CN100534425C - Method for preparing total flavones of bastardtoad flax - Google Patents
Method for preparing total flavones of bastardtoad flax Download PDFInfo
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- CN100534425C CN100534425C CNB2006100823911A CN200610082391A CN100534425C CN 100534425 C CN100534425 C CN 100534425C CN B2006100823911 A CNB2006100823911 A CN B2006100823911A CN 200610082391 A CN200610082391 A CN 200610082391A CN 100534425 C CN100534425 C CN 100534425C
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- herba thesii
- total flavones
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Abstract
Disclosed is a process for preparing total flavonoids of thesium Chinese turcz comprising the following steps: (1) preparing crude extract of thesium Chinese turcz, preparing flavones through macroscopic adsorption resin column method, the process can realize a content of the total flavones to 8%, 20% and 52%.
Description
The present invention by number of patent application is: 2005100249320, and name of patent application is: " preparation method of Herba Thesii total flavones ", patent application is artificial: Shanghai Communications University, patent application day is: the patent on April 7th, 2005 is divided an application.
Technical field
The present invention relates to a kind of preparation method of total flavones, specifically, is a kind of preparation method of Herba Thesii total flavones.Belong to the Chinese drug preparation technique field.
Background technology
Herba Thesii is the dry herb of Santalaceae (Santalaceae) plant Herba Thesii (Thesium chinense Turcz.) or its mutation long stalk Herba Thesii (Thesium chinense Turcz.Var longipedunculatum).The Herba Thesii acrid in the mouth, little hardship, cold in nature.Return lung, spleen, kidney channel.All herbal medicine has heat-clearing and toxic substances removing, the effect of the kidney invigorating arresting seminal emission.Be used for the treatment of acute mastitis, acute tonsillitis, upper respiratory tract infection, pneumonia, various inflammation such as pharyngitis more.Chemistry and pharmacological research show that the main effective content of anti inflammation of Herba Thesii is thesine I (glucose-rhamnoside of kaempferol), thesine II (glucose of kaempferol) and thesine III flavone compounds such as (kaempferols).
Find that by prior art documents Xu Leiming etc. are in " determined by ultraviolet spectrophotometry Herba Thesii total flavones content " (" basic unit's Chinese medicine magazine ", 1995,9 (4): 29-310) propose in the literary composition: prepare Herba Thesii total flavones with three kinds of diverse ways.Decoction and alcohol sedimentation technique wherein, general flavone content is 1.255%; Wine dipper method, general flavone content are 1.785%; Obtain best preparation method by orthogonal test, general flavone content also only is 2.063%.Its weak point is: the raw material that the Herba Thesii preparation uses is the crude extract of Herba Thesii, and effective site is indeterminate, and content of total flavone is low.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of preparation method of Herba Thesii total flavones is provided, make it adopt complexing of metal ion method, macroporous adsorbent resin method, polyamide column chromatography legal system to be equipped with Herba Thesii total flavones, make general flavone content reach 8%, 20%, 52% respectively, adopt the Herba Thesii total flavones of these methods preparation can be used for various Herba Thesii preparations, make the effective ingredient of preparation clear and definite, quality controllable, clinical efficacy is good.
The present invention is achieved through the following technical solutions, and concrete steps of the present invention are as follows:
1, the preparation of Herba Thesii crude extract
With the Herba Thesii cleaning, drying, pulverized 40 mesh sieves, with 20 times of amount 70% alcohol reflux 2 hours, filter, medicinal residues were measured 70% alcohol reflux 1 hour with 10 times, filter, merge above-mentioned filtrate, left standstill 12 hours, 4000 rev/mins centrifugal 10 minutes, get supernatant, decompression recycling ethanol, 40 ℃ of drying under reduced pressure obtain the brown extract, this crude extract are used for the preparation of Herba Thesii total flavones.
2, the further extraction to the Herba Thesii crude extract has following three kinds of methods:
Method 1): the complexing of metal ion legal system is equipped with total flavones
The Herba Thesii crude extract is added 10 times of amount 95% dissolve with ethanols, drip 3 times of amount 1% basic lead acetate aqueous solutions while stirring gradually, left standstill 0.5 hour, precipitation, sucking filtration add 10 times of amount 95% ethanol and make suspension to doing in precipitation, stir and drip 1.5 times of amount 5% aqueous sodium carbonates down, left standstill 0.5 hour, and filtered, collect filtrate, dilute hydrochloric acid transfers pH value to neutral, decompression recycling ethanol, thin up are to original volume, and aqueous solution is measured n-butanol extractions 2 times with 2 times, the reclaim under reduced pressure n-butyl alcohol, 40 ℃ of drying under reduced pressure get Herba Thesii total flavones, and yield is 8.3%～8.5% (in crude drug); With the aluminum chloride colour developing, the spectrophotometry general flavone content is 7%～8%.
Method 2): the macroporous adsorbent resin legal system is equipped with total flavones
The Herba Thesii crude extract is added 3 times of water dilutions, put on 20 times of low polarity HZ-80 macroporous adsorption resin chromatography posts of amount column chromatography for separation, water flushing chromatographic column, to effluent colourless till, use 60% ethanol then, the flushing chromatographic column, till not having flavone reaction to effluent, merge above-mentioned 60% ethanol stream fluid, decompression recycling ethanol, 40 ℃ of drying under reduced pressure, get Herba Thesii total flavones, yield is 4.5%～4.7% (in crude drug); With the aluminum chloride colour developing, spectrophotometry content is 19%～20%.
Method 3): the polyamide column chromatography legal system is equipped with total flavones
The Herba Thesii crude extract is added 0.3～1 times of column chromatography polyamide powder to stir, 50 ℃ of dryings, dry back powder is put on 4～5 times of amount polyamide chromatographic columns, column chromatography for separation, water flushing chromatographic column to effluent colourless till, use 30% ethanol then, 50% ethanol and 70% ethanol, the flushing chromatographic column, respectively with thesine I, thesine II and thesine III be product in contrast, and thin layer chromatography detects the effluent composition, merge stream part of containing the Herba Thesii flavone, decompression recycling ethanol, 40 ℃ of drying under reduced pressure get Herba Thesii total flavones, and yield is 1.8%～2.3%; With the aluminum chloride colour developing, spectrophotometry content is 50%～52%.
The invention has the beneficial effects as follows: in three kinds of Herba Thesii total flavones preparation methoies, complexing of metal ion method technology is simple, and the yield height is suitable for mass preparation, and general flavone content reaches 8%, and the gained total flavones can be used for the preparation of solid preparation; The macroporous adsorbent resin method, technology is fairly simple, and the total flavones yield is higher, and general flavone content can reach 20%, is fit to commercial production, and the gained total flavones can be used for the preparation of solid preparation; Though polyamide column chromatography method technology more complicated, general flavone content can reach more than 50%, is suitable for preparing highly purified Herba Thesii total flavones, and the gained total flavones can be used for the preparation of solid preparation and injection.
The specific embodiment
Example 1
Get exsiccant Herba Thesii medical material, pulverized 40 mesh sieves, take by weighing 25g, add 70% ethanol 500ml, heating and refluxing extraction 2 hours is filtered, medicinal residues add 70% ethanol 250ml again, reflux filter and remove residue 1 hour, merging filtrate, left standstill 12 hours, 4000 rev/mins centrifugal 10 minutes, get supernatant, decompression recycling ethanol, 40 ℃ of drying under reduced pressure.With crude extract 60ml95% dissolve with ethanol, drip 1% basic lead acetate aqueous solution 20ml while stirring, left standstill precipitation 0.5 hour; The precipitation sucking filtration adds 95% ethanol 60ml and suspends, while stirring Dropwise 5 % aqueous sodium carbonate 10ml to doing, left standstill 0.5 hour, precipitation is filtered, filtrate adds dilute hydrochloric acid and transfers pH value to neutral, decompression recycling ethanol adds water to 60ml, adds the 120ml n-butanol extraction 2 times, the reclaim under reduced pressure n-butyl alcohol, 40 ℃ of drying under reduced pressure obtain 2.12g brownish red powder, and yield is 8.48% (in crude drug).The aluminum chloride colour developing, spectrophotometry content is 7.2%.
Example 2
Get exsiccant Herba Thesii medical material, pulverized 40 mesh sieves, take by weighing 5g, add 70% ethanol 100ml, reflux 2 hours is filtered, and medicinal residues add 70% ethanol 50ml again, refluxed 1 hour, filter and remove residue, merging filtrate left standstill 12 hours, 4000 rev/mins centrifugal 10 minutes, get supernatant, decompression recycling ethanol, surplus liquid adds water to 50ml, put on the HZ-80 macroporous adsorption resin chromatography post that 100g handles well, through absorption after, adding distil water wash to effluent colourless till, use 60% ethanol then, 10ml/min washes chromatographic column, do not have flavone reaction to effluent till.Merge above-mentioned 60% ethanol stream fluid, decompression recycling ethanol, 40 ℃ of drying under reduced pressure obtain 0.235g brownish red powder, and yield is 4.7% (in crude drug).The aluminum chloride colour developing, spectrophotometry content is 19.7%.
Example 3
Get exsiccant Herba Thesii medical material, pulverized 40 mesh sieves, take by weighing 10g, add 70% ethanol 200ml, reflux 2 hours is filtered, medicinal residues add 70% ethanol 100ml again, reflux filter and remove residue 1 hour, merging filtrate, left standstill 12 hours, 4000 rev/mins centrifugal 10 minutes, get supernatant, decompression recycling ethanol obtains the 3.5g extract behind 40 ℃ of drying under reduced pressure; The Herba Thesii crude extract is added 0.3 times of column chromatography polyamide powder stir, 50 ℃ of dryings; Dry back powder is put on 4 times of amount polyamide chromatographic columns, adding distil water wash to effluent colourless till, use 30% ethanol, 50% ethanol and 70% ethanol then successively, 10ml/min washes chromatographic column, simultaneously with thesine I, thesine II and thesine III product in contrast, thin layer chromatography detects the effluent composition; Merge and contain a large amount of Herba Thesii flavone stream parts, decompression recycling ethanol, 40 ℃ of drying under reduced pressure obtain the pale brown toner of 0.23g end, and yield is 2.3% (in crude drug).The aluminum chloride colour developing, spectrophotometry content is 50.5%.
Example 4
Get exsiccant Herba Thesii medical material, pulverized 40 mesh sieves, take by weighing 10g, add 70% ethanol 200ml, reflux 2 hours is filtered, medicinal residues add 70% ethanol 100ml again, reflux filter and remove residue 1 hour, merging filtrate, left standstill 12 hours, 4000 rev/mins centrifugal 10 minutes, get supernatant, decompression recycling ethanol obtains the 3.5g extract behind 40 ℃ of drying under reduced pressure; The Herba Thesii crude extract is added 0.5 times of column chromatography polyamide powder stir, 50 ℃ of dryings; Dry back powder is put on 4.5 times of amount polyamide chromatographic columns, adding distil water wash to effluent colourless till, use 30% ethanol, 50% ethanol and 70% ethanol then successively, 10ml/min washes chromatographic column, simultaneously with thesine I, thesine II and thesine III product in contrast, thin layer chromatography detects the effluent composition; Merge and contain a large amount of Herba Thesii flavone stream parts, decompression recycling ethanol, 40 ℃ of drying under reduced pressure obtain the pale brown toner of 0.21g end, and yield is 2.1% (in crude drug).The aluminum chloride colour developing, spectrophotometry content is 50.9%.
Example 5
Get exsiccant Herba Thesii medical material, pulverized 40 mesh sieves, take by weighing 10g, add 70% ethanol 200ml, reflux 2 hours is filtered, medicinal residues add 70% ethanol 100ml again, reflux filter and remove residue 1 hour, merging filtrate, left standstill 12 hours, 4000 rev/mins centrifugal 10 minutes, get supernatant, decompression recycling ethanol obtains the 3.5g extract behind 40 ℃ of drying under reduced pressure; The Herba Thesii crude extract is added 1 times of column chromatography polyamide powder stir, 50 ℃ of dryings; Dry back powder is put on 5 times of amount polyamide chromatographic columns, adding distil water wash to effluent colourless till, use 30% ethanol, 50% ethanol and 70% ethanol then successively, 10ml/min washes chromatographic column, simultaneously with thesine I, thesine II and thesine III product in contrast, thin layer chromatography detects the effluent composition; Merge and contain a large amount of Herba Thesii flavone stream parts, decompression recycling ethanol, 40 ℃ of drying under reduced pressure obtain the pale brown toner of 0.18g end, and yield is 1.8% (in crude drug).The aluminum chloride colour developing, spectrophotometry content is 52.0%.
Claims (5)
1, a kind of preparation method of Herba Thesii total flavones is characterized in that, step is as follows:
1) preparation of Herba Thesii crude extract
With the Herba Thesii cleaning, drying, pulverize, use alcohol reflux, filter, the medicinal residues alcohol reflux filters, and merges above-mentioned filtrate, leaves standstill, and is centrifugal, get supernatant, decompression recycling ethanol, drying under reduced pressure obtain the brown extract, this crude extract are used for the preparation of Herba Thesii total flavones;
2) the macroporous adsorbent resin legal system is equipped with total flavones
With above-mentioned crude extract thin up, put on the low polarity Hz one 80 macroporous adsorption resin chromatography posts column chromatography for separation, water flushing chromatographic column is used the alcohol flushing chromatographic column then, merges above-mentioned ethanol stream fluid, decompression recycling ethanol, drying under reduced pressure gets Herba Thesii total flavones.
2, the preparation method of Herba Thesii total flavones according to claim 1 is characterized in that, and is described with the Herba Thesii pulverizing, crosses 40 mesh sieves then.
3, the preparation method of Herba Thesii total flavones according to claim 1 is characterized in that, described medicinal residues alcohol reflux filters, and merges above-mentioned filtrate, after leaving standstill, with 4000 rev/mins centrifugal, get supernatant.
4, the preparation method of Herba Thesii total flavones according to claim 1 is characterized in that, the described supernatant of getting, and behind the decompression recycling ethanol, 40 ℃ of drying under reduced pressure obtain the brown extract.
5, the preparation method of Herba Thesii total flavones according to claim 1 is characterized in that, described step 2) be meant: above-mentioned crude extract is added 3 times of water dilutions, put on 20 times of low polarity HZ one 80 macroporous adsorption resin chromatography posts of amount column chromatography for separation, water flushing chromatographic column, to effluent colourless till, use 60% ethanol then, the flushing chromatographic column, do not have flavone reaction to effluent till, merge above-mentioned 60% ethanol stream fluid, decompression recycling ethanol, 40 ℃ of drying under reduced pressure get Herba Thesii total flavones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100823911A CN100534425C (en) | 2005-04-07 | 2005-04-07 | Method for preparing total flavones of bastardtoad flax |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100823911A CN100534425C (en) | 2005-04-07 | 2005-04-07 | Method for preparing total flavones of bastardtoad flax |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510024932 Division CN1284546C (en) | 2005-04-07 | 2005-04-07 | Thesium Chinese total flavone preparation method |
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| CN1875998A CN1875998A (en) | 2006-12-13 |
| CN100534425C true CN100534425C (en) | 2009-09-02 |
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| CNB2006100823911A Expired - Fee Related CN100534425C (en) | 2005-04-07 | 2005-04-07 | Method for preparing total flavones of bastardtoad flax |
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- 2005-04-07 CN CNB2006100823911A patent/CN100534425C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 百蕊草口服液制备工艺比较研究. 刘本俊，武承英.时珍国医国药，第11卷第8期. 2000 |
| 百蕊草口服液制备工艺比较研究. 刘本俊，武承英.时珍国医国药，第11卷第8期. 2000 * |
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| CN1875998A (en) | 2006-12-13 |
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Granted publication date: 20090902 Termination date: 20120407 |