CN111802565B

CN111802565B - Device and method for reducing pesticide residues on food materials, storage medium and refrigeration equipment

Info

Publication number: CN111802565B
Application number: CN201910293417.4A
Authority: CN
Inventors: 伍志刚; 陆啸天; 史慧新
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2023-06-23
Anticipated expiration: 2039-04-12
Also published as: CN111802565A

Abstract

The invention provides a device for reducing food material pesticide residues, a method for reducing food material pesticide residues, computer equipment, a computer readable storage medium and refrigeration equipment, wherein the device for reducing food material pesticide residues comprises: the acquisition device is used for acquiring food material information; the processing device is used for determining pesticide information corresponding to the food material information and determining a preset pH value corresponding to the pesticide information; the preparation device is used for preparing degradation solution according to a preset pH value; and the spraying device is used for spraying the degradation solution onto the food material. According to the device for reducing the pesticide residues on the food materials, disclosed by the invention, a large amount of data can be statistically analyzed, the types of the degraded pesticides can be accurately locked according to the names or the types of the food materials, and the preset pH values suitable for the hydrolysis of different pesticides are selected according to the hydrolysis characteristics of different pesticides, so that the pesticide degradation is more efficient.

Description

Device and method for reducing pesticide residues on food materials, storage medium and refrigeration equipment

Technical Field

The present invention relates to the technical field of pesticide residue reduction, and more particularly, to a device for reducing pesticide residue on food materials, a method for reducing pesticide residue on food materials, a computer device, a computer-readable storage medium and a refrigeration device.

Background

The use of the pesticide plays a significant role in the development of agriculture, not only can ensure that the agricultural products are kept in harvest and increased in yield, but also can improve the quality of the products. But the use of pesticides causes serious pesticide pollution and food safety problems. After a large amount of pesticide is applied to the farmland, only about 1% of the pesticide effect is exerted, and the rest is left in the soil or enters the water area through runoff. The pesticide adsorbed on the plant surface and the residual pesticide absorbed by the root system in soil and water can be gradually distributed into the whole crop plant through migration and transformation in the plant body, so that the pollution to crops is caused; when contaminated grains, vegetables and the like are used as feeds and contaminated water is used for plant irrigation or animal feeding, pesticides are transferred into foods such as meat, milk, eggs, fish and the like, and people bring the pesticides into the body in a breathing, eating and other modes, so that the health and life of people are threatened.

At present, few researches are conducted on degradation modes of residual pesticides in food materials, and the degradation modes mainly comprise the following steps: direct water washing method is difficult to remove residual pesticide in food materials for water-insoluble pesticide; the microbial degradation method is a microbial which is screened out by genetic engineering modification or specific conditions and has degradation effect on a certain/a certain type of pesticide, and has the defects of high cost, long time consumption, narrow range, difficult application and the like; ozone oxidation method, ozone has strong oxidizing property, can oxidize and degrade pesticide remained in food materials, can generate bad smell after the ozone reaches a certain concentration, not only has certain harm to human health, but also can reduce the quality of food materials; in the photochemical degradation method, in order to generate enough light power, a mercury lamp is mostly adopted as a light source, mercury belongs to highly toxic substances, brain and liver injury can be possibly caused after human body contact, and the use of the mercury lamp for processing food materials has potential safety hazards. In addition, an excessive light power may cause adverse changes in the food materials, such as degradation of vitamins, oxidation of fats, etc.

Disclosure of Invention

The embodiment of the invention aims at least solving the problem that residual pesticides in food materials in the prior art are not easy to remove.

One aspect of the embodiments of the present invention provides a device for reducing pesticide residues on food materials.

One aspect of the embodiments of the present invention provides a method for reducing pesticide residues on food materials.

One aspect of an embodiment of the present invention provides a computer device.

One aspect of an embodiment of the present invention provides a computer-readable storage medium.

One aspect of an embodiment of the present invention provides a refrigeration device.

In view of the foregoing, an apparatus for reducing pesticide residues on food materials according to an embodiment of the present invention includes: the acquisition device is used for acquiring food material information; the processing device is used for determining pesticide information corresponding to the food material information and determining a preset pH value corresponding to the pesticide information; the preparation device is used for preparing degradation solution according to a preset pH value; and the spraying device is used for spraying the degradation solution onto the food material.

The embodiment of the invention provides a device for reducing pesticide residues on food materials, which comprises an acquisition device, a processing device, a blending device and a spraying device, wherein the acquisition device is used for acquiring food material information such as the type, the name, the weight and the like of the food materials, and the processing device is used for determining pesticide information corresponding to the food material information and determining a preset pH value corresponding to the pesticide information; specifically, the corresponding relation between the food and the pesticide can be prestored in a database, and the pesticide possibly contained in the food is searched from the database according to the food information such as the type or name of the food, so as to obtain the corresponding pesticide information, wherein the database can be based on a large number of pesticides which are possibly contained or exceed the standard in a certain food obtained through the analysis of market sample investigation and detection and the spot check report of the national food and drug administration, the database comprises the optimal hydrolysis pH value and the sensitivity to ultraviolet light of different pesticides, and the database has real-time performance and can be used for continuously updating the pesticide; further, the preparation device can prepare degradation solution according to a preset pH value, specifically, pesticide possibly contained in the food is searched from a database based on the type, name and the like of the food, the optimal hydrolysis pH value of the pesticide is set to be the preset pH value, the preparation device prepares the degradation solution with the pH value being the preset pH value, the spraying device sprays the degradation solution onto the food, the degradation solution fully contacts with pesticide residues on the surface of the food, the pesticide is hydrolyzed, the pesticide hydrolysis reaction is the degradation reaction of the pesticide under the participation of water, and the removal effect of the pesticide residues in the food is obvious; in addition, the device for reducing the pesticide residues on the food materials can accurately lock the types of the degraded pesticides according to the names or the types of the food materials by statistically analyzing a large amount of data, and select the preset pH value suitable for the hydrolysis of different pesticides according to the hydrolysis characteristics of different pesticides, so that the pesticide degradation is more efficient. In particular, the hydrolysis rates of different pesticides at different pH values are different, and some pesticides are more susceptible to hydrolysis under acidic conditions, such as sulfonylurea pesticides; some pesticides are more susceptible to hydrolysis under alkaline conditions, such as carbamates, organophosphorus pesticides, and the like. Preferably, the acquiring device may be a camera, and the camera acquires food information through image recognition; or the acquisition device can be a control panel capable of inputting instructions, and a user can input corresponding food material information in the control panel.

In addition, the device for reducing pesticide residues on food materials provided by the technical scheme of the invention has the following additional technical characteristics:

in the above technical solution, preferably, the device for reducing pesticide residues on food materials further includes: the containing device is used for containing the solution to be prepared; the accommodating device is communicated with the blending device, and the solution to be blended enters the blending device from the accommodating device and is blended into degradation solution; the blending device is communicated with the spraying device, and the degradation solution enters the spraying device from the blending device and is sprayed on the food materials.

In the technical scheme, the device for reducing the pesticide residues on the food materials further comprises a containing device for containing the solution to be prepared, wherein the containing device is communicated with the preparing device, and the solution to be prepared enters the preparing device from the containing device and is prepared into degradation solution; specifically, the solution to be prepared can be introduced into the preparation device from the containing device, and the solution to be prepared is prepared into the degradation solution in the preparation device, for example, the solution to be prepared is an acidic solution with higher concentration or an alkaline solution with higher concentration, and the degradation solution is formed by adding water into the solution to be prepared for dilution and continuously stirring to enable the solution to reach a preset pH value. The preparation device is communicated with the spraying device, the degradation solution enters the spraying device from the preparation device and is sprayed on the food, specifically, after the degradation solution is prepared in the preparation device, the degradation solution is introduced into the spraying device communicated with the preparation device, and the degradation solution is sprayed on the food through the spraying device.

In any of the above embodiments, preferably, the device for reducing pesticide residues on food materials further includes: the pump body is used for pumping water into the blending device; the stirring device is used for stirring the solution to be prepared and the water in the preparation device; and the detection device is used for detecting the pH value of the solution to be prepared in the preparation device.

In the technical scheme, the device for reducing the pesticide residues on the food materials further comprises a pump body, a stirring device and a detection device, wherein the pump body is used for pumping water into the phase blending device, the detection device is used for detecting the pH value of the solution to be prepared in the blending device, specifically, the solution to be prepared can be introduced into the blending device from the containing device, the solution to be prepared is an acidic solution with higher concentration or an alkaline solution with higher concentration, the water is added into the solution to be prepared through the pump body for dilution, the stirring device is used for continuously stirring, the solution reaches the preset pH value, a degradation solution is formed, and in the process of preparing the degradation solution, the detection device can synchronously detect the pH value of the solution to be prepared in the blending device, and whether the pH value reaches the preset pH value is detected. Preferably, the detection means may be an acidometer or pH paper or the like.

In any of the above embodiments, preferably, the device for reducing pesticide residues on food materials further includes: and the photodegradation device is used for emitting ultraviolet light and irradiating the food materials.

In this technical scheme, the device that reduces edible material pesticide residue still includes the photodegradation device that is used for sending ultraviolet light and shines edible material, specifically, photodegradation device installs around edible material, sends ultraviolet light to edible material, and according to the photosensitivity of pesticide, photodegradation device begins work under appointed power, closes photodegradation device after the long T of work photodecomposition, accomplishes the pesticide degradation.

In any of the above embodiments, preferably, the photodegradation means is an ultraviolet lamp.

In the technical scheme, the photodegradation device is preferably an ultraviolet lamp, the food material is irradiated by ultraviolet light, the wavelength of the ultraviolet light is 200-400 nm, the ultraviolet light has the advantages of safety and environmental protection, the ultraviolet light has high energy, and the ultraviolet light can promote pesticide molecules to hydrolyze and enable chemical bonds to break after absorbing the energy of photons. Specifically, the ultraviolet lamp is a mercury-free ultraviolet lamp, such as an LED ultraviolet lamp, an electroluminescent ultraviolet lamp and the like, one or more ultraviolet lamps are arranged around the food material, ultraviolet light is emitted to the food material, and one or more ultraviolet lamps are turned on according to the photosensitivity of the pesticide, and turned off after the working photolysis time is long T, so that the pesticide degradation is completed. Preferably, the light power of the ultraviolet lamp is 0.05-200 mW/particle, the photodecomposition time length is related to the light power, the light sensitivity of the pesticide, the type of food materials and the weight of the food materials, and the photodecomposition time length is in the range of 0-24 hours.

In any of the above solutions, preferably, the spraying device is: one or a combination of an ultrasonic spraying device and a mechanical pressing type spraying device.

In this embodiment, the spraying device is preferably one or a combination of an ultrasonic spraying device and a mechanical pressing spraying device, and can achieve the function of spraying the degradation solution onto the food material.

An embodiment of the second aspect of the present invention provides a method for reducing food material pesticide residues, for use in a device for reducing food material pesticide residues as set forth in any one of the preceding claims, the method for reducing food material pesticide residues comprising: acquiring food material information; determining pesticide information corresponding to the food material information; determining a preset pH value corresponding to pesticide information; controlling the preparation device to prepare degradation solution according to a preset pH value; and controlling the spraying device to spray the degradation solution on the food material.

According to the method for reducing pesticide residues on the food materials, firstly, food material information such as the types, names and weights of the food materials is obtained, then pesticide information corresponding to the food material information is searched according to the pre-stored corresponding relation between the food materials and pesticides, specifically, the corresponding relation between the food materials and the pesticides can be pre-stored in a database, pesticides possibly contained in the food materials are searched from the database according to the types, names and other food material information of the food materials, so that corresponding pesticide information is obtained, wherein the database can be a pesticide which is very likely to be contained or exceeds standard in a certain food material based on a large number of market sample investigation and detection and the report analysis of the spot inspection of the national food and drug administration, the database comprises optimal hydrolysis pH values and sensitivity to ultraviolet light of different pesticides, and the database has real-time performance and can be updated continuously; further, determining a preset pH value corresponding to pesticide information; controlling the preparation device to prepare degradation solution according to a preset pH value; and controlling the spraying device to spray the degradation solution on the food material. Specifically, pesticides possibly contained in the food are searched from a database based on the type, name and the like of the food, the optimal hydrolysis pH value of the pesticides is set to be a preset pH value, a blending device is controlled to prepare a degradation solution with the pH value being the preset pH value, then a spraying device is controlled to spray the degradation solution onto the food, the degradation solution is fully contacted with pesticide residues on the surface of the food, the pesticide hydrolysis is initiated, the pesticide hydrolysis reaction is a degradation reaction under the participation of water, the pesticide residue removal effect in the food is obvious, and the pesticide residue removal effect in the food is obvious; in addition, according to the method for reducing the pesticide residues on the food materials, a large amount of data is analyzed through statistics, the types of the degraded pesticides can be accurately locked according to the names or the types of the food materials, and the preset pH values suitable for the hydrolysis of different pesticides are selected according to the hydrolysis characteristics of different pesticides, so that the pesticide degradation is more efficient. In particular, the hydrolysis rates of different pesticides at different pH values are different, and some pesticides are more susceptible to hydrolysis under acidic conditions, such as sulfonylurea pesticides; some pesticides are more susceptible to hydrolysis under alkaline conditions, such as carbamates, organophosphorus pesticides, and the like.

In any of the above technical solutions, preferably, the step of controlling the blending device to prepare the degradation solution according to a preset pH value includes: according to a preset pH value, selecting the type of the solution to be prepared; and controlling the pump body to add water into the selected solution to be prepared until the pH value of the solution to be prepared reaches a preset pH value.

In the technical scheme, the step of controlling the preparation device to prepare the degradation solution according to the preset pH value comprises the following steps: according to the preset pH value, selecting the type of the solution to be prepared, and controlling the pump body to add water into the selected solution to be prepared until the pH value of the solution to be prepared reaches the preset pH value; specifically, the pH values of the solutions to be prepared are different, the optimal hydrolysis pH value of the pesticide, namely a preset pH value, can be found out from a database according to pesticide information, and the types of the solutions to be prepared, such as an acidic solution to be prepared or an alkaline solution to be prepared, are selected according to the preset pH value; further, the pump body is controlled to add water to the selected solution to be prepared until the pH value of the solution to be prepared reaches a preset pH value. For example, the solution to be prepared is an acidic solution with higher concentration or an alkaline solution with higher concentration, and the solution to be prepared is diluted by adding water into the solution to be prepared and is continuously stirred to reach a preset pH value, so as to form a degradation solution.

In any of the above technical solutions, preferably, the step of controlling the pump to add water to the preset solution to be prepared until the pH value of the preset solution to be prepared reaches the preset pH value includes: and detecting the pH value of the solution to be prepared in advance in the process that the pump body adds water into the solution to be prepared in advance, and controlling the pump body to stop adding water until the pH value of the solution to be prepared in advance reaches the preset pH value.

In the technical scheme, in the process of adding water into the solution to be prepared in advance, the pH value of the solution to be prepared in advance is detected until the pH value of the solution to be prepared in advance reaches the preset pH value, and the pump body is controlled to stop adding water. Specifically, in the process of preparing the degradation solution, namely, in the process of adding water into the preset solution to be prepared by the pump body, synchronously detecting the pH value of the preset solution to be prepared, detecting whether the pH value of the preset solution to be prepared reaches the preset pH value, and if the pH value of the preset solution to be prepared reaches the preset pH value, controlling the pump body to stop adding water. Preferably, the pH value of the preset solution to be prepared can be detected by an acidometer or pH test paper or the like.

In any of the above embodiments, preferably, the step of controlling the spraying device to spray the degradation solution onto the food material includes: calculating a first working time of the spraying device according to the food material information; the spraying device is started and the first working time period is maintained.

In the technical scheme, first, a first working time length of the spraying device is determined according to food material information, and then the spraying device is started and maintained for the first working time length. Specifically, pesticides possibly contained in the food material are searched from a database based on the type, name and the like of the food material, and the weight of a degradation solution required for degrading the pesticides is determined according to the weight and the type of the food material, generally 2g to 100g, so that the first working time length of the spraying device is further determined.

In any of the above embodiments, preferably, after the step of controlling the spraying device to spray the degradation solution onto the food material, the method further includes: determining the working power and the second working time length of the photodegradation device according to pesticide information and food material information; and controlling the photodegradation device to operate at the working power and maintaining the second working time period.

In the technical scheme, firstly, the working power and the second working time length of the photodegradation device are determined according to pesticide information and food material information, and then the photodegradation device is controlled to operate at the working power and maintain the second working time length. Specifically, pesticides possibly contained in the food material are searched from a database based on the type, name and the like of the food material, and the working power and the second working time required by the photodegradation device for degrading the pesticides are determined according to the weight and the type of the food material, so that the photodegradation device is further controlled to operate at the working power and maintain the second working time.

In any of the above embodiments, preferably, the plurality of solutions to be formulated comprises: the pH value of the first solution to be prepared ranges from 2 to 7; the pH value of the second solution to be prepared ranges from 7 to 12.

In any of the above embodiments, preferably, the plurality of solutions to be formulated comprises: an alkaline solution and an acidic solution; the alkaline solution comprises: at least one of baking soda, sodium carbonate, potassium bicarbonate and potassium carbonate; and/or the acidic solution comprises: at least one of acetic acid, citric acid, carbonic acid and lactic acid.

In the technical scheme, the plurality of solutions to be prepared comprise alkaline solutions and acidic solutions, specifically, based on the fact that food materials are two or more, if the food materials are judged to contain not only alkaline solution degradable pesticides but also acidic solution degradable pesticides according to the searching result of the food material information in the database, alkaline solution spraying is firstly carried out according to the pesticide properties, then acidic solution spraying is carried out, and the effect of removing pesticide residues in the food materials is better. Further, the alkaline solution includes: at least one of baking soda, sodium carbonate, potassium bicarbonate and potassium carbonate; and/or the acidic solution comprises: at least one of acetic acid, citric acid, carbonic acid and lactic acid, and the acidic solution and/or the alkaline solution are prepared from harmless edible substances, so that the safety of the degradation solution is ensured.

In any of the above embodiments, preferably, the food material information includes: at least one of the food material type, the food material name and the weight of the food material; and/or pesticide information includes: at least one of pesticide type and pesticide photolysis sensitivity.

In the technical scheme, the food material information preferably comprises at least one of food material type, food material name and food material weight; and/or the pesticide information preferably includes at least one of a pesticide type, a pesticide photolytic sensitivity (i.e., a pesticide's sensitivity to ultraviolet light).

An embodiment of a third aspect of the present invention provides a computer device comprising: a memory configured to store executable instructions; the processor is configured to execute the stored instructions to implement the steps of the method for reducing pesticide residues on food materials provided in any of the foregoing embodiments, so that all technical effects of the method for reducing pesticide residues on food materials are provided, and are not described herein.

An embodiment of the fourth aspect of the present invention provides a computer readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for reducing pesticide residues on food materials provided in any of the foregoing embodiments, so that all technical effects of the method for reducing pesticide residues on food materials described above are provided, and are not described herein again.

An embodiment of the fifth aspect of the present invention provides a refrigeration device, including the apparatus for reducing pesticide residues on food materials provided in any one of the foregoing embodiments, or a computer device provided in any one of the foregoing embodiments, or a computer readable storage medium provided in any one of the foregoing technical solutions, so that all technical effects of the apparatus for reducing pesticide residues on food materials, the computer device, and the computer readable storage medium are provided, and are not described herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic flow chart of a method for reducing pesticide residues on food materials according to an embodiment of the present invention;

FIG. 2 shows a further schematic flow chart of a method for reducing pesticide residues on food materials according to an embodiment of the present invention;

FIG. 3 shows a further schematic flow chart of a method for reducing pesticide residues on food materials according to an embodiment of the present invention;

FIG. 4 is a schematic flow chart of a method for reducing pesticide residues on food materials according to an embodiment of the present invention;

FIG. 5 shows a flow diagram of a computer device provided by an embodiment of the invention.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

An apparatus for reducing pesticide residues on food materials, a method of reducing pesticide residues on food materials, a computer device, a computer-readable storage medium, and a refrigeration device provided according to embodiments of the present invention are described below with reference to fig. 1 to 5.

The device for reducing pesticide residues on food materials provided by the embodiment of the invention comprises: the acquisition device is used for acquiring food material information; the processing device is used for determining pesticide information corresponding to the food material information and determining a preset pH value corresponding to the pesticide information; the preparation device is used for preparing degradation solution according to a preset pH value; and the spraying device is used for spraying the degradation solution onto the food material.

In one embodiment of the present invention, preferably, the apparatus for reducing pesticide residues on food materials further comprises: the containing device is used for containing the solution to be prepared; the accommodating device is communicated with the blending device, and the solution to be blended enters the blending device from the accommodating device and is blended into degradation solution; the blending device is communicated with the spraying device, and the degradation solution enters the spraying device from the blending device and is sprayed on the food materials.

In this embodiment, the device for reducing pesticide residues on food materials further comprises a holding device for holding a solution to be prepared, wherein the holding device is communicated with the preparing device, and the solution to be prepared enters the preparing device from the holding device and is prepared into a degradation solution; specifically, the solution to be prepared can be introduced into the preparation device from the containing device, and the solution to be prepared is prepared into the degradation solution in the preparation device, for example, the solution to be prepared is an acidic solution with higher concentration or an alkaline solution with higher concentration, and the degradation solution is formed by adding water into the solution to be prepared for dilution and continuously stirring to enable the solution to reach a preset pH value. The preparation device is communicated with the spraying device, the degradation solution enters the spraying device from the preparation device and is sprayed on the food, specifically, after the degradation solution is prepared in the preparation device, the degradation solution is introduced into the spraying device communicated with the preparation device, and the degradation solution is sprayed on the food through the spraying device.

In one embodiment of the present invention, preferably, the apparatus for reducing pesticide residues on food materials further comprises: the pump body is used for pumping water into the blending device; the stirring device is used for stirring the solution to be prepared and the water in the preparation device; and the detection device is used for detecting the pH value of the solution to be prepared in the preparation device.

In this embodiment, the device for reducing pesticide residues on food materials further includes a pump body, a stirring device and a detection device, the pump body is used for pumping water into the phase blending device, the detection device is used for detecting the pH value of the solution to be prepared in the blending device, specifically, the solution to be prepared can be introduced into the blending device from the containing device, the solution to be prepared is an acidic solution with higher concentration or an alkaline solution with higher concentration, water is added into the solution to be prepared through the pump body for dilution, and the solution is continuously stirred through the stirring device to enable the solution to reach a preset pH value, so as to form a degradation solution, and in the process of preparing the degradation solution, the detection device can synchronously detect the pH value of the solution to be prepared in the blending device, so as to detect whether the degradation solution reaches the preset pH value. Preferably, the detection means may be an acidometer or pH paper or the like.

In one embodiment of the present invention, preferably, the apparatus for reducing pesticide residues on food materials further comprises: and the photodegradation device is used for emitting ultraviolet light and irradiating the food materials.

In this embodiment, the device for reducing pesticide residues on food materials further includes a photodegradation device for emitting ultraviolet light and irradiating the food materials, specifically, the photodegradation device is installed around the food materials, emits ultraviolet light to the food materials, starts working at a specified power according to the photosensitivity of the pesticide, and is turned off after the working photodecomposition time period T, so as to complete pesticide degradation.

In one embodiment of the invention, the photodegradation means is preferably an ultraviolet lamp.

In the embodiment, the photodegradation device is preferably an ultraviolet lamp, the food material is irradiated by ultraviolet light, the wavelength of the ultraviolet light is 200-400 nm, the ultraviolet light has the advantages of safety and environmental protection, the ultraviolet light has high energy, and the ultraviolet light can promote pesticide molecules to hydrolyze and enable chemical bonds to break after absorbing the energy of photons. Specifically, the ultraviolet lamp is a mercury-free ultraviolet lamp, such as an LED ultraviolet lamp, an electroluminescent ultraviolet lamp and the like, one or more ultraviolet lamps are arranged around the food material, ultraviolet light is emitted to the food material, and one or more ultraviolet lamps are turned on according to the photosensitivity of the pesticide, and turned off after the working photolysis time is long T, so that the pesticide degradation is completed. Preferably, the light power of the ultraviolet lamp is 0.05-200 mW/particle, the photodecomposition time length is related to the light power, the light sensitivity of the pesticide, the type of food materials and the weight of the food materials, and the photodecomposition time length is in the range of 0-24 hours.

In one embodiment of the present invention, preferably, the spraying device is: one or a combination of an ultrasonic spraying device and a mechanical pressing type spraying device.

In this embodiment, the spraying device is preferably one of an ultrasonic spraying device, a mechanical pressing type spraying device, or a combination of both, and can perform the function of spraying the degradation solution onto the food material.

Fig. 1 shows a flow diagram of a method of reducing food pesticide residues according to an embodiment of the present invention.

As shown in fig. 1, a method of reducing pesticide residues on food materials according to one embodiment of the present invention includes:

s102, obtaining food material information;

s104, determining pesticide information corresponding to the food material information;

s106, determining a preset pH value corresponding to pesticide information;

s108, controlling a blending device to prepare degradation solution according to a preset pH value;

s110, controlling the spraying device to spray the degradation solution on the food material.

Fig. 2 shows a further flow diagram of a method of reducing pesticide residues on food materials according to an embodiment of the present invention.

As shown in fig. 2, a method of reducing pesticide residues on food materials according to an embodiment of the present invention includes:

s202, obtaining food material information;

s204, determining pesticide information corresponding to the food material information;

s206, determining a preset pH value corresponding to pesticide information;

s208, selecting the type of the solution to be prepared according to a preset pH value;

s210, controlling the pump body to add water into the selected solution to be prepared until the pH value of the solution to be prepared reaches a preset pH value;

s212, determining a first working time length of the spraying device according to food material information;

s214, starting the spraying device and maintaining the first working time.

In this embodiment, the step of controlling the preparing means to prepare the degradation solution according to the preset pH value includes: according to the preset pH value, selecting the type of the solution to be prepared, and controlling the pump body to add water into the selected solution to be prepared until the pH value of the solution to be prepared reaches the preset pH value; specifically, the pH values of the solutions to be prepared are different, the optimal hydrolysis pH value of the pesticide, namely a preset pH value, can be found out from a database according to pesticide information, and the types of the solutions to be prepared, such as an acidic solution to be prepared or an alkaline solution to be prepared, are selected according to the preset pH value; further, the pump body is controlled to add water to the selected solution to be prepared until the pH value of the solution to be prepared reaches a preset pH value. For example, the solution to be prepared is an acidic solution with higher concentration or an alkaline solution with higher concentration, and the solution to be prepared is diluted by adding water into the solution to be prepared and is continuously stirred to reach a preset pH value, so as to form a degradation solution.

In this embodiment, during the process of adding water to the preset solution to be prepared by the pump body, the pH value of the preset solution to be prepared is detected until the pH value of the preset solution to be prepared reaches the preset pH value, and the pump body is controlled to stop adding water. Specifically, in the process of preparing the degradation solution, namely, in the process of adding water into the preset solution to be prepared by the pump body, synchronously detecting the pH value of the preset solution to be prepared, detecting whether the pH value of the preset solution to be prepared reaches the preset pH value, and if the pH value of the preset solution to be prepared reaches the preset pH value, controlling the pump body to stop adding water. Preferably, the pH value of the preset solution to be prepared can be detected by an acidometer or pH test paper or the like.

In this embodiment, first, a first operation period of the spraying device is determined according to the food material information, and then, the spraying device is turned on and maintained for the first operation period. Specifically, pesticides possibly contained in the food material are searched from a database based on the type, name and the like of the food material, and the weight of a degradation solution required for degrading the pesticides is determined according to the weight and the type of the food material, generally 2g to 100g, so that the first working time length of the spraying device is further determined.

Fig. 3 shows a further flow diagram of a method of reducing pesticide residues on food materials according to an embodiment of the present invention.

As shown in fig. 3, a method of reducing pesticide residues on food materials according to an embodiment of the present invention includes:

s302, obtaining food material information;

s304, pesticide information corresponding to the food material information is determined;

s306, determining a preset pH value corresponding to pesticide information;

s308, selecting the type of the solution to be prepared according to a preset pH value;

s310, controlling the pump body to add water into the selected solution to be prepared until the pH value of the solution to be prepared reaches a preset pH value;

s312, determining a first working time length of the spraying device according to the food material information;

s314, starting the spraying device and maintaining the first working time;

s316, determining the working power and the second working time length of the photodegradation device according to the pesticide information and the food material information;

and S318, controlling the photodegradation device to operate at the working power and maintaining the second working time.

In this embodiment, first, the working power and the second working time period of the photodegradation apparatus are determined according to the pesticide information and the food material information, and then, the photodegradation apparatus is controlled to operate at the working power and maintain the second working time period. Specifically, pesticides possibly contained in the food material are searched from a database based on the type, name and the like of the food material, and the working power and the second working time required by the photodegradation device for degrading the pesticides are determined according to the weight and the type of the food material, so that the photodegradation device is further controlled to operate at the working power and maintain the second working time.

In one embodiment of the present invention, preferably, the plurality of solutions to be formulated comprises: the pH value of the first solution to be prepared ranges from 2 to 7; the pH value of the second solution to be prepared ranges from 7 to 12. In one embodiment of the present invention, preferably, the plurality of solutions to be formulated comprises: an alkaline solution and an acidic solution; the alkaline solution comprises: at least one of baking soda, sodium carbonate, potassium bicarbonate and potassium carbonate; and/or the acidic solution comprises: at least one of acetic acid, citric acid, carbonic acid and lactic acid.

In this embodiment, the plurality of solutions to be prepared include an alkaline solution and an acidic solution, specifically, based on the case that the food materials are two or more, if it is determined that the food materials contain both an alkaline solution degradable pesticide and an acidic solution degradable pesticide according to the search result of the food material information from the database, then the alkaline solution is sprayed and then the acidic solution is sprayed according to the pesticide property, so that the effect of removing pesticide residues in the food materials is better. Further, the alkaline solution includes: at least one of baking soda, sodium carbonate, potassium bicarbonate and potassium carbonate; and/or the acidic solution comprises: at least one of acetic acid, citric acid, carbonic acid and lactic acid, and the acidic solution and/or the alkaline solution are prepared from harmless edible substances, so that the safety of the degradation solution is ensured.

In one embodiment of the present invention, preferably, the food material information includes: at least one of the food material type, the food material name and the weight of the food material; and/or pesticide information includes: at least one of pesticide type, pesticide hydrolysis pH value and pesticide photolysis sensitivity.

In this embodiment, the food material information preferably includes at least one of a kind of food material, a name of food material, and a weight of food material; and/or the pesticide information preferably includes at least one of a pesticide type, a pesticide photolytic sensitivity (i.e., a pesticide's sensitivity to ultraviolet light).

Fig. 4 shows a schematic flow chart of a method for reducing pesticide residues on food materials according to an embodiment of the present invention.

As shown in fig. 4, a method of reducing pesticide residues on food materials according to an embodiment of the present invention includes:

s401, placing food materials;

s402, identifying food materials and loading quality;

s404, searching a database to determine the type and the property of the pesticide;

s406, judging whether the pesticide is easier to hydrolyze under alkaline conditions, if so, executing S408, and if not, executing S410;

s408, preparing an alkaline solution;

s410, preparing an acidic solution;

s412, controlling the starting of the spraying device;

s414, controlling the spraying device to be closed;

s416, determining the power of the ultraviolet lamp and the photolysis time length T;

S418, photolyzing for T hours.

As shown in fig. 4, after the food is put in, the camera automatically recognizes or the user autonomously selects the type and name of the food. The identified food material may be a kind of food material, such as beans and grapes, or may be a specific name of a food material, such as green beans and grape.

The system searches the database according to the determined type or name of the food material, and analyzes the pesticide which is most likely to be contained in the food material. The database is based on a large number of market sample investigation and detection and a sampling report of the national food and drug administration, and is used for analyzing and summarizing the pesticide which is most likely to be contained or exceeds the standard in a certain food material, and the database has real-time performance and can be used for continuously updating the pesticide. As shown in table 1, table 1 shows the detection results of pesticide residues of spot check by the national food and drug administration from 12 months 2017 to 3 months 2018, and the detection results have a certain reference meaning, but the determination of the pesticide type is not completely based on table 1.

Table 1, 2017, 12-2018, 3-national pesticide residue extraction exceeding standard condition

Further, according to the determined hydrolysis and photolysis characteristics of pesticides, including optimal pH values for hydrolysis and sensitivity to ultraviolet light of different pesticides, triggering an ultrasonic or mechanical pressing type spraying device to spray a pH value solution required by hydrolysis; hydrolysis and photolytic properties of pesticides are based on a great deal of scientific research on various pesticide properties on various academic websites, such as the chinese knowledge network, web of science, etc.

Embodiment one:

500g of spinach is placed in a space of 45cm multiplied by 28cm multiplied by 18cm, an image recognition system detects that the food material is spinach, the quality is 500g, the food material is determined to be most likely to contain chlorpyrifos after searching a database, and the hydrolysis pH value of the chlorpyrifos is determined to be 10. Water was pumped into the sodium carbonate stock solution at pH 12 and stopped when the acidometer showed a pH of 10. The mechanical pressing type spraying device is controlled to start working, the spraying solution amount is 30g, after spraying is finished, three LED ultraviolet lamps (the light power of the ultraviolet lamps is 45 mw/particle, and the emitted ultraviolet wavelength is 280 nm) are controlled to be started, and pesticide is degraded for 2 hours. Through detection, the spinach before pesticide degradation contains chlorpyrifos 0.1mg/kg, and no pesticide residue is detected in the spinach after pesticide degradation.

Embodiment two:

1000g of corn is placed in a space of 35cm multiplied by 28cm multiplied by 18cm, a user inputs the corn as a food material manually, the system loads the corn with a mass of 1000g, the database is searched, the food material is determined to be most likely to contain carbosulfan, and the hydrolysis pH value of the carbosulfan is determined to be 3. Water was pumped into the pH 2 citric acid stock and stopped when the acidometer showed a pH of 3. The mechanical push type spraying device was controlled to start working, and the amount of the spraying solution was 35g. After the spraying is finished, six electroluminescent ultraviolet lamps (the light power of the ultraviolet lamps is 30 mw/particle, and the wavelength of the emitted ultraviolet light is 280 nm) are controlled to be started, and the pesticide is degraded for 1 hour. After detection, the corn before pesticide degradation contains carbosulfan 0.2mg/kg, and no pesticide residue is detected in the corn after pesticide degradation.

Embodiment III:

250g cowpea is placed in a space of 45cm multiplied by 35cm multiplied by 18cm, an image system identifies food materials as cowpea, the weight of the cowpea is loaded into the cowpea, after searching a database, the food materials are determined to be most likely to contain organophosphorus pesticides such as phorate, fenpyrad, and the like, and the hydrolysis pH value of the phorate and the fenpyrad is determined to be 11. Water was pumped into the potassium carbonate stock at pH 12 and stopped when the acidometer showed a pH of 11. The ultrasonic spray was controlled to start, and the amount of the spray solution was 10g. After spraying, four LED ultraviolet lamps (the light power of the ultraviolet lamps is 30 mw/particle, and the emitted ultraviolet wavelength is 365 nm) are started, and the pesticide is degraded for 3 hours. After detection, the cowpea contains 0.2mg/kg of organophosphorus pesticide before pesticide degradation, and no pesticide residue is detected in the cowpea after pesticide degradation.

As shown in fig. 5, an embodiment of a third aspect of the present invention provides a computer apparatus 1, comprising: a memory 12 configured to store executable instructions; the processor 14 is configured to execute the stored instructions to implement the steps of the method for reducing pesticide residues on food materials provided in any of the above embodiments, so that all technical effects of the method for reducing pesticide residues on food materials are provided, and are not described herein.

An embodiment of the fifth aspect of the present invention provides a refrigeration device, including the apparatus for reducing pesticide residues on food materials provided in any one of the embodiments, or the computer device provided in any one of the embodiments, or the computer readable storage medium provided in any one of the embodiments, so that all technical effects of the apparatus for reducing pesticide residues on food materials, the computer device, and the computer readable storage medium are provided, and are not described herein.

In the description of the present specification, the azimuth or positional relationship indicated by the terms "upper", "lower", etc., are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and are not indicative or implying that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for reducing pesticide residues on food materials, comprising:

the acquisition device is used for acquiring food material information;

the processing device is used for determining pesticide information corresponding to the food material information and determining a preset pH value corresponding to the pesticide information;

The preparation device is used for preparing degradation solution according to the preset pH value;

a spraying device for spraying the degradation solution onto the food material;

the containing device is used for containing the solution to be prepared;

the pump body is used for pumping water into the blending device;

the stirring device is used for stirring the solution to be prepared and the water in the preparation device;

the detection device is used for detecting the pH value of the solution to be prepared in the preparation device;

the containing device is communicated with the blending device, and the solution to be prepared enters the blending device from the containing device and is prepared into the degradation solution;

the preparation device is communicated with the spraying device, and the degradation solution enters the spraying device from the preparation device and is sprayed on the food.

2. The device for reducing pesticide residues on food materials of claim 1, further comprising:

and the photodegradation device is used for emitting ultraviolet light and irradiating the food materials.

3. The device for reducing pesticide residues on food materials according to claim 2, wherein,

the photodegradation device is an ultraviolet lamp.

4. The device for reducing pesticide residues on food materials according to claim 1 or 2, wherein,

The spraying device is as follows: one or a combination of an ultrasonic spraying device and a mechanical pressing type spraying device.

5. A method of reducing food pesticide residues, characterized in that it is applied to the device for reducing food pesticide residues as claimed in any one of claims 1 to 4, comprising:

acquiring food material information;

determining pesticide information corresponding to the food material information;

determining a preset pH value corresponding to the pesticide information;

controlling a blending device to prepare degradation solution according to the preset pH value;

and controlling a spraying device to spray the degradation solution onto the food material.

6. The method of claim 5, wherein the step of controlling the blending device to prepare the degradation solution according to the predetermined pH comprises:

according to the preset pH value, selecting the type of the solution to be prepared;

and controlling the pump body to add water into the selected solution to be prepared until the pH value of the solution to be prepared reaches the preset pH value.

7. The method of reducing pesticide residues on a food material of claim 6, wherein after the step of controlling the spraying device to spray the degradation solution onto the food material, further comprising:

Determining the working power and the second working time length of the photodegradation device according to the pesticide information and the food material information;

and controlling the photodegradation device to operate at the working power and maintaining the second working time.

8. The method for reducing pesticide residues on food materials according to claim 6, wherein,

the plurality of solutions to be formulated comprises:

a first solution to be prepared, wherein the pH value of the first solution to be prepared ranges from 2 to 7;

and the pH value of the second solution to be prepared ranges from 7 to 12.

9. The method for reducing pesticide residues on food materials according to claim 6, wherein,

the plurality of solutions to be formulated comprises: an alkaline solution and an acidic solution;

the alkaline solution comprises: at least one of baking soda, sodium carbonate, potassium bicarbonate and potassium carbonate; and/or

The acidic solution comprises: at least one of acetic acid, citric acid, carbonic acid and lactic acid.

10. The method for reducing pesticide residues on food materials according to any one of the claims 5 to 7,

the food material information includes: at least one of the food material type, the food material name and the weight of the food material; and/or

The pesticide information includes: at least one of pesticide type and pesticide photolysis sensitivity.

11. A computer device, the computer device comprising:

a memory configured to store executable instructions;

a processor configured to execute stored instructions to carry out the steps of the method of reducing food material pesticide residues as claimed in any one of claims 5 to 9.

12. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, carries out the steps of the method of reducing pesticide residues on food materials as claimed in any one of claims 5 to 9.

13. A refrigeration appliance, comprising:

a device for reducing pesticide residues on food materials as claimed in any one of claims 1 to 4; or (b)

The computer device of claim 11; or a computer readable storage medium as claimed in claim 12.