Pulping method and pulping equipment

Abstract

The invention discloses a pulping method and pulping equipment, and belongs to the technical field of pulping equipment control, and the method comprises the following steps: in an enzyme deactivation stage, controlling a pulsed electric field module to apply a first pulsed electric field into a pulping cavity so as to perform enzyme deactivation treatment on food materials in the pulping cavity; wherein the liquid in the pulping cavity is higher than the surface of the food material; in the pulping stage, the stirring module is controlled to stir liquid in the pulping cavity and the food materials subjected to enzyme deactivation so as to obtain pulp; under the condition of the pulping stage, responding to a heating and boiling instruction, and controlling the pulsed electric field module to be started at least once, so that the temperature of the interior of the pulping cavity in the pulping stage is higher than the temperature of the interior of the pulping cavity in the enzyme deactivation stage. According to the scheme, enzyme is inactivated by utilizing the pulsed electric field in the cooking process, the effect of rapid enzyme deactivation is achieved, the influence on the flavor of the pulp is reduced, meanwhile, the pulsed electric field acts on the food material pulp during heating and boiling to enable the food material pulp to be heated spontaneously, and the heating efficiency and the boiling effect of the pulp can be improved.

Description

Technical Field

[0001] This application belongs to the technical field of pulp-making equipment control, and particularly relates to a pulp-making method and pulp-making equipment. Background Art

[0002] The most common functions of pulp-making equipment such as blenders are to make soy milk and fruit and vegetable juices. When making soy milk, since there is trypsin inhibitor in soy milk, in order to prevent users from having diarrhea after eating, a long cooking time is required. When making fruit and vegetable juices, since there are enzymes in the food, the fruit and vegetable juices are prone to browning.

[0003] In related technologies, a high-temperature enzyme inactivation scheme is usually adopted. For example, enzymes are inactivated by steam. However, the soy milk and fruit and vegetable juices after steam cooking have a steamed taste, which will affect the flavor of the soy milk, fruit and vegetable juices and other slurries. Secondly, conventional pulp-making equipment uses a heat conduction heating method such as a heating plate to cook and ripen the ingredients into pulp, which is easily limited by the rated heating power. Under the condition of high-power rapid heating, it is easy to cause sticking to the bottom, and low-power heating cannot achieve rapid boiling, resulting in poor pulp-making effect. Summary of the Invention

[0004] The embodiments of the present application provide a pulp-making method and pulp-making equipment, which can at least to a certain extent inactivate enzymes by means of pulsed electric fields, reducing the influence on the flavor of slurries such as soy milk and fruit and vegetable juices.

[0005] Other features and advantages of the present application will become apparent through the following detailed description, or will be partially learned through the practice of the present application.

[0006] According to the first aspect of the embodiments of the present application, a pulp-making method is provided, which is applied to a pulp-making equipment. The pulp-making equipment includes a pulp-making cavity, a pulsed electric field module and a stirring module. The pulsed electric field module and the stirring module are both located in the pulp-making cavity. The pulp-making method includes: in the enzyme inactivation stage, controlling the pulsed electric field module to apply a first pulsed electric field to the inside of the pulp-making cavity to inactivate the ingredients in the pulp-making cavity; wherein, the liquid level in the pulp-making cavity is higher than the surface of the ingredients; in the pulp-making stage, controlling the stirring module to stir the liquid and the inactivated ingredients in the pulp-making cavity to obtain a slurry; in the case of being in the pulp-making stage, in response to a heating and boiling instruction, controlling the pulsed electric field module to be turned on at least once, so that the temperature in the pulp-making cavity in the pulp-making stage is higher than the temperature in the pulp-making cavity in the enzyme inactivation stage.

[0007] In some embodiments, the values of the electric field strength and pulse width of the first pulsed electric field are E1 kV / cm and W1 μs respectively, and the value of the pulse frequency of the first pulsed electric field is the number of working times F1 per minute of the pulsed electric field, where 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 includes a first electrode and a second electrode arranged relatively spaced apart, and the electric field strength is 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 strength.

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

[0010] In some embodiments, after the enzyme inactivation stage, the pulping method further includes: controlling the discharge of liquid in the pulping chamber; or, the pulping equipment further includes a liquid inlet module and a liquid discharge module, and the pulping method includes: in the water changing stage before the pulping stage, controlling the liquid discharge module to discharge the liquid in the pulping chamber; before the pulping stage, controlling the liquid inlet module to inject liquid into the pulping chamber and obtain the liquid volume in the pulping chamber; when the liquid volume in the pulping chamber reaches a first preset liquid volume, stopping the injection of liquid into the pulping chamber and entering the pulping stage.

[0011] In some embodiments, the pulping equipment also includes a heating module. After the enzyme inactivation stage, the pulping method also includes: in the boiling stage, controlling the heating module to turn on and obtaining a second temperature in the pulping chamber; when the second temperature reaches a second preset temperature, controlling the heating module to stay on for a first preset time and then turn off.

[0012] In some embodiments, when in the pulping stage, in response to a heating and boiling instruction, the step of controlling the pulse electric field module to turn on at least once includes: in response to the heating and boiling instruction, controlling the pulse electric field module to apply a second pulse electric field to the pulping chamber, and obtaining a third temperature in the pulping chamber, wherein the electric field parameters of the second pulse electric field are greater than the electric field parameters of the first pulse electric field; when the third temperature reaches a third preset temperature, controlling the pulse electric field module to stay on for a second preset period of time and then turn off.

[0013] In some embodiments, before the enzyme inactivation stage, the pulping method also includes: in the preservation stage, controlling the stirring module to stir the liquid in the pulping chamber; when the stirring time of the liquid in the pulping chamber reaches a third preset time, controlling the stirring module to stop stirring; controlling the pulse electric field module to apply a third pulse electric field to the pulping chamber to sterilize the food.

[0014] In some embodiments, the electric field strength and pulse width of the third pulse electric field are E3 kilovolts per centimeter and W3 microseconds, respectively. The pulse frequency of the third pulse electric field is F3, the number of times the pulse electric field works per minute, wherein 0.5 <E3<5,1<W3<100,0<F3<2000。

[0015] In some embodiments, the pulping equipment also includes a liquid inlet module and a liquid discharge module. After the pulping stage, the pulping method also includes: in the cleaning stage, controlling the liquid inlet module to inject liquid into the pulping chamber, and the stirring module to stir the liquid in the pulping chamber; when the stirring time of the liquid in the pulping chamber reaches a fourth preset time, controlling the liquid discharge module to discharge the liquid in the pulping chamber.

[0016] In some embodiments, the pulping equipment also includes a heating module, a liquid inlet module and a liquid discharge module. After the pulping stage, the pulping method also includes: in the cleaning stage, controlling the liquid inlet module to inject liquid into the pulping chamber, and controlling the heating module to turn on, and obtaining a fourth temperature in the pulping chamber; when the fourth temperature in the pulping chamber reaches a fourth preset temperature, controlling the pulse electric field module to apply a third pulse electric field to the pulping chamber to sterilize the pulping chamber; when the duration of applying the third pulse electric field reaches a fifth preset duration, controlling the liquid discharge module to discharge the liquid in the pulping chamber.

[0017] In some embodiments, after controlling the drainage module to drain the liquid in the pulping chamber, the pulping method also includes: in the cleaning stage, controlling the liquid inlet module to inject liquid into the pulping chamber; controlling the stirring module to stir the liquid in the pulping chamber; controlling the heating module to turn on to heat the liquid in the pulping chamber to a fifth preset temperature, wherein the fifth preset temperature is greater than the fourth preset temperature; when the heating module is turned on for a sixth preset time, controlling the drainage module to drain the liquid in the pulping chamber.

[0018] According to a second aspect of an embodiment of the present application, a pulping device is provided, comprising a processor and a memory, wherein the memory stores computer program instructions that can be executed by the processor, and when the processor executes the computer program instructions, the steps of any method of the first aspect described above are implemented.

[0019] According to a third aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which computer program instructions are stored. When the computer program instructions are executed by a processor, the processor is prompted to implement the steps of any method of the first aspect described above.

[0020] According to a fourth aspect of an embodiment of the present application, a computer program product is provided, including a computer program. When the computer program is executed by a processor, it prompts the processor to implement the steps of any method of the first aspect described above.

[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 pulping cavity to inactivate the enzymes of the food in the pulping cavity; wherein the height of the liquid in the pulping cavity is higher than the surface of the food; in the pulping stage, the stirring module is controlled to stir the liquid in the pulping cavity and the food after enzyme inactivation to obtain a slurry; in the pulping 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 in the pulping cavity in the pulping stage is higher than the temperature in the pulping cavity in the enzyme inactivation stage. The technical solution provided by the present application can use the pulse electric field to inactivate the enzyme in the cooking process, achieve the effect of rapid enzyme inactivation, reduce the impact on the flavor of the slurry, and use the pulse electric field to act on the food pulping material to make it self-heated during heating and boiling, which is conducive to improving the heating efficiency and boiling effect of pulping.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

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

[0025] Figure 2 A schematic diagram of a process of a pulping method according to an embodiment of the present application is shown;

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

[0027] Figure 4 A schematic diagram of the process of the preservation stage of the pulping method according to an embodiment of the present application is shown;

[0028] Figure 5 Shows Figure 4 Demonstration diagram of the pulping equipment working in the preservation stage;

[0029] Figure 6A schematic diagram of the process of the cleaning stage of the 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 schematic structural diagram of a pulping device according to an embodiment of the present application is shown.

[0032] Description of Figure Numbers:

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

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

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

[0037] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

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

[0039] In order to make those skilled in the art better understand the present application, firstly, Figure 1 The application scenarios involved in this application are briefly described.

[0040] Figure 1 FIG. 1 shows a functional module schematic diagram of a pulping device according to an embodiment of the present application. Figure 1 As shown, the pulping equipment includes a pulping chamber 10, a pulsed electric field module (not shown) and a stirring module 30, and the pulsed electric field module includes a pulsed electric field control unit 21, a first electrode 22 and a second electrode 23, wherein the first electrode 22, the second electrode 23 and the stirring module 30 are all located in the pulping chamber 10, and the two electrodes are one positive and one negative, and are controlled by the pulsed electric field control unit 21. The two electrodes are in contact with the food and water in the pulping chamber 10, and the food and water can be used as conductive media to form a pulsed electric field. In the embodiment of the present application, the pulping equipment needs to go through at least three stages during the cooking process: a preparation stage, an enzyme inactivation stage and a pulping stage. After the preparation stage, the user will start the cooking program through the pulping device. The pulping device responds to the cooking start instruction sent by the user, enters the enzyme inactivation stage, and controls the pulse electric field module to apply a first pulse electric field to the pulping cavity 10 to inactivate the enzymes in the food in the pulping cavity 10. After the duration of the enzyme inactivation stage reaches the set duration, the pulping stage can be entered, and the stirring module 30 is controlled to stir the liquid in the pulping cavity 10 and the enzyme-inactivate food to obtain a slurry. In response to the heating and boiling instruction, the pulse electric field module is controlled to be turned on at least once to make the temperature in the pulping cavity in the pulping stage higher than the temperature in the pulping cavity in the enzyme inactivation stage. This scheme takes into account the problems of long enzyme inactivation time and influence on the flavor of pulp in high-temperature enzyme inactivation schemes (including boiling water and steaming schemes), and proposes a scheme of using pulsed electric field to inactivate enzymes during the cooking process. During the cooking process, a strong instantaneous pulsed electric field is applied to the pulping cavity 10, so that the charged protein substances such as enzymes in the food in the pulping cavity 10 are instantly inactivated under the influence of the strong pulsed electric field, achieving the effect of rapid enzyme inactivation and less influence on the flavor of pulp. At the same time, in the pulping stage, if a heating and boiling instruction is received, a pulsed electric field is used for heating and boiling, instead of using a traditional heating module for heating and boiling, so as to avoid being limited by the rated power of the heating module, achieve rapid heating and boiling, and improve the boiling effect of the pulp.

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

[0042] Step 201, in the enzyme inactivation stage, controlling the pulse electric field module to apply a first pulse electric field into the pulping chamber to inactivate enzymes in the food in the pulping chamber; wherein the height of the liquid in the pulping chamber is higher than the surface of the food;

[0043] Step 202, during the pulping stage, controlling the stirring module to stir the liquid in the pulping chamber and the enzyme-inactivated food to obtain a pulp; in the pulping stage, in response to a heating and boiling instruction, controlling the pulsed electric field module to turn 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-inactivating stage.

[0044] Among them, the pulping equipment can be a food processor, a wall breaking machine and other equipment with pulping function, and the food materials can be fruits, vegetables, soybeans or other grains, which is not limited in this embodiment of the present application.

[0045] As mentioned above, pulping equipment needs to go through at least three stages during the cooking process: preparation stage, enzyme inactivation stage and pulping stage. Usually, when making fruit and vegetable juice, at least these three stages need to be experienced; and when making soy milk, it also needs to go through the boiling stage, that is, at least four stages: preparation stage, enzyme inactivation stage, boiling stage and pulping stage. The pulping equipment pre-sets 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 ingredients (apples, peaches and other fruits and vegetables that are easy to brown) and liquid into the pulping cavity, make the liquid cover the ingredients, and start the cooking process. Of course, in the preparation stage, the user can also use the pulping equipment to preserve the ingredients before starting the cooking process.

[0047] The pulping equipment responds to the cooking start instruction sent by the user and enters the enzyme inactivation stage. In the enzyme inactivation stage, the pulse electric field module is controlled to apply the first pulse electric field to the pulping chamber. It should be noted that the types of enzymes in different ingredients are different, so the electric field parameters of the first pulse electric field to be applied are also different. The electric field parameters include at least one of electric field strength, pulse frequency, pulse width and electric field energy, wherein the electric field energy is the product of the electric field strength, pulse frequency and pulse width.

[0048] The electric field strength refers to the magnitude of the electric force per unit charge in the electric field. The pulse frequency refers to the number of working times of the pulsed electric field per unit time. The pulse width refers to the duration of each operation of the pulsed electric field. The electric field energy is the product of the electric field strength, pulse frequency, and pulse width.

[0049] In some embodiments, the values of the electric field strength and pulse width of the first pulsed electric field are correspondingly E1 kV / cm and W1 μs, and the value of the pulse frequency of the first pulsed electric field is the number of working times F1 per minute of the pulsed electric field. For fruit and vegetable ingredients, E1 ≥ 0.5 and 1000 < E1×F1×W1 < 5000; for soybean ingredients, E1 ≥ 0.5 and 3000 < E1×F1×W1 < 20000.

[0050] By applying the first pulsed electric field with different values of electric field parameters to different types of ingredients, the control accuracy in the enzyme inactivation stage is improved.

[0051] In the implementation process, the electric field parameters can be obtained by measuring the relevant parameters with an oscilloscope and then calculating the relevant parameters. In some embodiments, the electric field strength can be obtained through 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 strength.

[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 placed in the "AC" position to display the AC component of the input waveform. If the frequency of the AC signal is very low, the Y-axis input coupling switch is placed in the "DC" position. Move the measured waveform to the center position of the oscilloscope screen, use the "V / div" switch to control the measured waveform within the effective working area of the screen, and read the degree H occupied by the entire waveform in the Y-axis direction according to the scale of the coordinate scale piece. Then the peak-to-peak value VP-P of the measured voltage can be equal to the product of the indication value of the "V / div" switch and the degree H. If a probe is used to measure the voltage difference, the attenuation of the probe should be taken into account, that is, multiply the product of the above indication value and the degree H 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 placed in the "ground" position, and the trigger mode switch is placed in the "auto" position to make the screen display a horizontal scan line, which is the zero-level line. Place the Y-axis input coupling switch in the "DC" position and apply the measured voltage. At this time, the scan line jumps in the Y-axis direction by a displacement H, and the measured voltage is the product of the indication value of the "V / div" switch and H.

[0054] In some embodiments, the pulse frequency can be obtained through the following steps: using the oscilloscope to measure the time T of each pulse period, and using the formula F = 1 / T to obtain the pulse frequency.

[0055] In some embodiments, the pulse width can be obtained through the following steps: connecting the pulse signal to be measured: connecting the pulse signal to be measured to the input channel of the oscilloscope; setting the time base: selecting a suitable time base according to the expected range of the pulse width to ensure that the rising edge and falling edge of the pulse signal can be clearly displayed on the oscilloscope screen; setting the trigger conditions: selecting a suitable trigger type and trigger level to ensure that the oscilloscope can accurately capture the pulse signal; using the measurement function: using the measurement function of the oscilloscope, such as cursor measurement or automatic measurement, 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, during the enzyme inactivation stage, after controlling the pulse electric field module to apply a first pulse electric field to the pulping chamber, a first temperature in the pulping chamber can be obtained; when the first temperature is greater than a first preset temperature, application of the first pulse electric field is stopped.

[0057] The first temperature may be the temperature of the liquid in the pulping chamber, and the first preset temperature may be set to a relatively low temperature according to actual conditions, such as 40° C. It is understandable that, as time passes, the first temperature in the pulping chamber will increase 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 produced fruit and vegetable juice can be kept at the first preset temperature.

[0058] In some embodiments, during the enzyme inactivation stage, after controlling the pulse electric field module to apply the first pulse electric field into the pulping chamber, the rotation speed of the stirring module may be controlled to be zero or less than 1000 r / min.

[0059] It is understandable that during the enzyme inactivation stage, the stirring module may or may not be stirred. If stirring is required, the stirring module needs to be controlled to operate at a lower speed to avoid bubbles generated by stirring from generating holes. These holes are not conductive and will cause the current path to become longer, thereby affecting the enzyme inactivation effect of the pulsed electric field.

[0060] In the pulping stage, the stirring module is turned on. At this time, the stirring module needs to be controlled to run at a higher speed to crush the liquid in the pulping chamber and the enzyme-inactivated ingredients to obtain pulp. In the pulping stage, if the fruit and vegetable method is used, no heating and boiling instructions will be received. If soy milk is 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 pulp.

[0061] In some embodiments, in response to a heating and boiling instruction, the pulse electric field module can be controlled to apply a second pulse electric field to the pulping chamber, and obtain a third temperature in the pulping chamber, wherein the electric field parameters of the second pulse electric field are greater than the electric field parameters of the first pulse electric field; when the third temperature reaches the third preset temperature, the pulse electric field module is controlled to remain turned on for a second preset time and then turned off. Specifically, the pulse electric field module achieves non-contact heating of the target pulping food through the radiation energy instantly generated by the set high-power pulse electric field. Among them, when the second pulse electric field passes through the liquid and food in the pulping chamber, it will cause the acceleration and variable speed movement of the electrons inside the food in the liquid. The interaction between the electrons and the molecules causes vibration and friction inside the molecules, thereby increasing the temperature inside the food to achieve self-heating, which is only limited by the conductivity effect of the food and the liquid itself, and is not limited to the heating efficiency and working power of the original heating module. Therefore, in the pulping stage, if the pulping program selected by the user includes a heating and boiling process, a heating and boiling instruction is output, and the pulse electric field module responds to the heating and boiling instruction, applies a second pulse electric field to the pulping food and liquid, promotes the self-heating of the pulp, and cooperates with the stirring control of the crushing pulping, which can achieve rapid heating and heating while avoiding the phenomenon of the pulp sinking to the bottom or overheating and burning the bottom due to high temperature when sticking to the wall due to inaccurate power temperature control or power adjustment delay, greatly improving the pulping flavor and boiling effect. Secondly, the pulse electric field will directly penetrate the surface of the food and act on the inner core of the food, which can reduce the stirring frequency and achieve a better crushing effect, and achieve rapid heating and pulping.

[0062] During the implementation process, the third preset temperature can be set to a relatively high temperature according to actual conditions. The temperature can be 90° C., 95° C., etc., and the embodiment of the present application is not limited to this.

[0063] It is understandable that since the pulse electric field will destroy the cell membrane of the food, water can more easily penetrate the cell membrane, which will shorten the time it takes for the food to be cooked. Therefore, in the process of cooking with the pulse electric field module, the second preset time can be shorter than the time of traditional cooking with the heating module.

[0064] The electric field strength and pulse width of the second pulse electric field are E2 kV / cm and W2 μs, respectively. The pulse frequency of the second pulse electric field is F2, the number of times the pulse electric field works per minute, E1≧0.2 and 10000. <E2×F2×W2<30000。

[0065] It should be noted that because a pulse electric field module is needed for cooking, the electric field parameters of the second pulse electric field applied by the pulse electric field module to the pulping chamber must be greater than the electric field parameters of the first pulse electric field, that is, the pulse electric field in the pulping chamber must be stronger. Only in this way can more heat energy be provided, rapid temperature rise and cooking can be achieved, and the cooking time of the ingredients can be accelerated, thereby improving the cooking effect of the pulp.

[0066] The following is an introduction to the process of making non-browning fruit and vegetable juice using the pulping method according to the embodiment of the present application:

[0067] In the preparation stage, the user places the fruits and vegetables that are prone to browning and water into the pulping chamber so that the water covers the fruits and vegetables and starts the cooking process.

[0068] In the enzyme inactivation stage, the pulse electric field module is controlled to apply the first pulse electric field to the pulping chamber. The electric field strength E1 of the first pulse electric field is ≥ 0.5 KV / cm, the electric field energy E1×F1×W1 is in the range of 1000-5000, the treatment time is t1, where t1≤10min, and the optimal treatment time is 1-5min. As time passes, if the first temperature in the pulping chamber exceeds 40°C, the pulse electric field module is turned off until the first temperature is lower than 40°C and then turned on again. During the process of turning on the pulse electric field module, the stirring module is not turned on or the speed after turning on is less than 1000r / min.

[0069] In the pulping stage, the pulse electric field module is turned off, and the stirring module is controlled to stir the water in the pulping chamber and the enzyme-inactivated fruits and vegetables to obtain fruit and vegetable juice.

[0070] The above process can solve the problem of browning of fruits and vegetables during high-speed stirring by inactivating enzymes in advance, and the temperature of the produced fruit and vegetable juice is lower than 40°C.

[0071] In the embodiment of the present application, during the enzyme inactivation stage, the pulse electric field module is controlled to apply a first pulse electric field to the pulping chamber to inactivate enzymes on the food in the pulping chamber; wherein the height of the liquid in the pulping chamber is higher than the surface of the food; during the pulping stage, the stirring module is controlled to stir the liquid in the pulping chamber and the food after enzyme inactivation to obtain a slurry; 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 in the pulping chamber during the pulping stage is higher than the temperature in the pulping chamber during the enzyme inactivation stage. The technical solution provided by the present application can utilize a pulse electric field to inactivate enzymes during the cooking process, achieve the effect of rapid enzyme inactivation, reduce the impact on the flavor of the slurry, and utilize a pulse electric field for heating and boiling, directly acting on the food slurry to make it self-heated, which is beneficial to improving the heating efficiency and boiling effect of pulping.

[0072] As mentioned above, when making soy milk, it is necessary to go through at least four stages: preparation stage, enzyme inactivation stage, boiling stage and pulping stage. Among them, the steps of the preparation stage, enzyme inactivation stage and pulping stage have been described in detail before, and the following focuses on the boiling stage.

[0073] In some embodiments, the pulping equipment further includes a heating module, which can be used for boiling. During the boiling stage, the heating module can be controlled to turn on and obtain a second temperature in the pulping chamber; when the second temperature reaches a second preset temperature, the heating module is controlled to remain on for a first preset time and then turned off.

[0074] During implementation, the second preset temperature may be set to a relatively high temperature according to actual conditions, such as 90° C. The first preset duration may be set to a longer time according to actual conditions, such as 5 to 25 minutes.

[0075] The following is an introduction to the process of making instant soymilk based on the pulping method of the embodiment of the present application:

[0076] In the preparation stage, the user places soybeans and water into the pulping chamber, covering the soybeans with water, and starts the cooking process.

[0077] In the enzyme inactivation stage, the pulse electric field module is controlled to apply the first pulse electric field to the pulping chamber. The electric field strength E1 of the first pulse electric field is ≥ 0.5 KV / cm, the electric field energy E1×F1×W1 is in the range of 3000-20000, the processing time is t1, where t1≤10min, and the optimal processing time is 1-5min. During the process of turning on the pulse electric field module, the stirring module is not turned on or the speed after turning on is less than 1000r / min. Because the soy milk needs to be cooked later, the temperature control requirements at this stage are not high, and the electric field parameters of the first pulse electric field can be selected as larger values ​​within the above range.

[0078] During the boiling stage, the heating module is controlled to raise the temperature to above 90° C. and maintain the cooking time t2, wherein t2 is between 5 and 25 minutes.

[0079] In the pulping stage, the stirring module is controlled to stir the water in the pulping chamber and the soybeans after enzyme inactivation to obtain soybean milk, and the pulse electric field module is controlled to apply a second pulse electric field to the pulping chamber. The electric field intensity of the second pulse electric field is E2 ≥ 0.2 KV / cm, the range of E2×F2×W2 is between 10000-30000, and E2 ≥ E1, E2×F2×W2 ≥ E1×F1×W1. As time passes, when the temperature is ≥ 95°C, the pulse electric field module is turned off after the cooking time t3 is maintained.

[0080] The above process can shorten the cooking time of soy milk to less than 35 minutes, and has little effect on the volume of soy milk at different times.

[0081] Figure 3 Another functional module schematic diagram of a pulping device according to an embodiment of the present application is shown. Figure 3As shown, the pulping equipment may further include a liquid inlet module 40 and a liquid discharge module 50. After the enzyme inactivation stage, the liquid in the pulping cavity 10 may be controlled to be discharged, or, in the water replacement stage before the pulping stage, the liquid discharge module 50 may 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 obtain the liquid volume in the pulping cavity 10; when the liquid volume in the pulping cavity 10 reaches a first preset liquid volume, the injection of liquid into the pulping cavity 10 is stopped and the pulping stage is entered.

[0082] In the preparation stage, the pulping equipment responds to the cooking start command and can first control the liquid inlet module to inject liquid into the pulping chamber so that the liquid covers the food. In the enzyme inactivation stage, the working principle of the pulsed electric field is to use a short high-intensity electric field pulse to treat the food. The voltage difference applied to the two electrodes exceeds the existing mains voltage. Through short-term high-voltage electric field treatment, the effect that long-term electric field treatment such as ohmic heating cannot achieve can be achieved. The pulsed electric field can generate enough energy to destroy the cell membrane, especially for charged substances such as proteins. By destroying their quaternary structure, they can quickly inactivate them. Most enzymes are active proteins. In the enzyme inactivation stage, the cell membrane of the food will be destroyed, and water-soluble harmful substances such as purines inside the cells will be more easily precipitated into the liquid.

[0083] After the enzyme inactivation stage, the water change stage can be entered. In the water change stage, the liquid in the pulping chamber is discharged, and the food remains in the pulping chamber. After the drainage module is closed, the liquid inlet module is re-injected with liquid, and the pulping stage is entered after the liquid injection is completed. In this way, water-soluble harmful substances such as purine can be physically separated, and the purine content in the pulp can be reduced by 30-70%, making it more suitable for people with potential risk of high uric acid.

[0084] It is understandable that fruits and vegetables will be contaminated with bacteria and sludge during storage and sales, and are prone to spoilage. Conventional methods for preserving fruits and vegetables are mainly low-temperature storage, such as using refrigerators, but low-temperature storage does not have a sterilizing effect, but preserves freshness by inhibiting the growth of bacteria. Based on this, the present application embodiment proposes a pulping method to preserve food before the enzyme inactivation stage.

[0085] Figure 4 The figure shows a schematic flow chart of the preservation stage of the pulping method according to the embodiment of the present application. Figure 4 As shown, the preservation stage of the pulping method may include the following steps:

[0086] Step 401, in the preservation stage, controlling the stirring module to stir the liquid in the pulping chamber;

[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 The working demonstration diagram of the pulping equipment in the preservation 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 so that the liquid cleans the food materials. 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 cleaning 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 E3 kV / cm and W3 μs respectively, and the value of the pulse frequency of the third pulsed electric field is the number of working times per minute of the pulsed electric field F3, where 0.5 < E3 < 5, 1 < W3 < 100, 0 < F3 < 2000. The duration of a single application of the third pulsed electric field 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 preservation stage, the stirring module and the pulsed electric field module are alternately turned on, and sterilization is carried out when the water is static, 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 opening 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 inside of the pulping cavity is a sterile environment, and the food materials can continue to be placed inside for storage.

[0094] By performing low - temperature cleaning and sterilization on the food materials in the preservation 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 thus the produced slurry will be healthier.

[0095] It is understandable that after the pulping stage is completed and the pulping is finished, the residue in the pulping chamber will nourish various bacteria and molds. In the related art, high temperature is mainly used for sterilization, but continuous high temperature will make the residue adhere to the inner wall of the pulping chamber and make it more difficult to remove. Based on this, the embodiment of the present application proposes a pulping method, in which the pulping chamber is cleaned after the pulping stage is completed.

[0096] Figure 6 FIG. 2 shows a schematic flow chart of the cleaning stage of the pulping method according to an embodiment of the present application. Figure 6 As shown, after the pulping stage is completed, the cleaning stage of the pulping process may include the following steps:

[0097] Step 601, performing a residue removal process on the pulping chamber;

[0098] Step 602, sterilizing the pulping cavity;

[0099] Step 603, drying the pulping cavity.

[0100] In step 601, the liquid inlet module and the stirring module can be turned on at the same time, and the liquid inlet module is controlled to inject water into the pulping chamber, with the water volume between 200 and 400 mL, and stirring is performed while the water is injected, and the stirring time is between 1 and 3 minutes, and the residue is washed away by beating with cold water. After the liquid inlet module and the stirring module are turned on for a preset time, the drainage module is turned on, and the drainage module is controlled to drain the water with residues, and the drainage time can be set between 10 and 20 seconds.

[0101] In step 602, a pulsed electric field may be used for sterilization.

[0102] In some embodiments, the liquid inlet module can be controlled to inject liquid into the pulping chamber, and the heating module can be controlled to turn on and obtain a fourth temperature in the pulping chamber; when the fourth temperature in the pulping chamber reaches a fourth preset temperature, the pulse electric field module is controlled to apply a third pulse electric field to the pulping chamber to sterilize the pulping chamber; when the duration of applying the third pulse electric field reaches a fifth preset duration, the liquid discharge module is controlled to discharge the liquid in the pulping chamber.

[0103] During the implementation process, the liquid inlet module and the heating module can be turned on simultaneously. Control the liquid inlet module to inject liquid into the pulping cavity, with the liquid volume between 200 and 400 mL. Control the heating module to maintain the fourth temperature between 40 and 60 °C to soften the residue adhering to the inner wall through medium-temperature softening. After the liquid injection is completed, control the pulsed electric field module to turn on. The liquid is between two electrodes, and effective cold sterilization and cleaning are carried out through the combination of medium temperature and pulsed electric field, avoiding the adhesion of residue to the inner wall of the cavity due to high temperature. The values of the electric field strength and pulse width of the third pulsed electric field are E3 kV / cm and W3 μs respectively, 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, and 0 < F3 < 2000. The total running duration of the whole process can be set between 2 and 5 min, and the duration of applying the third pulsed electric field can be 50% - 90% of the total running duration. After the application of the third pulsed electric field ends, control the liquid discharge module to discharge the liquid, and the time can be set between 10 and 20 s. The stirring module is not turned on during the whole process to avoid the generation of cavities by stirring and affecting the ionization sterilization effect of the pulsed electric field. The whole process can be used as a cycle period, and the cycle can be set to 1 - 3 according to the actual situation.

[0104] In some embodiments, after controlling the liquid discharge module to discharge the liquid in the pulping cavity, the liquid inlet module can also be controlled to inject liquid into the pulping cavity; control the stirring module to stir the liquid in the pulping cavity; control the heating module to turn on to heat the liquid in the pulping cavity to the fifth preset temperature, where the fifth preset temperature is greater than the fourth preset temperature; when the on-time of the heating module reaches the sixth preset duration, control the liquid discharge module to discharge the liquid in the pulping cavity.

[0105] During the implementation process, the liquid inlet module, the heating module and the stirring module can be turned on simultaneously. Control the liquid inlet module to inject liquid into the pulping cavity, with the liquid volume between 300 and 400 mL. Control the heating module to maintain the temperature between 95 and 100 °C, and use a power of 200 - 400 w for temperature control after reaching this temperature. Since most of the residue and bacteria have been removed in the previous stage, high temperature can be used to kill the remaining mold that is difficult to inactivate at this time. Control the stirring module to stir the liquid for 1 - 2 min, and then control the liquid discharge module to discharge the liquid after the stirring ends. The liquid discharge time is between 10 and 20 s. The whole process can be used as a cycle period, and the cycle can be set to 1 - 2 according to the actual situation.

[0106] In step 603, the heating module and the stirring module can be turned on, the valve opening of the liquid discharge module can be opened, and the heating module can be controlled to maintain the temperature between 60 and 80 °C to dry the moisture in the pulping cavity; the blades of the stirring module can be controlled to rotate idly, which can circulate the air in the pulping cavity, accelerate the discharge of moisture, and prevent the growth of microorganisms during subsequent placement. The time for the whole process can be set to be greater than or equal to 2 min.

[0107] By removing residues in the pulping cavity, the residues in the pulping cavity can be effectively removed; by using the method of medium-temperature combined pulsed electric field for cold sterilization and cleaning, it can be avoided that high temperature causes the residues to adhere to the inner wall of the pulping cavity; if sterilization is carried out by using high temperature on the basis of cold sterilization and cleaning, the remaining molds can be effectively removed; by drying the pulping cavity, the growth of microorganisms during subsequent placement can be avoided, ensuring the cleanliness of the pulping equipment.

[0108] The following introduces the device embodiments of the present application, which can be used to execute the pulping method in the above embodiments of the present application. For the details not disclosed in the device embodiments of the present application, please refer to the embodiments of the above pulping method of the present application.

[0109] Figure 7 The block diagram of the pulping device according to the embodiment of the present application is shown. As Figure 7 shown, the pulping device of the embodiment of the present application is applied to a pulping equipment, the pulping equipment includes 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 pulping device may include: an enzyme inactivation unit 701 and a pulping unit 702. Among them, the enzyme inactivation unit 701 is used to control the pulsed electric field module to apply a first pulsed electric field to the inside of the pulping cavity during the enzyme inactivation stage to perform enzyme inactivation treatment on the ingredients in the pulping cavity; wherein, the liquid level in the pulping cavity is higher than the surface of the ingredients; the pulping unit 702 is used to control the stirring module to stir the liquid and the enzyme-inactivated ingredients in the pulping cavity to obtain a slurry during the pulping stage; in the case of being in the pulping stage, in response to the heating and boiling instruction, the pulsed electric field module is controlled to be turned on at least once, so that the temperature in the pulping cavity during the pulping stage is higher than the temperature in the pulping cavity during the enzyme inactivation stage.

[0110] In some embodiments, the values of the electric field strength and the pulse width of the first pulsed electric field are E1 kV / cm and W1 μs respectively, and the value of the pulse frequency of the first pulsed electric field is the number of working times F1 per minute of the pulsed electric field. Among them, E1 ≥ 0.5 and 1000 < E1 × F1 × W1 < 5000, or, E1 ≥ 0.5 and 3000 < E1 × F1 × W1 < 20000.

[0111] In some embodiments, the pulse electric field module includes a first electrode and a second electrode arranged relatively spaced apart, and the pulping device may further include a measuring unit (not shown) for 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 strength.

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

[0113] In some embodiments, the pulping equipment also includes a liquid inlet module and a liquid discharge module, and the pulping device may also include a water exchange unit (not shown) for controlling the discharge of liquid in the pulping chamber; or, in the water exchange stage before the pulping stage, the liquid discharge module is controlled to discharge the liquid in the pulping chamber; before the pulping stage, the liquid inlet module is controlled to inject liquid into the pulping chamber and obtain the liquid volume in the pulping chamber; when the liquid volume in the pulping chamber reaches a first preset liquid volume, the injection of liquid into the pulping chamber is stopped and the pulping stage is entered.

[0114] In some embodiments, the pulping equipment also includes a heating module, and the pulping device may also include a boiling unit (not shown), which is used to control the heating module to turn on and obtain the second temperature in the pulping chamber during the boiling stage; when the second temperature reaches the second preset temperature, the heating module is controlled to remain on for a first preset period of time and then turned off.

[0115] In some embodiments, the pulping unit can also be used to respond to a heating and boiling instruction, control the pulse electric field module to apply a second pulse electric field to the pulping chamber, and obtain a third temperature in the pulping chamber, wherein the electric field parameters of the second pulse electric field are greater than the electric field parameters of the first pulse electric field; when the third temperature reaches a third preset temperature, the pulse electric field module is controlled to remain on for a second preset period of time and then turn off.

[0116] In some embodiments, the pulping device may further include a preservation unit (not shown), which is used to control the stirring module to stir the liquid in the pulping chamber during the preservation stage; when the stirring time of the liquid in the pulping chamber reaches a third preset time, control the stirring module to stop stirring; and control the pulse electric field module to apply a third pulse electric field to the pulping chamber to sterilize the food.

[0117] In some embodiments, the electric field strength and pulse width of the third pulse electric field are E3 kilovolts per centimeter and W3 microseconds, respectively. The pulse frequency of the third pulse electric field is F3, the number of times the pulse electric field works per minute, wherein 0.5 <E3<5,1<W3<100,0<F3<2000。

[0118] In some embodiments, the pulping equipment also includes a liquid inlet module and a liquid discharge module, and the pulping device may also include a cleaning unit (not shown), which is used to control the liquid inlet module to inject liquid into the pulping chamber and the stirring module to stir the liquid in the pulping chamber during the cleaning stage; when the stirring time of the liquid in the pulping chamber reaches a fourth preset time, the liquid discharge module is controlled to discharge the liquid in the pulping chamber.

[0119] In some embodiments, the pulping equipment also includes a heating module, a liquid inlet module and a liquid discharge module, and a cleaning unit, which is used to control the liquid inlet module to inject liquid into the pulping chamber and control the heating module to turn on and obtain a fourth temperature in the pulping chamber during the cleaning stage; when the fourth temperature in the pulping chamber reaches a fourth preset temperature, control the pulse electric field module to apply a third pulse electric field to the pulping chamber to sterilize the pulping chamber; when the duration of applying the third pulse electric field reaches a fifth preset duration, control the liquid discharge module to discharge the liquid in the pulping chamber.

[0120] In some embodiments, the cleaning unit is used to control the liquid inlet module to inject liquid into the pulping chamber during the cleaning stage; control the stirring module to stir the liquid in the pulping chamber; control the heating module to turn on to heat the liquid in the pulping chamber to a fifth preset temperature, wherein the fifth preset temperature is greater than the fourth preset temperature; and control the liquid discharge module to discharge the liquid in the pulping chamber when the heating module is turned on for a sixth preset time.

[0121] Based on the same inventive concept, an embodiment of the present application also provides a pulping device. Figure 8 A structural schematic diagram of a pulping device according to an embodiment of the present application is shown, wherein the pulping device includes one or more memories 804, one or more processors 802, and at least one computer program (computer program instruction) stored in the memory 804 and executable on the processor 802. When the processor 802 executes the computer program, the method described above is implemented.

[0122] Among them, Figure 8In the embodiment of the present invention, a bus architecture (represented by bus 800) is shown, which may include any number of interconnected buses and bridges, and bus 800 links 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 peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described 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, namely 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 may be used to store data used by processor 802 when performing operations.

[0123] Based on the same inventive concept, an embodiment of the present application provides a computer-readable storage medium, in which computer program instructions are stored. When the computer program instructions are executed by a processor, the processor is prompted to implement the steps of the method as described above.

[0124] Based on the same inventive concept, an embodiment of the present application provides a computer program product, including a computer program. When the computer program product is executed by a processor, it prompts the processor to implement the steps of the method as 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 a computer-readable medium or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present 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, hard wiring, or a combination of any of these. In addition, each functional unit may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit.

[0126] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0127] The units described as separate components may or may not be physically separated, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed in multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

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

[0129] The above description is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A pulping method, applied to a pulping device, characterized in that: The pulping equipment comprises a pulping chamber, a pulse electric field module and a stirring module, wherein the pulse electric field module and the stirring module are both located in the pulping chamber, and the method comprises: In the enzyme inactivation stage, the pulse electric field module is controlled to apply a first pulse electric field into the pulping chamber to inactivate enzymes in the food in the pulping chamber; wherein the height of the liquid in the pulping chamber is higher than the surface of the food; In the pulping stage, the stirring module is controlled to stir the liquid in the pulping chamber and the enzyme-inactivated food to obtain pulp; In the pulping stage, in response to a heating and boiling instruction, the pulsed electric field module is controlled to be turned on at least once, so that the temperature in the pulping chamber in the pulping stage is higher than the temperature in the pulping chamber in the enzyme inactivation stage.

2. The pulping method according to claim 1, characterized in that: The values of the electric field strength and pulse width of the first pulsed electric field are correspondingly E1 kV / cm and W1 μs, and the value of the pulse frequency of the first pulsed electric field is the number of working times per minute F1 of the pulsed electric field, where E1 ≥ 0.5 and 1000 < E1 × F1 × W1 < 5000, or, E1 ≥ 0.5 and 3000 < E1 × F1 × W1< 20000.

3. The pulping method according to claim 2, characterized in that: The pulse electric field module comprises a first electrode and a second electrode arranged at a relative interval, and the electric field strength is obtained by the following steps: obtaining a voltage difference and a shortest distance between the first electrode and the second electrode; The voltage difference is divided by the shortest distance to obtain the electric field strength.

4. The pulping method according to claim 1, characterized in that: After controlling the pulse electric field module to apply the first pulse electric field into the pulping chamber, the method further includes: In the enzyme inactivation stage, obtaining a first temperature in the pulping chamber; When the first temperature is greater than a first preset temperature, stopping applying the first pulse electric field; And / or, in the enzyme inactivation stage, the rotation speed of the stirring module is controlled to be less than 1000 r / min.

5. The pulping method according to claim 1, characterized in that: After the enzyme inactivation stage, the method further comprises: Controlling the discharge of liquid in the pulping chamber; Alternatively, the pulping equipment further comprises a liquid inlet module and a liquid discharge module, and the method comprises: In the water changing stage before the pulping stage, controlling the liquid draining module to drain the liquid in the pulping chamber; Before the pulping stage, controlling the liquid inlet module to inject liquid into the pulping cavity and obtaining the amount of liquid in the pulping cavity; When the amount of liquid in the pulping cavity reaches a first preset amount of liquid, the injection of liquid into the pulping cavity is stopped, and the pulping stage is entered.

6. The pulping method according to claim 1, characterized in that: The pulping equipment further comprises a heating module. After the enzyme inactivation stage, the method further comprises: In the boiling stage, the heating module is controlled to be turned on, and a second temperature in the pulping chamber is obtained; When the second temperature reaches a second preset temperature, the heating module is controlled to remain turned on for a first preset time and then turned off.

7. The pulping method according to claim 1, characterized in that: The step of controlling the pulse electric field module to be turned on at least once in response to a heating and boiling instruction in the pulping stage comprises: In response to the heating and boiling instruction, the pulsed electric field module is controlled to apply a second pulsed electric field into the pulping chamber, and a third temperature in the pulping chamber 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; When the third temperature reaches a third preset temperature, the pulse electric field module is controlled to remain turned on for a second preset time period and then turned off.

8. The pulping method according to claim 1, characterized in that: 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; When the duration of stirring the liquid in the pulping chamber reaches a third preset duration, controlling the stirring module to stop stirring; The pulse electric field module is controlled to apply a third pulse electric field into the pulping chamber to sterilize the food.

9. The pulping method according to claim 8, characterized in that: The electric field intensity and pulse width of the third pulse electric field are E3 kilovolts per centimeter and W3 microseconds, respectively. The pulse frequency of the third pulse electric field is F3, the number of times the pulse electric field works per minute, wherein 0.5 <E3<5,1<W3<100,0<F3<2000。 10. The pulping method according to claim 1, characterized in that: The pulping equipment further comprises a liquid inlet module and a liquid discharge module. After the pulping stage, the method further comprises: In the cleaning stage, the liquid inlet module is controlled to inject liquid into the pulping chamber, and the stirring module is controlled to stir the liquid in the pulping chamber; When the duration of stirring the liquid in the pulping chamber reaches a fourth preset duration, the liquid discharge module is controlled to discharge the liquid in the pulping chamber.

11. The pulping method according to claim 1, characterized in that: The pulping equipment further comprises a heating module, a liquid inlet module and a liquid discharge module. After the pulping stage, the method further comprises: In the cleaning stage, the liquid inlet module is controlled to inject liquid into the pulping chamber, and the heating module is controlled to turn on to obtain a fourth temperature in the pulping chamber; When the fourth temperature in the pulping cavity reaches a fourth preset temperature, controlling the pulse electric field module to apply a third pulse electric field into the pulping cavity to sterilize the pulping cavity; When the duration of applying the third pulse electric field reaches a fifth preset duration, the liquid discharge module is controlled to discharge the liquid in the pulping chamber.

12. The pulping method according to claim 11, characterized in that: After controlling the liquid discharge module to discharge the liquid in the pulping chamber, the method further includes: In the cleaning stage, the liquid inlet module is controlled to inject liquid into the pulping chamber; Controlling the stirring module to stir the liquid in the pulping chamber; Controlling the heating module to turn on, so as to heat the liquid in the pulping chamber to a fifth preset temperature, wherein the fifth preset temperature is greater than the fourth preset temperature; When the opening time of the heating module reaches a sixth preset time, the liquid draining module is controlled to drain the liquid in the pulping chamber.

13. A pulping device, comprising a processor and a memory, characterized in that: The memory stores computer program instructions that can be executed by the processor, and when the processor executes the computer program instructions, the steps of the method according to any one of claims 1 to 12 are implemented.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, which, when executed by a processor, prompt the processor to implement the steps of the method according to any one of claims 1 to 12.

15. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the processor is prompted to implement the steps of the method according to any one of claims 1 to 12.

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