Wax gourd volatile aroma substance collecting device and application thereof

Abstract

The invention discloses a wax gourd volatile aroma substance collecting device and application thereof.The device comprises a base, a volatilization box and a collecting box are arranged on the base, and the volatilization box and the collecting box are connected through a third air pipe; a rotating mechanism is arranged in the volatilization box, a door plate is arranged on one side face of the volatilization box, and a temperature control mechanism is arranged on the opposite side face of the volatilization box. Wax gourd blocks can be uniformly heated to promote volatilization by utilizing the rotating mechanism, and the temperature in the volatilization box can be accurately controlled by utilizing the temperature control mechanism, so that aroma substances can be volatilized by the wax gourd blocks at the optimal temperature, and the collection efficiency of the aroma substances can be improved; when the device is combined with GC-MS, the rapid and accurate separation and quantitative analysis of aroma components can be realized, and the efficiency and precision of aroma detection are greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of volatile aroma collection devices, and in particular relates to a wax gourd volatile aroma substance collection device and application thereof. Background Art

[0002] Winter melon is a common vegetable, and its unique aroma can add flavor to food during cooking. However, the research and utilization of winter melon aroma are not sufficient. Existing aroma collection methods are usually inefficient and difficult to maintain the original characteristics of the aroma. Therefore, it is of great significance to develop an efficient and convenient device for collecting volatile aroma substances of winter melon.

[0003] GC-MS (Gaschromatography-mass spectrometry) is the full name of gas chromatography-mass spectrometry. It is a technology widely used in chemical analysis. It can separate and characterize the chemical components of samples under normal temperature and pressure. The principle of GC-MS is to separate volatile and semi-volatile compounds by gas chromatography, and then use mass spectrometry to accurately detect and identify the separated components. This method has the advantages of high resolution, high sensitivity, accurate qualitative and quantitative analysis, and can analyze and monitor trace components in complex samples in a short time.

[0004] During the research and development process, gas chromatography-mass spectrometry (GC-MS) was applied to the analysis and detection of wax gourd components. Volatile aroma substances are easily affected by the environment, and the use of GC-MS alone has the problem of aroma component loss and external interference. Most of the aroma collection devices in the prior art are relatively single and fixed, and the temperature cannot be adjusted according to actual needs. The aroma volatilization efficiency is still insufficient, which reduces the practical value of the equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a device for collecting volatile aroma substances of wax gourd.

[0006] The present invention also aims to provide the application of the above device in detecting volatile aroma substances of wax gourd by gas chromatography-mass spectrometry.

[0007] The first object of the present invention can be achieved by the following technical solution: a device for collecting volatile aroma substances of winter melon, comprising a base, a volatilization box and a collection box are arranged on the base, and the volatilization box and the collection box are connected through a third air pipe;

[0008] The volatile box is provided with a rotating mechanism, a door panel is provided on one side of the volatile box, and a temperature control mechanism is provided on the opposite side of the volatile box;

[0009] The rotating mechanism includes a motor, a turntable provided at the output end of the motor, and a wax gourd containing mechanism provided on the turntable, wherein the wax gourd containing mechanism is composed of a first air-permeable net, a fixing frame, and a pair of cover plates, one end of the pair of cover plates is connected to the fixing frame, and the other end is fixed by a buckle, and the pair of cover plates are also provided with a second air-permeable net;

[0010] The temperature control mechanism includes a fixed plate, a pump, a first air pipe, a temperature changer, a second air pipe and an air outlet hood. The fixed plate is arranged on the outer wall of the volatile box, the pump and the temperature changer are arranged on the fixed plate, the first air pipe is arranged between the pump and the temperature changer, the second air pipe is arranged between the temperature changer and the air outlet hood, and the air outlet of the air outlet hood is arranged in the volatile box.

[0011] Preferably, filters are provided on the first air pipe and the second air pipe.

[0012] Preferably, a temperature sensor is provided on the temperature changer.

[0013] Preferably, a bracket is provided on the base, and the volatilization box is fixed on the base through the bracket.

[0014] Preferably, the motor is disposed below the bottom of the volatilization box, the output end of the motor is connected to the turntable, and the turntable is disposed in the volatilization box.

[0015] Preferably, the volatile box is provided with a sliding groove on the side of the door panel, and the door panels are a pair and are arranged in the sliding groove.

[0016] Preferably, the door panel is also provided with a glass observation window, a lock and a handle.

[0017] Preferably, a discharge port is provided at the bottom of the collecting box.

[0018] The above-mentioned second object of the present invention can be achieved by the following technical scheme: application of the above-mentioned wax gourd volatile aroma substance collection device in detecting wax gourd volatile aroma substances by gas chromatography-mass spectrometry technology.

[0019] The device of the present invention can be combined with GC-MS technology to efficiently collect and maintain the original characteristics of aroma substances under temperature control and airflow regulation conditions, avoiding interference caused by environmental factors. The device can be used in conjunction with GC-MS to achieve rapid and accurate separation and quantitative analysis of aroma components, greatly improving the efficiency and accuracy of aroma detection.

[0020] The present invention has the following advantages:

[0021] (1) The device for collecting volatile aroma substances of winter melon provided by the present invention is equipped with a rotating mechanism. The rotating mechanism can make the winter melon pieces placed on the top rotate with it so as to be evenly heated and promote volatilization, which is helpful to improve the collection efficiency of aroma substances. Through the automatic rotation of the turntable, the position of the winter melon pieces in the volatilization box is constantly changing, avoiding local overheating or overcooling, ensuring that the temperature distribution of the winter melon pieces is more uniform, which is conducive to the full release of aroma substances, and at the same time accelerating the heat transfer of the winter melon pieces and the diffusion speed of the aroma substances, thereby shortening the overall collection time and improving work efficiency. The uniform heating and rapid volatilization are also helpful. In order to maintain the purity of the aroma substances in the winter melon and avoid the decomposition or deterioration of the aroma components caused by local high temperature, the quality of the aroma substances finally collected is improved. The turntable can be driven to rotate by a motor, and the rotation speed can be conveniently adjusted by the motor control system. The turntable is equipped with a cover plate, which is connected by a fixed frame and can be easily opened and closed and locked with the help of a buckle, so as to facilitate the placement and removal of the winter melon, making it more convenient to use and preventing the winter melon from falling when the turntable is operating. In addition, the first air permeable net and the second air permeable net are respectively arranged on the front and back of the turntable and on the cover plate, so that the external temperature can enter and the aroma of the internal winter melon can also seep out.

[0022] (2) The device for collecting volatile aroma substances of winter melon provided by the present invention is equipped with a temperature control mechanism, which can accurately control the temperature in the volatilization box to ensure that the aroma substances of the winter melon pieces volatilize at the optimal temperature. The filtration of the input gas can remove impurities and pollutants in the air, thereby improving the purity of the collected aroma substances and avoiding secondary pollution. Maintaining a constant temperature can reduce the decomposition and deterioration of the winter melon aroma substances at high or low temperatures. At the same time, the filtered pure gas helps to maintain the stability of the aroma substances and prolong their storage time. It can optimize the working environment in the volatilization box and make the aroma substances of the winter melon slices volatilize faster and more fully. This not only improves the collection efficiency, but also The time cost in the collection process is reduced. The temperature control mechanism can be firmly fixed at the rear of the volatilization box through the fixing plate, so that the mechanism structure is stable and reliable. The pump can drive the airflow to blow air, and it can be transported to the temperature changer along the first air pipe for temperature change. The temperature sensor is used for real-time monitoring to ensure that the input gas can be suitable for the optimal temperature required for the volatilization of the winter melon aroma. The working efficiency of the equipment can be effectively improved, and it is more practical to use. After that, the air with the standard temperature is transported to the air outlet hood along the second air pipe and blown into the volatilization box. In addition, filters are set on the first air pipe and the second air pipe to filter impurities in the air and prevent pollution to the environment inside the volatilization box.

[0023] (3) The device for collecting volatile aroma substances of winter melon in the present invention can be used to collect and extract aromas of winter melons in various shapes and parts, ensuring the integrity and diversity of aroma components. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the device for collecting volatile aroma substances of wax gourd in Example 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the rotating mechanism in the collecting device of Example 1 of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the temperature control mechanism in the collecting device of Example 1 of the present invention;

[0027] Figure 4 It is a side structural schematic diagram of the temperature control mechanism in the collecting device of Example 1 of the present invention;

[0028] Figure 5 This is a schematic side view of the structure of the device for collecting volatile aroma substances of winter melon in Example 1 of the present invention;

[0029] Figure 6 This is the GC-MS total ion map of the wax gourd sample in Example 2 of the present invention;

[0030] In the figure: 1. base; 2. bracket; 3. volatilization box; 4. rotating mechanism; 41. motor; 42. turntable; 43. first air permeable net; 44. fixing frame; 45. cover plate; 46. second air permeable net; 47. buckle; 5. door panel; 6. temperature control mechanism; 61. fixing plate; 62. pump; 63. first air pipe; 64. thermostat; 65. second air pipe; 66. air outlet hood; 67. filter; 68. temperature sensor; 7. third air pipe; 8. collection box; 9. discharge port. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. However, it is necessary to point out that the following embodiments are only used to describe the content of the invention and do not constitute a limitation on the protection scope of the present invention.

[0032] Example 1

[0033] like Figure 1 and Figure 5 As shown, the wax gourd volatile aroma substance collection device provided in this embodiment includes a base 1, a bracket 2 is provided on the base 1, a volatilization box 3 and a collection box 8 are provided on the bracket 2, and the volatilization box 3 and the collection box 8 are connected by a third air pipe 7.

[0034] A rotating mechanism 4 is provided in the volatilization box 3 , a door panel 5 is provided on one side of the volatilization box 3 , and a temperature control mechanism 6 is provided on the opposite side of the volatilization box 3 .

[0035] like Figure 2As shown, the rotating mechanism 4 includes a motor 41, a turntable 42 arranged at the output end of the motor 41 and a winter melon containing mechanism arranged on the turntable 42. The winter melon containing mechanism is composed of a first breathable net 43, a fixing frame 44 and a pair of cover plates 45. One end of the pair of cover plates 45 is connected to the fixing frame 44, and the other end is fixed by a buckle 47. A second breathable net 46 is also provided on the pair of cover plates 45.

[0036] The motor 41 is disposed below the bottom of the volatilization box 3 . The output end of the motor 41 is connected to a turntable 42 . The turntable 42 is disposed in the volatilization box 3 .

[0037] Specifically, the output end of the motor 41 is fixedly connected to the turntable 42, and a pair of fixing frames 44 are provided at two opposite sides of the turntable 42, and a first air permeable net 43 is provided between the two fixing frames 44. The lower ends of the pair of fixing frames 44 are fixed on the turntable 42, and the upper ends are connected with a cover plate 45. A buckle 47 is provided in the middle of the upper end of the cover plate 45, and the cover plate 45 can be easily opened, closed and locked with the help of the buckle 47. A second air permeable net 46 is also provided on the cover plate 45. The turntable 42 can be driven to rotate by the motor 41, and the rotation speed can be adjusted. The turntable 42 is equipped with a cover plate 45, which is connected by the fixing frame 44. The cover plate 45 can be easily opened, closed and locked with the help of the buckle 47, so that it is easy to place and take out the winter melon, which is more convenient to use and prevents the winter melon from falling when the turntable 42 is operating. In addition, the first air permeable net 43 and the second air permeable net 46 are respectively provided on the front and back of the turntable 42 and the cover plate 45, so that the external temperature can enter and the aroma of the internal winter melon can also seep out.

[0038] The rotating mechanism 4 can be used to allow the winter melon placed above to rotate along with the rotation so that it is evenly heated and volatilized, which helps to improve the collection efficiency of the aroma substances. Through the automatic rotation of the turntable, the position of the winter melon in the volatilization box is constantly changing, avoiding local overheating or overcooling, ensuring that the temperature distribution of the entire winter melon is more uniform, which is conducive to the full release of the aroma substances. At the same time, it accelerates the heat transfer of the winter melon and the diffusion rate of the aroma substances, thereby shortening the overall collection time and improving work efficiency. Uniform heating and rapid volatilization also help to maintain the purity of the winter melon aroma substances, avoid the decomposition or deterioration of the aroma components due to local high temperature, and improve the quality of the aroma substances finally collected.

[0039] like Figure 3 and Figure 4 As shown, the temperature control mechanism 6 includes a fixed plate 61, a pump 62, a first air pipe 63, a temperature changer 64, a second air pipe 65 and an air outlet hood 66. The fixed plate 61 is arranged on the outer wall of the volatilization box, the pump 62 and the temperature changer 64 are arranged on the fixed plate 61, the first air pipe 63 is arranged between the pump 62 and the temperature changer 64, the second air pipe 65 is arranged between the temperature changer 64 and the air outlet hood 66, and the air outlet of the air outlet hood 66 is arranged in the volatilization box 3.

[0040] Specifically, the fixed plate 61 is provided with a pump 62, the output end of the pump 62 is connected to the first air pipe 63, the outlet end of the first air pipe 63 is connected to the temperature changer 64, the outlet end of the temperature changer 64 is connected to the second air pipe 65, and the outlet end of the second air pipe 65 is connected to the air outlet hood 66.

[0041] Filters 67 are provided on the first air pipe 63 and the second air pipe 65 .

[0042] The temperature changer 64 is provided with a temperature sensor 68 .

[0043] Specifically, a pump 62 is provided on the fixing plate 61, and the output end of the pump 62 is connected to a first air pipe 63, and the outlet end of the first air pipe 63 is connected to a temperature changer 64, and the outlet end of the temperature changer 64 is connected to a second air pipe 65, and the outlet end of the second air pipe 65 is connected to an air outlet hood 66. A filter 67 is provided on the first air pipe 63 and the second air pipe 65, and a temperature sensor is provided on the temperature changer 64. The device can be firmly fixed to the rear of the volatilization box 3 through the fixing plate 61, so that the device structure is stable and reliable, and the pump 62 can drive the airflow to blow air along The first air pipe 63 can be transported to the temperature changer 64 for temperature change, and the temperature sensor is used for real-time monitoring to ensure that the input gas can be suitable for the optimal temperature required for the volatilization of the winter melon aroma, which can effectively improve the working efficiency of the equipment and make it more practical to use. After that, the air with the required temperature is transported to the air outlet hood 66 along the second air pipe 65 and blown into the volatilization box 3. In addition, filters 67 are provided on the first air pipe 63 and the second air pipe 65, which can filter impurities in the air to prevent pollution to the environment inside the volatilization box 3.

[0044] The temperature control mechanism 6 can be used to accurately control the temperature in the volatilization box to ensure that the wax gourd volatilizes the aroma substances at the optimal temperature. The filtration of the input gas can remove impurities and pollutants in the air, thereby improving the purity of the collected aroma substances, avoiding secondary pollution, and maintaining a constant temperature. The decomposition and deterioration of the wax gourd aroma substances at high or low temperatures can be reduced. At the same time, the filtered pure gas helps to maintain the stability of the aroma substances and prolong their shelf life. It can optimize the working environment in the volatilization box and make the aroma substances in the wax gourd slices evaporate faster and more fully, which not only improves the collection efficiency, but also reduces the time cost during the collection process.

[0045] In this embodiment, a slide groove is provided at the front end of the volatilization box 3, and a pair of door panels 5 are arranged in the slide groove.

[0046] The door panel 5 is also provided with a glass observation window, a lock catch and a handle.

[0047] The front end of the volatilization box 3 is slidably connected to a door panel 5, and the rear end of the volatilization box 3 is fixedly connected to a temperature control mechanism 6. The device can be used to accurately control the temperature in the volatilization box to ensure that the wax gourd volatilizes the aroma substances at the optimal temperature. The filtration of the input gas can remove impurities and pollutants in the air, thereby improving the purity of the collected aroma substances, avoiding secondary pollution, and maintaining a constant temperature. The decomposition and deterioration of the wax gourd aroma substances at high or low temperatures can be reduced. At the same time, the filtered pure gas helps to maintain the stability of the aroma substances and prolong their shelf life. It can optimize the working environment in the volatilization box and make the aroma substances in the wax gourd slices evaporate faster and more fully, which not only improves the collection efficiency, but also reduces the time cost during the collection process.

[0048] The bottom of the collecting box 8 is provided with a discharge port 9 .

[0049] The working principle of the present invention is as follows: through the rotating mechanism 4, the turntable 42 can be driven to rotate through the motor 41, and the rotation speed can be adjusted as needed. The turntable 42 is equipped with a cover plate 45, which is connected through a fixing frame 44. The cover plate 45 can be easily opened and closed and locked with the help of a buckle 47, so that it is convenient to place and take out the winter melon, which is more convenient to use and prevents the winter melon from falling when the turntable 42 is in operation. In addition, the first air permeable net 43 and the second air permeable net 46 are respectively arranged on the front and back of the turntable 42 and on the cover plate 45, so that the external temperature can enter and the aroma of the internal winter melon can also seep out. The device can be firmly fixed by the temperature control mechanism 6 through the fixing plate 61. It is fixed at the rear of the volatilization box 3, so that the equipment structure is stable and reliable. The pump 62 can drive the air flow to blow air, and it can be transported to the temperature changer 64 along the first air pipe 63 for temperature change. The temperature sensor is used for real-time monitoring to ensure that the input gas can be suitable for the optimal temperature required for the volatilization of the winter melon aroma, which can effectively improve the working efficiency of the equipment and make it more practical to use. After that, the air with the standard temperature is transported to the air outlet hood 66 along the second air pipe 65 and blown into the volatilization box 3. In addition, filters 67 are set on the first air pipe 63 and the second air pipe 65, which can filter impurities in the air to prevent pollution to the environment inside the volatilization box 3.

[0050] Example 2

[0051] The application of the wax gourd volatile aroma substance collection device in Example 1 in the detection of wax gourd volatile aroma substances by gas chromatography-mass spectrometry technology can be applied after the wax gourd aroma is extracted, and can be applied to the aroma collection and sampling of various forms and parts of wax gourd based on gas chromatography-mass spectrometry (GC-MS).

[0052] In order to verify the effect of the aroma collection and sampling device based on gas chromatography-mass spectrometry (GC-MS) provided by the present invention, the following experiment was conducted.

[0053] The aroma of the wax gourd sample was analyzed using the aroma collection and sampling device based on gas chromatography-mass spectrometry (GC-MS) provided in the present application.

[0054] Three groups of fruit samples at 0D (day), 5D, 10D, 15D, and 20D after pollination were selected as samples to be tested, and the gas phase conditions were set as follows: injection port temperature: 250°C; injection mode: no split; carrier gas: helium (99.999%); carrier gas flow rate: 1mL / min; program temperature rise: initial column temperature 35°C, hold for 2min; temperature rise to 100°C at 5°C / min, hold for 5min; temperature rise to 215°C at 5°C / min, no hold. Mass spectrometry conditions: electron bombardment source (EI source); electron energy set to 70eV; transmission line temperature: 230°C; ion source temperature: 230°C; quadrupole temperature: 150°C; run full scan mode, scan mass-to-charge ratio range 35-450m / z; solvent delay: 8min.

[0055] The experimental results are as follows:

[0056] Figure 6 Table 1 is the GC-MS total ion diagram of wax gourd sample, and Table 2 is the diagram of 35 volatile components extracted from wax gourd. Figure 6 It can be seen that the separation and detection results of various volatile components in the aroma of winter melon have sharp signal peaks and concentrated distribution, indicating that the main aroma components have been effectively extracted and detected. The changes in retention time and signal intensity reflect the dynamic release characteristics of volatile substances. The background signal is low and the repeatability is good, which further verifies the efficiency and accuracy of this device combined with GC-MS technology in aroma component analysis, and provides reliable data support for the research and application of winter melon aroma substances. It can be seen from the test results in Table 1 that the method of the present invention can greatly improve the detection rate of volatile components in winter melon.

[0057] Table 1 35 volatile components extracted from wax gourd

[0058]

[0059] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for collecting volatile aroma substances of winter melon, comprising a base (1), characterized in that: The base (1) is provided with a volatilization box (3) and a collection box (8), and the volatilization box (3) and the collection box (8) are connected via a third air pipe (7); The volatile box (3) is provided with a rotating mechanism (4), one side of the volatile box (3) is provided with a door panel (5), and the opposite side of the volatile box (3) is provided with a temperature control mechanism (6); The rotating mechanism (4) comprises a motor (41), a turntable (42) arranged at the output end of the motor (41), and a winter melon accommodating mechanism arranged on the turntable (42); the winter melon accommodating mechanism comprises a first air-permeable net (43), a fixing frame (44), and a pair of cover plates (45); one end of the pair of cover plates (45) is connected to the fixing frame (44), and the other end is fixed by a buckle (47); and a second air-permeable net (46) is also arranged on the pair of cover plates (45); The temperature control mechanism (6) comprises a fixing plate (61), a pump (62), a first air pipe (63), a temperature changer (64), a second air pipe (65) and an air outlet hood (66); the fixing plate (61) is arranged on the outer wall of the volatile box; the pump (62) and the temperature changer (64) are arranged on the fixing plate (61); the first air pipe (63) is arranged between the pump (62) and the temperature changer (64); the second air pipe (65) is arranged between the temperature changer (64) and the air outlet hood (66); and the air outlet of the air outlet hood (66) is arranged in the volatile box (3).

2. The device for collecting volatile aroma substances of winter melon according to claim 1, characterized in that: Filters (67) are provided on the first air pipe (63) and the second air pipe (65).

3. The device for collecting volatile aroma substances of winter melon according to claim 1, characterized in that: The temperature changer (64) is provided with a temperature sensor (68).

4. The device for collecting volatile aroma substances of winter melon according to claim 1, characterized in that: A bracket (2) is provided on the base (1), and the volatilization box (3) is fixed on the base (1) via the bracket (2).

5. The device for collecting volatile aroma substances of winter melon according to claim 1, characterized in that: The motor (41) is arranged below the bottom of the volatilization box (3); the output end of the motor (41) is connected to the turntable (42); and the turntable (42) is arranged in the volatilization box (3).

6. The device for collecting volatile aroma substances of winter melon according to claim 1, characterized in that: The volatile box (3) is provided with a door panel (5) on the side thereof, on which a slide groove is provided. The door panels (5) are a pair and are arranged in the slide groove.

7. The device for collecting volatile aroma substances of winter melon according to claim 6, characterized in that: The door panel (5) is also provided with a glass observation window, a lock catch and a handle.

8. The device for collecting volatile aroma substances of winter melon according to claim 1, characterized in that: The bottom of the collecting box (8) is provided with a discharge port (9).

9. Use of the wax gourd volatile aroma substance collection device according to any one of claims 1 to 8 in detecting wax gourd volatile aroma substances by gas chromatography-mass spectrometry.

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