Cavitation jet-enzymolysis combined extraction device for coconut protein

Abstract

The invention relates to the technical field of biological engineering, in particular to a coconut protein cavitation jet-enzymolysis combined extraction device which comprises a mixing hopper, a first tank body and a second tank body, a high-pressure pump and a first pump body are installed on the first tank body and the second tank body respectively, and a protein solution and an enzyme solution are contained in the first tank body and the second tank body respectively. The second pump body guides enzyme liquid into the mixing hopper through a pipeline, an impurity removal mechanism used for purifying mixed liquid generated by the protein solution and the enzyme liquid is arranged on the outer side of the mixing hopper, a mixing mechanism used for guiding nitrogen into the mixed liquid is further arranged on the mixing hopper, multiple layers of ultrafiltration membranes are arranged in the frame body, and a transmission assembly used for shaking the ultrafiltration membranes is arranged on the frame body. A protein solution driven by the high-pressure pump and an enzyme solution conveyed by the first pump body are combined to form a cavitation jet flow effect, high-speed jet flow can generate strong shearing force and turbulent flow, protein particles are broken, contact of enzyme and a substrate is accelerated, the enzymolysis reaction rate and uniformity are remarkably improved, and the extraction time is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of bioengineering, in particular to a coconut protein cavitation jet-enzyme hydrolysis combined extraction device. Background Art

[0002] Coconut protein, as a high-quality plant protein source, is rich in essential amino acids and has low allergenicity. Its demand has surged in functional foods, special medical foods, and cosmetics. However, coconut protein mixtures contain a variety of impurities (such as coconut oil droplets, fiber fragments, and enzymatic residues). Traditional single ultrafiltration membranes are susceptible to "membrane fouling," resulting in rapid attenuation of filtration flux and the need for frequent shutdowns for chemical cleaning, which leads to production interruptions and shortened membrane life. Static membrane filtration cannot adapt to the graded separation requirements of complex systems, and its selective interception capacity for proteins and impurities of different particle sizes is limited, making it difficult to meet the purity requirements of high-end foods. In addition, the traditional extraction process lacks antioxidant measures, and the protein is easily oxidized when exposed to an aerobic environment, resulting in loss of functional properties. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides a coconut protein cavitation jet-enzymatic hydrolysis combined extraction device, which has the advantage of efficiently breaking protein particles and solves the problem of low enzymatic hydrolysis efficiency caused by insufficient cell disruption.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The invention discloses a coconut protein cavitation jet-enzymatic hydrolysis combined extraction device, comprising a mixing hopper, a tank body 1 and a tank body 2, wherein the tank body 1 and the tank body 2 are respectively equipped with a high-pressure pump and a pump body 1, the tank body 1 and the tank body 2 are respectively filled with a protein solution and an enzyme solution, a guide ring is fixedly connected in the mixing hopper, a plurality of nozzles are fixedly connected to the guide pipe, the pump body 2 introduces the enzyme solution into the mixing hopper through a pipeline, an impurity removal mechanism for purifying a mixed solution produced by the protein solution and the enzyme solution is provided on the outside of the mixing hopper, a mixing mechanism for introducing nitrogen into the mixed solution is also provided on the mixing hopper, the impurity removal mechanism comprises a frame, a guide pipe is installed in communication between the frame and the mixing hopper, a multi-layer ultrafiltration membrane is provided in the frame, and a transmission component for shaking the ultrafiltration membrane is provided on the frame.

[0006] Preferably, the transmission assembly includes a transmission frame, the outer side of the mixing hopper is fixedly connected to the frame, a connecting shaft is rotatably mounted on the frame, the upper part of the transmission frame is fixedly connected to the connecting shaft, and the multi-layer ultrafiltration membrane is arranged on the transmission frame.

[0007] Preferably, a rotating shaft is rotatably mounted on the frame, a valve is mounted on the guide pipe, a guide shaft is fixed to the valve, a spur gear 1 is mounted on the guide shaft, and an incomplete gear meshing with the spur gear 1 is mounted on the rotating shaft.

[0008] Preferably, the frame is fixed with motor 2, the output end of motor 2 is fixed with a screw, the screw is threadedly connected with a toothed plate, the frame is fixed with a slide bar, the toothed plate is slidably connected to the slide bar, a spur gear 2 corresponding to the toothed plate is mounted on the connecting shaft, and a belt assembly is provided between the rotating shaft and the screw.

[0009] Preferably, drive roller 1 and drive roller 2 are rotatably installed on both sides of each layer of the transmission frame, a conveyor belt is provided between drive roller 1 and drive roller 2, a plurality of ultrafiltration membranes are connected to the transmission belt, and a motor 1 is fixed on the transmission frame for driving drive roller 1 to rotate for replacing the ultrafiltration membrane.

[0010] Preferably, the mixing mechanism includes a tank body three filled with nitrogen, and a pump body two is fixedly installed on the tank body three. The pump body two injects nitrogen into the upper part of the frame through a pipeline. A negative pressure pump is installed on one side of the frame, and the negative pressure pump is connected to the inside of the frame through a pipeline. An outlet pipe is installed on the pipeline of the negative pressure pump, and a flow rate sensor is installed on the outlet pipe.

[0011] Preferably, the belt assembly includes a pulley sleeved between the rotating shaft and the screw, and the pulleys are connected by a belt transmission.

[0012] Preferably, the pore sizes of the multi-layer ultrafiltration membrane decrease from top to bottom to achieve multi-stage fine filtration of the mixed liquid and improve the impurity removal effect.

[0013] Preferably, a control cabinet is installed outside the rack, the flow rate sensor is electrically connected to the control cabinet, and the control cabinet detects the gas flow rate information in the outlet pipe according to the flow rate sensor.

[0014] Preferably, the spraying directions of the multiple nozzles are divergently distributed, and the nozzle diameters of each nozzle are different, and they are arranged in order of gradually increasing from the center of the guide tube to the outside, so as to achieve differentiated spraying of the mixed liquid in different areas in the mixing hopper, further promoting sufficient mixing of the mixed liquid.

[0015] By means of the above technical solution, the present invention provides a coconut protein cavitation jet-enzymatic hydrolysis combined extraction device, which has at least the following beneficial effects:

[0016] 1. The coconut protein cavitation jet-enzyme hydrolysis combined extraction device combines the protein solution driven by a high-pressure pump with the enzyme solution transported by the pump body to form a cavitation jet effect. The high-speed jet can generate strong shear force and turbulence, breaking up protein particles and accelerating the contact between enzyme and substrate, significantly improving the enzymatic reaction rate and uniformity, and shortening the extraction time.

[0017] 2. The coconut protein cavitation jet-enzymatic hydrolysis combined extraction device effectively reduces the adhesion of pollutants on the membrane surface through mechanical vibration or membrane replacement, maintains a stable filtration flux, avoids the problems of easy clogging and decreased efficiency of traditional static membrane filtration, and extends the equipment operation time.

[0018] 3. The coconut protein cavitation jet-enzymatic hydrolysis combined extraction device creates a relatively stable and low-oxygen environment in the frame by adding inert gas. This not only helps to protect the activity of coconut protein and prevent it from oxidation and deterioration, but also reduces the growth of microorganisms during the filtration process, further ensuring the filtration effect and product quality. The downward movement of the gas can also increase the filtration speed of the ultrafiltration membrane.

[0019] 4. In the coconut protein cavitation jet-enzymatic hydrolysis combined extraction device, the bubbles formed by nitrogen can flush the surface of the ultrafiltration membrane during their descent and movement in the mixed liquid, reducing the deposition and blockage of impurities on the membrane surface. At the same time, the gas-liquid mixing strengthens the mass transfer process, allowing substances in the mixed liquid to pass through the ultrafiltration membrane more efficiently, thereby significantly improving the filtration speed of the ultrafiltration membrane.

[0020] 5. In the coconut protein cavitation jet-enzymatic hydrolysis combined extraction device, when the flow rate sensor senses that the gas flow rate is too slow, it means that the ultrafiltration membrane is too blocked and needs to be replaced. At this time, the control motor will start to run and the ultrafiltration membrane will be replaced to ensure efficient filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 is a side view of the present invention;

[0025] Figure 4 Schematic diagram of the external connection structure of the flow guide pipe of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the mixing mechanism of the present invention;

[0027] Figure 6 This is a schematic diagram of the external connection structure of the transmission roller 1 of the present invention.

[0028] Reference numerals:

[0029] 100, frame; 101, mixing hopper; 102, tank body 1; 103, high-pressure pump; 104, guide ring; 105, tank body 2; 106, pump body 1; 107, control cabinet;

[0030] 200, impurity removal mechanism; 201, frame; 202, flow guide tube; 203, ultrafiltration membrane; 204, opening; 205, liquid outlet pipe; 206, transmission assembly; 2061, transmission frame; 2062, connecting shaft; 2063, spur gear 2; 2064, motor 2; 2065, screw; 2066, toothed plate; 207, belt assembly; 208, incomplete gear; 209, flow guide shaft; 210, spur gear 1; 211, valve; 212, motor 1; 213, drive roller 1; 214, drive roller 2; 215, conveyor belt;

[0031] 300. Mixing mechanism; 301. Tank body three; 302. Pump body two; 303. Negative pressure pump; 304. Air outlet pipe; 305. Flow rate sensor. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] The following describes the coconut protein cavitation jet-enzymatic hydrolysis combined extraction device provided by some embodiments of the present invention in conjunction with the accompanying drawings.

[0034] Example 1:

[0035] Conventional methods rely on static mixing or low-speed stirring, which results in insufficient protein particle fragmentation, small contact area between enzyme and substrate, and slow reaction rate, leading to long extraction time and poor uniformity. In order to solve the above problems, Figure 1-Figure 2As shown, the coconut protein cavitation jet-enzyme hydrolysis combined extraction device provided by the present invention comprises a mixing hopper 101, a tank body 102 and a tank body 2 105, wherein the tank body 102 and the tank body 2 105 are respectively provided with a high-pressure pump 103 and a pump body 106, and the tank body 102 and the tank body 2 105 are respectively provided with a protein solution and an enzyme solution, a guide ring 104 is fixedly connected in the mixing hopper 101, a plurality of nozzles are fixedly connected on the guide pipe 202, and the pump body 2 302 introduces the enzyme solution into the mixing hopper 101 through a pipeline, and combines the protein solution driven by the high-pressure pump 103 with the enzyme solution conveyed by the pump body 106 to form a cavitation jet. Flow effect: The high-speed jet can generate strong shear force and turbulence, breaking up protein particles and accelerating the contact between enzyme and substrate, significantly improving the enzymatic reaction rate and uniformity, and shortening the extraction time. The outside of the mixing hopper 101 is provided with an impurity removal mechanism 200 for purifying the mixed solution produced by the protein solution and the enzyme solution, ensuring the high purity of the final protein solution, avoiding the limitations of single membrane filtration, and adapting to the separation requirements of the complex coconut protein system. The mixing hopper 101 is also provided with a mixing mechanism 300 for introducing nitrogen into the mixed solution. The gas-liquid mixing reduces the risk of protein oxidation and protects its natural structure and functional activity.

[0036] When the static ultrafiltration membrane is used to process a complex system of coconut protein, impurities are easily deposited on the membrane surface to form "membrane pollution", resulting in a decrease in permeability and filtration efficiency. Frequent shutdown for cleaning or replacement is required, affecting production continuity. In order to solve the above problems, the impurity removal mechanism 200 includes a frame 201, and a liquid outlet pipe 205 is installed at the bottom of the frame 201. A guide pipe 202 is installed between the frame 201 and the mixing hopper 101. A plurality of openings 204 are provided at the bottom of the guide pipe 202. A multi-layer ultrafiltration membrane 203 is provided in the frame 201, and a transmission component 206 for shaking the ultrafiltration membrane 203 is provided on the frame 201 to make the ultrafiltration membrane 203 vibrate or shake, which can effectively reduce the deposition and blockage of impurities on the membrane surface and maintain the permeability of the membrane pores.

[0037] Furthermore, the spray directions of the multiple nozzles are distributed in a divergent manner, and the nozzle diameter of each nozzle is different. They are arranged in an order of gradually increasing from the center of the guide tube 202 to the outside, so as to achieve differentiated spraying of the mixed liquid in different areas in the mixing hopper 101, further promoting sufficient mixing of the mixed liquid.

[0038] According to the embodiment, tank body 1 102 and tank body 2 105 independently store protein solution and enzyme solution, and the high-pressure pump 103 and pump body 1 106 accurately control the feed pressure and flow rate, which makes it easy to adjust the process conditions according to the characteristics of different raw materials and improve the versatility and flexibility of the device.

[0039] Example 2:

[0040] When using traditional fixed ultrafiltration membrane to filter coconut protein mixture, protein particles, enzymatic residues and other impurities are easily deposited on the membrane surface to form a filter cake layer, resulting in a rapid decrease in filtration flux. In order to solve the above problems, combined with Figure 4 As shown, on the basis of Example 1, the transmission assembly 206 includes a transmission frame 2061, the outer side of the mixing hopper 101 is fixedly connected to the frame 100, and a connecting shaft 2062 is rotatably installed on the frame 100. The upper part of the transmission frame 2061 is fixed to the connecting shaft 2062, and the multi-layer ultrafiltration membrane 203 is all arranged on the transmission frame 2061. The connecting shaft 2062 rotates left and right, and then can drive the ultrafiltration membrane 203 on the transmission frame 2061 to swing. Through mechanical vibration or replacement of the membrane, the adhesion of pollutants on the membrane surface is effectively reduced, and a stable filtration flux is maintained. The problem of easy clogging and reduced efficiency of traditional static membrane filtration is avoided, and the operation time of the equipment is extended.

[0041] If the valve of the diversion pipe is continuously fully opened, the mixed solution after enzymatic hydrolysis may flow into the frame in a large amount in a short period of time, causing the upper ultrafiltration membrane (with a larger pore size) to instantly intercept excessive large particles of impurities, resulting in the membrane pores being mechanically stuck by the impurity particles. In order to solve the above problem, a rotating shaft is rotatably installed on the frame 100, a valve 211 is installed on the diversion pipe 202, a diversion shaft 209 is fixedly connected to the valve 211, a spur gear 210 is installed on the diversion shaft 209, and a gear 210 is meshed with the spur gear 210 on the rotating shaft. The incomplete gear 208 and the rotating shaft rotate to drive the incomplete gear 208 to rotate forward and reverse. The incomplete gear 208 rotates through the spur gear 1 210. The guide shaft 209 rotates along with the spur gear 1 210. The guide shaft 209 drives the valve 211 to open and close the gap, which can accurately control the flow rate and flow velocity of the mixed liquid in the guide pipe 202, and prevent the mixed liquid from pouring into the frame 201 of the impurity removal mechanism 200 in large quantities in a short time, causing the ultrafiltration membrane 203 to be blocked due to excessive load or poor filtering effect.

[0042] Furthermore, a second motor 2064 is fixedly mounted on the frame 100, a screw 2065 is fixedly connected to the output end of the second motor 2064, a toothed plate 2066 is threadedly connected to the screw 2065, a slide bar is fixedly mounted on the frame 100, the toothed plate 2066 is slidably connected to the slide bar, a spur gear 2063 corresponding to the toothed plate 2066 is sleeved on the connecting shaft 2062, a belt assembly 207 is provided between the rotating shaft and the screw 2065, the second motor 2064 is started to drive the screw 2065 to rotate forward and reverse, and the screw 2065 rotates to drive the toothed plate 20 66 moves left and right, the tooth plate 2066 engages with the spur gear 2063 to drive the transmission frame 2061 thereon to deflect left and right, which can then drive the ultrafiltration membrane 203 to deflect, so that the mixed liquid on the surface of the ultrafiltration membrane 203 can be distributed more evenly, avoiding local accumulation of the mixed liquid on the surface of the ultrafiltration membrane 203, thereby increasing the effective filtration area of the ultrafiltration membrane 203. At the same time, the swinging can also generate a certain shear force, which is helpful to remove impurities and filter cakes on the surface of the ultrafiltration membrane 203 and prevent membrane pollution, thereby improving the filtration efficiency and the purity of protein extraction.

[0043] The belt assembly 207 includes a pulley mounted between the rotating shaft and the screw 2065. The pulleys are connected by a belt drive. The screw 2065 drives the rotating shaft to rotate through the belt assembly 207. Then, by setting a single power source, different functions can be achieved, which is conducive to cost reduction.

[0044] According to the embodiments, different coconut raw materials or different extraction processes may have different filtration requirements for the ultrafiltration membrane 203. This control method of the ultrafiltration membrane 203 that can adjust the swing amplitude and frequency enables the device to adapt to different production conditions, has stronger versatility and adaptability, and can meet diverse production needs.

[0045] Example 3:

[0046] During the use of the traditional ultrafiltration membrane 203, the filtration efficiency will decrease due to impurities blocking, which requires the machine to be shut down for cleaning or replacement. The operation is cumbersome and affects the production continuity. In order to solve the above problems, combined with Figure 6 As shown, on the basis of Example 1, a transmission roller 1 213 and a transmission roller 2 214 are rotatably installed on both sides of each layer of the transmission frame 2061, and a conveyor belt 215 is provided between the transmission roller 1 213 and the transmission roller 2 214, and a plurality of ultrafiltration membranes 203 are connected to the transmission belt. The transmission frame 2061 is fixed with a motor 1 212 for driving the transmission roller 1 213 to rotate for replacing the ultrafiltration membrane 203. When the used ultrafiltration membrane 203 has been used for too long and needs to be replaced, the motor 1 212 starts to drive the transmission roller 1 213 to rotate, and the transmission roller drives the conveyor belt 215 to move, and then the unused ultrafiltration membrane 203 can be moved to the filtering position.

[0047] Specifically, the pore sizes of the multi-layer ultrafiltration membrane 203 decrease from top to bottom to achieve multi-stage fine filtration of the mixed liquid and improve the impurity removal effect.

[0048] According to the embodiment, dynamic replacement is achieved through a mechanical transmission structure, which avoids manual intervention and downtime losses, and improves the degree of equipment automation and production efficiency.

[0049] Example 4:

[0050] The traditional extraction process lacks effective antioxidant protection, and the oxygen environment easily leads to protein structure destruction and reduced functional activity. In order to solve the above problems, combined with Figure 1 、 Figure 2 and Figure 5 As shown, on the basis of embodiment 1, the mixing mechanism 300 includes a tank body 301 filled with nitrogen, a pump body 202 is fixed on the tank body 301, the pump body 202 injects nitrogen into the upper part of the frame 201 through a pipeline, a negative pressure pump 303 is installed on one side of the frame 201, the negative pressure pump 303 is connected to the inside of the frame 201 through a pipeline, an outlet pipe 304 is installed on the pipeline of the negative pressure pump 303, a flow rate sensor 305 is installed on the outlet pipe 304, and the pump body 203 is connected to the outlet pipe 304. 302 injects nitrogen into the frame 201, and then the negative pressure pump 303 is started to bring the nitrogen into contact with the mixed liquid to mix the two. Nitrogen, as an inert gas, creates a relatively stable and low-oxygen environment in the frame 201, which not only helps to protect the activity of coconut protein and prevent it from oxidation and deterioration, but also reduces the growth of microorganisms during the filtration process, further ensuring the filtration effect and product quality. The downward movement of the gas can also increase the filtration speed of the ultrafiltration membrane 203.

[0051] The negative pressure pump 303 allows the nitrogen to fully contact the mixed liquid and move downward. This gas-liquid mixing method breaks the traditional single liquid filtration model. The bubbles formed by the nitrogen can have a flushing effect on the surface of the ultrafiltration membrane 203 during the process of descending and moving in the mixed liquid, reducing the deposition and blockage of impurities on the membrane surface. At the same time, the gas-liquid mixing strengthens the mass transfer process, allowing the substances in the mixed liquid to pass through the ultrafiltration membrane 203 more efficiently, thereby significantly improving the filtration speed of the ultrafiltration membrane 203.

[0052] Specifically, a control cabinet 107 is installed on the outside of the rack 100, and the flow rate sensor 305 is electrically connected to the control cabinet 107. The control cabinet 107 controls the motor 1 212 to run and replace the ultrafiltration membrane 203 based on the gas flow rate information in the outlet pipe 304 detected by the flow rate sensor 305. When the flow rate sensor 305 senses that the gas flow rate is too slow, it means that the ultrafiltration membrane 203 is too blocked and needs to be replaced.

[0053] Through the above embodiment, it can be known that: the protein solution in tank body 102 is transported to mixing hopper 101 through high-pressure pump 103, and the enzyme solution in tank body 2 105 is transported to mixing hopper 101 through pump body 106. In mixing hopper 101, multiple nozzles with divergent distribution and nozzle diameter gradually increasing from center to outside are formed on fixed guide ring 104 and guide pipe 202, forming cavitation jet effect. The strong shear force and turbulence generated by high-speed jet break protein particles, accelerate the contact between enzyme and substrate, and improve the enzymatic reaction rate and uniformity; the mixed solution after enzymolysis enters the frame 201 of impurity removal mechanism 200 through guide pipe 202, and the multi-layer ultrafiltration membrane 203 with decreasing pore size from top to bottom in frame 201 performs multi-stage fine filtration on the mixed solution. At the same time, motor 2 2064 on frame 100 drives connecting shaft 2062 to rotate through screw 2065, tooth plate 2066 and spur gear 2 2063, driving fixed The transmission frame 2061 of the connecting shaft 2062 deflects left and right, causing the ultrafiltration membrane 203 to swing, removing impurities and filter cakes on the membrane surface by shear force, preventing membrane contamination, and maintaining filtration flux; the nitrogen mixed into the tank body 301 in the mechanism 300 is injected into the upper part of the frame 201 through the pump body 2 302, and the negative pressure pump 303 is started to fully contact the nitrogen with the mixed liquid and move downward, and the bubbles formed wash the surface of the ultrafiltration membrane 203, reducing impurity deposition. Nitrogen acts as an inert gas to create a low oxygen environment to protect protein activity. The flow rate sensor 305 on the outlet pipe 304 monitors the gas flow rate in real time and feeds back to the control cabinet 107. When it is detected that the flow rate is too slow (representing membrane clogging), the control cabinet 107 controls the motor 1 212 to drive the transmission roller to rotate, and the unused ultrafiltration membrane 203 is moved to the filtration position by the conveyor belt 215 to achieve automatic replacement, and finally completes the extraction of high-purity coconut protein solution.

[0054] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Coconut protein cavitation jet-enzymatic hydrolysis combined extraction device, characterized in that: The invention comprises a mixing hopper (101), a tank body 1 (102) and a tank body 2 (105), wherein a high-pressure pump (103) and a pump body 1 (106) are respectively installed on the tank body 1 (102) and the tank body 2 (105), wherein the tank body 1 (102) and the tank body 2 (105) are respectively filled with a protein solution and an enzyme solution, a guide ring (104) is fixedly connected in the mixing hopper (101), a plurality of nozzles are fixedly connected on the guide pipe (202), and the pump body 2 (302) introduces the enzyme solution into the mixing hopper (101) through a pipeline, an impurity removal mechanism (200) for purifying a mixed solution produced by the protein solution and the enzyme solution is provided on the outside of the mixing hopper (101), and a mixing mechanism (300) for introducing nitrogen into the mixed solution is also provided on the mixing hopper (101); The impurity removal mechanism (200) comprises a frame (201), a flow guide pipe (202) is installed between the frame (201) and the mixing hopper (101), a multi-layer ultrafiltration membrane (203) is arranged in the frame (201), and a transmission assembly (206) for shaking the ultrafiltration membrane (203) is provided on the frame (201).

2. The coconut protein cavitation jet-enzyme hydrolysis combined extraction device according to claim 1, wherein: The transmission assembly (206) includes a transmission frame (2061), the outer side of the mixing hopper (101) is fixedly connected to the frame (100), a connecting shaft (2062) is rotatably mounted on the frame (100), the upper portion of the transmission frame (2061) is fixedly connected to the connecting shaft (2062), and the multi-layer ultrafiltration membrane (203) is arranged on the transmission frame (2061).

3. The coconut protein cavitation jet-enzyme hydrolysis combined extraction device according to claim 2, wherein: A rotating shaft is rotatably mounted on the frame (100), a valve (211) is mounted on the guide pipe (202), a guide shaft (209) is fixedly connected to the valve (211), a spur gear (210) is mounted on the guide shaft (209), and an incomplete gear (208) is mounted on the rotating shaft for transmission in meshing engagement with the spur gear (210).

4. The coconut protein cavitation jet-enzyme hydrolysis combined extraction device according to claim 3, wherein: The frame (100) is fixedly provided with a second motor (2064), the output end of the second motor (2064) is fixedly connected with a screw rod (2065), the screw rod (2065) is threadedly connected with a tooth plate (2066), the frame (100) is fixedly provided with a sliding rod, the tooth plate (2066) is slidably connected to the sliding rod, the connecting shaft (2062) is provided with a second spur gear (2063) corresponding to the tooth plate (2066), and a belt assembly (207) is provided between the rotating shaft and the screw rod (2065).

5. The coconut protein cavitation jet-enzyme hydrolysis combined extraction device according to claim 4, wherein: A transmission roller 1 (213) and a transmission roller 2 (214) are rotatably mounted on both sides of each layer of the transmission frame (2061), a conveyor belt (215) is provided between the transmission roller 1 (213) and the transmission roller 2 (214), and a plurality of ultrafiltration membranes (203) are connected to the transmission belt. A motor 1 (212) is fixedly mounted on the transmission frame (2061) for driving the transmission roller 1 (213) to rotate for replacing the ultrafiltration membrane (203).

6. The coconut protein cavitation jet-enzymatic hydrolysis combined extraction device according to claim 2, characterized in that: The mixing mechanism (300) includes a tank body (301) filled with nitrogen. A pump body (302) is fixedly installed on the tank body (301). The pump body (302) injects nitrogen into the upper part of the frame (201) through a pipeline. A negative pressure pump (303) is installed on one side of the frame (201). The negative pressure pump (303) is connected to the inside of the frame (201) through a pipeline. An outlet pipe (304) is installed on the pipeline of the negative pressure pump (303). A flow rate sensor (305) is installed on the outlet pipe (304).

7. The coconut protein cavitation jet-enzymatic hydrolysis combined extraction device according to claim 4, characterized in that: The belt assembly (207) comprises a pulley sleeved between the rotating shaft and the screw (2065), and the pulleys are connected via a belt transmission.

8. The coconut protein cavitation jet-enzymatic hydrolysis combined extraction device according to claim 1, characterized in that: The pore sizes of the multi-layer ultrafiltration membrane (203) decrease from top to bottom, so as to achieve multi-stage fine filtration of the mixed liquid and improve the impurity removal effect.

9. The coconut protein cavitation jet-enzymatic hydrolysis combined extraction device according to claim 6, characterized in that: A control cabinet (107) is installed outside the frame (100), and the flow rate sensor (305) is electrically connected to the control cabinet (107). The control cabinet (107) receives information about the gas flow rate in the gas outlet pipe (304) detected by the flow rate sensor (305).

10. The coconut protein cavitation jet-enzymatic hydrolysis combined extraction device according to claim 1, characterized in that: The spraying directions of the multiple nozzles are distributed in a divergent manner, and the nozzle diameters of each nozzle are different. They are arranged in an order of gradually increasing from the center of the guide tube (202) to the outside, so as to achieve differentiated spraying of the mixed liquid in different areas in the mixing hopper (101), further promoting sufficient mixing of the mixed liquid.

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