Pulping method and pulping apparatus

Abstract

The application discloses a pulping method and a pulping device, and belongs to the technical field of pulping device control. The method comprises the following steps: in the enzyme inactivation stage, a first pulsed electric field is applied to the pulping cavity by a pulsed electric field module to inactivate the enzymes in the food materials in the pulping cavity; the liquid level in the pulping cavity is higher than the surface of the food materials; in the pulping stage, a stirring module is controlled to stir the liquid and the enzyme-inactivated food materials in the pulping cavity to obtain a slurry; in the case of the pulping stage, the pulsed electric field module is controlled to be turned on at least once in response to a heating and boiling instruction, so that the temperature of the pulping cavity in the pulping stage is higher than the temperature of the pulping cavity in the enzyme inactivation stage. The above scheme utilizes the pulsed electric field to inactivate the enzymes in the cooking process, achieves the effect of rapid enzyme inactivation, reduces the influence on the flavor of the slurry, and utilizes the pulsed electric field to act on the pulping materials to make them self-heat when heating and boiling, which is beneficial to improving the heating efficiency and boiling effect of pulping.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pulping equipment control, and particularly relates to a pulping method and a pulping device. BACKGROUND

[0002] The most commonly used function of a pulping device such as a wall-breaking machine is to make soy milk and fruit and vegetable juice. When making soy milk, because there is trypsin inhibitor in the soy milk, in order to avoid the user from having diarrhea, a very long cooking time is required. When making fruit and vegetable juice, because there are enzymes in the food, the fruit and vegetable juice is prone to browning.

[0003] In related technologies, a high-temperature enzyme inactivation scheme is usually adopted, for example, enzymes are inactivated by steam, but the soy milk and fruit and vegetable juice after steam cooking have a steaming taste, which affects the flavor of the pulp such as soy milk and fruit and vegetable juice. Secondly, the conventional pulping device uses a heat conduction heating method such as a heating disc to cook the food, which is easily limited by the rated power of heating, and under the condition of high-power rapid heating, it is easy to cause the bottom to be burnt, and low-power heating cannot achieve rapid boiling, and the pulping effect is not good. SUMMARY

[0004] Embodiments of the present application provide a pulping method and a pulping device, which can at least to some extent inactivate enzymes by means of a pulsed electric field, reducing the influence on the flavor of the pulp such as soy milk and fruit and vegetable juice.

[0005] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0006] According to a first aspect of the embodiments of the present application, a pulping method is provided, applied to a pulping device, the pulping device comprising a pulping cavity, a pulsed electric field module and a stirring module, the pulsed electric field module and the stirring module being located in the pulping cavity, the pulping method comprising: in an enzyme inactivation stage, controlling the pulsed electric field module to apply a first pulsed electric field to the pulping cavity to inactivate enzymes of food materials in the pulping cavity; wherein the liquid level in the pulping cavity is higher than the surface of the food materials; in a pulping stage, controlling the stirring module to stir the liquid and the inactivated food materials in the pulping cavity to obtain a pulp; in the case of being in the pulping stage, in response to a heating boiling instruction, controlling the pulsed electric field module to be turned on at least once, so that the temperature of the pulping cavity in the pulping stage is higher than the temperature of the pulping cavity in the enzyme inactivation stage.

[0007] In some embodiments, the electric field strength and the pulse width of the first pulsed electric field correspond to E1 kilovolts per centimeter and W1 microseconds, and the pulse frequency of the first pulsed electric field corresponds to the working frequency F1 of the pulsed electric field per minute, wherein E1≧0.5 and 1000<E1×F1×W1<5000, or E1≧0.5 and 3000<E1×F1×W1<20000.

[0008] In some embodiments, the pulse electric field module comprises a first electrode and a second electrode arranged in relative spacing, and the electric field strength is obtained by the following steps: obtaining a voltage difference between the first electrode and the second electrode and a shortest distance; dividing the voltage difference by the shortest distance to obtain the electric field strength.

[0009] In some embodiments, after the step of controlling the pulse electric field module to apply the first pulse electric field to the pulping cavity, the pulping method further comprises: obtaining a first temperature in the pulping cavity during an enzyme inactivation stage; and stopping the application of the first pulse electric field when the first temperature is greater than a first preset temperature; and / or controlling the rotation speed of the stirring module to be less than 1000 r / min during the enzyme inactivation stage.

[0010] In some embodiments, after the enzyme inactivation stage, the pulping method further comprises: controlling the liquid in the pulping cavity to be discharged; or the pulping device further comprises a liquid inlet module and a liquid discharge module, and the pulping method comprises: controlling the liquid discharge module to discharge the liquid in the pulping cavity during a water replacement stage before the pulping stage; controlling the liquid inlet module to inject liquid into the pulping cavity before the pulping stage, and obtaining the liquid amount in the pulping cavity; and stopping the injection of liquid into the pulping cavity when the liquid amount in the pulping cavity reaches a first preset liquid amount, and entering the pulping stage.

[0011] In some embodiments, the pulping device further comprises a heating module, and after the enzyme inactivation stage, the pulping method further comprises: controlling the heating module to be turned on during a boiling stage, and obtaining a second temperature in the pulping cavity; and controlling the heating module to remain turned on for a first preset time length and then turned off when the second temperature reaches a second preset temperature.

[0012] In some embodiments, in the case of being in the pulping stage, in response to a heating boiling instruction, the step of controlling the pulse electric field module to be turned on at least once comprises: in response to the heating boiling instruction, controlling the pulse electric field module to apply a second pulse electric field to the pulping cavity, and obtaining a third temperature in the pulping cavity, wherein the electric field parameter of the second pulse electric field is greater than the electric field parameter of the first pulse electric field; and controlling the pulse electric field module to remain turned on for a second preset time length and then turned off when the third temperature reaches a third preset temperature.

[0013] In some embodiments, before the enzyme inactivation stage, the pulping method further comprises: controlling the stirring module to stir the liquid in the pulping cavity during a preservation stage; controlling the stirring module to stop stirring when the stirring time of the liquid in the pulping cavity reaches a third preset time length; and controlling the pulse electric field module to apply a third pulse electric field to the pulping cavity for sterilization treatment of the food material.

[0014] In some embodiments, the third pulsed electric field has an electric field strength and a pulse width corresponding to E3 kV / cm and W3 μs, and a pulse frequency corresponding to F3, which is the number of operating times of the pulsed electric field per minute, wherein 0.5 < E3 < 5, 1 < W3 < 100, and 0 < F3 < 2000.

[0015] In some embodiments, the pulping device further comprises a liquid inlet module and a liquid outlet module, and the pulping method further comprises, after the pulping stage, in the cleaning stage, controlling the liquid inlet module to inject liquid into the pulping cavity, and controlling the stirring module to stir the liquid in the pulping cavity; and in a case where a stirring duration of the liquid in the pulping cavity reaches a fourth preset duration, controlling the liquid outlet module to discharge the liquid in the pulping cavity.

[0016] In some embodiments, the pulping device further comprises a heating module, a liquid inlet module, and a liquid outlet module, and the pulping method further comprises, after the pulping stage, in the cleaning stage, controlling the liquid inlet module to inject liquid into the pulping cavity, and controlling the heating module to be turned on and obtaining a fourth temperature in the pulping cavity; in a case where the fourth temperature in the pulping cavity reaches a fourth preset temperature, controlling the pulsed electric field module to apply a third pulsed electric field to the pulping cavity for sterilization treatment; and in a case where an application duration of the third pulsed electric field reaches a fifth preset duration, controlling the liquid outlet module to discharge the liquid in the pulping cavity.

[0017] In some embodiments, after the liquid outlet module discharges the liquid in the pulping cavity, the pulping method further comprises, in the cleaning stage, controlling the liquid inlet module to inject liquid into the pulping cavity; controlling the stirring module to stir the liquid in the pulping cavity; and controlling the heating module to be turned on to heat the liquid in the pulping cavity to a fifth preset temperature, wherein the fifth preset temperature is greater than the fourth preset temperature; and in a case where a turning-on duration of the heating module reaches a sixth preset duration, controlling the liquid outlet module to discharge the liquid in the pulping cavity.

[0018] According to a second aspect of the embodiments of the present application, a pulping device is provided, comprising a processor and a memory, the memory storing computer program instructions capable of being executed by the processor, and the processor, when executing the computer program instructions, implements the steps of the method according to any one of the first aspect.

[0019] According to a third aspect of the embodiments of the present application, a computer readable storage medium is provided, the computer readable storage medium storing computer program instructions, and the computer program instructions, when executed by a processor, cause the processor to implement the steps of the method according to any one of the first aspect.

[0020] According to a fourth aspect of the embodiments of the present application, a computer program product is provided, comprising a computer program, which, when executed by a processor, causes the processor to implement the steps of the method according to any one of the first aspect.

[0021] In the present application, in the enzyme inactivation stage, the pulse electric field module is controlled to apply a first pulse electric field to the pulp-making cavity to perform enzyme inactivation treatment on the food materials in the pulp-making cavity; wherein the liquid level in the pulp-making cavity is higher than the surface of the food materials; in the pulp-making stage, the stirring module is controlled to stir the liquid and the enzyme-inactivated food materials in the pulp-making cavity to obtain the pulp liquid; in the case of being in the pulp-making stage, in response to the heating and boiling instruction, the pulse electric field module is controlled to be turned on at least once, so that the temperature of the pulp-making cavity in the pulp-making stage is higher than the temperature of the pulp-making cavity in the enzyme inactivation stage. The technical solution provided in the present application can utilize the pulse electric field to inactivate the enzyme during the cooking process, achieve the effect of rapid enzyme inactivation, reduce the influence on the flavor of the pulp liquid, and utilize the pulse electric field to act on the food pulp during heating and boiling to make it self-heat, which is beneficial to improve the heating efficiency and boiling effect of the pulp-making.

[0022] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application. It is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0024] Figure 1 A functional module schematic diagram of a pulp-making device according to an embodiment of the present application is shown;

[0025] Figure 2 A flowchart of a pulp-making method according to an embodiment of the present application is shown;

[0026] Figure 3 Another functional module schematic diagram of a pulp-making device according to an embodiment of the present application is shown;

[0027] Figure 4 A flowchart of the preservation stage of a pulp-making method according to an embodiment of the present application is shown;

[0028] Figure 5 A working demonstration diagram of a pulp-making device in the preservation stage is shown; Figure 4

[0029] Figure 6 ​A flowchart of a cleaning stage of a pulping method according to an embodiment of the present application is shown.

[0030] Figure 7 A block diagram of a pulping device according to an embodiment of the present application is shown.

[0031] Figure 8 A structural diagram of a pulping apparatus according to an embodiment of the present application is shown.

[0032] Explanation of reference numerals:

[0033] 10 - pulping cavity; 21 - pulsed electric field control unit; 22 - first electrode; 23 - second electrode; 30 - stirring module; 40 - liquid inlet module; 50 - liquid outlet module; 60 - heating module; 70 - grid. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0035] In addition, the described features, structures or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to give a full understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be used. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid obscuring the aspects of the present application.

[0036] The block diagrams shown in the drawings are only functional entities, which do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0037] The flowcharts shown in the drawings are only exemplary illustrations, which do not necessarily include all contents and operations / steps, and are not necessarily executed in the described order. For example, some operations / steps can be further decomposed, and some operations / steps can be combined or partially combined, so that the actual execution order can be changed according to the actual situation.

[0038] It should also be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such uses of these terms can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described.

[0039] To enable those skilled in the art to better understand this application, firstly, in conjunction with Figure 1 A brief description of the application scenarios involved in this application is provided.

[0040] Figure 1 A schematic diagram of a functional module of a pulping apparatus according to an embodiment of this application is shown. Figure 1 As shown, the pulping equipment includes a pulping chamber 10, a pulsed electric field module (not shown), and a stirring module 30. The pulsed electric field module includes a pulsed electric field control unit 21, a first electrode 22, and a second electrode 23. The first electrode 22, the second electrode 23, and the stirring module 30 are all located within the pulping chamber 10, with one electrode positive and the other negative, controlled by the pulsed electric field control unit 21. These two electrodes are in contact with the food and water within the pulping chamber 10, allowing the food and water to act as conductive media to form a pulsed electric field. In this embodiment, the pulping equipment undergoes at least three stages during the cooking process: a preparation stage, an enzyme inactivation stage, and a pulping stage. After the preparation stage is completed, the user will start the cooking program through the pulping equipment. In response to the start cooking command sent by the user, the pulping equipment enters the enzyme inactivation stage and controls the pulse electric field module to apply the first pulse electric field to the pulping chamber 10 to inactivate the enzymes in the pulping chamber 10. After the enzyme inactivation stage reaches the set time, the pulping stage can be entered, and the stirring module 30 is controlled to stir the liquid and the enzyme-inactivated ingredients in the pulping chamber 10 to obtain a pulp. In response to the heating and cooking command, the pulse electric field module is controlled to be turned on at least once so that the temperature in the pulping chamber during the pulping stage is higher than the temperature in the pulping chamber during the enzyme inactivation stage. This solution addresses the issues of long inactivation times and negative impacts on flavor of traditional high-temperature enzyme inactivation methods (including boiling and steaming). It proposes a pulsed electric field inactivation method during cooking. A strong, instantaneous pulsed electric field is applied to the pulping chamber 10 during cooking, causing the enzymes and other charged proteins in the food to be instantly deactivated under the influence of the strong pulsed electric field. This achieves rapid enzyme inactivation with minimal impact on the flavor of the pulp. Furthermore, during the pulping stage, if a heating / cooking command is received, heating / cooking is performed using the pulsed electric field instead of a traditional heating module. This avoids the limitations of the heating module's rated power, enabling rapid heating and improving the cooking effect of the pulp.

[0041] Figure 2A flowchart of a pulping method according to an embodiment of the present application is shown. As shown in Figure 2 A pulping method is provided, which can be applied to a pulping device as shown in Figure 1 The method can include the following steps:

[0042] In step 201, in the enzyme inactivation stage, the pulsed electric field module is controlled to apply a first pulsed electric field to the pulping cavity to inactivate the enzymes in the food materials in the pulping cavity; wherein the liquid level in the pulping cavity is higher than the surface of the food materials.

[0043] In step 202, in the pulping stage, the stirring module is controlled to stir the liquid and the inactivated food materials in the pulping cavity to obtain the slurry; in the case of being in the pulping stage, the pulsed electric field module is controlled to be turned on at least once in response to the heating and boiling instruction, so that the temperature in the pulping cavity in the pulping stage is higher than the temperature in the pulping cavity in the enzyme inactivation stage.

[0044] The pulping device can be a food processor, a blender or other device with pulping function, and the food materials can be fruits and vegetables, soybeans or other grains, which are not limited by the embodiments of the present application.

[0045] As described above, the pulping device needs to at least go through three stages in the cooking process: preparation stage, enzyme inactivation stage and pulping stage. Generally, at least three stages are needed when making fruit and vegetable juice; and at least four stages are needed when making soy milk, i.e. preparation stage, enzyme inactivation stage, boiling stage and pulping stage. The pulping device is pre-set with the working time of each stage except the preparation stage, and switches to the next stage after the corresponding working time of each stage ends.

[0046] In the preparation stage, the user can put the food materials (apples, peaches and other easily browning fruits and vegetables) and the liquid into the pulping cavity, so that the liquid covers the food materials, and start the cooking program. Of course, in the preparation stage, the user can also use the pulping device to preserve the food materials before starting the cooking program.

[0047] The pulping device enters the enzyme inactivation stage in response to the user's start cooking instruction, and controls the pulsed electric field module to apply a first pulsed electric field to the pulping cavity. It should be noted that the types of enzymes in different food materials are different, and therefore the electric field parameters of the first pulsed electric field to be applied are also different. The electric field parameters include at least one of electric field intensity, pulse frequency, pulse width and electric field energy, wherein the electric field energy is the product of electric field intensity, pulse frequency and pulse width.

[0048] The electric field intensity refers to the electric force per unit charge in the electric field, the pulse frequency refers to the working times of the pulse electric field per unit time, the pulse width refers to the time length of each working of the pulse electric field, and the electric field energy is the product of the electric field intensity, the pulse frequency and the pulse width.

[0049] In some embodiments, the electric field intensity and the pulse width of the first pulse electric field correspond to E1 kilovolt per centimeter and W1 microsecond, the pulse frequency of the first pulse electric field corresponds to the working times F1 of the pulse electric field per minute, for fruit and vegetable food materials, E1>0.5 and 1000<E1xF1xW1<5000, and for soybean food materials, E1>0.5 and 3000<E1xF1xW1<20000.

[0050] By applying the first pulse electric field with different electric field parameters for different types of food materials, the control accuracy of the enzyme inactivation stage is improved.

[0051] In the implementation process, the electric field parameters can be obtained by measuring the related parameters through an oscilloscope and calculating the related parameters. In some embodiments, the electric field intensity can be obtained by the following steps: obtaining the voltage difference and the shortest distance between the first electrode and the second electrode; dividing the voltage difference by the shortest distance to obtain the electric field intensity.

[0052] When the voltage difference between the first electrode and the second electrode is an alternating voltage, the Y-axis input coupling switch of the oscilloscope can be set to the “AC” position to display the alternating component of the input waveform. If the frequency of the alternating signal is very low, the Y-axis input coupling switch can be set to the “DC” position. The measured waveform is moved to the center position of the oscilloscope screen, and the measured waveform is controlled within the range of the effective working area of the screen by the “V / div” switch. The degree H of the entire waveform in the Y-axis direction is read according to the graduation of the coordinate scale. The peak-to-peak value VP-P of the measured voltage can be equal to the product of the indicated value of the “V / div” switch and the degree H. If the voltage difference is measured by a probe, the attenuation of the probe should be taken into account, that is, the product of the indicated value and the degree H is multiplied by 10.

[0053] When the voltage difference between the first electrode and the second electrode is a direct current voltage, the Y-axis input coupling switch of the oscilloscope can be set to the “ground” position, and the trigger mode switch is set to the “automatic” position, so that the screen displays a horizontal scanning line, which is the zero level line. The Y-axis input coupling switch is set to the “DC” position, and the measured voltage is added. At this time, the scanning line produces a jump displacement H in the Y-axis direction, and the measured voltage is the product of the indicated value of the “V / div” switch and H.

[0054] In some embodiments, the pulse frequency can be obtained by the following steps: measuring the time T of each pulse cycle by using an oscilloscope, and obtaining the pulse frequency by using the formula F=1 / T.

[0055] In some embodiments, the pulse width can be obtained by the following steps: connecting the measured pulse signal: connecting the measured pulse signal to the input channel of the oscilloscope; setting the time reference: according to the expected range of the pulse width, selecting the appropriate time reference to ensure that the rising edge and falling edge of the pulse signal can be clearly displayed on the oscilloscope screen; set the trigger condition: select the appropriate trigger type and trigger level to ensure that the oscilloscope can accurately capture the pulse signal; use the measurement function: use the measurement function of the oscilloscope, such as cursor measurement or automatic measurement, to move the measurement cursor to the rising edge and falling edge of the pulse signal, and the oscilloscope will automatically calculate and display the measured value of the pulse width.

[0056] In some embodiments, in the enzyme inactivation stage, after the control pulse electric field module applies the first pulse electric field to the pulp-making cavity, the first temperature in the pulp-making cavity can also be obtained; if the first temperature is greater than the first preset temperature, the application of the first pulse electric field is stopped.

[0057] Wherein, the first temperature can be the temperature of the liquid in the pulp-making cavity, and the first preset temperature can be set to a relatively low temperature, for example, 40℃. It can be understood that, with the passage of time, the first temperature in the pulp-making cavity will rise under the action of the first pulse electric field, and by stopping the application of the first pulse electric field when the first temperature is greater than the first preset temperature and reapplying the first pulse electric field when the first temperature is less than the first preset temperature, the fruit and vegetable juice produced can be kept at the first preset temperature.

[0058] In some embodiments, in the enzyme inactivation stage, after the control pulse electric field module applies the first pulse electric field to the pulp-making cavity, the speed of the stirring module can also be controlled to be zero or less than 1000r / min.

[0059] It can be understood that, in the enzyme inactivation stage, the stirring module can not be stirred, or it can be stirred. If stirring is required, the stirring module needs to be controlled to run at a low speed to avoid cavitation caused by stirring. These cavitations are not conductive and will cause the current path to be longer, thereby affecting the enzyme inactivation effect of the pulse electric field.

[0060] In the pulp-making stage, the stirring module is turned on, and at this time, the stirring module needs to be controlled to run at a high speed to crush the liquid and the enzyme-inactivated food material in the pulp-making cavity to obtain the slurry. In the pulp-making stage, if fruit and vegetable juice is being made, no heating and boiling instruction will be received, and if soy milk is being made, a heating and boiling instruction will be received. At this time, the pulse electric field module needs to be controlled to be turned on at least once to heat and boil the slurry.

[0061] In some embodiments, in response to the heating and boiling instruction, the pulse electric field module can be controlled to apply a second pulse electric field into the pulping cavity, and a third temperature in the pulping cavity is obtained, wherein the electric field parameter of the second pulse electric field is greater than the electric field parameter of the first pulse electric field; in the case that the third temperature reaches a third preset temperature, the pulse electric field module is controlled to keep on for a second preset time length and then turn off. Specifically, the pulse electric field module realizes non-contact heating of the pulping target food material through the radiation energy generated by the set high-power pulse electric field. When the second pulse electric field passes through the liquid and food material in the pulping cavity, it will cause the acceleration and variable motion of the internal electrons of the food material in the liquid, and the interaction between the electrons and the molecules will cause the vibration and friction inside the molecules, thereby increasing the internal temperature of the food material to realize self-heating, which is only limited to the electric conduction effect of the food material and the liquid itself, and is not limited to the heating and temperature rising efficiency and working power of the original heating module. Therefore, in the pulping stage, if the user selects a pulping program including a heating and boiling process, a heating and boiling instruction is output, and the pulse electric field module applies a second pulse electric field to the pulping food material and liquid in response to the heating and boiling instruction, promotes the self-heating of the pulp, and cooperates with the stirring control of the crushing and pulping to realize rapid heating while avoiding the phenomenon of high-temperature overheating and scorched bottom caused by power control temperature inaccuracy or power delay when the pulp is stuck to the wall, thereby greatly improving the pulping flavor and boiling effect. Secondly, the use of pulse electric field can directly electrocute the surface of the food material and act on the core of the food material, which can reduce the stirring frequency and achieve better crushing effect and rapid heating and pulping.

[0062] In the implementation process, the third preset temperature can be set to a relatively high temperature according to the actual situation, which can be 90℃, 95℃, etc., and the present application does not limit this.

[0063] It can be understood that, since the pulse electric field can damage the cell membrane of the food material, water can more easily penetrate the cell membrane, so that the time for the food material to be cooked thoroughly can be shortened. Therefore, in the process of using the pulse electric field module for boiling, the second preset time length can be shorter than the time length of traditional boiling using a heating module.

[0064] The values of the electric field strength and the pulse width of the second pulse electric field correspond to E2 kilovolts per centimeter and W2 microseconds, the value of the pulse frequency of the second pulse electric field is the working frequency F2 of the pulse electric field per minute, E1≧0.2 and 10000<E2×F2×W2<30000.

[0065] It should be noted that, because the pulse electric field module is used for boiling, the value of the electric field parameter of the second pulse electric field applied by the pulse electric field module into the pulping cavity is greater than the value of the electric field parameter of the first pulse electric field, that is, the pulse electric field in the pulping cavity is stronger, so as to provide more heat energy, realize rapid heating and boiling, accelerate the time for the food material to be cooked, and improve the boiling effect of the pulp.

[0066] The following introduces the process flow of the method for making non-browning fruit and vegetable juice by the pulping method according to the embodiments of the present application:

[0067] In the preparation stage, the user puts the fruit and vegetable prone to browning and water into the pulping cavity, so that the water covers the fruit and vegetable, and starts the cooking program.

[0068] In the enzyme inactivation stage, the pulse electric field module is controlled to apply a first pulse electric field to the pulping cavity, the electric field strength E1 of the first pulse electric field is greater than or equal to 0.5 KV / cm, the electric field energy E1xF1xW1 is in the range of 1000-5000, the processing time is t1, and t1 is less than or equal to 10 minutes, and the optimal processing time is 1-5 minutes. With the time migration, if the first temperature in the pulping cavity exceeds 40℃, the pulse electric field module is turned off until the first temperature is lower than 40℃ before being turned on. In the process of turning on the pulse electric field module, the stirring module is not turned on or the rotating speed after being turned on is less than 1000 r / min.

[0069] In the pulping stage, the pulse electric field module is turned off, and the stirring module is controlled to stir the water and the fruit and vegetable after enzyme inactivation in the pulping cavity to obtain the fruit and vegetable juice.

[0070] The above process flow can solve the problem of browning of fruit and vegetable in the process of high-speed stirring by inactivating the enzyme in advance, and the temperature of the fruit and vegetable juice made is lower than 40℃.

[0071] The embodiments of the present application control the pulse electric field module to apply a first pulse electric field to the pulping cavity to inactivate the enzyme of the food material in the pulping cavity in the enzyme inactivation stage, wherein the liquid level in the pulping cavity is higher than the surface of the food material; control the stirring module to stir the liquid and the food material after enzyme inactivation in the pulping cavity to obtain the slurry in the pulping stage; and in the case of the pulping stage, in response to the heating and boiling instruction, control the pulse electric field module to be turned on at least once, so that the temperature of the pulping cavity in the pulping stage is higher than the temperature of the pulping cavity in the enzyme inactivation stage. The technical solution provided by the present application can inactivate the enzyme by using the pulse electric field in the cooking process, achieve the effect of rapid enzyme inactivation, reduce the influence on the flavor of the slurry, and use the pulse electric field for heating and boiling, which directly acts on the food material to make it self-heat, which is beneficial to improve the heating efficiency and boiling effect of the pulping.

[0072] As described above, when making soy milk, at least four stages need to be experienced: the preparation stage, the enzyme inactivation stage, the boiling stage and the pulping stage, wherein the steps of the preparation stage, the enzyme inactivation stage and the pulping stage have been described in detail, and the boiling stage will be mainly introduced below.

[0073] In some embodiments, the pulping device further comprises a heating module, and the decoction can be performed by using the heating module. In the decoction stage, the heating module can be controlled to be turned on, and the second temperature in the pulping cavity can be obtained; when the second temperature reaches the second preset temperature, the heating module can be controlled to be kept on for a first preset time length and then turned off.

[0074] In the implementation process, the second preset temperature can be set to a relatively high temperature, for example, 90℃. The first preset time length can be set to a relatively long time, for example, 5-25min.

[0075] The following introduces the process flow of the quick soybean milk made by the pulping method according to the embodiments of the present application.

[0076] In the preparation stage, the user puts soybeans and water into the pulping cavity, makes the water cover the soybeans, and starts the cooking program.

[0077] In the enzyme inactivation stage, the pulsed electric field module is controlled to apply a first pulsed electric field to the pulping cavity, the electric field strength E1 of the first pulsed electric field is greater than or equal to 0.5KV / cm, the electric field energy E1xF1xW1 is in the range of 3000-20000, and the processing time length is t1, wherein t1 is less than or equal to 10min, and the optimal processing time length is 1-5min. In the process of turning on the pulsed electric field module, the stirring module is not turned on or is turned on at a speed less than 1000r / min. Because the soybean milk needs to be cooked later, the temperature control requirement for this stage is not high, and the value of the electric field parameter of the first pulsed electric field can be selected to be larger in the above range.

[0078] In the decoction stage, the heating module is controlled to increase the temperature to above 90℃, and the cooking time t2 is maintained, wherein t2 is in the range of 5-25min.

[0079] In the pulping stage, the stirring module is controlled to stir the water and the enzyme-inactivated soybeans in the pulping cavity to obtain soybean milk, and the pulsed electric field module is controlled to apply a second pulsed electric field to the pulping cavity, the electric field strength E2 of the second pulsed electric field is greater than or equal to 0.2KV / cm, E2xF2xW2 is in the range of 10000-30000, and E2 is greater than or equal to E1, and E2xF2xW2 is greater than or equal to E1xF1xW1. With the time migration, when the temperature is greater than or equal to 95℃, the pulsed electric field module is turned off after maintaining the cooking time t3.

[0080] The above process flow can shorten the cooking time of the soybean milk to less than 35min, and the time is not greatly affected by the capacity of the soybean milk.

[0081] Figure 3 Another functional module schematic diagram of the pulping device according to the embodiments of the present application is shown. As shown in FIG. 6, the pulping device comprises a heating module 61, a stirring module 62, a pulsed electric field module 63, and a control module 64. Figure 3As shown, the pulping device can further include a liquid inlet module 40 and a liquid outlet module 50. After the enzyme inactivation stage, the liquid in the pulping cavity 10 can be controlled to be discharged, or, in the water replacement stage before the pulping stage, the liquid outlet module 50 can be controlled to discharge the liquid in the pulping cavity 10; before the pulping stage, the liquid inlet module 40 is controlled to inject liquid into the pulping cavity 10, and the amount of liquid in the pulping cavity 10 is obtained; when the amount of liquid in the pulping cavity 10 reaches a first preset liquid amount, the injection of liquid into the pulping cavity 10 is stopped, and the pulping stage is entered.

[0082] In the preparation stage, the pulping device can first control the liquid inlet module to inject liquid into the pulping cavity so that the liquid covers the food materials in response to the cooking start instruction. In the enzyme inactivation stage, the working principle of the pulsed electric field is to use a short high-intensity electric field pulse to process the food materials. The voltage difference applied to the two electrodes is higher than the existing mains voltage. Through short-time high-voltage electric field processing, the effects that cannot be achieved by long-time electric field processing such as ohmic heating are achieved. The pulsed electric field can generate enough energy to destroy the cell membrane, especially for charged substances such as proteins. By destroying the quaternary structure, it can quickly make them lose activity. Most of the enzymes are active proteins. In the enzyme inactivation stage, the cell membrane of the food materials will be destroyed, and the water-soluble harmful substances such as purines in the cells are more easily precipitated into the liquid.

[0083] After the end of the enzyme inactivation stage, the water replacement stage can be entered. In the water replacement stage, the liquid in the pulping cavity is discharged, and the food materials remain in the pulping cavity. After the liquid outlet module is closed, the liquid inlet module re-injects liquid. After the liquid injection is completed, the pulping stage is entered again. In this way, the water-soluble harmful substances such as purines can be physically separated, and the purine content in the pulp liquid can be reduced by 30-70%, making it more suitable for people at high risk of uric acid to drink.

[0084] It can be understood that fruits and vegetables will be contaminated with bacteria and sludge during storage and sale, and subsequent spoilage and deterioration will occur. The conventional method of preserving fruits and vegetables is mainly low-temperature storage, such as using a refrigerator for storage. However, low-temperature storage does not have a sterilization effect, but rather inhibits the growth of bacteria to preserve freshness. Based on this, the present application provides a pulping method, which performs a preservation treatment on the food materials before the enzyme inactivation stage.

[0085] Figure 4 A flowchart of the preservation stage of the pulping method according to the present application is shown. Figure 4 As shown, the preservation stage of the pulping method can include the following steps:

[0086] Step 401, in the preservation stage, the stirring module is controlled to stir the liquid in the pulping cavity;

[0087] Step 402, when the stirring duration of the liquid in the pulping cavity reaches the third preset duration, control the stirring module to stop stirring;

[0088] Step 403, control the pulsed electric field module to apply a third pulsed electric field to the pulping cavity to sterilize the food materials in the pulping cavity.

[0089] Figure 5 Shows Figure 4 a working demonstration diagram of the pulping equipment in the fresh-keeping stage. As Figure 5 shown, the food materials can be placed on the grid 70 in the pulping cavity 10, and the stirring module 30 is controlled to stir the liquid in the pulping cavity 10 to wash the food materials with the liquid. In the implementation process, the rotation speed range of the stirring module 30 can be 300 - 3000 r / min, and the stirring duration range of the stirring module 30 can be 5 - 30 min. After the washing is completed, control the stirring module 30 to stop stirring, and control the pulsed electric field module to apply a third pulsed electric field to the pulping cavity 10 to sterilize the food materials in the pulping cavity 10.

[0090] In some embodiments, the values of the electric field strength and pulse width of the third pulsed electric field are correspondingly E3 kV / cm and W3 μs, and the value of the pulse frequency of the third pulsed electric field is the number of working times F3 per minute of the pulsed electric field, where 0.5 < E3 < 5, 1 < W3 < 100, 0 < F3 < 2000. The duration of applying the third pulsed electric field once can be between 0.5 - 5 min.

[0091] It should be noted that the electric field strength required to rupture the cell membrane is at least 0.5 KV / cm, but when the electric field strength is greater than 5 KV / cm, it is easy to affect the cells of the food materials. Therefore, the value of the electric field strength of the third pulsed electric field can be controlled between 0.5 - 5 KV / cm.

[0092] In the fresh-keeping stage, the stirring module and the pulsed electric field module are alternately turned on, and sterilization is carried out under the condition of static water flow, which can prevent the generation of cavitation by the bubbles generated by stirring. These cavitations are non-conductive and will cause the current passing path to become longer, thereby affecting the sterilization effect of the pulsed electric field. In the implementation process, the on-off cycle period of the stirring module and the pulsed electric field module ≥ 1 time, and the total working duration of the two can be between 5 - 30 min.

[0093] After the sterilization is completed, the liquid discharge module can also be controlled to be turned on to discharge the liquid in the pulping cavity. At this time, the pulping cavity is in a sterile environment, and the food materials can continue to be placed in it for storage.

[0094] By performing low-temperature cleaning and sterilization on the food materials in the fresh-keeping stage, the sludge and miscellaneous bacteria on the surface of the food materials can be removed, the freshness of the food materials can be guaranteed, and the produced slurry can be made healthier.

[0095] It can be understood that after the pulping stage is completed and the pulp discharge is finished, the residues in the pulping cavity will breed various bacteria and molds. In the related art, sterilization is mainly performed by high temperature, but continuous high temperature makes it more difficult to remove the residues adhered to the inner wall of the pulping cavity. Based on this, an embodiment of the present application proposes a pulping method, which performs cleaning treatment on the pulping cavity after the pulping stage is completed.

[0096] Figure 6 A flowchart of the cleaning stage of the pulping method according to the embodiment of the present application is shown. As shown in Figure 6 After the pulping stage is completed, the cleaning stage of the pulping method can include the following steps:

[0097] Step 601, residue removal treatment is performed on the pulping cavity;

[0098] Step 602, sterilization treatment is performed on the pulping cavity;

[0099] Step 603, drying treatment is performed on the pulping cavity.

[0100] In step 601, the liquid inlet module and the stirring module can be started at the same time, the liquid inlet module is controlled to inject water into the pulping cavity, the water volume is between 200-400 mL, the water is stirred while being injected, the stirring time is between 1-3 min, and the residues are washed by cold water whipping. After the liquid inlet module and the stirring module are started for a preset time, the drainage module is started, and the drainage module is controlled to drain the water with residues, and the drainage time can be set to 10-20 s.

[0101] In step 602, pulse electric field can be used for sterilization treatment.

[0102] In some embodiments, the liquid inlet module can be controlled to inject liquid into the pulping cavity, the heating module can be controlled to be started, and the fourth temperature in the pulping cavity can be obtained; in a case where the fourth temperature in the pulping cavity reaches a fourth preset temperature, the pulse electric field module can be controlled to apply a third pulse electric field to the pulping cavity to perform sterilization treatment on the pulping cavity; and in a case where the duration of applying the third pulse electric field reaches a fifth preset duration, the liquid in the pulping cavity can be drained by the liquid outlet module.

[0103] In the implementation process, the liquid injection module and the heating module can be started at the same time, the liquid injection module is controlled to inject liquid into the pulping cavity, the liquid volume is between 200-400 mL, the heating module is controlled to keep the fourth temperature between 40-60°C, and the residue adhered to the inner wall is softened at medium temperature. After the injection of liquid is completed, the pulse electric field module is controlled to be started, the liquid is between the two electrodes, and effective cold sterilization and cleaning are performed by combining medium temperature and pulse electric field, so that the residue adhered to the inner wall of the cavity is avoided. The values of the electric field strength and the pulse width of the third pulse electric field correspond to E3 kilovolts per centimeter and W3 microseconds, and the value of the pulse frequency of the third pulse electric field is the working frequency of the pulse electric field per minute F3, wherein 0.5<E3<5, 1<W3<100, and 0<F3<2000. The total running time of the whole process can be set to be between 2-5 min, and the time length of applying the third pulse electric field can be 50%-90% of the total running time. After the third pulse electric field is applied, the liquid is discharged by controlling the liquid discharge module, and the time can be set to be between 10-20 s. The stirring module is not started during the whole process to avoid cavitation caused by stirring affecting the ionization sterilization effect of the pulse electric field. The whole process can be a cycle period, and the cycle period can be set to be 1-3 according to actual conditions.

[0104] In some embodiments, after the liquid in the pulping cavity is discharged by controlling the liquid discharge module, the liquid injection module can be controlled to inject liquid into the pulping cavity; the stirring module is controlled to stir the liquid in the pulping cavity; the heating module is controlled to be started to heat the liquid in the pulping cavity to a fifth preset temperature, wherein the fifth preset temperature is greater than the fourth preset temperature; and when the starting time length of the heating module reaches a sixth preset time length, the liquid discharge module is controlled to discharge the liquid in the pulping cavity.

[0105] In the implementation process, the liquid injection module, the heating module and the stirring module can be started at the same time, the liquid injection module is controlled to inject liquid into the pulping cavity, the liquid volume is between 300-400 mL, the heating module is controlled to keep the temperature between 95-100°C, and after reaching the temperature, the temperature is controlled by using a power of 200-400 W. Since most of the residue and bacteria have been removed in the previous stage, high temperature can be used to kill the remaining mold which is difficult to inactivate. The stirring module is controlled to stir the liquid for 1-2 min, and after the stirring is completed, the liquid is discharged by controlling the liquid discharge module, and the liquid discharge time is between 10-20 s. The whole process can be a cycle period, and the cycle period can be set to be 1-2 according to actual conditions.

[0106] In step 603, the heating module and the stirring module can be started, the valve port of the liquid discharge module is opened, the heating module is controlled to keep the temperature between 60-80℃ to dry the moisture in the pulping cavity, and the blade of the stirring module is controlled to idle to circulate the air in the pulping cavity to accelerate the moisture discharge and prevent the growth of microorganisms during subsequent placement. The time of the whole process can be set to be greater than or equal to 2 minutes.

[0107] By performing the residual removal treatment in the pulping cavity, the residues in the pulping cavity can be effectively removed. By using the method of medium temperature combined with pulse electric field for cold sterilization cleaning, the residues can be prevented from adhering to the inner wall of the pulping cavity due to high temperature. If high temperature is used for sterilization on the basis of cold sterilization cleaning, the remaining mold can be effectively removed. By performing the drying treatment in the pulping cavity, the growth of microorganisms during subsequent placement can be prevented, and the cleanliness of the pulping equipment is ensured.

[0108] The device embodiments of the present application are introduced below, which can be used to perform the pulping method in the above-mentioned embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the above-mentioned embodiments of the pulping method of the present application.

[0109] Figure 7 A block diagram of a pulping device according to an embodiment of the present application is shown. As shown in Figure 7 The pulping device of the present application is applied to a pulping equipment, which includes a pulping cavity, a pulse electric field module and a stirring module. The pulse electric field module and the stirring module are both located in the pulping cavity. The pulping device can include an enzyme inactivation unit 701 and a pulping unit 702. The enzyme inactivation unit 701 is used to control the pulse electric field module to apply a first pulse electric field to the pulping cavity to perform enzyme inactivation treatment on the food materials in the pulping cavity in the enzyme inactivation stage. The liquid level in the pulping cavity is higher than the surface of the food materials. The pulping unit 702 is used to control the stirring module to stir the liquid and the enzyme-inactivated food materials in the pulping cavity to obtain the slurry in the pulping stage. In the case of being in the pulping stage, in response to a heating and boiling instruction, the pulse electric field module is controlled to be turned on at least once, so that the temperature of the pulping cavity in the pulping stage is higher than the temperature of the pulping cavity in the enzyme inactivation stage.

[0110] In some embodiments, the values of the electric field strength and the pulse width of the first pulse electric field correspond to E1 kilovolts per centimeter and W1 microseconds, and the value of the pulse frequency of the first pulse electric field corresponds to the working frequency F1 of the pulse electric field per minute, wherein E1≧0.5 and 1000<E1×F1×W1<5000, or E1≧0.5 and 3000<E1×F1×W1<20000.

[0111] In some embodiments, the pulsed electric field module comprises a first electrode and a second electrode arranged in relative spacing, and the pulping device can further comprise a measurement unit (not shown in the figure) for obtaining a voltage difference between the first electrode and the second electrode and a shortest distance; dividing the voltage difference by the shortest distance to obtain the electric field strength.

[0112] In some embodiments, the enzyme inactivation unit 701 is further configured to, during the enzyme inactivation stage, obtain a first temperature in the pulping cavity; and stop applying the first pulsed electric field when the first temperature is greater than a first preset temperature; and / or, the enzyme inactivation unit 701 is further configured to, during the enzyme inactivation stage, control the stirring module to rotate at a speed less than 1000 r / min.

[0113] In some embodiments, the pulping device further comprises a liquid inlet module and a liquid outlet module, and the pulping device can further comprise a water replacement unit (not shown in the figure) configured to control the liquid in the pulping cavity to be discharged; or, during a water replacement stage before the pulping stage, control the liquid outlet module to discharge the liquid in the pulping cavity; before the pulping stage, control the liquid inlet module to inject liquid into the pulping cavity, and obtain a liquid amount in the pulping cavity; and stop injecting liquid into the pulping cavity when the liquid amount in the pulping cavity reaches a first preset liquid amount, and enter the pulping stage.

[0114] In some embodiments, the pulping device further comprises a heating module, and the pulping device can further comprise a boiling unit (not shown in the figure) configured to, during a boiling stage, control the heating module to be turned on, and obtain a second temperature in the pulping cavity; and control the heating module to remain turned on for a first preset time duration and then turned off when the second temperature reaches a second preset temperature.

[0115] In some embodiments, the pulping unit can be further configured to, in response to a heating boiling instruction, control the pulsed electric field module to apply a second pulsed electric field to the pulping cavity, and obtain a third temperature in the pulping cavity, wherein the electric field parameter of the second pulsed electric field is greater than the electric field parameter of the first pulsed electric field; and control the pulsed electric field module to remain turned on for a second preset time duration and then turned off when the third temperature reaches a third preset temperature.

[0116] In some embodiments, the pulping device can further comprise a preservation unit (not shown in the figure) configured to, during a preservation stage, control the stirring module to stir the liquid in the pulping cavity; control the stirring module to stop stirring when a stirring time duration of the liquid in the pulping cavity reaches a third preset time duration; and control the pulsed electric field module to apply a third pulsed electric field to the pulping cavity to sterilize the food material.

[0117] In some embodiments, the third pulsed electric field has an electric field strength and a pulse width corresponding to E3 kilovolts per centimeter and W3 microseconds, and a pulse frequency corresponding to an operating number of pulsed electric fields per minute F3, wherein 0.5 < E3 < 5, 1 < W3 < 100, and 0 < F3 < 2000.

[0118] In some embodiments, the pulping device further comprises a liquid inlet module and a liquid outlet module, and the pulping device can further comprise a cleaning unit (not shown in the figure) configured to, in a cleaning stage, control the liquid inlet module to inject liquid into the pulping cavity, and control the stirring module to stir the liquid in the pulping cavity; and in a case where a stirring duration of the liquid in the pulping cavity reaches a fourth preset duration, control the liquid outlet module to discharge the liquid in the pulping cavity.

[0119] In some embodiments, the pulping device further comprises a heating module, a liquid inlet module, and a liquid outlet module, and the cleaning unit is configured to, in a cleaning stage, control the liquid inlet module to inject liquid into the pulping cavity, and control the heating module to be turned on and obtain a fourth temperature in the pulping cavity; and in a case where the fourth temperature in the pulping cavity reaches a fourth preset temperature, control the pulsed electric field module to apply a third pulsed electric field to the pulping cavity for sterilization treatment; and in a case where an application duration of the third pulsed electric field reaches a fifth preset duration, control the liquid outlet module to discharge the liquid in the pulping cavity.

[0120] In some embodiments, the cleaning unit is configured to, in a cleaning stage, control the liquid inlet module to inject liquid into the pulping cavity; control the stirring module to stir the liquid in the pulping cavity; and control the heating module to be turned on to heat the liquid in the pulping cavity to a fifth preset temperature, wherein the fifth preset temperature is greater than the fourth preset temperature; and in a case where a turning-on duration of the heating module reaches a sixth preset duration, control the liquid outlet module to discharge the liquid in the pulping cavity.

[0121] Based on the same inventive concept, the embodiments of the present application also provide a pulping device. Figure 8 A structure diagram of a pulping device according to an embodiment of the present application is shown, which comprises one or more memories 804, one or more processors 802, and at least one computer program (computer program instructions) stored in the memory 804 and executable on the processor 802, and the processor 802 implements the method as described above when executing the computer program.

[0122] wherein, in Figure 8In this document, a bus architecture (represented by bus 800) is used. Bus 800 may include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 802 and memory represented by memory 804. Bus 800 may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 805 provides an interface between bus 800 and receiver 801 and transmitter 803. Receiver 801 and transmitter 803 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 802 is responsible for managing bus 800 and general processing, while memory 804 can be used to store data used by processor 802 during operation.

[0123] Based on the same inventive concept, embodiments of this application provide a computer-readable storage medium storing computer program instructions, which, when executed by a processor, cause the processor to perform the steps of the method described above.

[0124] Based on the same inventive concept, embodiments of this application provide a computer program product, including a computer program, which, when executed by a processor, causes the processor to perform the steps of the method described above.

[0125] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0126] In several embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. Among them, the above-mentioned device embodiments are only schematic, for example, the division of the units can be a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be through some interface, indirect coupling or communication connection between units or modules, which can be electrical or other forms.

[0127] The units described as separate components can or can not be physically separated, and the components of the control device can or can not be physical units, i.e. can be located in one place or can be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0128] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a plurality of instructions for making a computer device (which can be a personal computer, a server or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various computer program instruction storage media.

[0129] The above is only an embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of claims of the present application.

Claims

1. A pulping method applied to a pulping apparatus, characterized in that The pulping device comprises a pulping cavity, a pulsed electric field module and a stirring module, the pulsed electric field module and the stirring module are both located in the pulping cavity, and the method comprises: In the enzyme inactivation stage, the pulsed electric field module is controlled to apply a first pulsed electric field to the pulping cavity to perform enzyme inactivation treatment on the food materials in the pulping cavity; wherein the liquid level in the pulping cavity is higher than the surface of the food materials; In the pulping stage, the stirring module is controlled to stir the liquid and the enzyme-inactivated food materials in the pulping cavity to obtain a slurry; In the case where the pulping stage is in the case, in response to the heating boiling instruction, the pulsed electric field module is controlled to be turned on at least once, so that the temperature of the pulping cavity in the pulping stage is higher than the temperature of the pulping cavity in the enzyme inactivation stage; The first pulsed electric field has an electric field strength and a pulse width corresponding to E1 kilovolts per centimeter and W1 microseconds, and a pulse frequency corresponding to the number of operating times of the pulsed electric field per minute F1, wherein, in the case where the food material is a fruit or vegetable food material, E1≧0.5 and 1000<E1×F1×W1<5000, or, in the case where the food material is a soybean food material, E1≧0.5 and 3000<E1×F1×W1<20000. The step of controlling the pulsed electric field module to be turned on at least once in the case where the pulping stage is in the case, in response to the heating boiling instruction, comprises: In response to the heating boiling instruction, the pulsed electric field module is controlled to apply a second pulsed electric field to the pulping cavity, and a third temperature in the pulping cavity is obtained, wherein the electric field parameter of the second pulsed electric field is greater than the electric field parameter of the first pulsed electric field; In the case where the third temperature reaches a third preset temperature, the pulsed electric field module is controlled to keep on for a second preset time and then turn off.

2. The pulping process of claim 1, wherein, The pulsed electric field module comprises a first electrode and a second electrode arranged in opposite positions, and the electric field strength is obtained by the following steps: The voltage difference and the shortest distance between the first electrode and the second electrode are obtained; The voltage difference is divided by the shortest distance to obtain the electric field strength.

3. The pulping process of claim 1 wherein, After the step of controlling the pulsed electric field module to apply a first pulsed electric field to the pulping cavity, the method further comprises: In the enzyme inactivation stage, the first temperature in the pulping cavity is obtained; In the case where the first temperature is greater than a first preset temperature, the application of the first pulsed electric field is stopped; And / or, in the enzyme inactivation stage, the rotating speed of the stirring module is controlled to be less than 1000 r / min.

4. The pulping process of claim 1 wherein, After the enzyme inactivation stage, the method further comprises: The liquid in the pulping cavity is controlled to be discharged; Or, the pulping device further comprises a liquid inlet module and a liquid discharge module, and the method comprises: In the water changing stage before the pulping stage, the liquid discharge module is controlled to discharge the liquid in the pulping cavity; Before the pulping stage, the liquid inlet module is controlled to inject liquid into the pulping cavity, and the liquid amount in the pulping cavity is obtained; In the case where the liquid amount in the pulping cavity reaches a first preset liquid amount, the injection of liquid into the pulping cavity is stopped, and the pulping stage is entered.

5. The pulping process of claim 1 wherein, The pulping device further comprises a heating module, and after the enzyme inactivation stage, the method further comprises: In the boiling stage, the heating module is controlled to be turned on, and the second temperature in the pulping cavity is obtained; In the case where the second temperature reaches a second preset temperature, the heating module is controlled to keep on for a first preset time and then turn off.

6. The pulping process of claim 1 wherein, Before the enzyme inactivation stage, the method further comprises: In the preservation stage, the stirring module is controlled to stir the liquid in the pulping cavity; In a case where a stirring duration of the liquid in the pulping cavity reaches a third preset duration, the stirring module is controlled to stop stirring; The pulse electric field module is controlled to apply a third pulse electric field to the pulping cavity to perform sterilization treatment on the food material.

7. The pulping process of claim 6, wherein, The third pulse electric field has an electric field strength of E3 kilovolts per centimeter and a pulse width of W3 microseconds, and a pulse frequency of F3 pulse electric field operations per minute, where 0.5 < E3 < 5, 1 < W3 < 100, and 0 < F3 < 2000.

8. The pulping process of claim 1 wherein, The pulping device further comprises a liquid inlet module and a liquid outlet module, and after the pulping stage, the method further comprises: In the cleaning stage, the liquid inlet module is controlled to inject liquid into the pulping cavity, and the stirring module is controlled to stir the liquid in the pulping cavity; In a case where a stirring duration of the liquid in the pulping cavity reaches a fourth preset duration, the liquid outlet module is controlled to discharge the liquid in the pulping cavity.

9. The pulping process of claim 1 wherein, The pulping device further comprises a heating module, a liquid inlet module, and a liquid outlet module, and after the pulping stage, the method further comprises: In the cleaning stage, the liquid inlet module is controlled to inject liquid into the pulping cavity, and the heating module is controlled to be turned on, and a fourth temperature in the pulping cavity is obtained; In a case where the fourth temperature in the pulping cavity reaches a fourth preset temperature, the pulse electric field module is controlled to apply a third pulse electric field to the pulping cavity to perform sterilization treatment on the pulping cavity; In a case where a duration of applying the third pulse electric field reaches a fifth preset duration, the liquid outlet module is controlled to discharge the liquid in the pulping cavity.

10. The pulping process of claim 9, wherein, After the liquid outlet module discharges the liquid in the pulping cavity, the method further comprises: In the cleaning stage, the liquid inlet module is controlled to inject liquid into the pulping cavity; The stirring module is controlled to stir the liquid in the pulping cavity; The heating module is controlled to be turned on to heat the liquid in the pulping cavity to a fifth preset temperature, where the fifth preset temperature is greater than the fourth preset temperature; In a case where a turning-on duration of the heating module reaches a sixth preset duration, the liquid outlet module is controlled to discharge the liquid in the pulping cavity.

11. A pulping apparatus comprising a processor and a memory, characterized in that, The memory stores computer program instructions that can be executed by the processor, and the processor, when executing the computer program instructions, implements the steps of the method of any one of claims 1 to 10.

12. A computer-readable storage medium, characterized in that, The computer program instructions are stored in the computer-readable storage medium, and the computer program instructions, when executed by the processor, cause the processor to implement the steps of the method of any one of claims 1 to 10.

13. A computer program product comprising a computer program, characterized in that, The computer program, when executed by the processor, causes the processor to implement the steps of the method of any one of claims 1 to 10.

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