A high-efficiency light-proof extraction device for rapeseed flower polyphenol flavonoids and anthocyanins

Abstract

The utility model discloses a kind of for rape flower polyphenol flavonoid and anthocyanin High-efficient light-avoiding extraction device, including light-avoiding jar body and jar cover, light-avoiding jar body is double-layer structure, inner layer is stainless steel, outer layer is dark color corrosion-resistant transmission rate extremely low glass steel material quality, and clamping layer is provided with jacket, and medium inlet and medium outlet are respectively provided in the upper and lower sides of jacket.In the utility model, light is fundamentally isolated by setting the light-avoiding jar body of double-layer structure, nitrogen or argon is introduced by setting inert gas inlet on jar cover, and combined with exhaust port, air in jar can be replaced before extraction, and inert gas environment of micro-positive pressure is maintained during the whole extraction process, oxidation is effectively prevented, ultrasonic transducer is integrated in jar body bottom or side wall, and works cooperatively with mechanical stirring assembly, ultrasonic cavitation effect can efficiently break plant cell wall, significantly improve extraction efficiency, and allow extraction at lower temperature.

Description

Technical Field

[0001] This utility model relates to an extraction device, specifically a high-efficiency light-shielding extraction device for rapeseed flower polyphenol flavonoids and anthocyanins, belonging to the technical field of extraction devices. Background Technology

[0002] Rapeseed is an important economic crop widely cultivated in my country. It is not only a high-quality source of oil, but its flowers are also a valuable resource rich in a variety of high-value bioactive components. In recent years, with the deepening of people's research on the functionality of natural products, active substances such as polyphenols, flavonoids and anthocyanins extracted from rapeseed flowers have attracted much attention due to their excellent health effects such as anti-oxidation, anti-inflammation, anti-cancer and prevention of cardiovascular and cerebrovascular diseases. They have shown great application potential in the fields of food, health products, cosmetics and medicine.

[0003] However, these active ingredients, especially anthocyanins and some polyphenols, are highly sensitive to processing. Their chemical structures are unstable and they are easily affected by factors such as light, temperature, oxygen and pH during processing and extraction, resulting in degradation, oxidation and isomerization, leading to loss of activity, reduced yield and deterioration of product color. This makes the efficient and high-quality extraction of these active ingredients from rapeseed flowers a major technical challenge.

[0004] However, current extraction devices still have certain problems. For example, in the purification method for total flavonoids from rapeseed disclosed in publication number CN110101733A, although it is applicable to rapeseed from various origins and specific varieties, conventional extraction tanks or reaction vessels are commonly used in this method and most current technical solutions when extracting active ingredients such as flavonoids and anthocyanins from rapeseed. These devices mainly have the following defects:

[0005] (1) Poor light protection: Anthocyanins and some polyflavonoids are extremely sensitive to light. They are easily decomposed and inactivated when exposed to light during the extraction process, resulting in reduced extract activity, decreased yield, and darkening of color, which seriously affects product quality.

[0006] (2) Insufficient antioxidant protection: The extraction process is usually exposed to air, where oxygen oxidizes the target components, resulting in the loss of active ingredients.

[0007] (3) Limited functionality: Unit operations such as extraction, stirring, temperature control, and solvent recovery are often completed by multiple independent devices, which is cumbersome. It is difficult to avoid contact with light and oxygen during the transfer process, and the efficiency is low.

[0008] (4) Inconvenient cleaning and observation: To avoid light, the equipment is often a fully enclosed structure, making it impossible to observe the internal extraction status. In addition, there are many dead corners inside the tank, making it difficult to clean thoroughly and easily causing batch-to-batch contamination. Utility Model Content

[0009] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to solve the aforementioned shortcomings of existing technologies by proposing a highly efficient light-shielded extraction device for rapeseed polyphenols, flavonoids, and anthocyanins.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A highly efficient light-shielding extraction device for rapeseed polyphenols, flavonoids and anthocyanins includes a light-shielding tank and a tank cover. The light-shielding tank has a double-layer structure, with an inner layer of stainless steel and an outer layer of dark-colored, corrosion-resistant fiberglass with extremely low light transmittance. A jacket is provided in the interlayer, and a medium inlet and a medium outlet are respectively provided on the upper and lower sides of the jacket.

[0012] The lid is connected to the top of the light-proof container. The lid is equipped with a mechanical stirring assembly, an online monitoring system, and a cleaning assembly. The bottom of the light-proof container is equipped with an ultrasonic assembly, which includes an ultrasonic generator and an ultrasonic transducer. The ultrasonic generator is located on the outer wall of the light-proof container, and multiple ultrasonic transducers are located at equal intervals at the bottom of the light-proof container. The multiple ultrasonic transducers are electrically connected to the ultrasonic generator via cables.

[0013] The can lid is also provided with an inert gas inlet and an exhaust port, both of which are connected to the internal cavity of the light-proof can body. The exhaust port is also provided with a regulating valve.

[0014] As a further embodiment of this utility model: the mechanical stirring assembly includes a motor, a mechanical seal, a stirring shaft, and a paddle. The motor is fixed at the top center of the tank cover, the mechanical seal is installed on the tank cover, one end of the stirring shaft is coaxially fixed with the output shaft of the motor, and the other end passes through the mechanical seal and is located in the internal cavity of the light-proof tank. The paddle is fixed on the outer wall of the stirring shaft and is located inside the light-proof tank.

[0015] As a further embodiment of this utility model: the online monitoring system includes a light-shielding sight glass, an LED light, and a high-definition camera. The light-shielding sight glass is embedded in the can lid, and an LED light and a high-definition camera are provided on one side of the light-shielding sight glass, both located inside the light-shielding can.

[0016] As a further improvement of this utility model, a pH / temperature sensor interface is provided through the can lid.

[0017] As a further improvement of this utility model: a cleaning port is provided through the can lid, and a rotating cleaning ball is rotatably connected to the bottom of the cleaning port, the rotating cleaning ball being located inside the light-proof can.

[0018] As a further improvement of this utility model: the top of the can lid is provided with a feed inlet and a pressure reducing valve, the bottom of the light-proof can body is provided with a discharge outlet, and the pressure reducing valve is also provided with a pressure gauge.

[0019] The beneficial effects of this utility model are:

[0020] This invention fundamentally isolates light by setting up a double-layered light-proof tank. Nitrogen or argon gas is introduced through an inert gas inlet on the tank lid, and combined with an exhaust port, the air inside the tank can be replaced before extraction. A slightly positive pressure inert gas environment is maintained throughout the extraction process to effectively prevent oxidation. An ultrasonic transducer is integrated into the bottom or side wall of the tank and works in conjunction with a mechanical stirring assembly. The ultrasonic cavitation effect can efficiently break down plant cell walls, significantly improving extraction efficiency. Extraction can be carried out at lower temperatures, further protecting heat-sensitive components. Built-in LED lighting and a high-definition camera are used, and the inside of the tank can be observed in real time through a light-proof viewing mirror. A rotating cleaning ball is also integrated for easy in-situ cleaning, balancing light protection and operability.

[0021] The fully enclosed, light-proof design significantly reduces photodegradation of anthocyanins and polyflavonoids during extraction, ensuring the activity and color of the extract, and improving product yield and quality. The inert gas protection system effectively isolates oxygen, preventing the oxidation and deterioration of active ingredients. The synergistic action of ultrasonic and mechanical stirring breaks down the mass transfer barrier of plant cell walls, shortens extraction time, reduces dependence on high temperatures, and achieves efficient, low-temperature extraction, saving energy. The online monitoring system makes the process controllable and visible, improving production efficiency and hygiene standards. Integrating multiple functions into one machine reduces material transfer steps, lowers overall investment and operational complexity, making it ideal for the extraction of high-value-added natural products. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the connection structure of the ultrasonic transducer of this utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the light-shielding tank body of this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure of the light-blocking sight glass of this utility model.

[0026] In the diagram: 1. Light-proof tank body, 2. Tank lid, 3. Ultrasonic generator, 4. Ultrasonic transducer, 5. Motor, 6. Mechanical seal, 7. Stirring shaft, 8. Blade, 9. Jacket, 10. Medium inlet, 11. Medium outlet, 12. Inert gas inlet, 13. Exhaust port, 14. Light-proof sight glass, 15. LED lighting, 16. High-definition camera, 17. pH / temperature sensor interface, 18. Rotating cleaning ball, 19. Cleaning port, 20. Feed inlet, 21. Discharge port, 22. Pressure reducing valve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] like Figures 1 to 4 As shown, a high-efficiency light-shielding extraction device for rapeseed polyphenols, flavonoids and anthocyanins includes a light-shielding tank 1 and a tank cover 2. The light-shielding tank 1 has a double-layer structure, with the inner layer being stainless steel and the outer layer being dark-colored, corrosion-resistant fiberglass with extremely low light transmittance. A jacket 9 is provided in the interlayer, and a medium inlet 10 and a medium outlet 11 are respectively provided on the upper and lower sides of the jacket 9.

[0030] The lid 2 is connected to the top of the light-proof container 1. The lid 2 is equipped with a mechanical stirring assembly, an online monitoring system and a cleaning assembly. The bottom of the light-proof container 1 is equipped with an ultrasonic assembly, which includes an ultrasonic generator 3 and an ultrasonic transducer 4. The ultrasonic generator 3 is located on the outer wall of the light-proof container 1, and the ultrasonic transducer 4 is located at the bottom of the light-proof container 1. Multiple ultrasonic transducers 4 are arranged at equal intervals. The multiple ultrasonic transducers 4 are electrically connected to the ultrasonic generator 3 through cables.

[0031] The can lid 2 is also provided with an inert gas inlet 12 and an exhaust port 13, both of which are connected to the internal cavity of the light-proof can 1. The exhaust port 13 is also provided with a regulating valve. The mechanical stirring assembly includes a motor 5, a mechanical seal 6, a stirring shaft 7 and a paddle 8. The motor 5 is fixed at the top center of the can lid 2. The mechanical seal 6 is provided on the can lid 2. One end of the stirring shaft 7 is coaxially fixed with the output shaft of the motor 5, and the other end passes through the mechanical seal 6 and is located in the internal cavity of the light-proof can 1. The paddle 8 is fixed on the outer wall of the stirring shaft 7 and is located inside the light-proof can 1.

[0032] The online monitoring system includes a light-shielding sight glass 14, an LED light 15, and a high-definition camera 16. The light-shielding sight glass 14 is embedded in the tank lid 2. An LED light 15 and a high-definition camera 16 are provided on one side of the light-shielding sight glass 14, and both are located inside the light-shielding tank body 1. A pH / temperature sensor interface 17 is provided through the tank lid 2.

[0033] A cleaning port 19 is provided through the lid 2, and a rotating cleaning ball 18 is rotatably connected to the bottom of the cleaning port 19. The rotating cleaning ball 18 is located inside the light-proof tank body 1.

[0034] In this invention, a double-layered light-shielding tank 1 is used to fundamentally block light. Nitrogen or argon gas is introduced through an inert gas inlet 12 on the tank lid 2, and combined with an exhaust port 13, the air inside the tank can be replaced before extraction. A slightly positive pressure inert gas environment is maintained throughout the extraction process to effectively prevent oxidation. An ultrasonic transducer 4 is integrated into the bottom or side wall of the tank and works in conjunction with a mechanical stirring assembly. The ultrasonic cavitation effect can efficiently break down plant cell walls, significantly improving extraction efficiency and allowing extraction at lower temperatures to further protect heat-sensitive components. A built-in LED light 15 and a high-definition camera 16 are used, and the inside of the tank can be observed in real time through a light-shielding viewing mirror 14. A rotating cleaning ball 18 is also integrated for easy in-situ cleaning, balancing light protection and operability.

[0035] The fully enclosed, light-proof design significantly reduces photodegradation of anthocyanins and polyflavonoids during extraction, ensuring the activity and color of the extract, and improving product yield and quality. The inert gas protection system effectively isolates oxygen, preventing the oxidation and deterioration of active ingredients. The synergistic action of ultrasonic and mechanical stirring breaks down the mass transfer barrier of plant cell walls, shortens extraction time, reduces dependence on high temperatures, and achieves efficient, low-temperature extraction, saving energy. The online monitoring system makes the process controllable and visible, improving production efficiency and hygiene standards. Integrating multiple functions into one machine reduces material transfer steps, lowers overall investment and operational complexity, making it ideal for the extraction of high-value-added natural products.

[0036] Example 2

[0037] like Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0038] The top of the tank cover 2 is equipped with a feed inlet 20 and a pressure reducing valve 22, and the bottom of the light-proof tank body 1 is equipped with a discharge outlet 21. The pressure reducing valve 22 is also equipped with a pressure gauge. The feed inlet 20 and the discharge outlet 21 enable the rapid addition and discharge of materials, and the pressure reducing valve 22 prevents the internal pressure of the tank from becoming too high.

[0039] Working principle: When using this extraction device, first close the discharge port 21, put rapeseed raw materials and extraction solvent into the feed port 20, close the tank lid 2, introduce nitrogen gas through the inert gas inlet 12, and exhaust air from the exhaust port 13. After purging several times, close the exhaust port to maintain a slight positive pressure. Turn on the temperature control system to circulate the medium in the jacket 9 and heat the material to the set temperature. Start the stirring motor 5 and the ultrasonic generator 3 to carry out synergistic extraction. Observe the internal extraction status through the light-proof sight glass 14 and the camera 16. After the extraction is completed, turn off the ultrasonic and heating, open the discharge port 21, and transport the extract to the next process. Introduce cleaning liquid through the cleaning port 19 and start the rotating cleaning ball 18 to clean the inside of the tank in situ.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A highly efficient light-shielded extraction device for rapeseed polyphenols, flavonoids, and anthocyanins, comprising a light-shielded tank (1) and a tank lid (2), characterized in that, The light-proof tank (1) has a double-layer structure. The inner layer is made of stainless steel, and the outer layer is made of dark-colored, corrosion-resistant fiberglass with extremely low light transmittance. A jacket (9) is provided in the interlayer, and a medium inlet (10) and a medium outlet (11) are provided on the upper and lower sides of the jacket (9), respectively. The lid (2) is connected to the top of the light-proof tank (1). The lid (2) is equipped with a mechanical stirring assembly, an online monitoring system and a cleaning assembly. The bottom of the light-proof tank (1) is equipped with an ultrasonic assembly. The ultrasonic assembly includes an ultrasonic generator (3) and an ultrasonic transducer (4). The ultrasonic generator (3) is located on the outer wall of the light-proof tank (1). The ultrasonic transducer (4) is located at the bottom of the light-proof tank (1) and is arranged in multiple equidistant positions. The multiple ultrasonic transducers (4) are electrically connected to the ultrasonic generator (3) via cables. The can lid (2) is also provided with an inert gas inlet (12) and an exhaust port (13), both of which are connected to the internal cavity of the light-proof can body (1). The exhaust port (13) is also provided with a regulating valve.

2. The high-efficiency light-shielded extraction device for rapeseed polyphenol flavonoids and anthocyanins according to claim 1, characterized in that: The mechanical stirring assembly includes a motor (5), a mechanical seal (6), a stirring shaft (7), and a paddle (8). The motor (5) is fixed at the top center of the tank cover (2). The mechanical seal (6) is installed on the tank cover (2). One end of the stirring shaft (7) is coaxially fixed with the output shaft of the motor (5), and the other end passes through the mechanical seal (6) and is located in the internal cavity of the light-proof tank (1). The paddle (8) is fixed on the outer wall of the stirring shaft (7) and is located inside the light-proof tank (1).

3. The high-efficiency light-shielded extraction device for rapeseed polyphenol flavonoids and anthocyanins according to claim 1, characterized in that: The online monitoring system includes a light-shielding mirror (14), an LED light (15), and a high-definition camera (16). The light-shielding mirror (14) is embedded in the can lid (2). An LED light (15) and a high-definition camera (16) are provided on one side of the light-shielding mirror (14), and both are located inside the light-shielding can body (1).

4. The high-efficiency light-shielded extraction device for rapeseed polyphenol flavonoids and anthocyanins according to claim 1, characterized in that: A pH / temperature sensor interface (17) is provided through the can lid (2).

5. The high-efficiency light-shielded extraction device for rapeseed polyphenol flavonoids and anthocyanins according to claim 1, characterized in that: A cleaning port (19) is provided through the lid (2), and a rotating cleaning ball (18) is rotatably connected to the bottom of the cleaning port (19). The rotating cleaning ball (18) is located inside the light-proof tank (1).

6. The high-efficiency light-shielded extraction device for rapeseed polyphenol flavonoids and anthocyanins according to claim 1, characterized in that: The top of the can lid (2) is provided with a feed inlet (20) and a pressure reducing valve (22), the bottom of the light-proof can body (1) is provided with a discharge outlet (21), and a pressure gauge is also provided on the pressure reducing valve (22).

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