzyme is 20-40%, and amylase is 10-20%.
10. process for extracting astragaloside IV according to claim 9 is characterized in that, cellulase is 50% in the described enzymolysis solution, and the distiller's yeast enzyme is 35%, and amylase is 15%.
CN 200910250347 2009-12-04 2009-12-04 Process for extracting astragaloside IV Expired - Fee Related CN101717427B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109105899A (en) * 2018-09-10 2019-01-01 齐鲁工业大学 A method of preparing high activity IBD medical food raw material
CN109125381A (en) * 2018-09-05 2019-01-04 湖南中茂生物科技有限公司 A method of promoting astragalus root total saponin conversion

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1569884B (en) * 2004-04-29 2010-11-10 南京医科大学 Method for preparing astragaloside and its use in preparation of drug for preventing and treating diabetic nephropathy
CN101130802A (en) * 2007-07-30 2008-02-27 金凤燮 Method for preparing astragaloside iv by enzymic hydrolysis for astragalus saponin glycosyl
CN101695520B (en) * 2008-12-30 2013-01-16 天津医科大学 Preparation method of medicament for treating diabetes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109125381A (en) * 2018-09-05 2019-01-04 湖南中茂生物科技有限公司 A method of promoting astragalus root total saponin conversion
CN109105899A (en) * 2018-09-10 2019-01-01 齐鲁工业大学 A method of preparing high activity IBD medical food raw material
CN109105899B (en) * 2018-09-10 2022-11-29 齐鲁工业大学 Method for preparing high-activity IBD medical food raw material

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