A nutrient real-time detection device based on fluorescence spectrum technology

Abstract

The utility model provides a kind of nutrient substance real-time detection device based on fluorescence spectrum technology, belong to food detection equipment field.Solved how in the process of boiling food makes nutrient substance to be retained to the greatest extent, avoid the problem that the nutrient substance is decomposed and converted into other substances in large quantities caused by overlong cooking time.It includes device main body, fluid passage, filtering device, light emitting device, fluorescence receiving device and fluorescence detection device, the fluid passage is arranged in device main body and penetrates device main body, and the both ends of fluid passage are detachably installed with filtering device, the fluid passage is transparent material, light emitting device and fluorescence receiving device are symmetrically arranged in the both sides of fluid passage and are in conformity with fluid passage, and the light of light emitting device can be received by fluorescence receiving device by passing through fluid passage.It is mainly used for detecting the release condition of nutrient substance in the process of food boiling.

Description

Technical Field

[0001] This utility model belongs to the field of food testing equipment, and in particular relates to a real-time nutrient detection device based on fluorescence spectroscopy technology. Background Technology

[0002] Boiling is a classic cooking method, popular for its ease of preparation and ability to maximize the flavor of food. Compared to other cooking methods, it offers significant health advantages. However, during boiling, the high temperature breaks down the cell structure of food, releasing intracellular nutrients. As heating progresses and the temperature rises, some nutrients undergo oxidation and decomposition, leading to nutrient loss. Furthermore, some nutrients may even transform into carcinogens and other non-absorbable substances, posing a health risk. Therefore, precise control of heating time and temperature is crucial during boiling, based on the release of various nutrients from the food cells.

[0003] Existing technologies, such as Chinese Patent Publication No. CN119776577A entitled "A primer set, composition, kit and method for identifying apple edge rot fungus based on qPCR" and Chinese Patent Publication No. CN119753197A entitled "A composition for detecting apple black spot fungus and its application", both use fluorescence technology to detect harmful substances in apples, but neither of them uses fluorescence detection technology to detect nutrients in food. Utility Model Content

[0004] In view of this, in order to maximize the retention of nutrients during the boiling process of food and avoid the problem of excessive decomposition and transformation of nutrients into other substances due to excessive boiling time, this utility model proposes a real-time nutrient detection device based on fluorescence spectroscopy technology. The device is placed in the food boiling liquid and uses fluorescence spectroscopy to detect various fluorescent nutrients released from the food in real time, making the amount of nutrients visible. Based on the feedback from the detection results, the heating device can be manually controlled; or the detection device and the heating device can be linked, with the heating device automatically adjusting according to the real-time detection results. When the food has fully released its nutrients, heating is stopped in time to ensure maximum nutrient retention.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a real-time nutrient detection device based on fluorescence spectroscopy technology, comprising a device body, a fluid channel, a filter device, a light-emitting device, a fluorescence receiving device, and a fluorescence detection device. The fluid channel is disposed within and penetrates the device body, and filter devices are detachably installed at both ends of the fluid channel. The light-emitting device, the fluorescence receiving device, and the fluorescence detection device are all disposed within the device body, and the fluorescence receiving device is connected to the fluorescence detection device. The fluid channel is made of transparent material, and the light-emitting device and the fluorescence receiving device are symmetrically arranged on both sides of the fluid channel and are in close contact with the fluid channel. The light generated by the light-emitting device can pass through the fluid channel and be received by the fluorescence receiving device.

[0006] Furthermore, the light-emitting device includes an electroluminescent light source and a focusing lens, the focusing lens being fitted into the fluid channel.

[0007] Furthermore, the fluorescence receiving device includes a cavity, a heat-resistant protective wall, and a fluorescence detection probe. The cavity is fitted with a fluid channel, the heat-resistant protective wall and the fluorescence detection probe are located inside the cavity, the heat-resistant protective wall is fitted with the fluid channel, and the fluorescence detection probe is connected to the fluorescence detection device via an optical fiber.

[0008] Furthermore, it also includes a liquid temperature sensor, which is fixed to the main body of the device.

[0009] Furthermore, it also includes an electronic control unit and a USB charging case. The electronic control unit is located inside the main body of the device, and the USB charging case is located on the outer surface of the main body of the device and connected to the electronic control unit. The electronic control unit contains a temperature processing system, a signal transmitter, and a battery. The electronic control unit is connected to all electrical components in the device to supply them with power and transmit information.

[0010] Furthermore, the fluid channel is a cylindrical pipe or a square pipe.

[0011] Furthermore, the filter device is connected to the fluid channel using a snap-fit ​​method.

[0012] Furthermore, the outer surface of the main body of the device is coated with a film, and the dense and uniform coating can reduce the adhesion of air bubbles.

[0013] Furthermore, the filtration device includes three layers of filter screens, consisting of a coarse filter screen, a fine filter screen, and a bio-based biodegradable filter screen, arranged sequentially from the outside to the inside of the fluid channel.

[0014] Furthermore, the coarse filter mesh has a pore size of 4-5 mm, and the fine filter mesh has a pore size of 1-2 mm.

[0015] Compared with the prior art, the beneficial effects of the real-time nutrient detection device based on fluorescence spectroscopy technology described in this utility model are:

[0016] 1. This utility model utilizes fluorescence spectroscopy technology to detect various nutrients in the boiling liquid during the food boiling process in real time. Based on the feedback of the detection results, the heating process is controlled to maximize the retention of nutrients and avoid the problem of nutrient loss or conversion into other substances due to excessive cooking time.

[0017] 2. The fluid channel of this utility model is equipped with a filter device at both ends to prevent food scraps and other substances from entering the fluid channel and affecting the detection results, thereby improving the accuracy of fluorescence detection.

[0018] 3. This utility model takes into account the wide variety of foods that result in complex compositions of boiling liquid, and the fact that some foods produce oil during the boiling process. Therefore, the filtration device includes a bio-based biodegradable filter to adsorb oil and improve the accuracy of detection.

[0019] 4. The filter device of this utility model adopts a detachable installation method, which facilitates individual disassembly, replacement, cleaning and assembly. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of the main structure of a real-time nutrient detection device based on fluorescence spectroscopy technology according to the present invention.

[0022] In the diagram: 1-Main body of the device; 2-Fluid channel; 3-Filtering device; 4-Light emission device; 5-Fluorescence receiving device; 6-Fluorescence detection device; 7-Electrical control body; 8-USB charging case. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0024] I. Detailed Implementation Method 1, see [link / reference] Figure 1This embodiment describes a real-time nutrient detection device based on fluorescence spectroscopy technology, comprising a device body 1, a fluid channel 2, a filter device 3, a light-emitting device 4, a fluorescence receiving device 5, and a fluorescence detection device 6. The fluid channel 2 is disposed within and extends through the device body 1, and the filter device 3 is detachably installed at both ends of the fluid channel 2. The light-emitting device 4, the fluorescence receiving device 5, and the fluorescence detection device 6 are all disposed within the device body 1, with the fluorescence receiving device 5 connected to the fluorescence detection device 6. The fluid channel 2 is made of transparent material, and the light-emitting device 4 and the fluorescence receiving device 5 are symmetrically arranged on both sides of the fluid channel 1 and are in close contact with the fluid channel 1. The light generated by the light-emitting device 4 can pass through the fluid channel 2 and be received by the fluorescence receiving device 5.

[0025] The light-emitting device 4 includes an electroluminescent light source and a focusing lens, the focusing lens being attached to the fluid channel 2.

[0026] This novel electroluminescent light source comprises an LED light source with an excitation wavelength of 305nm and a laser light source with an excitation wavelength of 405nm. The 305nm LED light source has a power of 3W, and the 405nm laser light source has a power of 10mW. The diameter of the light spot reaching the sample is 2*2cm. 2 A focusing lens is attached below to improve the utilization of the light source.

[0027] The fluorescence receiving device 5 includes a cavity, a heat-resistant protective wall, and a fluorescence detection probe. The cavity is fitted with the fluid channel 2. The heat-resistant protective wall and the fluorescence detection probe are located inside the cavity. The fluorescence detection probe is connected to the fluorescence detection device 5 via an optical fiber.

[0028] This invention features a heat-resistant protective wall made of high-temperature resistant silica, capable of withstanding temperatures up to 500℃, used to protect the internal fluorescence detection probe. The fluorescence detection device 5 has a detection range of 200-700nm, a resolution of 0.1nm, and a detection accuracy of 2%.

[0029] The device also includes a liquid temperature sensor, which is fixed to the main body 1 of the device.

[0030] The device also includes an electronic control unit 7 and a USB charging case 8. The electronic control unit 7 is disposed inside the main body 1 of the device, and the USB charging case 8 is disposed on the outer surface of the main body 1 of the device and connected to the electronic control unit 7. The electronic control unit 7 is equipped with a temperature processing system, a signal transmitter and a battery. The electronic control unit 7 is connected to all electrical components in the device to supply them with power and transmit information.

[0031] The fluid channel 2 is a cylindrical pipe, but it can also be a square pipe. The dimensions and weight specifications of this invention are provided. The detection device is a cuboid 10cm long, 7cm wide, and 7cm high, with cylindrical pipes of 1cm radius on both sides. The detection device weighs 2kg, with an average density greater than that of water, preventing it from floating on the surface of the boiling liquid and ensuring it sinks to the bottom. This allows the boiling liquid to completely fill the fluid channel 2, improving the accuracy of fluorescence detection. The filter device 3 is connected to the fluid channel 2 via a snap-fit ​​mechanism, facilitating quick installation and removal for cleaning.

[0032] The outer surface of the main body 1 of the device is coated with a dense and uniform film, which reduces the adhesion of air bubbles. The coating adhesion is ≥3.5N / 15mm, and the uniformity error is ≤5%, reducing air bubble adhesion caused by surface roughness. It can remain at the bottom when the water solution is boiling, reducing the impact of boiling water and minimizing detection errors caused by external noise. The coating can be made of transparent, high-barrier polyester alumina material from the PET-AlOX series.

[0033] The filtration device 3 includes three layers of filter screens, which are a coarse filter screen, a fine filter screen, and a bio-based biodegradable filter screen, arranged sequentially from the outside to the inside of the fluid channel. The coarse filter screen is used to intercept large particles and large food fragments; the fine filter screen is used to filter out small residues; and the bio-based biodegradable filter screen is used to adsorb the oil produced during the boiling process, reducing its impact on the detection. All three filter screens can be removed, replaced, cleaned, and assembled individually.

[0034] The coarse filter mesh has a pore size of 4-5 mm, and the fine filter mesh has a pore size of 1-2 mm.

[0035] The working principle of this invention is as follows: Before use, check the power of the device to ensure sufficient power for operation. After checking, place the device in the food boiling liquid. Since the average density of the detection device is greater than that of water, the device sinks to the bottom in the boiling liquid. After being filtered by the filter device 3, the boiling liquid enters the fluid channel 2 and is irradiated by excitation light of a specific wavelength generated by the light-emitting device 4, causing the nutrients to fluoresce. The fluorescence receiving device 5 transmits the collected fluorescence intensity and wavelength data to the fluorescence detection device 6 for analysis, and then wirelessly transmits the data to an external display device, thereby achieving real-time detection of the nutrient content released from the food in the boiling liquid.

[0036] This invention can be used with external mobile devices, such as a matching App developed based on pre-experimental nutrient fluorescence detection data, related optimization algorithms, and the real-time monitoring process of the detection device. To facilitate user visualization of nutrient content, the App wirelessly connects to the detection device via Bluetooth for data transmission. Upon first use, users can open the App, select "Pair Device" on the start screen, enter the device's serial number, and pair with the detection device via Bluetooth. After successful pairing, users can view the changes in nutrient content during the device's operation within the App.

[0037] The accompanying app features the ability to activate the detection device and visualize nutrient composition changes. Simply place the device in the boiling solution, open the app, and tap to start the device. Ensure the luminescent device is functioning correctly. The software's internal algorithm subtracts the influence of background darkness and noise (external fluorescence before detection) to improve accuracy. Select the desired nutrients on the app; multiple substances can be selected, and the software will automatically balance the selection. The app displays images showing nutrient composition changes during device use. Users can select a nutrient composition change graph to see a line graph of nutrient changes during the current use, providing a clearer view of the nutrient composition changes during cooking. The app also allows users to observe the temperature changes of the tested substance and adjust the heating device according to the app's recommended temperature to maintain a constant boiling temperature and maximize nutrient extraction.

[0038] The accompanying app allows for synchronized adjustment of the heating device. It compares real-time monitoring results with user-defined nutrient requirements, generating control commands to send to the heating device for regulation. The app continuously optimizes and updates its algorithm using user-allowed data collection. Users can connect to the device and update the algorithm themselves via the app. Simply open the app, click settings, then algorithm optimization and update; the app will automatically update the device. Simultaneously, with user permission, the app can collect data on changes in nutrient composition from different users, continuously updating and optimizing the heating process and the algorithm for maximizing nutrient content, thus constantly improving the user experience.

[0039] This invention features an automatic start-up function via a companion app. When the user does not activate the device, the liquid temperature sensor will automatically start when the ambient temperature exceeds 50°C. The device will save the detection data and transmit it to the app on the user's mobile device. When the water reaches boiling point, the device will determine if the nutrient content meets the standard. If not, the user will be prompted to "continue boiling." If the standard is met at this point, or if the standard was met before boiling, the user will be prompted to "the nutrient content of this boiled liquid has met the standard; please stop heating," and the detection will automatically stop after 5 minutes. If the user wants to continue boiling, they can select "continue detection" on the app, and the device will continue detecting. However, this requires the user to manually click "stop detection" on the app to terminate the current detection. When "continue heating" is selected, the app will ask the user "whether to continue detection" every 30 minutes. If the user does not make a selection, the detection will automatically stop after 5 minutes.

[0040] The cleaning method of this utility model is as follows: After the equipment is used, it needs to be cleaned to prevent food residue in the liquid flow tank from affecting the next use. The cleaning steps include: taking out the detection device, removing the filter devices 3 on both sides after cooling, rinsing the main body 1, fluid channel 2 and filter devices 3 with clean water to ensure that there is no residue of various nutrients from the previous use, and reinstalling the filter devices 3 after the clean water has completely dried for the next use.

[0041] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A real-time nutrient detection device based on fluorescence spectroscopy technology, characterized in that: The device includes a main body (1), a fluid channel (2), a filter (3), a light-emitting device (4), a fluorescence receiving device (5), and a fluorescence detection device (6). The fluid channel (2) is located inside the main body (1) and extends through the main body (1). The filter (3) is detachably installed at both ends of the fluid channel (2). The light-emitting device (4), the fluorescence receiving device (5), and the fluorescence detection device (6) are all located inside the main body (1). The fluorescence receiving device (5) is connected to the fluorescence detection device (6). The fluid channel (2) is made of transparent material. The light-emitting device (4) and the fluorescence receiving device (5) are symmetrically arranged on both sides of the fluid channel (2) and are close to the fluid channel (2). The light generated by the light-emitting device (4) can pass through the fluid channel (2) and be received by the fluorescence receiving device (5). The fluorescence receiving device (5) includes a cavity, a heat-resistant protective wall and a fluorescence detection probe. The cavity is fitted with the fluid channel (2). The heat-resistant protective wall and the fluorescence detection probe are located inside the cavity. The heat-resistant protective wall is fitted with the fluid channel (2). The fluorescence detection probe is connected to the fluorescence detection device (6) through an optical fiber. The filter device (3) is connected to the fluid channel (2) by a snap-fit ​​method; The outer surface of the main body (1) of the device is coated with a film; The filtration device (3) includes three layers of filter screens, which are a coarse filter screen, a fine filter screen and a bio-based biodegradable filter screen, arranged from the outside to the inside of the fluid channel (2).

2. The real-time nutrient detection device based on fluorescence spectroscopy technology according to claim 1, characterized in that: The light-emitting device (4) includes an electroluminescent light source and a focusing lens, the focusing lens being attached to the fluid channel (2).

3. The real-time nutrient detection device based on fluorescence spectroscopy technology according to claim 1, characterized in that: It also includes a liquid temperature sensor, which is fixed on the main body (1) of the device.

4. The real-time nutrient detection device based on fluorescence spectroscopy technology according to claim 1, characterized in that: It also includes an electronic control unit (7) and a USB charging case (8). The electronic control unit (7) is located inside the main body (1) of the device, and the USB charging case (8) is located on the outer surface of the main body (1) and connected to the electronic control unit (7). The electronic control unit (7) is equipped with a temperature processing system, a signal transmitter and a battery. The electronic control unit (7) is connected to all electrical components in the device to supply them with power and transmit information.

5. The real-time nutrient detection device based on fluorescence spectroscopy technology according to claim 1, characterized in that: The fluid channel (2) is a cylindrical pipe or a square pipe.

6. The real-time nutrient detection device based on fluorescence spectroscopy technology according to claim 1, characterized in that: The coarse filter mesh has a pore size of 4-5 mm, and the fine filter mesh has a pore size of 1-2 mm.

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