Automatic rotary evaporation device suitable for concentration of antioxidant substances

Abstract

The utility model discloses an automatic rotary evaporation device suitable for concentrating antioxidant substances. The automatic rotary evaporation device comprises a rotary evaporation device main body, a nitrogen blowing system and a vacuum system, nitrogen with inactive chemical properties is injected through the telescopic nitrogen blowing pipe, oxygen in liquid is discharged out of a liquid phase, then the antioxidant active substance is effectively prevented from being oxidized by oxygen in air, the antioxidant activity of the substance can be effectively kept, and it is guaranteed that the product quality of the produced antioxidant active substance is stable. According to the utility model, the characteristic that the solubility of nitrogen in water / organic reagents is far smaller than that of oxygen in the water / organic reagents is utilized, air containing 29% of oxygen is replaced by 100% of nitrogen, the foaming phenomenon of protein / peptide / carbohydrates in the rotary evaporation process can be effectively prevented, and a vacuum degree controller is combined, so that the production efficiency is improved. According to the utility model, the goal of automation can be really realized, and excessive energy of experiment / working personnel is not consumed, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of substance concentration equipment, and more specifically, to a rotary evaporation device which is suitable for concentrating antioxidant active substances and can truly realize automation. Background Art

[0002] The word "antioxidant" stands for "antioxidant free radicals." The human body constantly produces free radicals due to constant exposure to the outside world, including through respiration (oxidation reactions), pollution, and radiation exposure. Scientific research has linked excessive free radical production to cancer, aging, and other diseases. Antioxidant compounds can effectively mitigate these harmful effects, making their development a key research and development area for food and cosmetics companies and a key functional requirement in the market. Therefore, adequate intake of antioxidant compounds can slow the body's degeneration, prevent skin aging, and maintain a youthful appearance.

[0003] However, in actual production, the stronger the antioxidant activity of a substance and the higher the concentration of the antioxidant active substance, the more easily it is affected by oxygen distributed in the air or dissolved in water, causing the activity of the produced antioxidant active substance to decrease, thereby leading to unstable product quality.

[0004] A rotary evaporator, also known as a rotary evaporator, is a widely used evaporation instrument in laboratories. It is primarily used for the continuous distillation of volatile solvents under reduced pressure and is employed in fields such as chemistry, chemical engineering, and biomedicine. However, foaming is an unavoidable phenomenon during the rotary evaporation of proteins, peptides, and carbohydrates. This is due to the inability to release gases from the protein / peptide / carbohydrate solution in a timely manner, resulting in oversaturation of the liquid. Even with vacuum controllers, conventional rotary evaporators still struggled to prevent foaming during the rotary evaporation process. This forced researchers and staff to remain at the evaporator's side, constantly adjusting the vacuum exhaust valve according to the evaporation process to prevent foaming, hindering the goal of truly automating the equipment. Utility Model Content

[0005] The purpose of the utility model is to provide an automated rotary evaporation device suitable for concentrating antioxidant substances, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An automated rotary evaporation device suitable for concentrating antioxidant substances comprises a rotary evaporation device body, a nitrogen blowing system and a vacuum system. The rotary evaporation device body comprises a rotary evaporation water bath (24) and a rotary evaporation bottle (18) disposed on the rotary evaporation water bath (24), wherein the rotary evaporation water bath (24) is disposed on a rotary evaporation device base (28); a rotary evaporation device lifting column (8) is disposed on the rotary evaporation device base (28) and next to the rotary evaporation water bath (24), and a handle for adjusting the rotary evaporation bottle (18) is fixed on the rotary evaporation device lifting column (8);

[0008] The handle port of the rotary evaporation bottle (18) is connected to the glass connecting fitting (6) of the rotary evaporation device, and the glass connecting fitting (6) of the rotary evaporation device is connected to the upper condenser (2) of the rotary evaporation device and the lower condenser (15) of the rotary evaporation device; the upper condenser (2) of the rotary evaporation device is provided with a vacuum exhaust port (1), an upper condenser water outlet (3) and an upper condenser water inlet (4); the lower condenser (15) of the rotary evaporation device is provided with a lower condenser water inlet (14) and a lower condenser water outlet (13); the bottom of the lower condenser (15) of the rotary evaporation device is connected to the solvent recovery bottle (21);

[0009] The nitrogen blowing system comprises a nitrogen blowing connection port (5), a nitrogen blowing control valve (7), a nitrogen blowing pipe telescopic controller (12) and a nitrogen blowing pipe (19). The nitrogen blowing connection port (5) can be connected to an external nitrogen generator or a nitrogen bottle; the nitrogen blowing pipe (19) passes through the glass connecting fitting (6) of the rotary evaporation device and penetrates into the rotary evaporation bottle (18).

[0010] As a further solution of the present invention: the water inlet (14) of the lower condenser tube and the water outlet (3) of the upper condenser tube can be respectively connected to the water outlet and water inlet of the low-temperature cooling circulation pump, and the water outlet (13) of the lower condenser tube and the water inlet (4) of the upper condenser tube are connected by a latex tube, and the condensed liquid enters the lower condenser tube (15) and the upper condenser tube (2) of the rotary evaporation device in sequence from bottom to top, and finally flows back to the low-temperature cooling circulation pump.

[0011] As a further solution of the utility model: the vacuum system includes a vacuum pump (29) with a built-in oxygen monitoring probe and a vacuum controller, a vacuum and oxygen content real-time monitoring panel (30), a vacuum pump exhaust handle (31) and a vacuum pump switch (32). The vacuum pump (29) with a built-in oxygen monitoring probe and a vacuum controller is connected to the vacuum exhaust port (1) on the upper condenser (2) through a connecting air pipe.

[0012] As a further solution of the present invention, an automated rotary evaporator controller panel (22) and a rotary evaporator switch (27) are provided on the front of the lower half of the rotary evaporator lifting column (8).

[0013] As a further solution of the present invention: the automated rotary evaporation device controller panel (22) is connected to the nitrogen blow control valve (7) via the nitrogen blow control electric signal transmission line (11) to control its start and stop; the automated rotary evaporation device controller panel (22) is connected to the nitrogen blow pipe extension controller (12) via the nitrogen blow pipe extension control electric signal transmission line (16) to control the extension and stop of the nitrogen blow pipe (19) in the rotary evaporation bottle (18); the automated rotary evaporation device controller panel (22) is connected to the vacuum pump (29) with the built-in oxygen monitoring probe and vacuum controller via the vacuum pump control electric signal transmission line (26) to control the start and stop of the vacuum pump, and simultaneously monitor the changes in the vacuum degree and oxygen content of the automated rotary evaporation device in real time.

[0014] As a further solution of the present invention: the controller panel (22) of the automatic rotary evaporation device is a touch screen, including a "temperature" column, a "time" column, a "vacuum degree" column, a "speed" column, a "device lifting" menu, a "device resetting" menu, a "device lowering" menu, a "nitrogen blowpipe extension" menu, a "nitrogen blowpipe contraction" menu, a "nitrogen injection" menu, a "nitrogen stop" menu, a "start heating" menu, a "stop heating" menu, a "start rotation" menu, a "stop rotation" menu, a "run" menu, a "stop" menu, a "start vacuum pump controller" menu, a "turn off vacuum pump controller" menu, a "start vacuum pump" menu, a "turn off vacuum pump" menu, a "confirm" menu, a "modify" menu, a series of digital menus (0, 1, 2, 3, 4, 5, 6, 7, 8, 9), and a series of cursor menus (←, ↑, ↓, →).

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model provides a kind of automatic rotary evaporation device suitable for antioxidant concentration, which is different from the conventional patent documents and the common rotary evaporation devices on the market. Before rotary evaporation concentration, the liquid to be concentrated (antioxidant) in the rotary evaporation bottle is first slowly injected with chemically inactive nitrogen by a retractable nitrogen blowpipe, and the oxygen in the liquid is discharged from the liquid phase, and then the air in the rotary evaporation device is gradually discharged from the rotary evaporation device body by a vacuum pump connected to a built-in oxygen monitoring probe and a vacuum controller; when the vacuum degree and oxygen content real-time monitoring panel monitor that there is no oxygen in the rotary evaporation device, and the vacuum degree display reaches one atmospheric pressure, the atmospheric pressure balance inside and outside the rotary evaporation device is achieved, and then the injection of nitrogen is stopped. Such a processing method can effectively avoid the antioxidant active substance being oxidized by oxygen in the air, can effectively maintain the antioxidant activity of the substance, and ensure that the product quality of the antioxidant active substance produced is stable, so the utility model is very suitable for the concentration of antioxidant active substances.

[0017] 2. The present invention provides an automated rotary evaporator suitable for concentrating antioxidant substances. Unlike previous patents and common rotary evaporators on the market, the present invention features a vacuum controller built into the vacuum pump for monitoring and adjusting the vacuum level during sample rotary evaporation. When the vacuum controller detects that the vacuum level of the rotary evaporator is below a set value, it automatically opens a nitrogen purge control valve, introducing nitrogen into the rotary evaporator to restore the vacuum level. This process ensures that the rotary evaporator maintains a stable low vacuum level during sample rotary evaporation and concentration, facilitating sample rotary evaporation and concentration.

[0018] 3. The present invention provides an automated rotary evaporation device suitable for concentrating antioxidant substances. Utilizing the characteristic that the solubility of nitrogen in water / organic reagents is much lower than that of oxygen in water / organic reagents, 100% nitrogen replaces air containing 29% oxygen, effectively preventing the occurrence of foaming of proteins / peptides / sugars during the rotary evaporation process. It should be noted that even with vacuum controllers installed in previous patent documents and common rotary evaporation devices on the market, it is difficult to prevent the occurrence of foaming of proteins / peptides / sugars during the rotary evaporation process. This results in the experimenter / staff having to stay by the device at all times during the use of the conventional rotary evaporation device and adjust the vacuum exhaust valve according to the rotary evaporation situation to prevent foaming (how to achieve automation without leaving the machine?). The present invention only requires the experimenter / staff to close the relevant control valves and enter the relevant working parameters on the control panel, start the device, and then leave without worry. Therefore, the present invention truly achieves the goal of automation without consuming too much energy of the experimenter / staff, thereby improving work efficiency.

[0019] 4. The present invention provides an automated rotary evaporation device suitable for concentrating antioxidant substances. It uses nitrogen deoxygenation and nitrogen protection, making it very suitable for concentrating antioxidant active substances. Moreover, by leveraging the solubility characteristics of nitrogen, it can effectively prevent the occurrence of foaming of proteins / peptides / sugar substances during the rotary evaporation process. The present invention is also suitable for concentrating other non-antioxidant active but easily foaming substances. Therefore, the present invention has a relatively wide range of applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a structural schematic diagram of an automated rotary evaporation device suitable for concentrating antioxidant substances in the utility model.

[0022] Figure 2 Schematic diagram of the controller panel of the automated rotary evaporator.

[0023] In the figure, 1. vacuum exhaust port; 2. upper condenser of rotary evaporator; 3. water outlet of upper condenser; 4. water inlet of upper condenser; 5. nitrogen blow connection port; 6. glass connection fittings of rotary evaporator; 7. nitrogen blow control valve; 8. lifting column of rotary evaporator; 9. rotary motor; 10. connecting air pipe; 11. nitrogen blow control electric signal transmission line; 12. nitrogen blow pipe extension and retraction controller; 13. water outlet of lower condenser; 14. water inlet of lower condenser; 15. lower condenser of rotary evaporator; 16. electric signal transmission line for nitrogen blow pipe extension and retraction control; 17. connecting control valve ; 18. Rotary evaporation bottle; 19. Nitrogen blowpipe; 20. Exhaust control valve for solvent recovery bottle; 21. Solvent recovery bottle; 22. Automated rotary evaporation device controller panel; 23. Rotary evaporation bottle stopper; 24. Rotary evaporation water bath; 25. Drain control valve for solvent recovery bottle; 26. Vacuum pump control electrical signal transmission line; 27. Rotary evaporation device switch; 28. Rotary evaporation device base; 29. ​​Vacuum pump with built-in oxygen monitoring probe and vacuum controller; 30. Real-time monitoring panel for vacuum degree and oxygen content; 31. Vacuum pump exhaust handle; 32. Vacuum pump switch. DETAILED DESCRIPTION

[0024] The following embodiments will be described in detail with reference to the accompanying drawings. In actual use, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are intended only to illustrate the utility model and are not intended to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0025] Example 1

[0026] See also Figure 1, an automated rotary evaporation device suitable for concentrating antioxidant substances, including a rotary evaporation device body, a nitrogen blowing system and a vacuum system.

[0027] The main body of the rotary evaporator includes a rotary evaporator water bath 24 and a rotary evaporator bottle 18 mounted on the rotary evaporator water bath 24. The rotary evaporator water bath 24 is mounted on a rotary evaporator base 28. A rotary evaporator lifting column 8 is mounted on the rotary evaporator base 28, next to the rotary evaporator water bath 24. The handle of the rotary evaporator bottle 18 is fixed to the rotary evaporator lifting column 8, and the fixed height of the rotary evaporator bottle 18 can be adjusted up and down as needed. The front of the lower half of the rotary evaporator lifting column 8 is equipped with an automated rotary evaporator controller panel 22 and a rotary evaporator switch 27. A circuit board is housed within the rotary evaporator lifting column 8.

[0028] Motor 9 is used to rotate the rotary evaporation bottle to facilitate evaporation and concentration.

[0029] The handle port of the rotary evaporation bottle 18 is connected to the glass connecting fitting 6 of the rotary evaporation device, and the glass connecting fitting 6 of the rotary evaporation device is connected to the upper condenser 2 of the rotary evaporation device and the lower condenser 15 of the rotary evaporation device. The upper condenser 2 of the rotary evaporation device is provided with a vacuum exhaust port 1, an upper condenser water outlet 3 and an upper condenser water inlet 4. The lower condenser 15 of the rotary evaporation device is provided with a lower condenser water inlet 14 and a lower condenser water outlet 13. The bottom of the lower condenser 15 of the rotary evaporation device is connected to the solvent recovery bottle 21. Among them, the lower condenser water inlet 14 and the upper condenser water outlet 3 can be connected to the water outlet and water inlet of the low-temperature cooling circulation pump respectively. The lower condenser water outlet 13 and the upper condenser water inlet 4 are connected by a latex tube. The condensed liquid enters the lower condenser 15 of the rotary evaporation device and the upper condenser 2 of the rotary evaporation device in sequence from bottom to top, and finally flows back into the low-temperature cooling circulation pump.

[0030] The nitrogen blow system includes a nitrogen blow connection port 5, a nitrogen blow control valve 7, a nitrogen blow tube expansion and contraction controller 12, and a nitrogen blow tube 19. The nitrogen blow connection port 5 can be connected to an external nitrogen generator or nitrogen bottle. The nitrogen blow tube 19 passes through the glass connector 6 of the rotary evaporator and extends into the rotary evaporator bottle 18. The nitrogen blow tube expansion and contraction controller 12 is used to adjust the insertion depth of the nitrogen blow tube 19.

[0031] The vacuum system includes a vacuum pump 29 with a built-in oxygen monitoring probe and vacuum controller, a real-time monitoring panel for vacuum and oxygen content 30, a vacuum pump exhaust handle 31, and a vacuum pump switch 32. The vacuum pump 29 with a built-in oxygen monitoring probe and vacuum controller is connected to the vacuum exhaust port 1 on the upper condenser 2 via a connecting air pipe.

[0032] The automated rotary evaporation device controller panel 22 is connected to the nitrogen blow control valve 7 through the nitrogen blow control electrical signal transmission line 11 to control its start and stop; the automated rotary evaporation device controller panel 22 is connected to the nitrogen blow pipe extension controller 12 through the nitrogen blow pipe extension control electrical signal transmission line 16 to control the extension and stop of the nitrogen blow pipe 19 in the rotary evaporation bottle 18; the automated rotary evaporation device controller panel 22 is connected to the vacuum pump 29 with a built-in oxygen monitoring probe and vacuum controller through the vacuum pump control electrical signal transmission line 26 to control the start and stop of the vacuum pump, and at the same time monitor the changes in the vacuum degree and oxygen content of the automated rotary evaporation device in real time.

[0033] See also Figure 2 The controller panel (22) of the automated rotary evaporation device is a touch screen, including a "temperature" column, a "time" column, a "vacuum degree" column, a "speed" column, a "device lifting" menu, a "device resetting" menu, a "device lowering" menu, a "nitrogen blowpipe extension" menu, a "nitrogen blowpipe contraction" menu, a "nitrogen injection" menu, a "nitrogen stop" menu, a "start heating" menu, a "stop heating" menu, a "start rotation" menu, a "stop rotation" menu, a "run" menu, a "stop" menu, a "start vacuum pump controller" menu, a "turn off vacuum pump controller" menu, a "start vacuum pump" menu, a "turn off vacuum pump" menu, an "OK" menu, a "modify" menu, a series of digital menus (0, 1, 2, 3, 4, 5, 6, 7, 8, 9), and a series of cursor menus (←, ↑, ↓, →).

[0034] The use of this utility model is as follows:

[0035] Before rotary evaporation, the condensate in the low-temperature cooling circulation pump is first circulated in the upper condenser tube 2 and the lower condenser tube 15 of the rotary evaporation device; at the same time, the liquid to be concentrated is poured into the rotary evaporation bottle 18, and then the rotary evaporation bottle 18 is installed on the rotary evaporation device body, and the nitrogen blowpipe 19 is extended into the rotary evaporation bottle; the rotary evaporation device switch 27 and the vacuum pump switch 32 are turned on, the vacuum exhaust port 1 is connected using the connecting air pipe 10, and the vacuum pump 29 with a built-in oxygen monitoring probe and vacuum controller is connected to the rotary evaporation device body;

[0036] In the automated rotary evaporator controller panel 22, enter the data for "temperature," "time," "vacuum degree," and "speed" by clicking the numeric menu (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) and the cursor menu (←, ↑, ↓, →), and then click the "OK" menu to save the above data; close the solvent recovery bottle exhaust control valve 20, the solvent recovery bottle drain control valve 25, and the vacuum pump exhaust handle 31, and open the connection control valve 17; connect the nitrogen blow connection port 5 to an external nitrogen generator or nitrogen bottle;

[0037] In the automated rotary evaporator controller panel 22, the "Equipment Raise" and "Equipment Lower" menus are clicked to control the rotary evaporation flask 18 to descend to a suitable position in the rotary evaporation water bath 24. The "Nitrogen Blowpipe Extend" and "Nitrogen Blowpipe Retract" menus are clicked to control the nitrogen blowpipe 19 to extend into a suitable position below the liquid level of the liquid to be concentrated in the rotary evaporation flask. The "Nitrogen Injection" and "Start Vacuum Pump" menus are clicked to inject nitrogen into the liquid to be concentrated to expel oxygen therein.

[0038] When the vacuum and oxygen content real-time monitoring panel 30 of the vacuum pump 29 with a built-in oxygen monitoring probe and vacuum controller shows that all the oxygen in the rotary evaporation device has been discharged and the vacuum degree display has reached approximately one atmosphere of pressure, you can click the "Start vacuum pump controller" menu, "Start rotation" menu, and "Start heating" menu in sequence, or you can directly click the "Run" menu. Both methods can start the rotary evaporation of the liquid to be concentrated.

[0039] When the rotary evaporation experiment is completed, first click the "Stop Rotation" menu and the "Nitrogen Blowdown" menu, then click the "Device Reset" menu and the "Stop Heating" menu to lift the rotary evaporation flask 18 out of the water bath; then in the automated rotary evaporation device controller panel 22, enter the "Vacuum Degree" data as 0.101 MPa (one atmosphere) by clicking the digital menu (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) and the cursor menu (←, ↑, ↓, →), then click the "OK" menu and the "Run" menu to save and run the vacuum degree data; remove the rotary evaporation flask 18 from the rotary evaporation device body and quickly plug the rotary evaporation flask stopper 23.

[0040] Finally, in the automated rotary evaporation device controller panel 22, click the "Close vacuum pump controller" menu, the "Close vacuum pump" menu, and the "Nitrogen stop" menu to complete the rotary evaporation experiment.

[0041] During the experiment, if it is found that the rotary evaporation effect is not good, in the automatic rotary evaporation device controller panel 22, by clicking the digital menu (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) and the cursor menu (←, ↑, ↓, →), adjust the data of "temperature", "time", "vacuum degree" and "speed", and then click the "OK" menu and the "Run" menu to save and run the above data.

[0042] During the experiment, if it is found that there is too much solvent in the solvent recovery bottle 21, first close the connecting control valve 17, and then open the solvent recovery bottle exhaust control valve 20 and the solvent recovery bottle drain control valve 25 in sequence to drain the solvent; when the solvent is drained, first close the solvent recovery bottle exhaust control valve 20 and the solvent recovery bottle drain control valve 25, and then open the connecting control valve 17 to continue collecting the rotary evaporation solvent.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automated rotary evaporator suitable for concentrating antioxidant substances, comprising a rotary evaporator body, a nitrogen blowing system, and a vacuum system; wherein: The main body of the rotary evaporation device comprises a rotary evaporation water bath (24) and a rotary evaporation bottle (18) arranged on the rotary evaporation water bath (24); the rotary evaporation water bath (24) is arranged on the rotary evaporation device base (28); a rotary evaporation device lifting column (8) is arranged on the rotary evaporation device base (28) and next to the rotary evaporation water bath (24); the handle of the rotary evaporation bottle (18) is fixed on the rotary evaporation device lifting column (8); The handle port of the rotary evaporation bottle (18) is connected to the glass connecting fitting (6) of the rotary evaporation device, and the glass connecting fitting (6) of the rotary evaporation device is connected to the upper condenser (2) of the rotary evaporation device and the lower condenser (15) of the rotary evaporation device; the upper condenser (2) of the rotary evaporation device is provided with a vacuum exhaust port (1), an upper condenser water outlet (3) and an upper condenser water inlet (4); the lower condenser (15) of the rotary evaporation device is provided with a lower condenser water inlet (14) and a lower condenser water outlet (13); the bottom of the lower condenser (15) of the rotary evaporation device is connected to the solvent recovery bottle (21); The nitrogen blowing system comprises a nitrogen blowing connection port (5), a nitrogen blowing control valve (7), a nitrogen blowing pipe telescopic controller (12) and a nitrogen blowing pipe (19); the nitrogen blowing connection port (5) is externally connected to a nitrogen generating device or a nitrogen bottle; the nitrogen blowing pipe (19) passes through a glass connecting fitting (6) of a rotary evaporation device and penetrates into a rotary evaporation bottle (18).

2. The automated rotary evaporation device for concentrating antioxidant substances according to claim 1, characterized in that: The lower condenser pipe water inlet (14) and the upper condenser pipe water outlet (3) can be connected to the water outlet and water inlet of a low-temperature cooling circulation pump respectively. The lower condenser pipe water outlet (13) and the upper condenser pipe water inlet (4) are connected through a latex tube. The condensed liquid enters the lower condenser pipe (15) and the upper condenser pipe (2) of the rotary evaporation device in sequence from bottom to top, and finally flows back into the low-temperature cooling circulation pump.

3. The automated rotary evaporator for concentrating antioxidants according to claim 1, characterized in that: The vacuum system comprises a vacuum pump (29) with a built-in oxygen monitoring probe and a vacuum controller, a vacuum degree and oxygen content real-time monitoring panel (30), a vacuum pump exhaust handle (31) and a vacuum pump switch (32); the vacuum pump (29) with a built-in oxygen monitoring probe and a vacuum controller is connected to a vacuum exhaust port (1) on an upper condenser (2) through a connecting air pipe.

4. The automated rotary evaporator for concentrating antioxidants according to claim 1, characterized in that: An automated rotary evaporator controller panel (22) and a rotary evaporator switch (27) are provided on the front of the lower half of the rotary evaporator lifting column (8).

5. The automated rotary evaporation device for concentrating antioxidant substances according to claim 4, characterized in that: The controller panel (22) of the automated rotary evaporator is connected to the nitrogen blow control valve (7) via a nitrogen blow control electric signal transmission line (11); the controller panel (22) of the automated rotary evaporator is connected to the nitrogen blow pipe extension controller (12) via a nitrogen blow pipe extension control electric signal transmission line (16); and the controller panel (22) of the automated rotary evaporator is connected to a vacuum pump (29) with a built-in oxygen monitoring probe and a vacuum degree controller via a vacuum pump control electric signal transmission line (26).

6. The automated rotary evaporation device for concentrating antioxidant substances according to claim 1, characterized in that: The controller panel (22) of the automated rotary evaporator is a touch screen, comprising a "temperature" column, a "time" column, a "vacuum degree" column, a "speed" column, a "device lifting" menu, a "device resetting" menu, a "device lowering" menu, a "nitrogen blowpipe extension" menu, a "nitrogen blowpipe contraction" menu, a "nitrogen injection" menu, a "nitrogen stop" menu, a "start heating" menu, a "stop heating" menu, a "start rotation" menu, a "stop rotation" menu, a "run" menu, a "stop" menu, a "start vacuum pump controller" menu, a "stop vacuum pump controller" menu, a "start vacuum pump" menu, a "stop vacuum pump" menu, an "OK" menu, a "modify" menu, a series of digital menus (0, 1, 2, 3, 4, 5, 6, 7, 8, 9), and a series of cursor menus (←, ↑, ↓, →).

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