CN215138674U - Separation and purification device for jerusalem artichoke polysaccharide - Google Patents
Separation and purification device for jerusalem artichoke polysaccharide Download PDFInfo
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- CN215138674U CN215138674U CN202022872418.5U CN202022872418U CN215138674U CN 215138674 U CN215138674 U CN 215138674U CN 202022872418 U CN202022872418 U CN 202022872418U CN 215138674 U CN215138674 U CN 215138674U
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- 239000012528 membrane Substances 0.000 claims abstract description 71
- 238000001471 micro-filtration Methods 0.000 claims abstract description 58
- 238000005374 membrane filtration Methods 0.000 claims description 58
- 238000000108 ultra-filtration Methods 0.000 claims description 45
- 238000001728 nano-filtration Methods 0.000 claims description 33
- 238000001914 filtration Methods 0.000 claims description 32
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- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
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- 239000011148 porous material Substances 0.000 claims description 3
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- 229940029339 inulin Drugs 0.000 description 1
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a separation and purification device of jerusalem artichoke polysaccharide, including the microfiltration membrane filter unit, milipore filter unit and the receive filter unit of filter membrane that establish ties in proper order, can effectively improve the polysaccharide purity of result.
Description
Technical Field
The utility model belongs to the technical field of the separation and purification, concretely relates to separation and purification device of jerusalem artichoke polysaccharide.
Background
The Jerusalem artichoke polysaccharide is derived from Jerusalem artichoke and chicory root, can improve the food flavor, is safe and nontoxic, and is an important food additive.
The common extraction method of the jerusalem artichoke polysaccharide is a water extraction method, water extract obtained by water extraction of a water extraction device not only contains monosaccharide, but also contains impurities such as fiber, pectin, protein and the like, generally, a lime milk-phosphoric acid method, a lime charging method or an ethanol precipitation method and the like are adopted to remove the impurities, and then gel chromatography and an ion exchange chromatographic column are further used for separation to prepare the polysaccharide. The conventional impurity removal and separation process is complex, the structure of the Jerusalem artichoke polysaccharide extraction device is complex, the filtration precision is poor, and the purity of the prepared polysaccharide is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a separation and purification device of jerusalem artichoke polysaccharide is provided, adopt the device to separate the extraction to the jerusalem artichoke polysaccharide, can effectively improve the polysaccharide purity of result, and the device has advantages such as simple structure, easy operation.
The utility model provides a separation and purification device of jerusalem artichoke polysaccharide, including microfiltration membrane filter unit, milipore filter unit and the receive filter membrane filter unit who establishes ties in proper order.
In one embodiment of the present invention, the pore diameter of the microfiltration membrane in the microfiltration membrane filtration unit may be 0.1 to 0.3 μm.
In one embodiment of the present invention, the microfiltration membrane in the microfiltration membrane filtration unit may include a tubular membrane or a hollow fiber membrane.
In one embodiment of the present invention, the operating pressure of the microfiltration membrane filtration unit may be 0.05 to 0.3MPa, and the filtration temperature may be 20 to 65 ℃.
In one embodiment of the present invention, the cut-off molecular weight of the ultrafiltration membrane in the ultrafiltration membrane filtration unit can be 10000-.
In one embodiment of the present invention, the ultrafiltration membrane in the ultrafiltration membrane filtration unit may include a roll-type membrane or a hollow fiber membrane.
In an embodiment of the present invention, the raw material of the hollow fiber membrane may be one selected from polyvinylidene fluoride, polyethersulfone, polysulfone, and polyacrylonitrile.
In one embodiment of the present invention, the cut-off molecular weight of the nanofiltration membrane in the nanofiltration membrane filtration unit can be 200-800 Da.
In an embodiment of the present invention, the separation and purification apparatus may further include a pretreatment unit connected to the microfiltration membrane filtration unit, and the pretreatment unit may include at least one of a centrifuge and a plate and frame filter.
In an embodiment of the present invention, the separation and purification apparatus may further include a multi-effect concentrator connected to the nanofiltration membrane filtration unit.
The utility model discloses an embodiment has following beneficial effect at least:
the utility model discloses a microfiltration, ultrafiltration and receive and strain tertiary membrane filtration unit's series connection setting, can effectively get rid of impurity such as pectin, fibre and protein, the purity of the jerusalem artichoke polysaccharide that obtains is greater than 99%, and protein content is less than 0.05%, while stable in structure, easy operation.
Drawings
Fig. 1 is a flow chart of a separation and purification apparatus for jerusalem artichoke polysaccharide according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a separation and purification device of jerusalem artichoke polysaccharide, including microfiltration membrane filtration unit, milipore filter filtration unit and the receive filter membrane filtration unit who establishes ties in proper order.
The utility model provides a separation and purification device to separation and purification jerusalem artichoke polysaccharide and design, and microfiltration membrane filtration unit wherein can be used for getting rid of fibre, pectin and macromolecular protein, and ultrafiltration membrane filtration unit can be used for getting rid of micromolecular protein, and nanofiltration membrane filtration unit can be used for the concentrated ultrafiltration filtrating from ultrafiltration membrane filtration unit outflow, gets rid of the reducing sugar simultaneously, and then realizes the high-efficient separation and purification to jerusalem artichoke polysaccharide.
The utility model discloses an in the embodiment, microfiltration membrane filter unit, milipore filter unit and receive filter unit's liquid outlet all can be provided with the liquid storage pot, conveniently receive from the liquid outlet outflow the filtrating and carry out further processing such as concentration to it.
In specific implementation, a stock solution to be treated containing the jerusalem artichoke polysaccharide is treated by a microfiltration membrane filtration unit to obtain microfiltration filtrate, the microfiltration filtrate enters an ultrafiltration membrane filtration unit and is treated to obtain ultrafiltration filtrate, the ultrafiltration filtrate then enters a nanofiltration membrane filtration unit, nanofiltration concentrated solution is obtained by treatment and flows out of the nanofiltration membrane filtration unit, and separation and purification of the jerusalem artichoke polysaccharide are realized.
In one embodiment of the present invention, the pore diameter of the microfiltration membrane in the microfiltration membrane filtration unit can be 0.1-0.3 μm, which is beneficial for better removing components such as fiber, pectin and macromolecular protein in the stock solution to be treated.
In an embodiment of the present invention, the microfiltration membrane in the microfiltration membrane filtration unit may include a tubular membrane or a hollow fiber membrane, but the present invention is not limited thereto, and may be other suitable types of microfiltration membranes.
In an embodiment of the present invention, the treatment of the raw liquid to be treated in the microfiltration membrane filtration unit may generally include filtration and backwashing, and specifically, the filtration process includes: the stock solution to be treated enters a microfiltration membrane filtration unit, fiber, colloid and macromolecular protein are removed through a microfiltration membrane to obtain filtrate, and the backwashing process comprises the following steps: injecting water from the liquid outlet of the microfiltration membrane filtration unit, flushing the microfiltration membrane, then discharging the water from the liquid outlet of the microfiltration membrane filtration unit, and combining the water with the filtrate to form the microfiltration filtrate. The membrane pollution of the microfiltration membrane can be reduced through backwashing, the service life of the microfiltration membrane is prolonged, and meanwhile, the jerusalem artichoke polysaccharide in partial filter residues is washed out, so that the total yield of the polysaccharide in the product is improved.
In another embodiment of the present invention, a concentration device can be further disposed behind the microfiltration membrane filtration unit, and the concentration device can be located outside the microfiltration membrane filtration unit. It can be understood that under the condition that the concentration equipment is not arranged, the microfiltration filtrate directly enters the ultrafiltration membrane filtration unit, under the condition that the concentration equipment is arranged, the microfiltration filtrate enters the concentration equipment and is concentrated to form the microfiltration concentrate, and the microfiltration concentrate enters the ultrafiltration membrane filtration unit, so that the operation time of the ultrafiltration membrane filtration unit is favorably shortened, and the operation efficiency is improved.
In one embodiment of the present invention, the operating pressure of the microfiltration membrane filtration unit may be 0.05 to 0.3MPa, and the filtration temperature may be 20 to 65 ℃, and further, may be 50 to 65 ℃.
The utility model discloses an in the embodiment, the molecular weight cut-off of the milipore filter among the milipore filter filtration unit can be 10000-.
In one embodiment of the present invention, the ultrafiltration membrane in the ultrafiltration membrane filtration unit may comprise a roll-type membrane or a hollow fiber membrane; the operating pressure of the ultrafiltration membrane filtration unit can be 0.1-1MPa, and the filtration temperature can be 20-65 ℃, and further can be 50-65 ℃.
In an embodiment of the present invention, the raw material of the hollow fiber membrane may be one selected from polyvinylidene fluoride, polyethersulfone, polysulfone, and polyacrylonitrile; in a preferred embodiment of the present invention, the raw material of the hollow fiber membrane is polyvinylidene fluoride.
In an embodiment of the present invention, the treatment of the microfiltration filtrate in the microfiltration membrane filtration unit may generally include filtration and water washing, specifically, the filtration process includes: the microfiltration filtrate enters an ultrafiltration membrane filtration unit, micromolecular protein is removed through an ultrafiltration membrane to obtain filtrate, and the water washing process comprises the following steps: and water is injected from a liquid inlet of the ultrafiltration membrane filtering unit, the ultrafiltration membrane is washed and then flows out from a liquid outlet of the ultrafiltration membrane filtering unit, and the water and the filtrate are combined to form ultrafiltration filtrate, so that the total yield of the polysaccharide in the product is improved.
In another embodiment of the present invention, a concentration device may be further disposed behind the ultrafiltration membrane filtration unit, and the concentration device may be located outside the ultrafiltration membrane filtration unit. The ultrafiltration device comprises a nanofiltration membrane filtering unit, a concentration device and a control device.
The utility model discloses an among the embodiment, the trapped molecular weight of receiving the filter membrane among the filter unit of receiving filter membrane can be for 200 + 800Da, is favorable to the jerusalem artichoke polysaccharide in the better concentrated ultrafiltration filtrating and gets rid of the reducing sugar, obtains the higher concentrated solution of receiving filter of brix.
In one embodiment of the present invention, the nanofiltration membrane in the nanofiltration membrane filtration unit may be a roll-type membrane; the operating pressure of the nanofiltration membrane filtering unit can be 0.5-1.5MPa, the filtering temperature can be 20-65 ℃, and further can be 50-65 ℃.
In an embodiment of the present invention, the treatment of the ultrafiltration filtrate in the nanofiltration membrane filtration unit generally may include filtration and water washing, specifically, the filtration process includes: the ultrafiltration filtrate enters a nanofiltration membrane filtration unit, is filtered and concentrated through a nanofiltration membrane, and simultaneously removes reducing sugar to obtain filtrate, wherein the water washing process comprises the following steps: and injecting water from a liquid inlet of the nanofiltration membrane filtering unit, flushing the nanofiltration membrane, then flowing out from a liquid outlet of the nanofiltration membrane filtering unit, and combining the water with the filtrate flowing out from the liquid outlet through a filtering process to form nanofiltration concentrated liquid.
In an embodiment of the present invention, the separation and purification apparatus may further include a pretreatment unit connected to the microfiltration membrane filtration unit, and the pretreatment unit may include at least one of a centrifuge and a plate and frame filter.
In an embodiment of the present invention, the separation and purification apparatus may further include a multi-effect concentrator connected to the nanofiltration membrane filtration unit.
When the method is specifically implemented, nanofiltration concentrated solution flowing out of a liquid outlet of a nanofiltration membrane filtering unit enters a multi-effect concentrator, and high-purity jerusalem artichoke polysaccharide powder is obtained by further concentrating, drying and spraying powder.
To make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Unless otherwise specified, the experimental methods used in the following examples are all conventional methods; the reagents, materials, instruments and the like used in the following examples are all conventional reagents, conventional materials and conventional instruments.
Examples
Taking a dried Jerusalem artichoke slice, crushing, weighing, adding 80 ℃ hot water, leaching twice to obtain Jerusalem artichoke polysaccharide water extract (the sugar degree is 10%), feeding the Jerusalem artichoke polysaccharide water extract into a horizontal centrifuge, performing horizontal centrifugal pretreatment to obtain a stock solution to be treated, feeding the stock solution to be treated into a microfiltration membrane filtration unit (a polyvinylidene fluoride hollow fiber microfiltration membrane), and removing fibers, colloids and macromolecular proteins to obtain a filtrate; injecting water from a liquid outlet of the microfiltration membrane filtration unit, flushing the microfiltration membrane, then flowing out of the liquid outlet of the microfiltration membrane filtration unit, and combining the water and the filtrate to form microfiltration filtrate, wherein the operating pressure of the microfiltration membrane filtration unit is 0.1MPa, and the temperature is 50 ℃; and concentrating the microfiltration filtrate to form a microfiltration concentrated solution.
The micro-filtration concentrated solution enters an ultrafiltration membrane filtration unit (polyvinylidene fluoride roll type ultrafiltration membrane), and micromolecular protein is removed through the ultrafiltration membrane to obtain filtrate; injecting water from a liquid inlet of an ultrafiltration membrane filtering unit, flushing the ultrafiltration membrane, then flowing out of a liquid outlet of the ultrafiltration membrane filtering unit, and combining the water with filtrate flowing out of the liquid outlet through a filtering process to form ultrafiltration filtrate, wherein the operating pressure of the ultrafiltration membrane filtering unit is 0.7MPa, and the temperature is 50 ℃; concentrating the ultrafiltration filtrate to form ultrafiltration concentrated solution.
The ultrafiltration concentrated solution enters a nanofiltration membrane filtering unit (a rolled nanofiltration membrane), and is concentrated by the nanofiltration membrane to obtain filtrate; injecting water from a liquid inlet of a nanofiltration membrane filtering unit, flushing a nanofiltration membrane, then flowing out of a liquid outlet of the nanofiltration membrane filtering unit, combining the water with a filtrate flowing out of the liquid outlet in a filtering process, and concentrating to obtain a nanofiltration concentrated solution with the sugar degree of 20% (the transmittance is 96.4%, the protein content is 0.05%, and the inulin purity is 99.3%), wherein the operating pressure of the nanofiltration membrane filtering unit is 1MPa, and the temperature is 50 ℃; and the obtained nanofiltration concentrated solution enters a multi-effect concentrator, and then high-purity jerusalem artichoke polysaccharide powder is obtained by drying and spraying powder, and the final total yield is 98.1%.
Finally, it should be noted that: the above experimental examples are only used to illustrate the technical solution of the present invention, but not to limit the same; although the present invention has been described in detail with reference to the foregoing experimental examples, it will be understood by those skilled in the art that: the technical scheme recorded in each experimental example can be modified, or part or all of the technical features can be equivalently replaced; and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the experimental examples of the present invention.
Claims (11)
1. A separation and purification device for Jerusalem artichoke polysaccharide is characterized by comprising a microfiltration membrane filtration unit, an ultrafiltration membrane filtration unit, a nanofiltration membrane filtration unit and a multi-effect concentrator which are sequentially connected in series.
2. The separation and purification apparatus as claimed in claim 1, wherein the pore size of the microfiltration membrane in the microfiltration membrane filtration unit is 0.1 to 0.3 μm.
3. The separation and purification apparatus of claim 1 or 2, wherein the microfiltration membrane in the microfiltration membrane filtration unit comprises a tubular membrane or a hollow fiber membrane.
4. The separation and purification apparatus as claimed in claim 1, wherein the operating pressure of the microfiltration membrane filtration unit is 0.05 to 0.3MPa, and the filtration temperature is 20 to 65 ℃.
5. The separation and purification apparatus as claimed in claim 3, wherein the operating pressure of the microfiltration membrane filtration unit is 0.05 to 0.3MPa and the filtration temperature is 20 to 65 ℃.
6. The separation and purification apparatus as claimed in claim 1, wherein the ultrafiltration membrane in the ultrafiltration membrane filtration unit has a molecular weight cut-off of 10000-.
7. The separation and purification apparatus of claim 1 or 5, wherein the ultrafiltration membrane in the ultrafiltration membrane filtration unit comprises a roll-type membrane or a hollow fiber membrane.
8. The separation and purification apparatus according to claim 3, wherein the hollow fiber membrane is made of one selected from polyvinylidene fluoride, polyethersulfone, polysulfone, and polyacrylonitrile.
9. The separation and purification apparatus according to claim 7, wherein the hollow fiber membrane is made of one selected from polyvinylidene fluoride, polyethersulfone, polysulfone, and polyacrylonitrile.
10. The separation and purification apparatus as claimed in claim 1, wherein the nanofiltration membrane in the nanofiltration membrane filtration unit has a molecular weight cut-off of 200-800 Da.
11. The separation and purification apparatus of claim 1, further comprising a pretreatment unit coupled to the microfiltration membrane filtration unit, the pretreatment unit comprising at least one of a centrifuge or a plate and frame filter.
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| CN202022872418.5U CN215138674U (en) | 2020-12-03 | 2020-12-03 | Separation and purification device for jerusalem artichoke polysaccharide |
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| CN202022872418.5U CN215138674U (en) | 2020-12-03 | 2020-12-03 | Separation and purification device for jerusalem artichoke polysaccharide |
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