Pickering emulsion preparation system based on pea protein

Abstract

A Pickering emulsion preparation system based on pea protein comprises: an oil tank, the lower end of which is provided with an oil output pipeline; an acid liquor output pipeline is arranged at the lower end of the acid tank; the upper end of the dissolving tank is provided with two feed ports which are respectively communicated with a raw material input pipeline and an acid liquid output pipeline, and the lower end is provided with a dissolving liquid conveying pipeline; the upper end of the oil-water premixing tank is provided with two feed ports which are respectively communicated with an oil output pipeline and a dissolved liquid conveying pipeline, and the lower end is provided with a mixed liquid conveying pipeline; the input end of the high-speed disperser is communicated with the mixed liquid conveying pipeline, and the output end is provided with a primary emulsion output pipeline; the input end of the dynamic high-pressure micro-jet device is communicated with the primary emulsion output pipeline, and the output end of the dynamic high-pressure micro-jet device is connected with a finished product refrigeration tank. According to the Pickering emulsion preparation system based on the pea protein, provided by the utility model, the accumulation of emulsion is reduced, and the stability of the obtained emulsion is improved; meanwhile, the mixing of the raw materials is automatically controlled through the flow control device and the PH control device, so that the preparation efficiency and the quality stability of the Pickering emulsion are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Pickering emulsion preparation, in particular to a Pickering emulsion preparation system based on pea protein. Background Art

[0002] Pea protein is rich in nutritional value, with an appropriate and balanced composition of essential amino acids (EAAs) that closely matches the standard profile recommended by FAO / WHO. It is a high-quality protein that is easily absorbed and efficiently utilized by the human body. Currently, China's pea processing products still lag significantly behind internationally advanced levels. Therefore, it is crucial to expand the pea protein industry chain and increase the added value of its products.

[0003] Pickering emulsion is an emulsion stabilized by solid particles as emulsifiers. This emulsion was first discovered by scientist Pickering in the early 20th century and named after his surname. Compared with traditional emulsions stabilized by surfactants, Pickering emulsions have higher stability and lower toxicity. Its stability mainly comes from the adsorption of solid particles at the oil-water interface and the formation of monolayer or multilayer films, thereby preventing the aggregation and flocculation of droplets. It has been widely used for the embedding and delivery of functional factors. However, to date, there has been almost no research on the preparation of functional Pickering emulsions using pea protein as a surfactant, which has become a technical problem that needs to be solved urgently by those skilled in the art.

[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a Pickering emulsion preparation system based on pea protein to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solution of the present invention and facilitating the understanding of those skilled in the art. It cannot be assumed that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the present invention. Utility Model Content

[0006] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the present invention is to disclose a Pickering emulsion preparation system based on pea protein, which is used to prepare Pickering emulsion using pea protein as a surfactant.

[0007] The utility model discloses a Pickering emulsion preparation system based on pea protein, comprising:

[0008] Oil tank, with an oil output pipeline at the lower end of the oil tank for delivering oil to the oil-water premix tank;

[0009] Acid tank, with an acid liquid output pipeline at the lower end of the acid tank for transporting acid liquid to the dissolving tank;

[0010] A dissolving tank is provided with two feed ports at the upper end thereof, which are connected to a raw material input pipeline and an acid liquid output pipeline for the entry of pea protein materials respectively; a dissolving liquid delivery pipeline is provided at the lower end thereof for delivering the dissolved pea protein solution to the oil-water premix tank;

[0011] The oil-water premixing tank has two feed ports at its upper end, which are connected to the oil output pipeline and the dissolving liquid delivery pipeline respectively; the lower end of the oil-water premixing tank is provided with a mixed liquid delivery pipeline for delivering the oil-water mixture to the high-speed disperser;

[0012] A high-speed disperser, wherein the input end of the high-speed disperser is connected to the mixed liquid delivery pipeline, and the output end of the high-speed disperser is provided with a primary emulsion output pipeline for delivering the primary emulsion obtained by stirring and dispersing the oil-water mixture to the dynamic high-pressure microfluidizer;

[0013] A dynamic high-pressure microfluidic device, wherein the input end of the dynamic high-pressure microfluidic device is connected to the primary emulsion output pipeline, and the dynamic high-pressure microfluidic device circulates the primary emulsion through dynamic high-pressure microfluidic technology to obtain the final Pickering emulsion; the output end of the dynamic high-pressure microfluidic device is connected to the finished product refrigerated tank, which is used to transport the Pickering emulsion into the finished product refrigerated tank.

[0014] Optimal technical solution: a first delivery pump is provided on the oil output pipeline; a second delivery pump is provided on the acid output pipeline; the first delivery pump and the second delivery pump are centrifugal pumps to ensure the delivery stability of oil and acid.

[0015] Optimal technical solution: A flow control device is also provided on the oil output pipeline; a pH control device is also provided on the acid output pipeline to improve the delivery accuracy of oil and acid.

[0016] Preferred technical solution: The flow control device includes a flow meter and a first control valve arranged on the oil output pipeline, and the flow meter and the first control valve are connected through a first controller; the pH control device includes a second control valve arranged on the acid output pipeline and a pH meter arranged in the dissolution tank, and the second control valve and the pH meter are connected through a second controller to realize automatic control of the oil and acid delivery amount.

[0017] Optimal technical solution: a third delivery pump is provided on the dissolved liquid delivery pipeline; a fourth delivery pump is provided on the mixed liquid delivery pipeline; a fifth delivery pump is provided on the colostrum output pipeline; the third delivery pump, the fourth delivery pump and the fifth delivery pump are rotor pumps, which are convenient for installation and movement.

[0018] Preferred technical solution: The speed of the high-speed disperser is ≥10,000 r / min to ensure the internal dispersion effect of the primary emulsion.

[0019] Preferred technical solution: The refrigeration temperature of the finished refrigerated tank can be stabilized at 4°C.

[0020] Preferred technical solution: The finished product refrigeration tank is a water-cooled refrigeration tank, and the finished product refrigeration tank is provided with an ice water inlet and an ice water outlet, so as to stably control the temperature.

[0021] Preferred technical solution: the raw material input pipeline is connected to the acid precipitation section.

[0022] Preferred technical solution: The raw material transported by the raw material input pipeline is 20% pea protein material.

[0023] Due to the application of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0024] The utility model discloses a pea protein-based Pickering emulsion preparation system. A high-speed disperser is used for homogenization to obtain a primary emulsion, and the primary emulsion is then circulated through dynamic high-pressure microfluidics to obtain a Pickering emulsion using pea protein as a surfactant. Compared with traditional methods, the emulsion particle size is reduced, the aggregation between emulsions is reduced, and the stability of the obtained emulsion is improved. At the same time, the mixing of raw materials is automatically controlled by a flow control device and a pH control device, thereby improving the preparation efficiency and quality stability of the Pickering emulsion. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic structural diagram of a pea protein-based Pickering emulsion preparation system of the utility model;

[0027] Figure 2 This is a schematic structural diagram of the flow control device in the present utility model;

[0028] Figure 3 It is a structural diagram of the pH control device in the present utility model.

[0029] In the above drawings, 1. oil tank; 11. oil output pipeline; 12. first delivery pump; 13. flow control device; 13a. flow meter; 13b. first control valve; 13c. first controller; 2. acid tank; 21. acid output pipeline; 22. second delivery pump; 23. pH control device; 23a. second control valve; 23b. pH meter; 23c. second controller; 3. dissolution tank; 31. raw material input pipeline; 32. dissolution liquid delivery pipeline; 33. third delivery pump; 4. oil-water premix tank; 41. mixed liquid delivery pipeline; 42. fourth delivery pump; 5. high-speed disperser; 51. colostrum output pipeline; 52. fifth delivery pump; 6. dynamic high-pressure microfluidizer; 7. finished product refrigeration tank; 71. ice water inlet; 72. ice water outlet. DETAILED DESCRIPTION

[0030] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application are described here. In addition, the terms "including" and "having" and their synonyms are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0033] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0034] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," "sleeved," and "fitted" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or internal communication between two devices, elements, or components. For another example, "fitted" can mean complete or partial contact. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] Example:

[0037] like Figure 1 As shown, the present invention discloses a Pickering emulsion preparation system based on pea protein, including an oil tank 1, an acid tank 2, a dissolution tank 3, an oil-water premixing tank 4, a high-speed disperser 5, a dynamic high-pressure microfluidizer 6 and a finished product refrigeration tank 7. The main components of the present invention are described in detail below:

[0038] like Figure 1 As shown, an oil output pipeline 11 is provided at the lower end of the oil tank 1.

[0039] like Figure 1 As shown, an acid liquid output pipeline 21 is provided at the lower end of the acid tank 2.

[0040] like Figure 1 As shown, the upper end of the dissolving tank 3 is provided with two feed ports connected to the raw material input pipeline 31 and the acid solution output pipeline 21 respectively; the lower end of the dissolving tank 3 is provided with a dissolving solution delivery pipeline 32.

[0041] like Figure 1 As shown, the upper end of the oil-water premixing tank 4 is provided with two feed ports connected to the oil output pipeline 11 and the dissolving liquid delivery pipeline 32 respectively, and the lower end of the oil-water premixing tank 4 is provided with a mixed liquid delivery pipeline 41.

[0042] like Figure 1 As shown, the input end of the high-speed disperser 5 is connected to the mixed liquid delivery pipeline 41 , and the output end of the high-speed disperser 5 is provided with a primary emulsion output pipeline 51 .

[0043] like Figure 1 As shown, the input end of the dynamic high-pressure microfluidic device 6 is communicated with the primary emulsion output pipeline 51 , and the output end of the dynamic high-pressure microfluidic device 6 is connected to the finished product refrigeration tank 7 .

[0044] refer to Figure 1 、 Figure 2 and Figure 3 As shown, the use method and principle of the utility model are as follows: when in use, 20% pea protein material from the acid precipitation section is transported to the dissolution tank 3 through the raw material input pipeline 31, and at the same time, the acid tank 2 transports the acid liquid to the dissolution tank 3 through the acid liquid output pipeline 21 to stir and dissolve with the 20% pea protein material, and the obtained dissolved liquid is transported to the oil-water premixing tank 4 through the dissolved liquid delivery pipeline 32. At the same time, the oil tank 1 delivers a corresponding amount of oil to the oil-water premixing tank 4 according to a preset oil-water ratio through the oil material output pipeline 11, and then the oil-water mixture formed by the dissolved liquid and the oil is transported to the high-speed disperser 5 through the mixed liquid delivery pipeline 41. The high-speed disperser 5 performs dispersion operation 2 at a speed of 10,000 r / min. min to obtain a colostrum; the colostrum is transported via colostrum output line 51 to dynamic high-pressure microfluidizer 6. After five cycles of dynamic high-pressure microfluidizer treatment, a Pickering emulsion containing pea protein as a surfactant is obtained. The Pickering emulsion is then transported to a finished product refrigerated tank 7 for storage at 4°C to maintain the stability of the Pickering emulsion. It should be noted that in this patent, the speed of high-speed disperser 5 is 10,000 r / min, but in other embodiments, the speed of high-speed disperser 5 may be greater than 10,000 r / min.

[0045] like Figure 1 As shown, in order to ensure the stability of material transportation in the Pickering emulsion preparation system, a first delivery pump 12 is provided on the oil output pipeline 11; a second delivery pump 22 is provided on the acid output pipeline 21; the first delivery pump 12 and the second delivery pump 22 are centrifugal pumps; a third delivery pump 33 is provided on the solution delivery pipeline 32; a fourth delivery pump 42 is provided on the mixed liquid delivery pipeline 41; a fifth delivery pump 52 is provided on the primary emulsion output pipeline 51; the third delivery pump 33, the fourth delivery pump 42 and the fifth delivery pump 52 are rotor pumps.

[0046] like Figure 1 、 Figure 2 and Figure 3As shown, in order to realize automatic control of the oil and acid delivery amounts, a flow control device 13 is further provided on the oil output pipeline 11; a pH control device 23 is further provided on the acid output pipeline 21; the flow control device 13 includes a flow meter 13a and a first control valve 13b arranged on the oil output pipeline 11, the flow meter 13a and the first control valve 13b are connected via a first controller 13c, and the first controller 13c performs real-time automatic control of the first control valve 13b through data feedback from the flow meter 13a; the pH control device 23 includes a second control valve 23a arranged on the acid output pipeline 21 and a pH meter 23b arranged in the dissolving tank 3, the second control valve 23a and the pH meter 23b are connected via a second controller 23c, and the second controller 23c performs real-time automatic control of the second control valve 23a through data feedback from the pH meter 23b.

[0047] like Figure 1 As shown, in order to ensure stable temperature control of the finished product refrigerated tank 7, the finished product refrigerated tank 7 is a water-cooled refrigerated tank. The finished product refrigerated tank 7 is provided with an ice water inlet 71 and an ice water outlet 72, and the ice water is used to ensure the temperature balance in the finished product refrigerated tank 7.

[0048] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A Pickering emulsion preparation system based on pea protein, characterized in that: include: An oil tank (1), wherein an oil output pipeline (11) is provided at the lower end of the oil tank (1); An acid tank (2), wherein an acid liquid output pipeline (21) is provided at the lower end of the acid tank (2); A dissolving tank (3), wherein the upper end of the dissolving tank (3) is provided with two feed ports respectively connected to the raw material input pipeline (31) and the acid solution output pipeline (21); and the lower end of the dissolving tank (3) is provided with a dissolving solution delivery pipeline (32); An oil-water premixing tank (4), wherein the upper end of the oil-water premixing tank (4) is provided with two feed ports respectively connected to the oil output pipeline (11) and the dissolving liquid delivery pipeline (32), and the lower end of the oil-water premixing tank (4) is provided with a mixed liquid delivery pipeline (41); A high-speed disperser (5), wherein the input end of the high-speed disperser (5) is connected to the mixed liquid delivery pipeline (41), and the output end of the high-speed disperser (5) is provided with a primary emulsion output pipeline (51); A dynamic high-pressure microfluidic device (6), wherein the input end of the dynamic high-pressure microfluidic device (6) is connected to the primary emulsion output pipeline (51), and the output end of the dynamic high-pressure microfluidic device (6) is connected to the finished product refrigeration tank (7).

2. A pea protein-based Pickering emulsion preparation system according to claim 1, characterized in that: A first delivery pump (12) is provided on the oil output pipeline (11); a second delivery pump (22) is provided on the acid output pipeline (21); the first delivery pump (12) and the second delivery pump (22) are centrifugal pumps.

3. A pea protein-based Pickering emulsion preparation system according to claim 2, characterized in that: The oil output pipeline (11) is further provided with a flow control device (13); the acid output pipeline (21) is further provided with a pH control device (23).

4. A pea protein-based Pickering emulsion preparation system according to claim 3, characterized in that: The flow control device (13) comprises a flow meter (13a) and a first control valve (13b) arranged on the oil output pipeline (11), and the flow meter (13a) and the first control valve (13b) are connected via a first controller (13c); the pH control device (23) comprises a second control valve (23a) arranged on the acid output pipeline (21) and a pH meter (23b) arranged in the dissolving tank (3), and the second control valve (23a) and the pH meter (23b) are connected via a second controller (23c).

5. The pea protein-based Pickering emulsion preparation system according to claim 1, characterized in that: A third delivery pump (33) is provided on the dissolving liquid delivery pipeline (32); a fourth delivery pump (42) is provided on the mixed liquid delivery pipeline (41); and a fifth delivery pump (52) is provided on the colostrum liquid output pipeline (51); the third delivery pump (33), the fourth delivery pump (42) and the fifth delivery pump (52) are rotor pumps.

6. The pea protein-based Pickering emulsion preparation system according to claim 1, characterized in that: The rotation speed of the high-speed disperser (5) is ≥10000 r / min.

7. The pea protein-based Pickering emulsion preparation system according to claim 1, characterized in that: The refrigeration temperature of the finished product refrigeration tank (7) can be stabilized at 4°C.

8. The pea protein-based Pickering emulsion preparation system according to claim 7, characterized in that: The finished product refrigeration tank (7) is a water-cooled refrigeration tank, and an ice water inlet (71) and an ice water outlet (72) are provided on the finished product refrigeration tank (7).

9. The pea protein-based Pickering emulsion preparation system according to claim 1, characterized in that: The raw material input pipeline (31) is connected to the acid precipitation section.

10. The pea protein-based Pickering emulsion preparation system according to claim 9, characterized in that: The raw material transported by the raw material input pipeline (31) is a 20% pea protein solution.

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