Separation device for extracting selenium polysaccharide from selenium-rich shiitake mushrooms
By using multi-stage separation devices and processes, combined with pretreatment using a pulverizer and a drying oven, the problem of low purity in shiitake mushroom polysaccharide extraction was solved, achieving efficient and low-pollution selenium polysaccharide extraction while preserving the selenium component.
Patent Information
- Application Number
- CN202422931190.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing shiitake polysaccharide separation and purification equipment involves cumbersome procedures, causes serious pollution, is complicated to operate, has low extraction purity, is inefficient, and results in significant resource waste.
A multi-stage separation device was designed, comprising an extraction tank, an alcohol precipitation tank, a Sevage protein removal tank, a decolorization tank, a reverse osmosis component, and a dialysis tank. Through multi-stage separation and purification processes, combined with raw material pretreatment using a pulverizer and a drying oven, the device utilizes the Sevage method for protein removal and hydrogen peroxide decolorization, avoiding the small molecule removal step and retaining the selenium component.
This method achieves high-purity extraction of selenium polysaccharides from selenium-enriched shiitake mushrooms, avoiding the problem of low purity in traditional methods, and effectively preserving the selenium components, thus improving extraction efficiency.
Smart Images
Figure CN223716417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to material separation equipment, specifically a separation device for extracting selenium polysaccharides from selenium-enriched shiitake mushrooms. Background Technology
[0002] Shiitake mushrooms are a common edible fungus. Recent studies have found that lentinan, a polysaccharide found in shiitake mushrooms, has a certain effect on cancer relief. It can stimulate the immune system, thereby improving its function to some extent. Its effect on cancer relief is indirect and does not produce toxic side effects on normal cells. Selenium is an essential trace mineral element for the human body, crucial for maintaining the body's antioxidant activity and resistance. However, 72% of my country's regions are selenium-deficient to varying degrees. Therefore, purifying the polysaccharides along with selenium from selenium-rich shiitake mushrooms is a very valuable process.
[0003] In tissues, polysaccharides are mostly covalently bound to proteins. Therefore, in the preparation process of biochemical products, the first step often involves using enzymes to degrade the protein portion or using alkali to break the bonds between polysaccharides and proteins, thereby promoting the dissolution of polysaccharides during extraction. Besides this, another method for removing proteins is the Sevage process. The Sevage process has lower requirements for process conditions and is easier to operate than enzyme degradation.
[0004] Conventional shiitake polysaccharide separation and purification devices are cumbersome, pollute heavily, and are difficult to operate. They also result in low extraction purity, low efficiency, and a significant waste of resources. Therefore, how to achieve higher purity in the purified polysaccharide products is a problem that needs to be solved. Utility Model Content
[0005] The purpose of this invention is to provide a separation device for extracting selenium polysaccharides from selenium-enriched shiitake mushrooms, which solves the problem of low purity of the extracted polysaccharide products during the polysaccharide extraction process.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a selenium-enriched shiitake mushroom with high selenium content.
[0007] The separation device for sugar extraction includes an extraction tank, an alcohol precipitation tank, a Sevage protein removal tank, and a decolorization tank. The extraction tank is connected to the alcohol precipitation tank via an extraction liquid delivery pipeline. The alcohol precipitation tank is connected to the Sevage protein removal tank via an alcohol precipitation liquid delivery pipeline. The Sevage protein removal tank is connected to a secondary alcohol precipitation tank via a protein removal liquid pipeline. The secondary alcohol precipitation tank is connected to a hydrogen peroxide decolorization tank via a secondary alcohol precipitation liquid pipeline. The hydrogen peroxide decolorization tank is connected to a concentration tank via a decolorization liquid pipeline. The concentration tank is connected to a reverse osmosis unit via a concentration liquid pipeline. The reverse osmosis unit is connected to a dialysis tank via a dialysis pipeline. A raw material pretreatment system is also provided at the front end of the extraction tank.
[0008] Further, the raw material pretreatment system comprises a pulverizer and a drying box, the pulverizer is arranged above the leaching tank, a feeding inclined pipe of the pulverizer is aligned with a tank opening of the leaching tank, the pulverizer is provided with the drying box above, a feeding opening of the drying box extends to the pulverizer, and the pulverizer and the drying box are fixed by a support.
[0009] Further, the pulverizer comprises an outer frame, crushing teeth, a roller, roller shaft one, a pulverizer motor, roller shaft two, a first gear and a second gear, the outer frame is provided with the roller shaft one and the roller shaft two which are parallel to each other and are rotatably connected in the outer frame, the outer frame is fixed by the support, the roller shaft one is rotatably connected with the first gear through a side wall of the outer frame, the roller shaft two is rotatably connected with the second gear through a side wall of the outer frame, the first gear and the second gear are engaged, the roller shaft one and the roller shaft two are both provided with the roller, the roller is provided with the crushing teeth on a surface thereof, and an output end of the pulverizer motor is connected with the roller shaft one.
[0010] Further, the leaching tank is further provided with a support two above, the support two is supported and connected with a motor, an output end of the motor is fixedly connected with a stirring rod, and the stirring rod is fixedly connected with stirring blades.
[0011] Further, the Sevage method protein removal tank is further connected with a n-butanol storage tank and a chloroform storage tank.
[0012] Further, the concentration tank is further connected with a drying box.
[0013] Further, the reverse osmosis assembly comprises two groups of reverse osmosis elements, each reverse osmosis element is provided with a reverse osmosis membrane layer, a solvent side and a solution side.
[0014] Further, the concentrated liquid pipeline is connected with a flow meter and a heat exchanger.
[0015] Further, the leaching tank is provided with a heat preservation jacket one around an outer wall, and the decoloring tank is provided with a heat preservation jacket two around an outer wall.
[0016] Further, the leaching liquid conveying pipeline, the alcohol precipitation liquid conveying pipeline, the deproteinized liquid pipeline, the secondary alcohol precipitation liquid pipeline, the decoloring liquid pipeline and the front pipeline of the reverse osmosis assembly are all connected with pressure pumps, and the front pipeline of the reverse osmosis assembly, a branch pipeline of the drying box, a connecting pipeline of the n-butanol storage tank and a connecting pipeline of the chloroform storage tank are all connected with valves.
[0017] The advantages of the utility model are as follows:
[0018] The utility model discloses a multistage separation purification can make the purity of selenium -rich lentinus edodes selenium polysaccharide extraction is higher, avoids the polysaccharide purity of general purification method not high problem, and the device of the utility model does not set up small molecule remove link, can effectively keep selenium component in polysaccharide, thereby realizes the extraction of lentinus edodes selenium polysaccharide. BRIEF DESCRIPTION OF DRAWINGS
[0019] The drawings constituting a part of this application are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation to the utility model.
[0020] Fig. 1 It is the plane structure schematic drawing of the separation device of the utility model one kind selenium -rich lentinus edodes selenium polysaccharide extraction;
[0021] Fig. 2 It is the structure enlarged view of the pulverizer of the separation device of the utility model one kind selenium -rich lentinus edodes selenium polysaccharide extraction;
[0022] Fig. 3 It is the principle schematic drawing of the reverse osmosis element of the separation device of the utility model one kind selenium -rich lentinus edodes selenium polysaccharide extraction;
[0023] Drawing reference: 1 is leaching jar, 2 is alcohol precipitation jar, 3 is Sevage method removes protein jar, 4 is secondary alcohol precipitation jar, 5 is hydrogen peroxide decoloring jar, 6 is concentration jar, 7 is reverse osmosis component, 8 is pulverizer, 9 is n-butyl alcohol storage jar, 10 is chloroform storage jar, 11 is dialysis jar, 12 is drying box, 13 is flowmeter, 14 is drying oven, 15 is feed inlet, 16 is feed inclined pipe, 17 is heat exchanger, 18 is pressure pump, 19 is heat preservation jacket one, 20 is heat preservation jacket two, 21 is valve, 22 is motor, 23 is stirring blade, 24 is concentrated liquid pipeline, 25 is dialysis pipeline, 26 is leaching liquid pipeline, 27 is alcohol precipitation liquid pipeline, 28 is deproteinized liquid pipeline, 29 is secondary alcohol precipitation liquid pipeline, 30 is decoloring liquid pipeline, 31 is reverse osmosis component front pipeline, 32 is stirring rod, 33 is support one, 34 is support two, 701 is reverse osmosis membrane layer, 702 is solvent side, 703 is solution side, 801 is outer frame, 802 is crushing tooth, 803 is roller, 804 is roller shaft one, 805 is pulverizer motor, 806 is roller shaft two, 807 is first gear, 808 is second gear. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is in combination with the drawing and example, and the utility model is further detailed.The specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.
[0025] In the description of the utility model, need understanding is, the terms '' upper '', '' lower '', '' front '', '' back '', '' left '', '' right '', '' top '', '' bottom '', '' inside '', '' outside '' and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply the indicated device or element must have a particular orientation, with a particular orientation structure and operation, therefore can not be understood as the limitation to the utility model.
[0026] Reference Figs. 1 to 3 A kind of selenium-rich lentinula edodes selenium polysaccharide extraction separation device including leaching tank 1, alcohol
[0027] Sediment tank 2, Sevage method protein removal tank 3, hydrogen peroxide decoloring tank 5, the function of leaching tank 1 is that the effective component contained in selenium-rich lentinula edodes is extracted by hot water, the function of alcohol precipitation tank 2 is that the effective component in leaching solution is dissolved by alcohol solvent, the function of Sevage method protein removal tank 3 is that protein in alcohol precipitation solution is removed by Sevage method, the function of hydrogen peroxide decoloring tank 5 is that after removing protein in liquid, further colored substance in it is removed by strong oxidizing substance.Leaching tank 1 is connected with alcohol precipitation tank 2 by leaching solution pipeline 26, alcohol precipitation tank 2 is connected with Sevage method protein removal tank 3 by alcohol precipitation solution pipeline 27, Sevage method protein removal tank 3 is connected with secondary alcohol precipitation tank 4 by deproteinized liquid pipeline 28, secondary alcohol precipitation tank 4 is connected with hydrogen peroxide decoloring tank 5 by secondary alcohol precipitation solution pipeline 29, since target extract is selenium polysaccharide, selenium is a reserved component, so after secondary alcohol precipitation tank, small molecule removal equipment does not need to be set again, the function of secondary alcohol precipitation tank 4 is to carry out secondary alcohol precipitation, hydrogen peroxide decoloring tank 5 is connected with concentration tank 6 by decoloring liquid pipeline 30, the function of concentration tank 6 is to receive decoloring liquid and concentrated solution obtained by reverse osmosis, output concentrated solution to carry out further reverse osmosis, concentration tank 6 is connected with reverse osmosis component 7 by concentrated solution pipeline 24, reverse osmosis component 7 is connected with dialysis tank 11 by dialysis pipeline 25, the function of dialysis tank 11 is to hold dialysis solution, the function of leaching solution pipeline 26 is to transport leaching solution, the function of alcohol precipitation solution pipeline 27 is to transport alcohol precipitation solution, the function of deproteinized liquid pipeline 28 is to transport deproteinized liquid, the function of secondary alcohol precipitation solution pipeline 29 is to transport secondary alcohol precipitation solution, the function of decoloring liquid pipeline 30 is to transport decoloring liquid, the function of reverse osmosis component front pipeline 31 is to transport the discharge of concentrated solution tank 6 to reverse osmosis component, the function of concentrated solution pipeline 24 is to return concentrated solution from reverse osmosis element solution side 703 to concentration tank 6, the function of dialysis pipeline 25 is to transport dialysis solution from reverse osmosis component 7 to dialysis tank 11.Different material tanks are connected in series, which can be purified step by step.
[0028] The front end of the leaching tank 1 is also provided with a raw material pretreatment system, which comprises a pulverizer 8 and a drying box 14. The drying box 14 is used for drying fresh shiitake mushrooms, and the pulverizer 8 is used for crushing the dried shiitake mushrooms. The pulverizer 8 is arranged above the leaching tank 1, and the feed chute 16 of the pulverizer 8 is aligned with the tank opening of the leaching tank 1. The feed chute 16 is used to send the dried shiitake mushroom powder into the leaching tank 1 more gently. The drying box 14 is arranged above the pulverizer 8, and the feed opening 15 of the drying box 14 extends to the pulverizer 8. The pulverizer 8 and the drying box 14 are fixed by the support 33. The support 33 strongly supports the pulverizer 8 and the drying box 14.
[0029] The pulverizer 8 comprises an outer frame 801, crushing teeth 802, rollers 803, roller shafts 804, a pulverizer motor 805, roller shafts 806, a first gear 807, and a second gear 808. The outer frame 801 is provided with two mutually parallel roller shafts 804 and 806 arranged in the outer frame 801, and the roller shafts 804 and 806 are rotatably connected and arranged in the outer frame. The outer frame 801 is fixed by the support 33. The roller shaft 804 rotatably penetrates one side wall of the outer frame 801 and is connected with the first gear 807. The roller shaft 806 rotatably penetrates one side wall of the outer frame 801 and is connected with the second gear 808. The first gear 807 and the second gear 808 are meshed. The roller shafts 804 and 806 are both sleeved with the rollers 803. The surface of the roller 803 is provided with the crushing teeth 802. The output end of the pulverizer motor 805 is connected with the roller shaft 804. The outer frame 801 supports the pulverizer 8. The pulverizer motor 805 drives the first gear 807 to rotate. The first gear 807 drives the roller shaft 805 to rotate. The first gear 807 and the second gear 808 rotate in opposite directions, thereby driving the roller shafts 804 and 806 to rotate in opposite directions. Then, the rollers 803 carried by the two roller shafts rotate in different directions, so that the crushing teeth 802 arranged on the rollers 803 crush the dried shiitake mushrooms into powder. The pulverizer 8 crushes the dried shiitake mushrooms into finer powder, so that they can be more uniformly and sufficiently dispersed in the leaching tank 1 later.
[0030] The upper surface of the leaching tank 1 is also provided with a support 34, which supports the electric motor 22. The output end of the electric motor 22 is fixedly connected with the stirring rod 32. The stirring rod 32 is fixedly connected with the stirring blades 23. The electric motor 22 drives the stirring rod 32 and the stirring blades 23 to rotate. The stirring blades 23 are used to stir the shiitake mushrooms to make them mix more fully when extracting the effective components of the shiitake mushrooms.
[0031] The Sevage protein removal tank 3 is also connected with a n-butanol storage tank 9 and a chloroform storage tank 10. The n-butanol storage tank 9 and the chloroform storage tank 10 are used to add n-butanol and chloroform into the Sevage protein removal tank 3 in proportion. The volume ratio of the consumed chloroform and n-butanol is 4:1.
[0032] The concentration tank 6 is also connected with a drying box 12. The drying box 12 is used to dry the concentrated liquid by a spray drying method, so as to obtain the dried target product selenium polysaccharide.
[0033] The reverse osmosis assembly 7 comprises two groups of reverse osmosis elements. The reverse osmosis assembly 7 is used to concentrate the liquid stream after decolorization by using the principle of reverse osmosis.
[0034] The concentrated liquid pipeline 24 is provided with a flow meter 13 and a heat exchanger 17. The flow meter 13 is used to detect the flow of the concentrated liquid in the concentrated liquid pipeline. The heat exchanger 17 is used to remove the excess heat of the concentrated liquid.
[0035] The outer wall of the leaching tank 1 is surrounded by a heat preservation jacket 1 9. The outer wall of the hydrogen peroxide decolorization tank 5 is surrounded by a heat preservation jacket 2 0. The heat preservation jackets are used to maintain the temperature of the material tanks.
[0036] The leaching liquid conveying pipeline 26, the alcohol precipitation liquid conveying pipeline 27, the deproteinized liquid pipeline 28, the secondary alcohol precipitation liquid pipeline 29, the decolorized liquid pipeline 30 and the reverse osmosis assembly front pipeline 31 are all provided with pressure pumps 18. The pressure pumps 18 are used to pump the corresponding liquid streams into the next stage of purification equipment.
[0037] The reverse osmosis assembly front pipeline 31 and the branch pipes of the drying box 12, the connecting pipes of the n-butanol storage tank 9 and the connecting pipes of the chloroform storage tank 10 are all provided with valves 21. The valves provided on the reverse osmosis assembly front pipeline 31 and the branch pipes of the drying box 12 are used for switching the opening and closing of the liquid streams. The valves provided on the connecting pipes of the n-butanol storage tank 9 and the connecting pipes of the chloroform storage tank 10 are used to control the conveying amount of the n-butanol and the chloroform.
[0038] The implementation method of the utility model:
[0039] In the drying box 14, fresh mushroom is contained, and after drying in the drying box 14, it is poured into the pulverizer 8 through the feeding port 15. The pulverizer 8 drives the first gear 807 to rotate under the action of the pulverizer motor 805, and the first gear 807 and the second gear 808 rotate in opposite directions, thereby driving the roller shaft one 804 and the roller shaft two 806 to rotate in opposite directions, and then the rollers 803 carried by the two roller shafts rotate in different directions, so that the crushing teeth 802 provided thereon crush the dried mushroom into powder. The selenium-rich mushroom powder is injected into the extraction tank 1 through the feeding inclined pipe 16, and the extraction tank 1 contains boiling water. The motor 22 is turned on, and the motor 22 drives the stirring rod 32 and the stirring blade 23 to rotate. The stirring blade 23 stirs the mushroom powder and the hot water to make them more uniformly mixed, and the extraction liquid is obtained. The obtained extraction liquid is heated and concentrated, and then is transported to the alcohol precipitation tank 2 through the extraction liquid pipeline 26. The alcohol precipitation tank contains ethanol, and selenium-rich polysaccharide is dissolved in ethanol, while the residue is not dissolved in ethanol. Ethanol is added to make the concentration of ethanol reach more than 50%, and the polysaccharide is precipitated by standing. Part of the supernatant is removed, and the alcohol precipitation liquid in which selenium-rich polysaccharide is precipitated is transported to the Sevage method protein removal tank 3 through the alcohol precipitation liquid pipeline 27. The Sevage method protein removal tank is injected with chloroform and n-butanol in a volume ratio of 4:1, and the total volume of the solvent of chloroform and n-butanol is 1-2 times the volume of the alcohol precipitation liquid. After the Sevage method protein removal, the deproteinized liquid is obtained, and the deproteinized liquid is transported to the secondary alcohol precipitation tank 4 through the deproteinized liquid pipeline 28. The obtained deproteinized liquid is subjected to secondary alcohol precipitation. The secondary alcohol precipitation tank 4 contains ethanol, and selenium-rich polysaccharide is dissolved in ethanol, while impurities are not dissolved in ethanol. Ethanol is added to make the concentration of ethanol reach more than 50%, and the polysaccharide is precipitated by standing. Part of the supernatant is removed, and the secondary alcohol precipitation liquid in which selenium-rich polysaccharide is precipitated is transported to the hydrogen peroxide decolorizing tank 5 through the secondary alcohol precipitation liquid pipeline 29. The hydrogen peroxide decolorizing tank 5 contains hydrogen peroxide. After decolorization in the hydrogen peroxide decolorizing tank 5, the decolorized liquid is transported to the concentration tank 6 through the decolorized liquid pipeline 30. The concentration tank 6 can receive the liquid stream transported by the decolorized liquid pipeline 30 and the liquid stream further concentrated after reverse osmosis returned by the concentrated liquid pipeline 24. When the temperature is too high, the excess heat can be removed by the heat exchanger 17. Since the concentrated liquid has a larger viscosity than the dilute solution, it is easy to cause resistance to the pipe wall, so the flow should be controlled. Therefore, the concentrated liquid pipeline 24 is also provided with the flow meter 13 for indicating the flow.
[0040] When the reverse osmosis assembly applies high pressure on the solution side 703, the solvent will be reverse osmosis to the solvent side 702 through the reverse osmosis membrane layer 701, the more solvent on the solvent side 702, the less solvent on the solution side 703, and the solution side 703 realizes the concentration of the solution, and the liquid flow on the solution side 703 after concentration returns to the concentration tank 6 through the concentrated liquid pipeline 24, and the liquid flow on the solvent side 702 is transported to the dialysis tank 11 through the dialysis pipeline 25. The liquid flow at the outlet of the concentration tank 6 can be freely switched according to the situation, if the concentration of the concentration tank 6 is relatively small, the reverse osmosis assembly front pipeline 31 can be switched to separate and purify the reverse osmosis assembly, if the concentration of the solution in the concentration tank 6 is large enough, the dry box 12 can be switched to prepare solid selenium polysaccharide by spray drying. In the whole process, it is not necessary to set up a small molecule impurity removal device, because selenium polysaccharide is extracted from selenium-rich shiitake mushrooms, selenium is a retained component, and it is not necessary to remove it.
[0041] The utility model discloses through multistage separation purification, can make the purity of selenium polysaccharide extraction of selenium-rich shiitake mushroom higher, avoids the problem of polysaccharide purity not being high of general purification method, and the device of the utility model does not set up small molecule removal link, can effectively retain selenium component in polysaccharide, thereby realizes the extraction of shiitake mushroom selenium polysaccharide.
[0042] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, any modification, equivalent replacement, improvement etc. that is made in the spirit and principle of the utility model should include in the protection scope of the utility model.
Claims
1. A separation device for extracting selenium polysaccharides from selenium-enriched shiitake mushrooms, comprising an extraction tank (1), an alcohol precipitation tank (2), a Sevage protein removal tank (3), and a hydrogen peroxide decolorization tank (5), characterized in that: The leaching tank (1) is connected with the alcohol precipitation tank (2) through the leaching liquid conveying pipeline (26), the alcohol precipitation tank (2) is connected with the Sevage method protein removal tank (3) through the alcohol precipitation liquid conveying pipeline (27), the Sevage method protein removal tank (3) is connected with the secondary alcohol precipitation tank (4) through the deproteinized liquid pipeline (28), the secondary alcohol precipitation tank (4) is connected with the hydrogen peroxide decoloring tank (5) through the secondary alcohol precipitation liquid pipeline (29), the hydrogen peroxide decoloring tank (5) is connected with the concentration tank (6) through the decoloring liquid pipeline (30), the concentration tank (6) is connected with the reverse osmosis assembly (7) through the concentrated liquid pipeline (24), the reverse osmosis assembly (7) is connected with the dialysis tank (11) through the dialysis pipeline (25), and the front end of the leaching tank (1) is also provided with a raw material pretreatment system.
2. The device for extracting and separating selenium-enriched Lentinula edodes selenium polysaccharides according to claim 1, characterized in that, The raw material pretreatment system comprises a pulverizer (8) and a drying box (14), the pulverizer (8) is arranged above the leaching tank (1), a feeding inclined pipe (16) of the pulverizer is aligned with a tank opening of the leaching tank (1), the drying box (14) is arranged above the pulverizer (8), a feeding opening (15) of the drying box (14) extends to the pulverizer (8), and the pulverizer (8) and the drying box (14) are fixed by a support (33).
3. The device for extracting and separating selenium-enriched Lentinula edodes selenium polysaccharides according to claim 2, characterized in that, The pulverizer (8) comprises an outer frame (801), crushing teeth (802), a roller (803), a roller shaft (804), a pulverizer motor (805), a roller shaft (806), a first gear (807) and a second gear (808), the outer frame (801) is provided with the roller shaft (804) and the roller shaft (806) which are parallel to each other and arranged in the outer frame (801), and the roller shaft (804) and the roller shaft (806) are rotatably connected and arranged in the outer frame, the outer frame (801) is fixed by the support (33), one side wall of the outer frame (801) rotatably penetrates the roller shaft (804) and is connected with the first gear (807), one side wall of the outer frame (801) rotatably penetrates the roller shaft (806) and is connected with the second gear (808), the first gear (807) and the second gear (808) are engaged, the roller shaft (804) and the roller shaft (806) are both sleeved with the roller (803), the surface of the roller (803) is provided with the crushing teeth (802), and the output end of the pulverizer motor (805) is connected with the roller shaft (804).
4. The device for extracting and separating selenium-enriched Lentinula edodes selenium polysaccharides according to claim 1, characterized in that, The upper surface of the leaching tank (1) is also provided with a support (34), the support (34) is supported and connected with a motor (22), the output end of the motor (22) is fixedly connected with a stirring rod (32), and the stirring rod (32) is fixedly connected with stirring blades (23).
5. The device for extracting and separating selenium-enriched Lentinula edodes selenium polysaccharides according to claim 1, characterized in that, The Sevage method protein removal tank (3) is also connected with a n-butanol storage tank (9) and a chloroform storage tank (10).
6. The device for extracting and separating selenium-enriched Lentinula edodes selenium polysaccharides according to claim 1, characterized in that, The concentration tank (6) is also connected with a drying box (12).
7. The device for extracting and separating selenium-enriched Lentinula edodes selenium polysaccharides according to claim 1, characterized in that, The reverse osmosis assembly (7) comprises two groups of reverse osmosis elements, each of which is provided with a reverse osmosis membrane layer (701), a solvent side (702) and a solution side (703).
8. The device for extracting and separating selenium-enriched Lentinula edodes selenium polysaccharides according to claim 1, characterized in that, The concentrated liquid pipeline (24) is connected with a flow meter (13) and a heat exchanger (17) in a penetrating manner.
9. The device for extracting and separating selenium-enriched Lentinula edodes selenium polysaccharides according to claim 1, characterized in that, The outer wall of the leaching tank (1) is surrounded by a heat preservation jacket I (19), and the outer wall of the hydrogen peroxide decoloring tank (5) is surrounded by a heat preservation jacket II (20).
10. The device for extracting and separating selenium-enriched Lentinula edodes selenium polysaccharides according to claim 1, characterized in that, The leaching liquid conveying pipeline (26), the alcohol precipitation liquid conveying pipeline (27), the deproteinized liquid pipeline (28), the secondary alcohol precipitation liquid pipeline (29), the decoloring liquid pipeline (30) and the front pipeline (31) of the reverse osmosis assembly are all connected with a pressure pump (18) in a penetrating manner, the front pipeline (31) of the reverse osmosis assembly, the branch pipe of the drying box (12), the connecting pipe of the n-butanol storage tank (9) and the connecting pipe of the chloroform storage tank (10) are all connected with a valve (21) in a penetrating manner.