Low-temperature extraction and antioxidation device for lutein
By using a low-temperature extraction and anti-oxidation device, and employing a cooling jacket and an inert gas injection mechanism, the oxidation problem of lutein caused by temperature and oxygen during the extraction process was solved, achieving a highly efficient and stable extraction process and improving the quality and production efficiency of lutein.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YUNONG AGRI GRP CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-07
AI Technical Summary
In traditional extraction devices, improper temperature control or excessive oxygen exposure during the extraction process can lead to lutein oxidation, affecting its quality and activity.
A low-temperature extraction and anti-oxidation device is used, which controls the temperature through a cooling jacket and cooling mechanism, and forms an inert gas environment by combining an inert gas injection mechanism to isolate oxygen and prevent oxidation reaction.
It effectively prevents lutein oxidation, improves extraction efficiency and purity, shortens extraction time, reduces operating costs, and enhances operational convenience and production efficiency.
Smart Images

Figure CN224462296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-temperature extraction technology, and in particular to a low-temperature extraction and anti-oxidation device for lutein. Background Technology
[0002] Lutein extraction refers to the process of separating and purifying lutein components from plant raw materials. Lutein is a natural carotenoid with bioactivities such as anti-oxidation, vision protection, and prevention of cardiovascular diseases. It is widely used in food, health products, medicine, and cosmetics.
[0003] Lutein is a heat-sensitive substance, which is afraid of light and heat and is easily oxidized and deteriorated. In the extraction process, traditional extraction devices may cause lutein to oxidize due to improper temperature control or excessive oxygen contact, thus affecting its quality and activity.
[0004] Therefore, it is necessary to provide a low-temperature extraction and anti-oxidation device for lutein to solve the above-mentioned technical problems. Utility Model Content
[0005] To address the technical problem that traditional extraction devices easily lead to lutein oxidation during the extraction process due to improper temperature control or excessive oxygen contact, this invention provides a low-temperature lutein extraction anti-oxidation device.
[0006] The lutein low-temperature extraction and anti-oxidation device provided by this utility model includes: an extraction chamber with a feed inlet at the top and a sealing cap on the feed inlet; a cooling jacket fixedly fitted outside the extraction chamber and having a cooling cavity; a cooling mechanism disposed on the cooling jacket for cooling during extraction; and a gas injection mechanism disposed on the cooling jacket for injecting inert gas into the extraction chamber before extraction.
[0007] Preferably, the cooling mechanism includes a coil, a heat sink, a circulating pump, a connecting pipe, a three-way solenoid valve, a supply pipe, and an injection pipe. The coil is fixedly installed on one side of the cooling jacket, and its inlet end extends into the cooling chamber. The heat sink is sleeved on the coil. The circulating pump is fixedly installed on one side of the cooling jacket. The connecting pipe is fixedly connected to the inlet end of the circulating pump. The three-way solenoid valve is fixedly connected to the inlet end of the connecting pipe, and its inlet end is connected to the outlet end of the coil. The supply pipe is fixedly connected to the inlet end of the three-way solenoid valve and is used to connect to a coolant storage device. The injection pipe is fixedly connected to the outlet end of the circulating pump, and its outlet end extends into the cooling chamber.
[0008] Preferably, the gas injection mechanism includes an inert gas storage tank, a gas supply pump, an inlet pipe, and an outlet pipe. The inert gas storage tank is located on one side of the cooling jacket. The gas supply pump is fixedly installed on the inert gas storage tank. The inlet pipe is fixedly connected to the inlet end of the inert gas storage tank. The outlet pipe is fixedly connected to the outlet end of the inert gas storage tank. The outlet end of the outlet pipe extends into the extraction chamber.
[0009] Preferably, the bottom of the extraction box is fixedly connected to a discharge pipe, and the discharge pipe is equipped with a discharge valve.
[0010] Preferably, a mounting frame is fixedly installed on one side of the cooling sleeve, and a cooling fan is fixedly installed inside the mounting frame, the cooling fan corresponding to the serpentine tube.
[0011] Preferably, the sealing cover is equipped with a pressure gauge for adjusting the pressure inside the extraction chamber.
[0012] Preferably, an exhaust pipe is fixedly connected to the sealing cover, and a one-way valve is provided on the exhaust pipe.
[0013] Compared with related technologies, the lutein low-temperature extraction and anti-oxidation device provided by this utility model has the following beneficial effects:
[0014] This invention provides a low-temperature extraction and anti-oxidation device for lutein:
[0015] 1. The cooling jacket is fixed outside the extraction tank. The cooling mechanism cools the extraction tank through the cooling chamber, which can control the temperature during the extraction process and prevent the lutein from being oxidized and decomposed due to excessive temperature. This ensures the stability and reliability of the extraction process. The suitable low temperature environment and low oxygen conditions not only help prevent lutein oxidation, but also improve the solubility of lutein in the extraction solvent, promote the extraction reaction, thereby improving the extraction efficiency of lutein and shortening the extraction time. Through the circulation system consisting of a circulation pump, connecting pipe, three-way solenoid valve and liquid injection pipe, the coolant can circulate between the cooling chamber and the coil, realizing the recycling of coolant, reducing coolant consumption and lowering operating costs.
[0016] 2. By injecting inert gas into the extraction chamber through the air supply pump, the air inside the chamber can be quickly discharged to form an inert gas environment, effectively isolating oxygen and preventing lutein from oxidizing during the extraction process. This ensures the extraction quality and purity of lutein. The discharge process can be controlled by opening and closing the discharge valve, which improves the convenience of operation.
[0017] 3. By accelerating airflow, the cooling fan shortens the cooling time of the coolant, allowing it to circulate more quickly and improving the overall efficiency of the cooling system. This helps to shorten the extraction time of lutein and increase production efficiency. The pressure gauge allows operators to monitor the pressure changes inside the extraction chamber in real time, ensuring that the extraction process is carried out within a safe pressure range. Excess gas can be discharged through the exhaust pipe, and the one-way valve effectively isolates oxygen, preventing lutein from contacting oxygen and undergoing oxidation during the extraction process, thus ensuring the extraction quality and purity of lutein. Attached Figure Description
[0018] Figure 1 A front view schematic diagram of a preferred embodiment of the lutein low-temperature extraction and anti-oxidation device provided by this utility model;
[0019] Figure 2 A schematic diagram of the main cross-sectional structure of a preferred embodiment of the lutein low-temperature extraction and anti-oxidation device provided by this utility model;
[0020] Figure 3 This is a rear view schematic diagram of the cooling jacket in this utility model;
[0021] Figure 4 for Figure 3 The diagram shows an enlarged view of part A.
[0022] Labels in the diagram: 1. Extraction tank; 2. Feed inlet; 3. Sealing cap; 4. Cooling jacket; 5. Cooling chamber; 6. Coil; 7. Heat sink; 8. Circulation pump; 9. Connecting pipe; 10. Three-way solenoid valve; 11. Liquid supply pipe; 12. Liquid injection pipe; 13. Inert gas storage tank; 14. Gas supply pump; 15. Gas inlet pipe; 16. Gas outlet pipe; 17. Discharge pipe; 18. Discharge valve; 19. Mounting frame; 20. Cooling fan; 21. Pressure gauge; 22. Exhaust pipe. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Please refer to the following: Figures 1-3 ,in, Figure 1 A front view schematic diagram of a preferred embodiment of the lutein low-temperature extraction and anti-oxidation device provided by this utility model; Figure 2 A schematic diagram of the main cross-sectional structure of a preferred embodiment of the lutein low-temperature extraction and anti-oxidation device provided by this utility model; Figure 3 This is a rear view schematic diagram of the cooling jacket in this utility model; Figure 4 for Figure 3 The diagram shows an enlarged view of part A.
[0025] The lutein low-temperature extraction and anti-oxidation device includes: an extraction chamber 1 with a feed inlet 2 at the top and a sealing cap 3 on the feed inlet 2; a cooling jacket 4 fixedly fitted outside the extraction chamber 1 and having a cooling chamber 5; a cooling mechanism mounted on the cooling jacket 4 for cooling during extraction; and a gas injection mechanism mounted on the cooling jacket 4 for injecting inert gas into the extraction chamber 1 before extraction. The cooling mechanism, fixedly fitted outside the extraction chamber 1 by the cooling jacket 4 and cooling the extraction chamber 1 through the cooling chamber 5, controls the temperature during extraction, preventing lutein oxidation and decomposition due to excessive temperature, thus ensuring the stability and reliability of the extraction process. A suitable low-temperature environment and low-oxygen conditions not only help prevent lutein oxidation but also increase the solubility of lutein in the extraction solvent, promoting the extraction reaction and thereby improving the extraction efficiency and shortening the extraction time.
[0026] The cooling mechanism includes a coiled tube 6, a heat sink 7, a circulating pump 8, a connecting pipe 9, a three-way solenoid valve 10, a liquid supply pipe 11, and a liquid injection pipe 12. The coiled tube 6 is fixedly installed on one side of the cooling sleeve 4, and its inlet end extends into the cooling chamber 5. The heat sink 7 is sleeved on the coiled tube 6. The circulating pump 8 is fixedly installed on one side of the cooling sleeve 4. The connecting pipe 9 is fixedly connected to the inlet end of the circulating pump 8. The three-way solenoid valve 10 is fixedly connected to the inlet end of the connecting pipe 9. The inlet end of the three-way solenoid valve 10 is connected to the... The discharge end of the coil 6 is connected to the coil 6, and the liquid supply pipe 11 is fixedly connected to the inlet end of the three-way solenoid valve 10. The liquid supply pipe 11 is used to connect to the coolant storage device. The liquid injection pipe 12 is fixedly connected to the discharge end of the circulation pump 8. The discharge end of the liquid injection pipe 12 extends into the cooling chamber 5. Through the circulation system composed of the circulation pump 8, the connecting pipe 9, the three-way solenoid valve 10 and the liquid injection pipe 12, the coolant can circulate between the cooling chamber 5 and the coil 6, realizing the recycling of coolant, reducing coolant consumption and lowering operating costs.
[0027] The gas injection mechanism includes an inert gas storage tank 13, a gas supply pump 14, an inlet pipe 15, and an outlet pipe 16. The inert gas storage tank 13 is located on one side of the cooling jacket 4. The gas supply pump 14 is fixedly installed on the inert gas storage tank 13. The inlet pipe 15 is fixedly connected to the inlet end of the inert gas storage tank 13. The outlet pipe 16 is fixedly connected to the outlet end of the inert gas storage tank 13. The outlet end of the outlet pipe 16 extends into the extraction chamber 1. The inert gas is injected into the extraction chamber 1 by the gas supply pump 14, which can quickly expel the air in the chamber, forming an inert gas environment, effectively isolating oxygen, and preventing lutein from contacting oxygen and undergoing oxidation during the extraction process, thereby ensuring the extraction quality and purity of lutein.
[0028] The bottom of the extraction box 1 is fixedly connected to a discharge pipe 17, and a discharge valve 18 is provided on the discharge pipe 17. By opening and closing the discharge valve 18, the discharge process can be controlled, which improves the convenience of operation.
[0029] A mounting frame 19 is fixedly installed on one side of the cooling jacket 4. A cooling fan 20 is fixedly installed inside the mounting frame 19. The cooling fan 20 corresponds to the serpentine tube 6. By accelerating the airflow, the cooling fan 20 shortens the cooling time of the coolant, allowing the coolant to circulate more quickly, improving the overall efficiency of the cooling system, and helping to shorten the extraction time of lutein and improve production efficiency.
[0030] The sealing cover 3 is equipped with a pressure gauge 21 for adjusting the pressure inside the extraction chamber 1. The pressure gauge 21 allows the operator to monitor the pressure changes inside the extraction chamber 1 in real time, ensuring that the extraction process is carried out within a safe pressure range.
[0031] An exhaust pipe 22 is fixedly connected to the sealing cap 3. The exhaust pipe 22 is equipped with a one-way valve, through which excess gas can be discharged. The one-way valve effectively isolates oxygen, preventing lutein from contacting oxygen during the extraction process and undergoing an oxidation reaction, thereby ensuring the extraction quality and purity of lutein.
[0032] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.
[0033] The working principle of the lutein low-temperature extraction and anti-oxidation device provided by this utility model is as follows:
[0034] Before extraction, open the sealing cover 3 on the feed inlet 2 at the top of the extraction chamber 1, and add the raw material containing lutein and the extraction solvent into the extraction chamber 1 through the feed inlet 2. After feeding, close the sealing cover 3 again to ensure that the feed inlet 2 is sealed. Prepare to inject inert gas into the extraction chamber 1. Turn on the gas supply pump 14. The gas supply pump 14 starts working and draws inert gas from the inert gas storage tank 13. Under the action of the gas supply pump 14, the inert gas enters the extraction chamber 1 through the gas outlet pipe 16. As the inert gas is continuously injected, the air (containing oxygen) in the extraction chamber 1 is gradually discharged from the exhaust pipe 22. The injection status of inert gas can be judged by observing the pressure gauge 21 on the extraction chamber 1. When the required inert gas environment is reached in the extraction chamber 1 (such as the oxygen content is reduced to a certain level), turn off the gas supply pump 14 and stop the injection of inert gas.
[0035] During extraction, connect the supply pipe 11 to the external coolant storage device, activate the three-way solenoid valve 10 to connect the supply pipe 11 and the connecting pipe 9, and simultaneously close the connection with the discharge end of the coil 6. Start the circulation pump 8. Coolant enters the three-way solenoid valve 10 from the coolant storage device through the supply pipe 11, then enters the circulation pump 8 through the connecting pipe 9, and is then injected into the cooling chamber 5 through the injection pipe 12 until the cooling chamber 5 is filled with a suitable amount of coolant, completing the initial injection operation. When the extraction tank 1 begins the lutein extraction operation and cooling is required, adjust the three-way solenoid valve 10 to connect the discharge end of the coil 6 and the connecting pipe 9, and simultaneously close the supply pipe 11. With the liquid pipe 11 connected, the circulation pump 8 continues to work, drawing out the coolant from the cooling chamber 5 and entering the coil 6 through the connecting pipe 9 and the three-way solenoid valve 10. As the coolant flows in the coil 6, it dissipates heat through the heat dissipation plate 7 mounted on the coil 6, achieving cooling. After cooling, the coolant flows out from the discharge end of the coil 6 and re-enters the circulation pump 8. Then, it is reinjected into the cooling chamber 5 through the liquid injection pipe 12, forming a circulating cooling system to continuously cool the extraction tank 1. When the lutein extraction operation is completed and cooling is no longer required, the circulation pump 8 is turned off, and the state of the three-way solenoid valve 10 is adjusted according to the actual situation to shut down the cooling system.
[0036] When the extraction chamber 1 begins the extraction operation and the cooling mechanism begins circulating cooling, the cooling fan 20 is started simultaneously. The cooling fan 20 starts running and generates directional airflow. The airflow generated by the cooling fan 20 blows directly towards the position corresponding to the coil 6. The coolant flowing in the coil 6 dissipates heat into the surrounding air through the heat sink 7. The cooling fan 20 accelerates the airflow and quickly carries away the hot air, further enhancing the heat dissipation effect of the coil 6 and the heat sink 7, allowing the coolant to lower the temperature more quickly, thereby cooling the extraction chamber 1 more effectively.
[0037] After the lutein extraction operation is completed, the operator opens the discharge valve 18 on the discharge pipe 17. After the discharge valve 18 is opened, the extract in the extraction tank 1 begins to flow out through the discharge pipe 17 under its own gravity or internal pressure (if any). A suitable collection container is placed below the outlet of the discharge pipe 17 to collect the extract discharged from the extraction tank 1.
[0038] Compared with related technologies, the lutein low-temperature extraction and anti-oxidation device provided by this utility model has the following beneficial effects:
[0039] This invention provides a low-temperature extraction and anti-oxidation device for lutein. A cooling jacket 4 is fixedly fitted around the extraction chamber 1. A cooling mechanism, through a cooling chamber 5, lowers the temperature of the extraction chamber 1, controlling the temperature during extraction and preventing lutein oxidation and decomposition due to excessive temperature. This ensures the stability and reliability of the extraction process. The suitable low-temperature environment and low-oxygen conditions not only help prevent lutein oxidation but also increase the solubility of lutein in the extraction solvent, promoting the extraction reaction and thus improving extraction efficiency and shortening extraction time. A circulation system consisting of a circulating pump 8, a connecting pipe 9, a three-way solenoid valve 10, and a liquid injection pipe 12 allows the coolant to circulate between the cooling chamber 5 and the coil 6, achieving coolant recycling, reducing coolant consumption, and lowering operating costs. An inert gas supply pump 14 injects inert gas into the extraction chamber 1, quickly purifying the air inside the chamber. The exhaust system creates an inert gas environment, effectively isolating oxygen and preventing lutein from oxidizing during extraction. This ensures the extraction quality and purity of lutein. Opening and closing the discharge valve 18 allows for control of the discharge process, improving operational convenience. Accelerated airflow and the cooling fan 20 shorten the cooling time of the coolant, enabling faster circulation and improving the overall efficiency of the cooling system. This helps shorten the lutein extraction time and increase production efficiency. The pressure gauge 21 allows operators to monitor pressure changes within the extraction chamber 1 in real time, ensuring the extraction process is conducted within a safe pressure range. Excess gas is discharged through the exhaust pipe 22, and the one-way valve effectively isolates oxygen, preventing lutein from oxidizing during extraction and ensuring the extraction quality and purity of lutein.
[0040] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art who understand the principle of the above utility model can clearly understand the specific details of its power mechanism, power supply system and control system.
[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A low-temperature extraction and anti-oxidation device for lutein, characterized in that, include: An extraction chamber, wherein the top of the extraction chamber is provided with a feed inlet and the feed inlet is provided with a sealing cover; A cooling jacket is fixedly fitted outside the extraction tank, and a cooling cavity is provided on the cooling jacket; A cooling mechanism, which is mounted on the cooling jacket, is used to cool the material during extraction. A gas injection mechanism, which is located on the cooling jacket, is used to inject inert gas into the extraction chamber before extraction.
2. The lutein low-temperature extraction and anti-oxidation device according to claim 1, characterized in that, The cooling mechanism includes a coil, a heat sink, a circulating pump, a connecting pipe, a three-way solenoid valve, a supply pipe, and an injection pipe. The coil is fixedly installed on one side of the cooling jacket, with its inlet end extending into the cooling chamber. The heat sink is sleeved on the coil. The circulating pump is fixedly installed on one side of the cooling jacket. The connecting pipe is fixedly connected to the inlet end of the circulating pump. The three-way solenoid valve is fixedly connected to the inlet end of the connecting pipe, with its inlet end connected to the outlet end of the coil. The supply pipe is fixedly connected to the inlet end of the three-way solenoid valve and is used to connect to a coolant storage device. The injection pipe is fixedly connected to the outlet end of the circulating pump, with its outlet end extending into the cooling chamber.
3. The lutein low-temperature extraction and anti-oxidation device according to claim 1, characterized in that, The gas injection mechanism includes an inert gas storage tank, a gas supply pump, an inlet pipe, and an outlet pipe. The inert gas storage tank is located on one side of the cooling jacket. The gas supply pump is fixedly installed on the inert gas storage tank. The inlet pipe is fixedly connected to the inlet end of the inert gas storage tank. The outlet pipe is fixedly connected to the outlet end of the inert gas storage tank. The outlet end of the outlet pipe extends into the extraction chamber.
4. The lutein low-temperature extraction and anti-oxidation device according to claim 1, characterized in that, The bottom of the extraction box is fixedly connected to a discharge pipe, and a discharge valve is provided on the discharge pipe.
5. The lutein low-temperature extraction and anti-oxidation device according to claim 2, characterized in that, A mounting frame is fixedly installed on one side of the cooling sleeve, and a cooling fan is fixedly installed inside the mounting frame. The cooling fan corresponds to the serpentine tube.
6. The lutein low-temperature extraction and anti-oxidation device according to claim 1, characterized in that, The sealing cap is equipped with a pressure gauge for adjusting the pressure inside the extraction chamber.
7. The lutein low-temperature extraction and anti-oxidation device according to claim 1, characterized in that, An exhaust pipe is fixedly connected to the sealing cover, and a one-way valve is provided on the exhaust pipe.