CN206033640U - Trichosanthes bark extraction of polysaccharide purification device - Google Patents

Trichosanthes bark extraction of polysaccharide purification device Download PDF

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Publication number
CN206033640U
CN206033640U CN201621049715.7U CN201621049715U CN206033640U CN 206033640 U CN206033640 U CN 206033640U CN 201621049715 U CN201621049715 U CN 201621049715U CN 206033640 U CN206033640 U CN 206033640U
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settling tank
concentration alcohol
outlet
inlet
condenser
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谌馥佳
谌必翀
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Huanghuai University
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Huanghuai University
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Abstract

The utility model provides a trichosanthes bark extraction of polysaccharide purification device, it is including drawing jar, concentrated alcohol precipitation tank, centrifuge, polysaccharide discoloring device, removing albumen device, polysaccharide separation and purification device, polysaccharide ultrafiltration separator, vacuum freezing desiccator, the discharge gate that draws jar with concentrated alcohol precipitation tank's inlet links to each other, concentrated alcohol precipitation tank's liquid outlet is connected centrifuge, centrifuge's discharge gate with polysaccharide discoloring device's feed inlet is connected, polysaccharide discoloring device's discharge gate with it is connected to remove albumen device feed inlet, the discharge gate that removes the albumen device with the feed inlet of polysaccharide separation and purification device is connected, polysaccharide separation and purification device intercommunication polysaccharide ultrafiltration separator, polysaccharide ultrafiltration separator intercommunication the vacuum freezing desiccator. This trichosanthes bark extraction of polysaccharide purification device has the advantage that the design is scientific, the practicality is strong, production efficiency is high and the product precision is high.

Description

Pericarpium Trichosanthiss Polyose extraction purification devices
Technical field
This utility model is related to a kind of material extraction equipment, specifically, relate to a kind of Pericarpium Trichosanthiss Polyose extraction purification Device.
Background technology
The process that chemical composition needed for plant tissue or effective ingredient are transferred out from basic stitch is as extracted. As in drug research from Pericarpium Trichosanthiss effective component extracting, it is however as the increasingly mature of extraction process, simple preliminary to extract Can not meet demand of the people to plant component extraction, how the preliminary material for extracting purified, be people urgently The problem of solution.Existing purifying technique mostly is laboratory equlpment purification, it is impossible to carry out the purification of big content of starting materials, purification efficiency is low Under, it is impossible to meet demand of the people to efficient Fast Purification.
In order to solve the problem with present on, people are seeking a kind of preferable technical solution always.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, so as to provide a kind of design science, practical, raw Produce the high Pericarpium Trichosanthiss Polyose extraction purification devices of efficiency high and Product Precision.
To achieve these goals, the technical scheme adopted by this utility model is:A kind of Pericarpium Trichosanthiss Polyose extraction purification Device, it include extraction pot, concentration Alcohol-settling tank, centrifuge, polysaccharide decoloration device, removing protein device, separation of polysaccharides purification devices, Polysaccharide ultra-filtration and separation device, vacuum freeze drier;
The discharging opening of the extraction pot is connected with the inlet of the concentration Alcohol-settling tank by vacuum pump, the concentration precipitate with ethanol The liquid outlet of tank connects the centrifuge;
The discharging opening of the centrifuge is connected with the charging aperture of the polysaccharide decoloration device by vacuum pump;The polysaccharide The discharging opening of decoloration device is connected with the removing protein device charging aperture by vacuum pump, the discharging opening of the removing protein device It is connected with the charging aperture of the separation of polysaccharides purification devices by vacuum pump;
The discharging opening of the separation of polysaccharides purification devices connects the polysaccharide ultra-filtration and separation device by vacuum pump, described many Sugared ultra-filtration and separation device connects the vacuum freeze drier by vacuum pump.
Based on above-mentioned, the extraction pot includes extracting tank body and stranded with the extraction tank body sealed bottom by gas lock Bottom;Material inlet, air relief valve and steam (vapor) outlet is provided with the top of the extraction tank body, and the extraction tank interior is provided with to be stirred Oar, ultrasonic transducer and filter is mixed, the discharging opening of the extraction pot is arranged on the bottom of the extraction pot.
Based on above-mentioned, oil water separator and condenser at the top of the extraction pot, is also associated with;It is provided with the condenser An inlet, an oil-out and are provided with one steam inlet and two condensate outlets, the oil water separator Individual outlet;The steam inlet of the condenser is connected with the steam (vapor) outlet of the extraction pot, the condenser one of them Condensate outlet is connected with the inlet of the concentration Alcohol-settling tank by vacuum pump;Another condensate outlet of the condenser It is connected with the inlet of the oil water separator;The outlet of the oil water separator passes through vacuum pump and the concentration Alcohol-settling tank Inlet be connected.
Based on above-mentioned, the concentration Alcohol-settling tank includes concentrating precipitate with ethanol tank body and close with the extraction tank base by gas lock The stranded bottom of envelope;Material inlet, air relief valve and steam (vapor) outlet, the concentration Alcohol-settling tank is provided with the top of the concentration Alcohol-settling tank It is internally provided with stirring paddle and filter;The inlet and liquid outlet of the concentration Alcohol-settling tank is arranged on the concentration Alcohol-settling tank bottom Cover, and Waste outlet is additionally provided with the concentration Alcohol-settling tank bottom.
Based on above-mentioned, at the top of the concentration Alcohol-settling tank, oil water separator and condenser is also associated with;Set on the condenser It is equipped with a steam inlet and two condensate outlets, the oil water separator and is provided with an inlet, an oil-out With an outlet;The steam inlet of the condenser is connected with the steam (vapor) outlet of the concentration Alcohol-settling tank, the condenser One of condensate outlet is connected with the inlet of the concentration Alcohol-settling tank by vacuum pump;Another of the condenser is cold Condensate outlet is connected with the inlet of the oil water separator;The outlet of the oil water separator is dense with described by vacuum pump The inlet of contracting Alcohol-settling tank is connected.
Preferably, a set of oil water separator and condenser is shared between the extraction pot and the concentration Alcohol-settling tank;It is described It is provided with condenser on four pipe joints, the oil water separator and is provided with three pipe joints;
On the condenser one of pipe joint be connected with the steam (vapor) outlet of the extraction pot, on the condenser Two pipe joints are connected with the steam (vapor) outlet of the concentration Alcohol-settling tank, on the condenser the 3rd pipe joint by vacuum Pump is connected with the inlet of the concentration Alcohol-settling tank, on the condenser on the 4th pipe joint and the oil water separator One of pipe joint is connected;
Second pipe joint on the oil water separator is used as oil-out, the 3rd on the oil water separator pipe Pipeline joint is connected with the steam (vapor) outlet of concentration Alcohol-settling tank and the inlet of the concentration Alcohol-settling tank respectively by three-way valve.
Based on above-mentioned, on the bottom for extracting tank body, can body heating jacket is additionally provided with;The concentration precipitate with ethanol tank body Can body heating jacket is additionally provided with bottom.
Based on above-mentioned, the polysaccharide decoloration device is internally provided with macroporous adsorptive resins;Inside the removing protein device It is provided with highly acidic cation exchange column;The separation of polysaccharides purification devices are internally provided with anion-exchange column.
This utility model hinge structure has substantive distinguishing features and progress, specifically, what this utility model was provided Pericarpium Trichosanthiss Polyose extraction purification devices include extraction pot, concentration Alcohol-settling tank, centrifuge, polysaccharide decoloration device, removing protein device, many Sugar is from purification devices, polysaccharide ultra-filtration and separation device, vacuum freeze drier;Using the Pericarpium Trichosanthiss Polyose extraction purification devices Industrialization extraction and the purification of Pericarpium Trichosanthiss polysaccharide can be realized, traditional extraction process is compared, work effect is not only substantially increased Rate, while realizing material extracts the industrialized production with purification;With design science, practical, production efficiency is high and produces The advantage of product high precision.
Description of the drawings
Fig. 1 is the Pericarpium Trichosanthiss Polyose extraction purification devices structural representation that the present invention is provided.
In figure:1st, extraction pot;2nd, concentrate Alcohol-settling tank;3rd, centrifuge;4th, polysaccharide decoloration device;5th, removing protein device;6th, it is many Sugar is from purification devices;7th, polysaccharide ultra-filtration and separation device;8th, vacuum freeze drier;9th, vacuum pump;10th, three-way valve;11st, stir Oar;12nd, ultrasonic transducer;13rd, filter;14th, can body heating jacket;15th, air relief valve;16th, material inlet;17th, oil-water separation Device;18th, condenser;19th, Waste outlet;20th, motor;101st, extract tank body, 201, concentration Alcohol-settling tank;301st, bottom.
Specific embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
Embodiment
A kind of Pericarpium Trichosanthiss Polyose extraction purification devices are present embodiments provided, its structure is as shown in figure 1, it includes extraction pot 1st, Alcohol-settling tank 2, centrifuge 3, polysaccharide decoloration device 4, removing protein device 5, separation of polysaccharides purification devices 6, polysaccharide ultrafiltration point are concentrated From device 7, vacuum freeze drier 8;Above-mentioned tank body properly arranges the position relationship between them as needed, while arranging frame Body supports tank body, it is ensured that extraction process is smoothed out.
Whole Pericarpium Trichosanthiss Polyose extraction purge process is as follows:
The extraction pot 1 can carry out cut and extract to the material being put in which, and the concentration Alcohol-settling tank 2 can be to Jing institutes State the liquid after extraction pot 1 is extracted carry out heating, thickening filtration, and by the material inlet 16 of the concentration Alcohol-settling tank 2 to tank Interior addition ethanol carries out precipitate with ethanol, removes filtrate by the Waste outlet 19 of the concentration Alcohol-settling tank 2 after standing, most backward described dense Add in contracting Alcohol-settling tank 2, filtering residue is dissolved by stirring paddle 11, Pericarpium Trichosanthiss polysaccharide solution is obtained.
The Pericarpium Trichosanthiss polysaccharide solution sequentially passes through the centrifuge 3, the polysaccharide decoloration device 4, the removing protein Device 5 and the separation of polysaccharides purification devices 6 carry out respectively being centrifuged, decolourize, except Deproteinization and purification, it is finally many by after purification Jing polysaccharide ultra-filtration and separation device 7, vacuum freeze drier 8 is processed sugar again, so as to obtain refined purification Pericarpium Trichosanthiss polysaccharide.
The annexation of whole Pericarpium Trichosanthiss Polyose extraction purification devices is as follows:
The discharging opening of the extraction pot 1 is connected with the inlet of the concentration Alcohol-settling tank 2 by vacuum pump 9, the concentration The liquid outlet of Alcohol-settling tank 2 connects the polysaccharide decoloration device 4 being sequentially connected in series, the removing protein device 5 by the centrifuge 3 With the separation of polysaccharides purification devices 6;
The liquid outlet of the separation of polysaccharides purification devices 6 connects the polysaccharide ultra-filtration and separation device 7, the polysaccharide ultrafiltration point The vacuum freeze drier 8 is connected by vacuum pump 9 from device 7.
And the discharging opening of the polysaccharide decoloration device 4 is connected with 5 charging aperture of removing protein device by vacuum pump 9, The discharging opening of the removing protein device 5 is connected with the charging aperture of the separation of polysaccharides purification devices 6 by vacuum pump 9.
Simultaneously in order to make full use of resource, purification efficiency is improved, is also connected with the extraction pot and the concentration Alcohol-settling tank There are oil water separator 17 and condenser 18.
In the present embodiment, a kind of structure of specific extraction pot 1 and the structure of concentration Alcohol-settling tank 2 is given, such as Fig. 1 institutes Show, the extraction pot 1 includes:Extract tank body 101 and the stranded bottom 301 of tank body sealed bottom is extracted with described by gas lock. The volume for extracting tank body 101 arranges size according to needing of extracting, and the gas lock adopts existing structure, and the gas lock can be by Bottom 301 carries out sealing sealed with the extraction tank body 101, and when preventing from extracting, material and solution overflow and provides closed with this Extract space.
Meanwhile, in order to ensure the Extracting temperature in the extraction pot, it is additionally provided with the bottom 301 of the extraction tank body 101 Can body heating jacket 14.
Stirring port, material inlet 16, air relief valve 15, steam (vapor) outlet and and extraction pot are provided with the top of the extraction tank body 1 The motor 20 of the volume matched power of body 101, the motor 20 are connected with stirring paddle 11 by the stirring port;Institute State and on the bottom 301 for extract tank body 1, be additionally provided with liquid outlet, the liquid outlet is by vacuum pump 9 and the concentration Alcohol-settling tank 2 Inlet is connected;The extraction tank body 1 is internally provided with ultrasonic transducer 12 and filter 13.
It is whole to extract tank arrangement, using Automated condtrol, reasonably add materials, solvent, timely carry out carrying for thermal source For, the extraction of material is realized with this, thermal source completes the extraction of material by extraction pot described in Automated condtrol into extraction pot, i.e., The preliminary extraction of achievable material, the solution input upstream device after extraction carry out next step process.
In the present embodiment, the concentration Alcohol-settling tank 2 includes:Concentrate precipitate with ethanol tank body 201 and pass through gas lock and the extraction pot The stranded bottom 301 of body sealed bottom, is provided with Waste outlet on the outside of the bottom 301;At the top of the concentration precipitate with ethanol tank body 201 Stirring port, material inlet 16, air relief valve 15, steam (vapor) outlet and motor 20 is provided with, the motor 20 is by described Stirring port is connected with stirring paddle 11.Liquid outlet and Waste outlet 19 are provided with the bottom 301 of the concentration Alcohol-settling tank 2, it is described The liquid outlet of concentration Alcohol-settling tank is connected with the centrifuge 3 by vacuum pump 9;Also set inside the concentration precipitate with ethanol tank body 201 It is equipped with filter 13.
Meanwhile, in order to ensure the concentration precipitate with ethanol temperature of the concentration precipitate with ethanol tank body, on the bottom 301 of the concentration Alcohol-settling tank 2 It is additionally provided with can body heating jacket 14.
In the present embodiment, macroporous adsorptive resins are provided with the polysaccharide decoloration device 4, in the removing protein device 5 Portion is provided with highly acidic cation exchange column, and storng-acid cation exchange resin can effectively remove the albumen in Pericarpium Trichosanthiss extracting solution Matter and aminoacid;The separation of polysaccharides purification devices 7 are internally provided with anion-exchange column.
Simultaneously in order to make full use of resource, purification efficiency is improved, between the extraction pot 1 and the concentration Alcohol-settling tank 2 also The oil water separator 17 and condenser 18 that can be shared is connected with, four pipe joints, described on the condenser 18, are provided with Three pipe joints are provided with oil water separator 17.
Wherein, on the condenser 17 one of pipe joint be connected with the steam (vapor) outlet of the extraction pot 1, it is described cold On condenser 18 second pipe joint be connected with the steam (vapor) outlet of the concentration Alcohol-settling tank 2, on the condenser 18 the 3rd manage Pipeline joint is connected with the inlet of the concentration Alcohol-settling tank 2 by vacuum pump, on the condenser 18 the 4th pipe joint and One of pipe joint on the oil water separator 17 is connected.
Second pipe joint on the oil water separator 17 is used as oil-out, the 3rd on the oil water separator 17 Inlet of the individual pipe joint by three-way valve respectively with the steam (vapor) outlet and the concentration Alcohol-settling tank 2 of the concentration Alcohol-settling tank 2 It is connected.
Specifically, it is when the steam to extraction pot 1 is individually condensed or first carried out condensing, carried out oil-water separation again, first The steam (vapor) outlet valve of concentration Alcohol-settling tank 2 is first closed, the steam (vapor) outlet of extraction pot 1 is then opened and is connected to extraction pot 1 and dense Vacuum pump between contracting Alcohol-settling tank 2.The condensed device 18 of steam of extraction pot 1 is divided into two-way after condensing, and passes through all the way Vacuum pump is directly entered in concentration Alcohol-settling tank 2, and another road is needed again Jing after oil water separator 17 carries out oil-water separation by vacuum pump Into in concentration Alcohol-settling tank 2.Jing oil water separators 17 can rationally be determined the need for again according to actual needs carries out profit point From.
When the steam to concentrating Alcohol-settling tank 2 is individually condensed or first carried out oil-water separation, condenses again, close first The steam (vapor) outlet valve of extraction pot 1 is closed, the steam (vapor) outlet of concentration Alcohol-settling tank 2 is then opened and is connected to extraction pot 1 and concentration alcohol Vacuum pump between heavy tank 2.The steam of concentration Alcohol-settling tank 2 is first divided into two-way, is after direct condensed device 18 is condensed all the way Entered in concentration Alcohol-settling tank 2 by vacuum pump, another road needs elder generation Jing after oil water separator 17 carries out oil-water separation, then condensed device Entered in concentration Alcohol-settling tank 2 by vacuum pump after 18 condensations.First Jing profits can be rationally determined the need for according to actual needs Separator 17 carries out oil-water separation.
Whole Pericarpium Trichosanthiss Polyose extraction purification devices can realize that the industrialization to material is purified, while so that in solution Impurity is filtered, effective evaporation of solvent, and then causes the DNA purity of Fructus Trichosanthis skin tissue high, meets the demand of people.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than which is limited System;Although being described in detail to this utility model with reference to preferred embodiment, those of ordinary skill in the art should Understand:Still specific embodiment of the present utility model can be modified or equivalent is carried out to some technical characteristics and replace Change;Without deviating from the spirit of technical solutions of the utility model, which all should cover the technical scheme being claimed in this utility model In the middle of scope.

Claims (9)

1. a kind of Pericarpium Trichosanthiss Polyose extraction purification devices, it is characterised in that
It include extraction pot, concentration Alcohol-settling tank, centrifuge, polysaccharide decoloration device, removing protein device, separation of polysaccharides purification devices, Polysaccharide ultra-filtration and separation device, vacuum freeze drier;
The discharging opening of the extraction pot is connected with the inlet of the concentration Alcohol-settling tank by vacuum pump, the concentration Alcohol-settling tank Liquid outlet connects the centrifuge;
The discharging opening of the centrifuge is connected with the charging aperture of the polysaccharide decoloration device by vacuum pump;The polysaccharide decolourizes The discharging opening of device is connected with the removing protein device charging aperture by vacuum pump, and the discharging opening of the removing protein device passes through Vacuum pump is connected with the charging aperture of the separation of polysaccharides purification devices;
The discharging opening of the separation of polysaccharides purification devices connects the polysaccharide ultra-filtration and separation device by vacuum pump, and the polysaccharide surpasses Filter segregation apparatuss connect the vacuum freeze drier by vacuum pump.
2. Pericarpium Trichosanthiss Polyose extraction purification devices according to claim 1, it is characterised in that
The extraction pot includes extracting tank body and extracts the stranded bottom of tank body sealed bottom by gas lock with described;
Material inlet, air relief valve and steam (vapor) outlet is provided with the top of the extraction tank body, and the extraction tank interior is provided with to be stirred Oar, ultrasonic transducer and filter is mixed, the discharging opening of the extraction pot is arranged on the bottom of the extraction pot.
3. Pericarpium Trichosanthiss Polyose extraction purification devices according to claim 2, it is characterised in that
Oil water separator and condenser is also associated with the top of the extraction pot;Be provided with the condenser steam inlet and An inlet, an oil-out and an outlet are provided with two condensate outlets, the oil water separator;
The steam inlet of the condenser is connected with the steam (vapor) outlet of the extraction pot, the one of condensed fluid of the condenser Outlet is connected with the inlet of the concentration Alcohol-settling tank by vacuum pump;Another condensate outlet of the condenser with it is described The inlet of oil water separator is connected;
The outlet of the oil water separator is connected with the inlet of the concentration Alcohol-settling tank by vacuum pump.
4. Pericarpium Trichosanthiss Polyose extraction purification devices according to claim 1, it is characterised in that
The concentration Alcohol-settling tank includes concentrating precipitate with ethanol tank body and extracts the stranded bottom of tank body sealed bottom by gas lock with described;
Material inlet, air relief valve and steam (vapor) outlet is provided with the top of the concentration Alcohol-settling tank, is arranged inside the concentration Alcohol-settling tank There are stirring paddle and filter;The inlet and liquid outlet of the concentration Alcohol-settling tank is arranged on the concentration Alcohol-settling tank bottom, and Waste outlet is additionally provided with the concentration Alcohol-settling tank bottom.
5. Pericarpium Trichosanthiss Polyose extraction purification devices according to claim 4, it is characterised in that
Oil water separator and condenser are also associated with the top of the concentration Alcohol-settling tank;It is provided with a steam to enter on the condenser An inlet, an oil-out and an outlet are provided with mouth and two condensate outlets, the oil water separator;
The steam inlet of the condenser is connected with the steam (vapor) outlet of the concentration Alcohol-settling tank, and one of them is cold for the condenser Condensate outlet is connected with the inlet of the concentration Alcohol-settling tank by vacuum pump;Another condensate outlet of the condenser with The inlet of the oil water separator is connected;
The outlet of the oil water separator is connected with the inlet of the concentration Alcohol-settling tank by vacuum pump.
6. Pericarpium Trichosanthiss Polyose extraction purification devices according to claim 2, it is characterised in that
The concentration Alcohol-settling tank includes concentrating precipitate with ethanol tank body and extracts the stranded bottom of tank body sealed bottom by gas lock with described;
Material inlet, air relief valve and steam (vapor) outlet is provided with the top of the concentration Alcohol-settling tank, is arranged inside the concentration Alcohol-settling tank There are stirring paddle and filter;The inlet and liquid outlet of the concentration Alcohol-settling tank is arranged on the concentration Alcohol-settling tank bottom, and Waste outlet is additionally provided with the concentration Alcohol-settling tank bottom.
7. Pericarpium Trichosanthiss Polyose extraction purification devices according to claim 6, it is characterised in that
Shared oil water separator and condenser are also associated between the extraction pot and the concentration Alcohol-settling tank;The condenser On be provided with four pipe joints, the oil water separator and be provided with three pipe joints;
On the condenser one of pipe joint be connected with the steam (vapor) outlet of the extraction pot, second on the condenser Pipe joint is connected with the steam (vapor) outlet of the concentration Alcohol-settling tank, on the condenser the 3rd pipe joint by vacuum pump and The inlet of the concentration Alcohol-settling tank is connected, on the condenser on the 4th pipe joint and the oil water separator wherein One pipe joint is connected;
Second pipe joint on the oil water separator is connect as oil-out, the 3rd on the oil water separator pipeline Mouth is connected with the steam (vapor) outlet of concentration Alcohol-settling tank and the inlet of the concentration Alcohol-settling tank respectively by three-way valve.
8. Pericarpium Trichosanthiss Polyose extraction purification devices according to claim 7, it is characterised in that the bottom of the extraction tank body On be additionally provided with can body heating jacket;Can body heating jacket is additionally provided with the bottom of the concentration precipitate with ethanol tank body.
9. Pericarpium Trichosanthiss Polyose extraction purification devices according to claim 8, it is characterised in that in the polysaccharide decoloration device Portion is provided with macroporous adsorptive resins;The removing protein device is internally provided with highly acidic cation exchange column;Many sugars Anion-exchange column is internally provided with from purification devices.
CN201621049715.7U 2016-09-12 2016-09-12 Trichosanthes bark extraction of polysaccharide purification device Active CN206033640U (en)

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Application Number Priority Date Filing Date Title
CN201621049715.7U CN206033640U (en) 2016-09-12 2016-09-12 Trichosanthes bark extraction of polysaccharide purification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621049715.7U CN206033640U (en) 2016-09-12 2016-09-12 Trichosanthes bark extraction of polysaccharide purification device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108017720A (en) * 2018-02-05 2018-05-11 邯郸学院 Flower of JINHUAKUI extraction method of polysaccharides
CN110204626A (en) * 2019-06-17 2019-09-06 日照职业技术学院 A kind of device and method sea cucumber polysaccharide separation and refined
CN115054945A (en) * 2022-07-25 2022-09-16 南京百益恒安生物科技有限公司 Preparation device and method of dendrobium officinale polysaccharide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108017720A (en) * 2018-02-05 2018-05-11 邯郸学院 Flower of JINHUAKUI extraction method of polysaccharides
CN110204626A (en) * 2019-06-17 2019-09-06 日照职业技术学院 A kind of device and method sea cucumber polysaccharide separation and refined
CN115054945A (en) * 2022-07-25 2022-09-16 南京百益恒安生物科技有限公司 Preparation device and method of dendrobium officinale polysaccharide

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