High-pressure jet Venturi tube for improving solubility of rice protein

Abstract

The utility model provides a high-pressure jet Venturi tube for improving the solubility of rice protein, and belongs to the technical field of food processing equipment. Comprising a main venturi tube; the auxiliary venturi tube is arranged at the inner left part of the main venturi tube; the gas-liquid mixing chamber is formed in the right part in the main Venturi tube; the zigzag spoilers are annularly connected to the inner wall of the gas-liquid mixing chamber; the honeycomb-shaped micro-pore plate is arranged on the right side of the sawtooth-shaped spoiler, and a plurality of hexagonal honeycomb runner holes are formed in the surface of the honeycomb-shaped micro-pore plate; the nozzle cap is connected to the right end of the main Venturi tube, and a nozzle opening is formed in the right end of the nozzle cap; according to the method, the shearing efficiency is enhanced by utilizing instantaneous ultrahigh pressure generated by collapse of microbubbles, so that the rice protein aggregate is efficiently crushed, the protein is protected by utilizing inert gas and is prevented from being oxidized in the modification process, and finally, the protein is sprayed out from a nozzle opening, so that the protein structure is expanded, more hydrophilic groups are exposed, and the solubility of the protein is improved.

Description

Technical Field

[0001] This application belongs to the field of food processing equipment technology, specifically relating to a high-pressure jet venturi tube for improving the solubility of rice protein. Background Technology

[0002] The solubility of rice protein is closely related to its molecular structure. Due to the large number of sulfhydryl groups and disulfide bonds within and between rice protein molecules, these structural characteristics contribute to its poor solubility. Methods to improve the solubility of rice protein include physical methods (such as high-pressure treatment, high-pressure microfluidic treatment, and high-temperature cooking) and chemical methods (such as enzymatic treatment, acid removal of phthalates, and alkaline extraction). These methods can alter the molecular structure of rice protein, making it easier to disperse in solvents.

[0003] Traditional rice protein modification technologies have long faced bottlenecks in efficiency and functional improvement. In particular, while existing high-pressure homogenizing equipment can break down particles through jets, the gas-liquid interaction has long been neglected. Although single-phase high-pressure jets can deagglomerate protein aggregates through mechanical shearing, they lack the synergistic effect of a gas medium: on the one hand, the instantaneous ultra-high pressure generated by microbubble collapse is not utilized to enhance shearing efficiency; on the other hand, the temperature rise (up to 70°C) caused by high-speed liquid flow accelerates protein oxidation and denaturation. Therefore, how to efficiently break down protein aggregates remains a technical challenge that urgently needs to be overcome in this field.

[0004] To address the above issues, this application designs a high-pressure jet venturi tube for improving the solubility of rice protein, thereby solving technical challenges such as how to efficiently break up rice protein aggregates. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, this application designs a high-pressure jet venturi tube to improve the solubility of rice protein, so as to efficiently break up rice protein aggregates, etc.

[0007] This application provides a high-pressure jet venturi tube for improving the solubility of rice protein, comprising: a main venturi tube; a secondary venturi tube disposed in the left part of the main venturi tube; a gas-liquid mixing chamber disposed in the right part of the main venturi tube; several serrated baffles arranged in a ring and connected to the inner wall of the gas-liquid mixing chamber; a honeycomb microporous plate disposed to the right of the serrated baffles, and the surface of the honeycomb microporous plate having several hexagonal honeycomb flow channel holes; and a nozzle cap connected to the right end of the main venturi tube, with a nozzle opening at the right end of the nozzle cap.

[0008] In some possible embodiments, an air intake chamber is provided on the left side of the main venturi tube, and the left end of the secondary venturi tube is fixed to the inner left wall of the air intake chamber.

[0009] In some possible embodiments, the left end of the main venturi tube is connected to a feed pipe, which communicates with the secondary venturi tube.

[0010] In some possible embodiments, an air intake pipe is connected to the upper left side of the main venturi tube, and the air intake pipe communicates with the air intake chamber.

[0011] In some possible embodiments, a collection chamber is provided in the middle of the main venturi tube, and the air inlet chamber and the gas-liquid mixing chamber are both connected to the collection chamber.

[0012] In some possible embodiments, the right end of the main venturi tube has a diffusion chamber communicating with the gas-liquid mixing chamber, and the honeycomb microporous plate is fixed in the diffusion chamber.

[0013] In some possible embodiments, the nozzle cap has a polymerization chamber at its left end, and both the diffusion chamber and the nozzle orifice communicate with the polymerization chamber.

[0014] In some possible embodiments, the serrated spoiler has a tooth depth of 0.2 mm, a tooth pitch of 0.5 mm, and an inclination angle of 45°.

[0015] In some possible embodiments, the diameter of the honeycomb channel holes is 0.3 mm, and the array density of the honeycomb channel holes on the honeycomb microporous plate is 200 holes / cm².

[0016] Compared with the prior art, the technical solution provided in this application has at least the following beneficial effects:

[0017] This application provides a high-pressure jet venturi tube for improving the solubility of rice protein. The process involves mixing a rice protein suspension with an inert mixture of CO2 and N2 in a gas-liquid mixing chamber. A serrated baffle induces turbulence and initial cavitation. A honeycomb microporous plate then breaks the cavitation bubbles into micron-sized bubbles. The honeycomb flow channels guide the fluid to form a uniformly distributed microjet, simultaneously initiating secondary cavitation and resonating with the initial cavitation, extending the cavitation time, reducing the surface tension of the solution, and promoting the exposure of hydrophilic groups in the protein. In summary, this facilitates a cascade effect of "mechanical shearing - cavitation impact - interface activation." The device utilizes the instantaneous ultra-high pressure generated by the collapse of microbubbles to enhance shear efficiency, thereby efficiently breaking down rice protein aggregates. The inert gas protects the protein from oxidation during modification. Finally, the protein is ejected from the nozzle, causing the protein structure to unfold and exposing more hydrophilic groups, thus improving protein solubility.

[0018] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-pressure jet venturi tube for improving the solubility of rice protein according to some embodiments of this application;

[0021] Figure 2 This is a schematic diagram of the overall internal structure of a high-pressure jet venturi tube for improving the solubility of rice protein according to some embodiments of this application;

[0022] Figure 3 This is a side view of a serrated baffle structure of a high-pressure jet venturi tube for improving the solubility of rice protein, according to some embodiments of this application.

[0023] Figure 4 This is a side view schematic diagram of a honeycomb microporous plate structure of a high-pressure jet venturi tube for improving the solubility of rice protein, according to some embodiments of this application.

[0024] Figure label:

[0025] 1. Main Venturi tube; 2. Secondary Venturi tube; 3. Feed pipe; 4. Air inlet pipe; 5. Air inlet chamber; 6. Gathering chamber; 7. Gas-liquid mixing chamber; 8. Serrated baffle; 9. Diffusion chamber; 10. Honeycomb microporous plate; 11. Nozzle cap; 12. Aggregation chamber; 13. Nozzle orifice; 14. Honeycomb flow channel hole. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0028] The following reference Figures 1 to 3 This application describes a high-pressure jet venturi tube for improving the solubility of rice protein, according to some embodiments thereof.

[0029] Please see Figures 1 to 3This application provides a high-pressure jet venturi tube for improving the solubility of rice protein, comprising: a main venturi tube 1; a secondary venturi tube 2 located on the left side of the main venturi tube 1; a gas-liquid mixing chamber 7 located on the right side of the main venturi tube 1; and several serrated baffles 8 arranged in a ring and connected to the inner wall of the gas-liquid mixing chamber 7. The main venturi tube 1 has a feed pipe 3 connected to its left end, which communicates with the secondary venturi tube 2. The main venturi tube 1 has an air inlet pipe 4 connected to its upper left side, which communicates with an air inlet chamber 5. A collection chamber 6 is located in the middle of the main venturi tube 1, and both the air inlet chamber 5 and the gas-liquid mixing chamber 7 communicate with the collection chamber 6. The serrated baffles 8 have a tooth depth of 0.2 mm, a tooth pitch of 0.5 mm, and an inclination angle of 45°.

[0030] In this embodiment, rice protein powder and deionized water are first mixed at a solid-liquid ratio of 1:10 to form a rice protein suspension. With the inert gas mixture of CO2 and N2 set at a volume ratio of 3:7, the mixed rice protein suspension is introduced into the secondary Venturi tube 2 through the feed pipe 3. The secondary Venturi tube 2 accelerates the rice protein suspension into the air inlet chamber 5, the collection chamber 6, and the gas-liquid mixing chamber 7. Simultaneously, the mixed CO2 and N2 are sequentially introduced into the air inlet chamber 5, the collection chamber 6, and the gas-liquid mixing chamber 7 through the air inlet pipe 4. The mixed gas is mixed until the gas-liquid volume ratio is 1:6. During the mixing process of CO2 and N2 with rice protein suspension in gas-liquid mixing chamber 7, the mixed gas of CO2 and N2 and rice protein suspension form a gas-liquid two-phase flow. The sawtooth-shaped turbulence plate 8 periodically destroys the fluid boundary layer, which is conducive to inducing turbulence and realizing the first cavitation effect. Its tooth-shaped structure forms alternating vortices in the high-speed flow field, which greatly enhances the shear force and stimulates cavitation bubble nucleation. The local high pressure and micro-jet generated when the cavitation bubbles collapse can break the hydrophobic bonds and disulfide bonds of protein molecules.

[0031] In some embodiments, a honeycomb microporous plate 10 is disposed to the right of the sawtooth-shaped baffle 8, and the surface of the honeycomb microporous plate 10 has a plurality of hexagonal honeycomb flow channel holes 14. An air inlet chamber 5 is provided in the left part of the main venturi tube 1, and the left end of the secondary venturi tube 2 is fixed to the inner left wall of the air inlet chamber 5. A diffusion chamber 9 communicating with the gas-liquid mixing chamber 7 is provided in the right end of the main venturi tube 1. The honeycomb microporous plate 10 is fixed in the diffusion chamber 9. A polymerization chamber 12 is provided in the left end of the nozzle cap 11. The diffusion chamber 9 and the nozzle opening 13 are both connected to the polymerization chamber 12. The diameter of the honeycomb flow channel holes 14 is 0.3 mm, and the array density of the honeycomb flow channel holes 14 on the honeycomb microporous plate 10 is 200 holes / cm².

[0032] In this embodiment, the protein solution after the first cavitation then cuts the cavitation bubbles into micron-sized bubbles through the honeycomb flow channel holes 14 on the honeycomb microporous plate 10. At the same time, the honeycomb flow channel holes 14 guide the fluid to form a uniformly distributed microjet, thereby initiating secondary cavitation and resonating with the first cavitation. This helps to prolong the cavitation time, reduce the surface tension of the solution, and promote the exposure of the protein's hydrophilic groups. In summary, this facilitates the synergistic formation of a cascade effect of "mechanical shearing-cavitation impact-interface activation".

[0033] In some embodiments, the nozzle cap 11 is connected to the right end of the main venturi tube 1, and the right end of the nozzle cap 11 has a nozzle opening 13.

[0034] In this embodiment, the main Venturi tube 1 accelerates the injection of protein into the polymerization chamber 12 and the nozzle 13, and then accelerates its ejection from the nozzle 13 inside the nozzle cap 11, causing the protein structure to unfold. In summary, this device utilizes the instantaneous ultra-high pressure generated by the collapse of microbubbles to enhance shear efficiency, thereby efficiently breaking down rice protein aggregates. It also uses inert gas to protect the protein from oxidation during the modification process. Finally, the protein structure unfolds from the nozzle 13, exposing more hydrophilic groups and improving protein solubility.

[0035] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-pressure jet venturi tube for improving the solubility of rice protein, characterized in that, include: Main Venturi tube (1); The secondary Venturi tube (2) is located inside the left side of the main Venturi tube (1); The gas-liquid mixing chamber (7) is located on the right side inside the main Venturi tube (1); Several sawtooth-shaped baffles (8) are arranged in a ring and are connected to the inner wall of the gas-liquid mixing chamber (7); A honeycomb microporous plate (10) is located to the right of the sawtooth-shaped baffle (8), and the surface of the honeycomb microporous plate (10) has several hexagonal honeycomb flow channel holes (14). The nozzle cap (11) is connected to the right end of the main venturi tube (1), and the nozzle cap (11) has a nozzle opening (13) at the right end.

2. The high-pressure jet venturi tube for improving the solubility of rice protein according to claim 1, characterized in that, An air intake chamber (5) is provided on the left side of the main venturi tube (1), and the left end of the auxiliary venturi tube (2) is fixed to the inner left wall of the air intake chamber (5).

3. A high-pressure jet venturi tube for improving the solubility of rice protein according to claim 1, characterized in that, The main venturi tube (1) is connected to a feed pipe (3) at its left end, and the feed pipe (3) is connected to the secondary venturi tube (2).

4. A high-pressure jet venturi tube for improving the solubility of rice protein according to claim 2, characterized in that, The upper left side of the main venturi tube (1) is connected to an air inlet pipe (4), which is connected to the air inlet chamber (5).

5. A high-pressure jet venturi tube for improving the solubility of rice protein according to claim 2, characterized in that, The main Venturi tube (1) has a collection chamber (6) in the middle, and the air inlet chamber (5) and the gas-liquid mixing chamber (7) are connected to the collection chamber (6).

6. A high-pressure jet venturi tube for improving the solubility of rice protein according to claim 1, characterized in that, The main Venturi tube (1) has a diffusion chamber (9) at its right end that communicates with the gas-liquid mixing chamber (7), and the honeycomb microporous plate (10) is fixed inside the diffusion chamber (9).

7. A high-pressure jet venturi tube for improving the solubility of rice protein according to claim 6, characterized in that, The nozzle cap (11) has a polymerization chamber (12) at its left end, and the diffusion chamber (9) and the nozzle opening (13) are both connected to the polymerization chamber (12).

8. A high-pressure jet venturi tube for improving the solubility of rice protein according to claim 1, characterized in that, The sawtooth-shaped spoiler (8) has a tooth depth of 0.2 mm, a tooth pitch of 0.5 mm, and an inclination angle of 45°.

9. A high-pressure jet venturi tube for improving the solubility of rice protein according to claim 1, characterized in that, The diameter of the honeycomb flow channel hole (14) is 0.3 mm, and the array density of the honeycomb flow channel hole (14) on the honeycomb microporous plate (10) is 200 holes / cm².

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