CN105440148A - Process for producing astragalus polysaccharide by using water extraction technology - Google Patents
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
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Abstract
The invention relates to the technical field of extraction of the medicine Radix Astragali, specifically to a process for producing astragalus polysaccharide by using water extraction technology. The process comprises the following steps: cleaning dried Radix Astragali, drying and crushing the cleaned Radix Astragali, adding water, carrying out heating and boiling extraction three times, combining extraction liquids, cooling the combined extraction liquid through standing, adding a natural plant extraction liquid clarificant KBT-ZTC, carrying out standing and then carrying out rotary evaporation and concentration on crude extraction liquid so as to obtain crude extract; and adding ethanol into the crude extract, stirring the extract to dissolve the extract, then carrying out standing and precipitation, removing supernatant through centrifugation so as to obtain a precipitate, adding ethanol again, and carrying out stirring and centrifugation again so as to obtain pure astragalus polysaccharide. According to the invention, a series of procedures are carried out to extract high-quality astragalus polysaccharide; traditional Chinese herbal medicine clarification technology is introduced on the basis of a conventional water extraction and alcohol precipitation method, so the extraction yield of active ingredients in astragalus polysaccharide is increased; and the improved process has an astragalus polysaccharide extraction rate of more than 6.5%.
Description
Technical field
The invention belongs to Radix Astragali extract drugs technical field, particularly relate to the technique utilizing water extraction technology to produce astragalus polysaccharides.
Background technology
The Radix Astragali is fabaceous, and taste is sweet, slightly warm in nature, returns lung, the spleen channel, there is tonifying Qi and lifting yang, beneficial taste shown admittedly, inducing diuresis to remove edema, promote the production of body fluid nourish blood, expelling pus and toxin by strengthening QI, the effect such as expelling pus and promoting granulation.Astragalus polysaccharides (APS) is the polysaccharide extracted from Chinese medicine astragalus, primarily of compositions such as fructose, rhamnosyl, pectinose, hexuronic acid, glucose, galacturonic acid and glucuronic acids.Because of its have strengthen function of immune system, antitumor, protect the liver, the effect such as hypoglycemic, antiviral, resisting oxidation and delaying senility.In veterinary clinic, astragalus polysaccharides has obvious effect at immunomodulatory, antiviral, antibiosis, is widely used, can be used to prevent grice diarrhoea, Porcine circovirus desease, porcine influenza, blue otopathy etc. with immunostimulant and immunological adjuvant.In addition, astragalus polysaccharides can also promote growth of animals or poultry, improves breeding performonce fo animals, shortens the rabbit culture-cycle etc.In recent years along with the expansion of astragalus polysaccharides clinical application, many scholars have carried out large quantity research to the extraction and separation process of astragalus polysaccharides, but still there is general lower, the problem such as extraction cost is high, leaching process is loaded down with trivial details, power consumption is high of astragalus polysaccharides extraction yield.
Astragalus polysaccharides water soluble, is insoluble to alcohol.Current water extraction is the traditional method extracting herbal polysaccharide, and water extraction method is simple, easy to operation, but energy consumption is comparatively large, and extracting method is unstable, extracts the purity of polysaccharide obtained not high, how containing impurity such as protein, nucleic acid, starch.The present invention is in order to the astragalus polysaccharides purity solving above-mentioned water extraction and extract is not high, extract the large problem of energy consumption, according to the physicochemical property of effective constituent most of in astragalus polysaccharides and in order to cost-saving, introduce finings dedoping step, impurity in effective removing pharmaceutical cpd, reduce the energy consumption of leaching process because needing pyroprocess to produce, and extractive technique technical process is tended towards stability, method is reproducible.
Summary of the invention
The object of the invention is to overcome existing medical glycyrrhiza and extract the shortcomings such as astragalus polysaccharides purity, extraction yield are low, a kind of technique utilizing water extraction technology to produce astragalus polysaccharides is provided.
Actualizing technology scheme of the present invention is, a kind of technique utilizing water extraction technology to produce astragalus polysaccharides, and be raw material with the Radix Astragali, it is characterized in that, the method step comprises:
1) crude extract obtains: dry astragalus root raw material 1kg, and add 5 ~ 10 times of water after cleaning, drying, pulverizing, ebuillition of heated extracts 3 times, and united extraction liquid leaves standstill and cools, and obtains crude extract;
2) concentration and evaporation: add natural botanical extraction liquid finings KBT-ZTC in the crude extract that step 1) obtains, add-on is 5 ~ 10g/L, and after leaving standstill 20 ~ 30min, rotary evaporation concentrates crude extract, obtains medicinal extract crude product;
3) removal of impurities is dissolved: in step 2) add ethanol in the medicinal extract crude product that obtains, stir medicinal extract and dissolve, staticly settle, centrifugal segregation supernatant liquor is precipitated thing, throw out adds ethanol again to carry out leaving standstill after stirring, and centrifugal collecting precipitate, obtains sterling astragalus polysaccharides.
As of the present invention open further, described natural botanical extraction liquid finings KBT-ZTC is the finings that You Ke Lier bio tech ltd produces.
As further qualifications of the present invention, described cleaning is for using clean water 2 ~ 3 times; Described pulverizing is that astragalus membranaceus powder is broken to 50 ~ 100 orders.
As further qualifications of the present invention, it is the medicinal extract of 1.0 ~ 1.50 that crude extract is evaporated to water proportion d by described rotary evaporation simmer down to.
As further qualifications of the present invention, in described step 3), the add-on of ethanol is 2 ~ 5 times of volumes of medicinal extract.
The present invention achieves following substantial advance and outstanding effect:
Start with medicinal Astragalis, high-quality astragalus polysaccharides is extracted through series of processes, on the basis of common water extraction and alcohol precipitation method, introduced plant Chinese medicine clarification technique realizes the extraction purification of high-quality yellow astragalus polysaccharides, the clarification dedoping step introduced efficiently can remove the macromole impurity such as protein, nucleic acid, starch in astragalus polysaccharides, and improve extracts active ingredients productive rate in astragalus polysaccharides, method astragalus polysaccharides extraction yield after improvement is more than 6.5%, the chemoprophylaxis treatments such as the astragalus polysaccharides obtained can be used for regulating animal immune in veterinary clinic, antiviral, antibiosis.
Astragalus polysaccharides of the present invention is admixed in the feed for nursing of animal according to certain ratio, a meal is fed in three meals in a day, the immunizing power of animal can be significantly improved, sickness rate has been reduced to 20.5% from initial 32%, the health realizing animal is raised, reduce the treatment of microbiotic, hormonal medicaments, realize ecological raising, improve livestock-raising economic worth.
Embodiment
Following embodiment describes the present invention and utilizes water extraction technology to produce the technique of astragalus polysaccharides, and these descriptions are not be further limited content of the present invention, and all reagent used in following examples are all bought by commercial means.
embodiment 1
The present embodiment is with the dry Radix Astragali for raw material, and preparation method's step comprises:
1) crude extract obtains: dry astragalus root raw material 1kg, cleaning, dry, pulverize after add 5 times of water (cleaning for by clean water 3 times, pulverize as astragalus membranaceus powder is broken to 50 orders), ebuillition of heated extracts 3 times, and united extraction liquid leaves standstill and cools, and obtains crude extract;
2) concentration and evaporation: add the natural botanical extraction liquid finings KBT-ZTC produced by Ke Lier bio tech ltd in the crude extract that step 1) obtains, add-on is 5g/L, after leaving standstill 30min, rotary evaporation concentrates crude extract, is the medicinal extract of 1.50, obtains medicinal extract crude product to water proportion d;
3) removal of impurities is dissolved: in step 2) add ethanol in the medicinal extract crude product that obtains, the add-on of ethanol is 5 times of volumes of medicinal extract, stir medicinal extract to dissolve, staticly settle, centrifugal segregation supernatant liquor is precipitated thing, throw out adds ethanol again to carry out leaving standstill after stirring, and centrifugal collecting precipitate, obtains sterling astragalus polysaccharides.
Originally be the extraction yield of embodiment astragalus polysaccharides be 6.5%.
embodiment 2
1) crude extract obtains: dry astragalus root raw material 1kg, cleaning, dry, pulverize after add 10 times of water (cleaning for by clean water 2 times, pulverize as astragalus membranaceus powder is broken to 100 orders), ebuillition of heated extracts 3 times, and united extraction liquid leaves standstill and cools, and obtains crude extract;
2) concentration and evaporation: add the natural botanical extraction liquid finings KBT-ZTC produced by Ke Lier bio tech ltd in the crude extract that step 1) obtains, add-on is 10g/L, after leaving standstill 20min, rotary evaporation concentrates crude extract, is the medicinal extract of 1.0, obtains medicinal extract crude product to water proportion d;
3) removal of impurities is dissolved: in step 2) add ethanol in the medicinal extract crude product that obtains, the add-on of ethanol is 2 times of volumes of medicinal extract, stir medicinal extract to dissolve, staticly settle, centrifugal segregation supernatant liquor is precipitated thing, throw out adds ethanol again to carry out leaving standstill after stirring, and centrifugal collecting precipitate, obtains sterling astragalus polysaccharides.
Originally be the extraction yield of embodiment astragalus polysaccharides be 7.5%.
embodiment 3
1) crude extract obtains: dry astragalus root raw material 1kg, cleaning, dry, pulverize after add 8 times of water (cleaning for by clean water 3 times, pulverize as astragalus membranaceus powder is broken to 75 orders), ebuillition of heated extracts 3 times, and united extraction liquid leaves standstill and cools, and obtains crude extract;
2) concentration and evaporation: add the natural botanical extraction liquid finings KBT-ZTC produced by Ke Lier bio tech ltd in the crude extract that step 1) obtains, add-on is 7.5g/L, after leaving standstill 25min, rotary evaporation concentrates crude extract, is the medicinal extract of 1.20, obtains medicinal extract crude product to water proportion d;
3) removal of impurities is dissolved: in step 2) add ethanol in the medicinal extract crude product that obtains, the add-on of ethanol is 3 times of volumes of medicinal extract, stir medicinal extract to dissolve, staticly settle, centrifugal segregation supernatant liquor is precipitated thing, throw out adds ethanol again to carry out leaving standstill after stirring, and centrifugal collecting precipitate, obtains sterling astragalus polysaccharides.
Originally be the extraction yield of embodiment astragalus polysaccharides be 12.5%.
application Example 1
Astragalus polysaccharides is admixed in the feed for nursing of pig according to certain ratio and (is added 50g astragalus polysaccharides in the feed of 1kg), a meal is fed in three meals in a day, the immunizing power of animal can be significantly improved, sickness rate has been reduced to 18.5% from initial 30%, the health realizing animal is raised, reduce the treatment of microbiotic, hormonal medicaments, realize ecological raising, improve livestock-raising economic worth.
application Example 2
Astragalus polysaccharides is admixed in the feed for nursing of ox according to certain ratio and (is added 65g astragalus polysaccharides in the feed of 1kg), a meal is fed in three meals in a day, the immunizing power of animal can be significantly improved, sickness rate has been reduced to 20.5% from initial 32%, the health realizing animal is raised, reduce the treatment of microbiotic, hormonal medicaments, realize ecological raising, improve livestock-raising economic worth.
The above embodiment of the present invention scheme is only can not limit the present invention to explanation of the present invention, scope of the present invention is indicated in claim, and scope of the present invention is not pointed out in above-mentioned explanation, therefore, any change in the implication suitable with claims of the present invention and scope, is all considered to be and is included in the scope of claims.
The present invention is through multidigit astragalus polysaccharides and extracts processing staff's long term operation experience accumulation, and created by creative work, it is in the leaching process at actual astragalus polysaccharides, it is more than 6.5% that the method can obtain astragalus polysaccharides extraction yield, the chemoprophylaxis treatments such as the astragalus polysaccharides obtained can be used for regulating animal immune in veterinary clinic, antiviral, antibiosis.
Claims (5)
1. utilize water extraction technology to produce a technique for astragalus polysaccharides, be raw material with the Radix Astragali, it is characterized in that, the method step comprises:
1) crude extract obtains: dry astragalus root raw material 1kg, and add the water of 5 ~ 10 times of volumes after cleaning, drying, pulverizing, ebuillition of heated extracts 3 times, and united extraction liquid leaves standstill and cools, and obtains crude extract;
2) concentration and evaporation: add natural botanical extraction liquid finings KBT-ZTC in the crude extract that step 1) obtains, add-on is 5 ~ 10g/L, and after leaving standstill 20 ~ 30min, rotary evaporation concentrates crude extract, obtains medicinal extract crude product;
3) removal of impurities is dissolved: in step 2) add ethanol in the medicinal extract crude product that obtains, stir medicinal extract and dissolve, staticly settle, centrifugal segregation supernatant liquor is precipitated thing, throw out adds ethanol again to carry out leaving standstill after stirring, and centrifugal collecting precipitate, obtains sterling astragalus polysaccharides.
2. the technique utilizing water extraction technology to produce astragalus polysaccharides according to claim 1, is characterized in that, described cleaning is for using clean water 2 ~ 3 times; Described pulverizing is that astragalus membranaceus powder is broken to 50 ~ 100 orders.
3. the technique utilizing water extraction technology to produce astragalus polysaccharides according to claim 1, it is characterized in that, it is the medicinal extract of 1.0 ~ 1.50 that crude extract is evaporated to water proportion d by described rotary evaporation simmer down to.
4. the technique utilizing water extraction technology to produce astragalus polysaccharides according to claim 1, it is characterized in that, in described step 3), the add-on of ethanol is 2 ~ 5 times of volumes of medicinal extract.
5. the technique utilizing water extraction technology to produce astragalus polysaccharides according to claim 1, it is characterized in that, described natural botanical extraction liquid finings KBT-ZTC is the finings that You Ke Lier bio tech ltd produces.
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Cited By (2)
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| CN106107340A (en) * | 2016-06-23 | 2016-11-16 | 甘肃赫博陇药科技有限责任公司 | A kind of antioxidation resisting fatigue Radix Astragali drinks and preparation technology thereof |
| CN114573728A (en) * | 2022-04-02 | 2022-06-03 | 江西成必信生物科技有限公司 | Extraction process of astragalus polysaccharide extract |
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| CN103382228A (en) * | 2013-07-31 | 2013-11-06 | 瑞普（天津）生物药业有限公司 | Preparation method for high-activity astragalus polysaccharide |
| CN103980375A (en) * | 2014-05-20 | 2014-08-13 | 河南中烟工业有限责任公司 | Astragalus polysaccharide, extracting and purifying method and application thereof as tobacco moistening agent |
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Patent Citations (3)
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| CN103130905A (en) * | 2013-01-09 | 2013-06-05 | 华东理工大学 | Herbage plant polysaccharide purification method by utilization of microwave-assisted extraction and integration flocculation technology |
| CN103382228A (en) * | 2013-07-31 | 2013-11-06 | 瑞普（天津）生物药业有限公司 | Preparation method for high-activity astragalus polysaccharide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106107340A (en) * | 2016-06-23 | 2016-11-16 | 甘肃赫博陇药科技有限责任公司 | A kind of antioxidation resisting fatigue Radix Astragali drinks and preparation technology thereof |
| CN114573728A (en) * | 2022-04-02 | 2022-06-03 | 江西成必信生物科技有限公司 | Extraction process of astragalus polysaccharide extract |
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