CN104689600B - The extraction of Folium Kaki total flavones and purification process - Google Patents
The extraction of Folium Kaki total flavones and purification process Download PDFInfo
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- REFJWTPEDVJJIY-UHFFFAOYSA-N Quercetin Chemical compound C=1C(O)=CC(O)=C(C(C=2O)=O)C=1OC=2C1=CC=C(O)C(O)=C1 REFJWTPEDVJJIY-UHFFFAOYSA-N 0.000 description 2
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
The invention discloses the extraction of a kind of Folium Kaki total flavones and purification process, comprise the following steps: (1) Folium Kaki water extraction, obtain Folium Kaki crude extract;(2) Folium Kaki crude extract adds extractant, multistage centrifugal extraction equipment carries out multistage centrifugal extraction, it is thus achieved that organic solvent phase;(3) adopt the mode of one-stage centrifugal back extraction remove organic solvent mutually in impurity, collect and remove the organic solvent phase after impurity, concentration, dry, obtain highly purified Folium Kaki total flavones.The extraction of the present invention and purification process overcome Emulsification effect existing in existing Folium Kaki total flavones extraction process, significantly reduce the consumption of organic solvent, effectively reduce production cost, shorten the production cycle, and prouctiveness is high.Detecting through HPLC method, the inventive method is obtained in that highly purified Folium Kaki total flavones, and product total flavones purity reaches as high as 99.3%.
Description
Technical field
The present invention relates to the extracting method of a kind of total flavones, particularly relate to extraction and the purification process of Folium Kaki total flavones, belong to extraction and the purification art of Folium Kaki total flavones.
Background technology
Folium Kaki is the fresh or dried leaves of plant persimmon (DiospyroskakiThunb.).Modern science analysis finds, Folium Kaki is except containing abundant vitamin C, possibly together with triterpenoid compound, tannins and substantial amounts of flavone compound, such as Quercetin, kaempferol, isoquercitrin etc..Research find Folium Kaki there is antibacterial, antiinflammatory, invigorate blood circulation, blood pressure lowering, blood fat reducing, anticancer, removing chloasma effect, can extensive exploitation for fields such as food, medicine and cosmetics.Wherein, Folium Kaki total flavones has the pharmacological actions such as activating blood circulation to dissipate blood stasis, dredging collateral, hemostasis, antioxidation, anticancer, blood sugar lowering, blood pressure lowering, blood fat reducing, it is clinically used for treatment coronary heart disease, cerebral arteriosclerosis, determined curative effect (Cao Shan etc., Folium Kaki total flavones pharmacological research and clinical practice thereof are inquired into, traditional Chinese medical science journal, the 2012, the 27th volume, total 171st phase, p987-989).
Obtain the most important for guaranteeing Folium Kaki extract performance medical treatment and health-care effect of highly purified Folium Kaki total flavones.Prepare the method for higher degree Folium Kaki total flavones at present to be usually first Folium Kaki and carry precipitate with ethanol or containing alcohol water raises Folium Kaki crude flavonoid powder through water (or aqueous alkali), obtain sterling total flavones by refining further for Folium Kaki crude flavonoid powder.The technique that Folium Kaki crude flavonoid powder is refined mainly has ethyl acetate repeatedly extraction and macroreticular resin absorbing method.Because problems such as emulsifyings, adopt the process for purification that ethyl acetate repeatedly extracts to there is the comparatively serious problems such as production cycle length, product purity are not high, solvent expends greatly, power consumption is high, efficiency-cost ratio is low, seriously constrain industrialized production.When adopting resin adsorption method to carry out refining, owing to resin inevitably deterioration in use causes the uncertainty of technological parameter, ultimately result in product quality shakiness;Additionally, adopt resin adsorption method to carry out the refining problems such as to there is also solvent-oil ratio big, production cycle length, it would be highly desirable to improve.
Summary of the invention
The technical problem to be solved is to provide extraction and the purification process of a kind of new Folium Kaki total flavones, and the method is with short production cycle, it is high to expend few, the prepared total flavones purity of solvent.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The extraction of a kind of Folium Kaki total flavones and purification process, comprise the following steps:
(1) Folium Kaki water extraction, obtains Folium Kaki crude extract;(2) Folium Kaki crude extract adds extractant, adopt the mode that multistage centrifugal extracts to obtain organic solvent phase in multistage centrifugal extraction equipment;(3) adopt the mode of one-stage centrifugal back extraction remove organic solvent mutually in impurity, collect and remove the organic solvent phase after impurity, concentration, dry, obtain high-purity Folium Kaki total flavones.
Preferably, dry Folium Kaki is added 8-12 times of quality water by step (1), decocts 2 times, decoct 0.5-2h every time, merge decoction liquor, be evaporated to the extractum of proportion 1.01-1.15, obtain Folium Kaki crude extract;
In step (2), counting by volume, the ratio of Folium Kaki crude extract and extractant is preferably 1:0.3-1.2;Described extractant include but not limited in ethyl acetate, methyl acetate, butyl acetate, n-butyl alcohol or dichloromethane any or multiple according to arbitrary proportion composition mixture, it is preferred to ethyl acetate;
Multistage centrifugal described in step (2) extracts and is preferably 2-10 level Centrifugical extraction, more preferably 3-6 level Centrifugical extraction, it is particularly preferred to be 5 grades of Centrifugical extractions;Described centrifugal rotational speed is 1000-10000rpm, it is preferred to 1500-8000rpm, and optimum is 2000-3000rpm.
Described in step (3) adopt one-stage centrifugal back extraction mode remove organic solvent mutually in impurity include to organic solvent mutually in add deionized water be centrifuged back extraction;Preferably, counting by volume, the ratio of organic solvent phase and deionized water is 1:0.3-1.2;The preferred 1000-10000rpm of described centrifugal rotational speed, it is preferred to 1500-8000rpm, optimum is 2000-3000rpm.
The extraction of Folium Kaki total flavones of the present invention and purification process, separation efficiency is high, with short production cycle;Overcoming Emulsification effect existing in existing extraction Folium Kaki total flavones process, significantly reduce the consumption of organic solvent, effectively reduce production cost, production efficiency is high;Detecting through HPLC method, the inventive method is obtained in that highly purified Folium Kaki total flavones product, and total flavones purity reaches as high as 99.3%.The refining Folium Kaki total flavones that the present invention extracts may be used for medicine, food, health product, the raw material of cosmetics or additive, of many uses.
Accompanying drawing explanation
Fig. 1 is the process chart of the refining Folium Kaki total flavones of Centrifugical extraction of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment further describe the present invention, advantages of the present invention and feature will be with describe and apparent.It should be understood that described embodiment is only exemplary, the scope of the present invention is not constituted any restriction.It will be understood by those skilled in the art that and the details of technical solution of the present invention and form can be modified or replace lower without departing from the spirit and scope of the present invention, but these amendments or replacement each fall within protection scope of the present invention.
Illustrate: in following example, used Folium Kaki is all same source, the Folium Kaki of same batch, is absent from any substantial differences.
Embodiment 1
Weighing Folium Kaki coarse powder (30 order) 100g, add water 1000ml, micro-decoction 60min that boils, and leaches decoction liquor;Filtering residue add water 800ml micro-boil decoction 35min, merge decoction liquor, be evaporated to the extractum of proportion 1.03, obtain Folium Kaki crude extract;Folium Kaki crude extract is pumped into plural serial stage centrifugal extractor (purchased from Zhong Wo Machinery Co., Ltd. of Zhangjagang City, CTL50 type centrifugal extractor), pump into isopyknic ethyl acetate solution simultaneously, unlatching centrifugal rotational speed is 2000rpm, carry out 5 grades of series connection Centrifugical extractions, collect organic solvent phase;When centrifugal stripping cells, pumping into and the deionized water of organic solvent equal volume, unlatching centrifugal rotational speed is 2000rpm, being centrifuged back extraction, collect the ethyl acetate solution after the back extraction removal of impurity, decompression and solvent recovery is to dry, gained dried object is complete at 50 DEG C of drying under reduced pressure further, to obtain final product.
Adopt the Pharmacopoeia of the People's Republic of China 2010 editions regulation HPLC to analyze method and measure the purity of product total flavones;Measurement result: the purity of product total flavones is 99.3%.
Embodiment 2
Weighing Folium Kaki coarse powder (30 order) 1000g, add water 12000ml, micro-decoction 50min that boils, and leaches decoction liquor;Filtering residue add water 8000ml micro-boil decoction 30min, merge decoction liquor, be evaporated to proportion 1.09, obtain Folium Kaki crude extract;Folium Kaki crude extract is pumped into plural serial stage centrifugal extractor (purchased from Zhong Wo Machinery Co., Ltd. of Zhangjagang City, CTL50 type centrifugal extractor), pump into isopyknic ethyl acetate solution simultaneously, unlatching centrifugal rotational speed is 6000rpm, carry out 2 grades of series connection Centrifugical extractions, collect organic solvent phase;When centrifugal stripping cells, pumping into and the deionized water of organic solvent equal volume, unlatching centrifugal rotational speed is 6000rpm, being centrifuged back extraction, collect the ethyl acetate solution after the back extraction removal of impurity, decompression and solvent recovery is to dry, gained dried object is complete at 50 DEG C of drying under reduced pressure further, to obtain final product.
Adopt the Pharmacopoeia of the People's Republic of China 2010 editions regulation HPLC to analyze method and measure the purity of product total flavones;Measurement result: the purity of product total flavones is 89.2%.
Embodiment 3
Weighing Folium Kaki coarse powder (30 order) 100g, add water 1200ml, micro-decoction 90min that boils, and leaches decoction liquor;Filtering residue add water 1000ml micro-boil decoction 45min, merge decoction liquor, be evaporated to proportion 1.08, obtain Folium Kaki crude extract;Folium Kaki crude extract is pumped into plural serial stage centrifugal extractor (purchased from Zhong Wo Machinery Co., Ltd. of Zhangjagang City, CTL50 type centrifugal extractor), pump into isopyknic butanol solution simultaneously, unlatching centrifugal rotational speed is 5000rpm, carry out 3 grades of series connection Centrifugical extractions, collect organic solvent phase;When centrifugal stripping cells, pumping into and the deionized water of organic solvent equal volume, unlatching centrifugal rotational speed is 5000rpm, being centrifuged back extraction, collect the butanol solution after the back extraction removal of impurity, decompression and solvent recovery is to dry, gained dried object is complete at 50 DEG C of drying under reduced pressure further, to obtain final product.
Adopt the Pharmacopoeia of the People's Republic of China 2010 editions regulation HPLC to analyze method and measure the purity of product total flavones;Measurement result: the purity of product total flavones is 88.6%.
Embodiment 4
Weighing Folium Kaki coarse powder (30 order) 100g, add water 1000ml, micro-decoction 60min that boils, and leaches decoction liquor;Filtering residue add water 800ml micro-boil decoction 35min, merge decoction liquor, be evaporated to the extractum of proportion 1.06, obtain Folium Kaki crude extract;Folium Kaki crude extract is pumped into plural serial stage centrifugal extractor (purchased from Zhong Wo Machinery Co., Ltd. of Zhangjagang City, CTL50 type centrifugal extractor), pump into isopyknic methyl acetate solution simultaneously, unlatching centrifugal rotational speed is 2000rpm, carry out 3 grades of series connection Centrifugical extractions, collect organic solvent phase;When centrifugal stripping cells, pumping into and the deionized water of organic solvent equal volume, unlatching centrifugal rotational speed is 2000rpm, being centrifuged back extraction, collect the methyl acetate solution after the back extraction removal of impurity, decompression and solvent recovery is to dry, gained dried object is complete at 50 DEG C of drying under reduced pressure further, to obtain final product.
Adopt the Pharmacopoeia of the People's Republic of China 2010 editions regulation HPLC to analyze method and measure the purity of product total flavones;Measurement result: the purity of product total flavones is 87.4%.
Embodiment 5
Weighing Folium Kaki coarse powder (30 order) 100g, add water 1000ml, micro-decoction 60min that boils, and leaches decoction liquor;Filtering residue add water 800ml micro-boil decoction 35min, merge decoction liquor, be evaporated to the extractum of proportion 1.06, obtain Folium Kaki crude extract;Folium Kaki crude extract is pumped into plural serial stage centrifugal extractor (purchased from Zhong Wo Machinery Co., Ltd. of Zhangjagang City, CTL50 type centrifugal extractor), pump into isopyknic butyl acetate solution simultaneously, unlatching centrifugal rotational speed is 5000rpm, carry out 5 grades of series connection Centrifugical extractions, collect organic solvent phase;When centrifugal stripping cells, pumping into and the deionized water of organic solvent equal volume, unlatching centrifugal rotational speed is 5000rpm, being centrifuged back extraction, collect the butyl acetate solution after the back extraction removal of impurity, decompression and solvent recovery is to dry, gained dried object is complete at 50 DEG C of drying under reduced pressure further, to obtain final product.
Adopt the Pharmacopoeia of the People's Republic of China 2010 editions regulation HPLC to analyze method and measure the purity of product total flavones;Measurement result: the purity of product total flavones is 96.3%.
Embodiment 6
Weighing Folium Kaki coarse powder (30 order) 100g, add water 800ml, micro-decoction 120min that boils, and leaches decoction liquor;Filtering residue add water 800ml micro-boil decoction 30min, merge decoction liquor, be evaporated to the extractum of proportion 1.09, obtain Folium Kaki crude extract;Folium Kaki crude extract is pumped into plural serial stage centrifugal extractor (purchased from Zhong Wo Machinery Co., Ltd. of Zhangjagang City, CTL50 type centrifugal extractor), pump into the butyl acetate solution of organic solvent 0.3 times of volume mutually simultaneously, unlatching centrifugal rotational speed is 2000rpm, carry out 4 grades of series connection Centrifugical extractions, collect organic solvent phase;When centrifugal stripping cells, pumping into and the deionized water of organic solvent equal volume, unlatching centrifugal rotational speed is 2000rpm, being centrifuged back extraction, collect the methyl acetate solution after the back extraction removal of impurity, decompression and solvent recovery is to dry, gained dried object is complete at 50 DEG C of drying under reduced pressure further, to obtain final product.
Adopt the Pharmacopoeia of the People's Republic of China 2010 editions regulation HPLC to analyze method and measure the purity of product total flavones;Measurement result: the purity of product total flavones is 84.1%.
Embodiment 7
Weighing Folium Kaki coarse powder (30 order) 100g, add water 800ml, micro-decoction 120min that boils, and leaches decoction liquor;Filtering residue add water 800ml micro-boil decoction 30min, merge decoction liquor, be evaporated to the extractum of proportion 1.01, obtain Folium Kaki crude extract;Folium Kaki crude extract is pumped into plural serial stage centrifugal extractor (purchased from Zhong Wo Machinery Co., Ltd. of Zhangjagang City, CTL50 type centrifugal extractor), pump into the methyl acetate solution of organic solvent 0.3 times of volume mutually simultaneously, unlatching centrifugal rotational speed is 2500rpm, carry out 5 grades of series connection Centrifugical extractions, collect organic solvent phase;When centrifugal stripping cells, pumping into and the deionized water of organic solvent equal volume, unlatching centrifugal rotational speed is 2500rpm, being centrifuged back extraction, collect the methyl acetate solution after the back extraction removal of impurity, decompression and solvent recovery is to dry, gained dried object is complete at 50 DEG C of drying under reduced pressure further, to obtain final product.
Adopt the Pharmacopoeia of the People's Republic of China 2010 editions regulation HPLC to analyze method and measure the purity of product total flavones;Measurement result: the purity of product total flavones is 97.9%.
Embodiment 8
Weighing Folium Kaki coarse powder (30 order) 1000g, add water 12000ml, micro-decoction 50min that boils, and leaches decoction liquor;Filtering residue add water 8000ml micro-boil decoction 30min, merge decoction liquor, be evaporated to proportion 1.02, obtain Folium Kaki crude extract;Folium Kaki crude extract is pumped into plural serial stage centrifugal extractor (purchased from Zhong Wo Machinery Co., Ltd. of Zhangjagang City, CTL50 type centrifugal extractor), pump into isopyknic butyl acetate solution simultaneously, unlatching centrifugal rotational speed is 3000rpm, carry out 6 grades of series connection Centrifugical extractions, collect organic solvent phase;When centrifugal stripping cells, pumping into and the deionized water of organic solvent equal volume, unlatching centrifugal rotational speed is 3000rpm, being centrifuged back extraction, collect the butyl acetate solution after the back extraction removal of impurity, decompression and solvent recovery is to dry, gained dried object is complete at 50 DEG C of drying under reduced pressure further, to obtain final product.
Adopt the Pharmacopoeia of the People's Republic of China 2010 editions regulation HPLC to analyze method and measure the purity of product total flavones;Measurement result: the purity of product total flavones is 90.8%.
Claims (8)
1. the extraction of a Folium Kaki total flavones and purification process, it is characterised in that step is as follows:
(1) Folium Kaki water extraction, obtains Folium Kaki crude extract;(2) Folium Kaki crude extract adds extraction organic solvent, multistage centrifugal extraction equipment carries out multistage centrifugal extraction, it is thus achieved that organic solvent phase;(3) adopt the mode of one-stage centrifugal back extraction remove organic solvent mutually in impurity, collect and remove the organic solvent phase after impurity, concentration, dry, to obtain final product;Wherein, the multistage centrifugal described in step (2) extracts is 5 grades of Centrifugical extractions;Described centrifugal rotational speed is 2000-3000rpm;The centrifugal rotational speed of the one-stage centrifugal back extraction described in step (3) is 2000-3000rpm.
2. extraction described in claim 1 and purification process, it is characterised in that: dry Folium Kaki is added 8-12 times of quality water by step (1), decocts 2 times, decoct 0.5-2h every time, merge decoction liquor, be evaporated to the extractum of proportion 1.01-1.15, obtain Folium Kaki crude extract.
3. extraction described in claim 2 and purification process, it is characterised in that: dry Folium Kaki is added 10 times of quality water by step (1), decocts 2 times, decoct 35-60min every time, merge decoction liquor, be evaporated to the extractum of proportion 1.06, obtain Folium Kaki crude extract.
4. extraction described in claim 1 and purification process, it is characterised in that: in step (2), counting by volume, the ratio of Folium Kaki crude extract and extractant is 1:0.3-1.2.
5. extraction described in claim 1 and purification process, it is characterised in that: described extractant includes but not limited to any or multiple mixture according to arbitrary proportion composition in ethyl acetate, methyl acetate, butyl acetate, n-butyl alcohol or dichloromethane.
6. extraction described in claim 5 and purification process, it is characterised in that: described extractant is ethyl acetate.
7. extraction described in claim 1 and purification process, it is characterised in that: in step (3) to organic solvent mutually in add deionized water and be centrifuged back extraction.
8. extraction described in claim 7 and purification process, it is characterised in that: counting by volume, the ratio of organic solvent phase and aqueous phase is 1:0.3-1.2.
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JP2009215253A (en) * | 2008-03-12 | 2009-09-24 | Tama Seikagaku Kk | Carbohydrate metabolism control substance originated from persimmon leaf and persimmon branch |
CN101637492A (en) * | 2009-08-31 | 2010-02-03 | 陕西师范大学 | Preparation method of total flavonoids in persimmon leaves and application of total flavonoids in liver-protecting drugs and health foods |
CN101744863A (en) * | 2010-01-29 | 2010-06-23 | 广州白云山和记黄埔中药有限公司 | Persimmon leaf extract preparation, preparing method thereof and application thereof |
KR20120121684A (en) * | 2011-04-27 | 2012-11-06 | 주식회사 에버미라클 | Antipruritic composition containing astragalin and quercetin |
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CN101637492A (en) * | 2009-08-31 | 2010-02-03 | 陕西师范大学 | Preparation method of total flavonoids in persimmon leaves and application of total flavonoids in liver-protecting drugs and health foods |
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