Method for increasing lycopene content under intensive pulse light sterilization

Abstract

The invention discloses a method for increasing the content of lycopene under intensive pulse light sterilization. The method comprises the following steps: acquiring characterization information of an object subjected to intensive pulse light sterilization; based on the characterization information, obtaining an object which can be sterilized by strong light, and obtaining a sterilized object; obtaining the appearance of the sterilized object, and obtaining the maturity of the sterilized object; setting a sterilization cluster for the sterilized object based on the maturity; based on the sterilization cluster, acquiring intensive pulse light sterilization parameters, and performing sterilization treatment to obtain a sterilized object; the sterilized object is subjected to refrigeration treatment, the lycopene content of the sterilized object in the refrigeration period is obtained, and the lycopene content after refrigeration is obtained; and based on the content of the lycopene after refrigeration and the appearance of the sterilized object, adjusting the pulsed intense light sterilization parameters. The problem that the lycopene content is reduced due to intensive pulse light sterilization is solved, and the lycopene content is increased.

Description

Technical Field

[0001] The present application belongs to the technical field of agricultural product sterilization, and specifically, relates to a method for increasing lycopene content under pulsed intense light sterilization. Background Art

[0002] Currently, more consumers have high demands for the nutritional content of agricultural products. However, a large number of nutrients will decrease with increasing temperature, which does not meet consumers' demand for the nutritional content of fresh agricultural products. However, sterilization is often necessary for the preservation of fresh farm products. For this reason, pulsed light sterilization technology has emerged. However, in the use of pulsed light technology, it has been found that it can cause a significant decrease in lycopene in some fresh agricultural products rich in lycopene. Especially during long-term storage, after being exposed to strong light, although the lycopene content will increase in a short period of time, the lycopene in the agricultural products will also be more easily hydrolyzed and its activity will decrease during storage, which will lead to a decrease in the lycopene content that can be absorbed by the human body.

[0003] Therefore, how to ensure that the lycopene content can be effectively protected when using pulsed light sterilization technology, thereby increasing the lycopene content compared to traditional sterilization technology, is a technical problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0004] In order to ensure that the lycopene content in fresh agricultural products can be increased when using pulsed intense light technology compared to traditional technical application methods, this application discloses a method for increasing the lycopene content under pulsed intense light sterilization, specifically: A method for increasing lycopene content under pulsed intense light sterilization, the method comprising: Obtain characterization information of objects sterilized by pulsed intense light; Based on the characterization information, obtaining an object that can be sterilized by strong light to obtain a sterilized object; Obtaining the appearance of the sterilized object and the maturity of the sterilized object; Setting a sterilization cluster for the sterilized object based on the maturity; Based on the sterilization cluster, pulsed intense light sterilization parameters are obtained, and sterilization treatment is performed to obtain a sterilized object; refrigerating the sterilized object, obtaining the lycopene content of the sterilized object during the refrigeration period, and obtaining the lycopene content after refrigeration; The pulsed light sterilization parameters are adjusted based on the lycopene content after refrigeration and the appearance of the sterilized object.

[0005] Optionally, obtaining characterization information of the object sterilized by pulsed intense light includes: The characterization information of the object to be sterilized by pulsed intense light includes variety, density, color and integrity; Based on the color recognition module, the color of the object to be sterilized by pulsed intense light is obtained; Obtaining the density of the object to be sterilized by pulsed intense light based on a density calculation module; The integrity of the object sterilized by pulsed intense light is obtained based on the integrity detection module.

[0006] Optionally, acquiring an object that can be sterilized by strong light based on the characterization information to obtain a sterilized object includes: Based on the integrity parameter of the characterization information, the damage information of the object sterilized by pulsed intense light is obtained; if the object sterilized by pulsed intense light is damaged, the object sterilized by pulsed intense light is discarded, and a complete object is obtained; Based on the variety information in the characterization information, a preset color range and a preset density range of the object to be sterilized by pulsed intense light are obtained; Obtaining a measured color parameter and a measured density parameter of the complete object, and comparing them with the preset color range and the preset density range respectively; The complete object whose measured color parameter and measured density parameter are both within the preset color range and the preset density range is obtained to obtain a sterilized object.

[0007] Optionally, obtaining the appearance of the sterilized object and obtaining the maturity of the sterilized object includes: The appearance of the sterilized object includes color depth and reflectivity; Based on the color acquisition module, the color of the sterilized object is acquired to obtain the color of the sterilized object; Comparing the color of the sterilized object with a preset color depth level to obtain the color depth level of the sterilized object; Based on the reflectivity measurement module, the reflectivity of the sterilized object is obtained, and the smoothness of the sterilized object is obtained; Comparing the smoothness of the sterilized object with a preset smoothness level to obtain the smoothness level of the sterilized object; The maturity of the sterilized object is obtained based on the smoothness level of the sterilized object and the color depth level of the sterilized object.

[0008] Optionally, setting a sterilization cluster for the sterilized object based on the maturity includes: Acquire a plurality of sterilized objects, and respectively acquire the maturity of each sterilized object; The sterilized objects with the same maturity are placed in the same cluster to obtain a sterilization cluster.

[0009] Optionally, obtaining pulsed intense light sterilization parameters based on the sterilization cluster and performing sterilization to obtain a sterilized object includes: Obtaining the color distribution status of all the sterilized objects and obtaining the color distribution of the sterilized objects; setting an information label for the sterilized object based on the color distribution; Based on the information tag, pulsed intense light sterilization parameters are obtained, and sterilization treatment is performed to obtain a sterilized object.

[0010] Optionally, obtaining pulsed intense light sterilization parameters based on the information tag and performing sterilization to obtain a sterilized object includes: Based on the information tag, obtaining the position of the sterilized object, the color distribution and the variety information of the sterilized object; Based on the variety information and the maturity of the sterilized object, a pulsed light sterilization parameter range is obtained; Based on the position of the sterilized object, obtaining a group of pulsed strong light emitting devices for the sterilized object; Obtaining the color distribution position of the first pulsed strong light emitting device and the sterilized object when the sterilized object arrives at the pulsed strong light emitting device group, and obtaining the color-first pulsed strong light emitting device correspondence; Based on the color-first pulsed intense light emitting device correspondence and the rotation speed of the sterilized object, adjusting the rotation speed of the sterilized object in the pulsed intense light emitting device group area; Based on the rotation speed and the pulsed strong light sterilization parameter range, the pulsed strong light sterilization parameters of all the pulsed strong light emitting devices in the pulsed strong light emitting device group are adjusted, and the outer surface of the sterilized object is fully sterilized to obtain a sterilized object.

[0011] Optionally, refrigerating the sterilized object and obtaining the lycopene content of the sterilized object during the refrigeration period, obtaining the lycopene content after refrigeration, includes: Performing a microbial content test on the sterilized object to obtain a microbial residue amount; refrigerating the sterilized object whose microbial residue is not higher than a preset microbial residue; The lycopene content of the sterilized object after refrigeration treatment is obtained, and the lycopene content after refrigeration is obtained.

[0012] Optionally, adjusting the pulsed light sterilization parameters based on the lycopene content after refrigeration and the appearance of the sterilized object includes: Randomly obtaining the lycopene content after refrigeration, and obtaining the average value of the lycopene reduction; Obtaining the sterilized object whose average lycopene reduction value is higher than a preset average lycopene reduction value, and obtaining the corresponding pulsed intense light sterilization parameters; Acquire new pulsed intense light sterilization parameters within the pulsed intense light sterilization parameter range to obtain adjusted pulsed intense light sterilization parameters; Replacing the pulsed intense light sterilization parameters with the adjusted pulsed intense light sterilization parameters, and performing sterilization on the sterilized object; Obtaining a sterilized object sterilized based on the adjusted pulsed intense light sterilization parameters, performing a refrigerated storage process, and obtaining an adjusted average value of lycopene reduction; The adjusted lycopene reduction mean value is compared with the preset lycopene reduction mean value, and the pulsed intense light sterilization parameters are replaced with the adjusted pulsed intense light sterilization parameters until the adjusted lycopene reduction mean value is no higher than the preset lycopene reduction mean value.

[0013] Optionally, also include: When the adjusted average value of the lycopene reduction is always not lower than the preset average value of the lycopene reduction, obtaining the information label of the sterilized object; Based on the information tag of the sterilized object, obtaining the pulsed intense light sterilization parameter range corresponding to the sterilized object; Adjusting the pulsed intense light sterilization parameter range to obtain an adjusted pulsed intense light sterilization parameter range; Based on the adjusted pulsed intense light sterilization parameter range, sterilizing the sterilized object, and obtaining the adjusted average value of lycopene reduction; Obtaining, within the adjusted pulsed intense light sterilization parameter range, a pulsed intense light sterilization parameter range corresponding to when the adjusted lycopene reduction mean value is not higher than the preset lycopene reduction mean value, and obtaining a new pulsed intense light sterilization parameter range; A correspondence between the variety information in the information tag and the new pulsed intense light parameter range is established to obtain the pulsed intense light sterilization parameter range corresponding to the variety information, thereby obtaining the pulsed intense light sterilization parameter range corresponding to the variety.

[0014] The beneficial effects of this application include: 1. Improved accuracy in setting pulsed light sterilization parameters. In the technical solution of this application, based on the characterization information of the object to be sterilized by pulsed light, preset pulsed light sterilization parameters are screened. The sterilized object is then sterilized based on these parameters. Furthermore, based on the maturity data of the sterilized object, the pulsed light sterilization parameters are further adjusted. This allows the pulsed light sterilization parameters to be set entirely based on the actual performance of the sterilized object, achieving precise setting of the pulsed light sterilization parameters.

[0015] 2. Full-process control of pulsed light sterilization is achieved. In the technical solution of this application, the objects to be sterilized by pulsed light are screened, and only agricultural products that meet the requirements for pulsed light sterilization are sterilized. The lycopene content after sterilization is then determined, and based on this parameter, the pulsed light sterilization parameters are adjusted to better meet the lycopene increase demand. At the same time, the already set pulsed light sterilization parameter range can also be adjusted, thereby further improving the setting accuracy of the parameter range.

[0016] 3. Achieve personalized sterilization operations for sterilized objects. The technical solution of this application determines the appearance of each sterilized object and sets parameters based on the appearance. At the same time, it can also meet the needs of sterilized objects with uneven color distribution. Different pulsed high-intensity light sterilization parameters are set for different color distribution areas, thereby ensuring that the most appropriate pulsed high-intensity light sterilization parameters are used for different areas, maximizing the lycopene content. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments of the present application or the prior art. Obviously, the following description is only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The drawings are used to provide a further understanding of the present disclosure and constitute part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure, but do not constitute a limitation of the present disclosure. In the drawings: Figure 1 This is a flow chart of a method for increasing lycopene content under pulsed intense light sterilization provided in an embodiment of the present application; Figure 2 A schematic top view of a system for enhancing lycopene content under pulsed intense light sterilization provided in an embodiment of the present application; Figure 3 This is a top view of a group of pulsed light emitting devices of a system for increasing lycopene content under pulsed light sterilization provided in an embodiment of the present application.

[0018] The numbers in the accompanying drawings mean: 1, conveyor belt; 2, pulsed light emitting device. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In addition, in the embodiments of the present application, "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0020] Fresh agricultural products, especially those rich in lycopene, usually have high water content and are rich in VC. At the same time, they usually have poor storage resistance. This leads to extremely high sterilization requirements for these agricultural products. At the same time, sterilization methods such as heating and freezing cannot be used. Pulsed strong light sterilization technology is currently being widely used. However, in the use of pulsed strong light sterilization technology, pulsed strong light has high energy. When treating fresh agricultural products rich in lycopene, it may cause changes in the structure of lycopene, making it more susceptible to oxidation and destruction, thereby causing a decrease in lycopene content. For example, strong light may trigger isomerization reactions of the conjugated double bonds in the lycopene molecule, reducing its stability and thus affecting its content in cherry tomatoes. In addition, even if the lycopene content is not significantly reduced, pulsed strong light may affect its activity. The activity of lycopene is closely related to the integrity of its molecular structure. Pulsed strong light may cause subtle changes in the molecular structure of lycopene, thereby affecting its antioxidant, anti-cancer and other biological activities. From a macro perspective, these two types of negative effects will lead to a decrease in the content of lycopene. In other words, the current use of pulsed strong light sterilization technology can easily lead to unreasonable lighting parameters, resulting in a decrease in the content of lycopene.

[0021] In order to solve the problems of the prior art, this application discloses a method for increasing lycopene content under pulsed intense light sterilization. It should be noted in advance that the lycopene content increase mentioned in this application includes two aspects. First, after pulsed intense light irradiation, lycopene synthase genes (such as Psy and Lcyb) are activated, thereby increasing lycopene content. Second, the amount of lycopene hydrolysis and activity reduction is reduced. The combined effect of these two aspects results in an increase in lycopene content. Figure 1 FIG. 1 is a flow chart of a method for increasing lycopene content under pulsed intense light sterilization provided in an embodiment of the present application, comprising: S110: Obtain characterization information of the object to be sterilized by pulsed intense light.

[0022] S120. Based on the characterization information, obtain an object that can be sterilized by strong light to obtain a sterilized object.

[0023] S130: Obtain the appearance of the sterilized object and the maturity of the sterilized object.

[0024] S140: Setting a sterilization cluster for the sterilized object based on the maturity.

[0025] S150 . Based on the sterilization cluster, obtain pulsed intense light sterilization parameters, perform sterilization processing, and obtain a sterilized object.

[0026] S160: refrigerate the sterilized object, obtain the lycopene content of the sterilized object during the refrigeration period, and obtain the lycopene content after refrigeration.

[0027] S170. Adjust the pulsed light sterilization parameters based on the lycopene content after refrigeration and the appearance of the sterilized object.

[0028] The purpose of all the above steps is to obtain characterization information of the objects to be sterilized by pulsed light, screen out the objects that can actually be used for pulsed light sterilization, and then further determine the pulsed light sterilization parameters based on the actual performance of the objects, analyze and determine the lycopene content after treatment, adjust the pulsed light sterilization parameters, and form a feedback adjustment mechanism to improve the rationality of the setting of pulsed light sterilization parameters.

[0029] The following are the details of all the above steps: As described in step S110, the purpose of this step is to screen the objects that need to be sterilized by pulsed intense light, and to remove those that are damaged, overripe, etc. In overripe objects, the lycopene itself has been hydrolyzed or its activity has decreased, making it unnecessary for pulsed intense light sterilization. Therefore, it needs to be removed before the actual sterilization process. Specifically: S111. The characterization information of the object to be sterilized by pulsed intense light includes variety, density, color and integrity.

[0030] The purpose of this step is that different varieties of sterilized objects will result in different lycopene contents, as well as different densities and colors indicating normal ripeness. Therefore, it is necessary to determine the variety of the object being processed.

[0031] Among them, the variety parameters can be determined by directly inputting them into the sterilization system.

[0032] The characterization information may also include other information, such as shape features, appearance uniformity features, etc.

[0033] S112. Obtain the color of the object to be sterilized by pulsed light based on a color recognition module.

[0034] The purpose of this step is that the color of sterilized objects is often closely related to maturity. For example, when cherry tomatoes are overripe, although the lycopene content decreases, the color may be darker than cherry tomatoes of normal maturity due to factors such as decreased water content and volume. Therefore, it is necessary to determine the color of the object.

[0035] Among them, the color recognition module can be determined based on the corresponding recognition module, and this application does not impose any restrictions.

[0036] S113. Obtain the density of the object to be sterilized by pulsed intense light based on a density calculation module.

[0037] The purpose of this step is that during the sterilization process of fresh agricultural products, if they are over-ripe, their density may decrease due to factors such as dehydration and damage. Therefore, it is necessary to determine the density of the object by setting up a density calculation module.

[0038] Wherein, based on the weighing device, the weight of the object to be sterilized by pulsed intense light is obtained for determination.

[0039] Among them, based on the image processing system, the volume of the object being sterilized by pulsed light is obtained, and then the density is calculated.

[0040] In some embodiments, given the computational limitations of the entire system, an imprecise density measurement method can be employed. Specifically, the length, width, and height of the object being sterilized by pulsed light are obtained, and the volume of the resulting cuboid is calculated based on these three parameters. The imprecise density can then be directly calculated based on this volume parameter. In this approach, the preset density setting also needs to be adjusted to match the calculation result obtained using this method.

[0041] S114. Obtain the integrity of the object sterilized by pulsed intense light based on the integrity detection module.

[0042] The purpose of this step is to screen objects that are damaged and therefore do not require pulsed light sterilization.

[0043] Among them, for the integrity detection module set up, it can use various detection methods such as vision and ultrasound to determine whether the object sterilized by pulsed light has integrity, and this application does not impose any restrictions.

[0044] The beneficial effect of step S110 is that, by setting and determining a variety of characterization parameters of the object to be sterilized by pulsed intense light, the actual state of the object can be better analyzed, and it can be analyzed whether the pulsed intense light sterilization technology can be applied to the object for sterilization.

[0045] As described in step S120, the purpose of this step is to determine whether each object can be sterilized using pulsed light sterilization technology based on the obtained characterization information, so as to eliminate the worthless objects to be sterilized by pulsed light sterilization. In addition, in the screening of sterilized objects, the severity of the problems existing in the objects should be considered and the objects should be eliminated based on the severity. Specifically: S121. Based on the integrity parameter of the characterization information, the damage information of the object sterilized by pulsed intense light is obtained. If the object sterilized by pulsed intense light is damaged, the object sterilized by pulsed intense light is discarded, and a complete object is obtained.

[0046] The goal of this step is to screen the objects to be sterilized. If the objects to be sterilized by pulsed strong light are damaged, on the one hand, there may be microbial contamination inside the objects, and this pulsed strong light sterilization technology cannot achieve an effective sterilization effect. On the other hand, the objects are usually not used for fresh product preservation in the modern food processing industry, but will be made into other types of processed foods. Such damaged objects are obviously contrary to the technical application scenarios of this application, so they need to be eliminated.

[0047] When it is determined that the object being sterilized by pulsed intense light is damaged, the object is discarded and the remaining object is a complete object.

[0048] S122. Based on the variety information in the characterization information, obtain a preset color range and a preset density range of the object to be sterilized by pulsed light.

[0049] The purpose of this step is to further screen the complete objects and remove over-mature objects. At the same time, different varieties have different densities and colors in normal maturity and over-mature states. Therefore, in the specific processing, it is necessary to set the corresponding density range and color range based on the variety information to determine the maturity status.

[0050] For the acquired or set variety information, a preset color range and a preset density range may be directly set based on its own characteristics.

[0051] In some embodiments, the preset color range interval and the preset density range interval are automatically calculated and set based on historical processing data of objects sterilized by pulsed light.

[0052] The obtained preset color range and preset density range mean that when the actually measured density and color fall into these two ranges respectively, it means that the object can be used for pulsed light sterilization.

[0053] S123: Obtain the actual measured color parameter and the actual measured density parameter of the complete object, and compare them with the preset color range and the preset density range, respectively.

[0054] The purpose of this step is to obtain objects sterilized by pulsed light only after two types of preset range intervals have been set.

[0055] The obtained measured color parameters and measured density parameters are compared with the preset color range and the preset density range respectively.

[0056] S124. Acquire the complete object whose measured color parameter and measured density parameter are both within the preset color range and the preset density range to obtain a sterilized object.

[0057] The purpose of this step is to obtain the sterilized object.

[0058] The two types of measured parameters are compared with the corresponding preset range intervals respectively. If both are within the corresponding preset range intervals, it is considered that the object can perform subsequent pulsed light sterilization operations, that is, the sterilized object is obtained.

[0059] The beneficial effect of step S120 is that a large number of pulsed light sterilized objects are screened to remove over-ripe, under-ripe or damaged objects, and the objects finally obtained are objects that meet the requirements of pulsed light sterilization technology processing, thus obtaining sterilized objects.

[0060] As described in step S130, the purpose of this step is to ensure the accuracy of the pulsed light sterilization operation. For the obtained sterilized object, further color collection and analysis are performed to further determine the maturity. Based on the obtained maturity, the corresponding basic pulsed light sterilization parameters can be determined based on the obtained parameters. Specifically: S131. The appearance of the sterilized object includes color depth and reflectivity.

[0061] The purpose of this step is to determine the parameters for the maturity of the sterilized object, so that subsequent processing can be performed based on these two parameters. Generally, the color depth and reflectivity of the sterilized object can be used to fully illustrate the maturity of the object, so this application sets these two parameters.

[0062] Among them, the analysis of maturity can also include other parameters, such as the uniformity of color distribution of the sterilized object, the uniformity of surface wrinkle distribution, etc.

[0063] S132. Based on the color acquisition module, obtain the color of the sterilized object to obtain the color of the sterilized object.

[0064] The purpose of this step is that color is obviously a key indicator in determining the maturity of the sterilized object, so the color of the sterilized object is determined for subsequent maturity judgment.

[0065] Among them, the color acquisition module needs to have a higher or much higher color recognition accuracy than the color recognition module to achieve high-precision analysis of the color of the sterilized object.

[0066] During operation of the color acquisition module, the sterilized object needs to be rotated at all angles and all surfaces, and the color distribution state of the sterilized object is obtained based on the color acquisition module.

[0067] Among them, the color distribution status of the sterilized object also needs to be marked on the sterilized object, so as to achieve specific marking of the sterilization area.

[0068] In some embodiments, color acquisition is performed using a segmented scanning method. Specifically, the sterilized object is rotated at the same angle each time, and the color distribution within each rotation angle range is analyzed. For example, the color distribution of the outer surface of the sterilized object within each rotation angle range is acquired.

[0069] S133: Compare the color of the sterilized object with a preset color depth level to obtain the color depth level of the sterilized object.

[0070] The purpose of this step is to determine the color of the sterilized object obtained, and then obtain the color representation of the sterilized object based on the obtained color parameters.

[0071] Among them, for all the color data obtained, the mean is calculated, and the obtained mean is the color of the sterilized object.

[0072] Among them, for the preset color depth level, the color range intervals under different maturity conditions are obtained according to the variety of the sterilized object, thereby forming a correlation relationship between the color range interval and maturity.

[0073] In some embodiments, when color parameters are obtained by segmented scanning, each obtained parameter may be compared with a preset color depth level to obtain the maturity of all areas on the sterilized object.

[0074] S134. Based on the reflectivity measurement module, obtain the reflectivity of the sterilized object and obtain the smoothness of the sterilized object.

[0075] The purpose of this step is that when the sterilized object is overripe, the water content in it will decrease, and its smoothness will decrease. This characteristic is manifested in a large number of objects rich in lycopene, such as tomatoes, strawberries, blueberries, etc.

[0076] Among them, the reflectivity measurement module provided can be implemented using a visual module or other technologies that can achieve the measurement effect, and this application does not limit this.

[0077] S135: Compare the smoothness of the sterilized object with a preset smoothness level to obtain the smoothness level of the sterilized object.

[0078] The purpose of this step is to obtain the smoothness of the sterilized object, which is also related to the maturity. Therefore, it is necessary to obtain the smoothness level by comparing the measured smoothness with the preset smoothness level.

[0079] Among them, the method adopted in this step is the same as the step principle of step S133, and the technical means adopted are similar, which will not be repeated here.

[0080] S136. Obtain the maturity of the sterilized object based on the smoothness level and the color depth level of the sterilized object.

[0081] The purpose of this step is to calculate and determine the specific maturity parameters of the sterilized object based on the two results obtained.

[0082] Among them, considering that the objects of use of this application are all fresh agricultural products rich in lycopene, the relationship between color and smoothness and maturity in their specific maturity performance varies greatly, so maturity needs to be determined based on different variety information.

[0083] The maturity can be determined based on the following equation: ; in, M Indicates the maturity of the sterilized object; q 1 Indicates the weight of the smoothness grade set based on variety information in the maturity result; q 2Indicates the weight of the color depth grade set based on variety information in the maturity result; i An index representing the number of regions in the smoothness and color depth analysis of the sterilized object; j Indicates the total number of area indexes in the smoothness and color depth analysis of the sterilized object; S i Indicates the i smoothness levels; S Indicates the total amount of smoothness levels, which can be the sum of all smoothness levels; C i Indicates the i color depth levels; C Indicates the total amount of color depth levels, which can be the sum of all color depth level data.

[0084] The obtained maturity and the two weights set therein can be set based on the characteristics of the sterilized object itself.

[0085] Among them, other equations can also be used to determine the maturity, and this application does not limit it here.

[0086] The beneficial effect of step S130 is that after obtaining the sterilized object, the maturity of the sterilized object is further determined, so that in the subsequent actual sterilization operation, the pulsed strong light sterilization parameters can be selected according to its maturity parameters to accurately determine the parameters. At the same time, for the sterilized object, the distribution area of ​​its color and smoothness is also determined, so that different pulsed strong light sterilization parameters can be used for sterilization operations on a single sterilized object.

[0087] As described in step S140, the purpose of this step is to, after determining the maturity of the sterilized objects, place the sterilized objects of the same maturity into the same cluster in order to improve the sterilization efficiency, and then set the subsequent pulsed light sterilization parameters based on the maturity corresponding to the cluster. Specifically: S141. Acquire a plurality of sterilized objects, and respectively acquire the maturity of each sterilized object.

[0088] The purpose of this step is to determine the maturity of each sterilized object, thereby laying the foundation for the subsequent sterilization cluster establishment work.

[0089] Among them, based on the technical solution of step S130, the maturity of each sterilized object can be obtained.

[0090] The obtained maturity parameters may be subjected to maturity deviation analysis, and all sterilized objects whose deviations are within the allowable range may be considered to have the same maturity.

[0091] S142: Place the sterilized objects with the same maturity into the same cluster to obtain a sterilization cluster.

[0092] The purpose of this step is to establish a sterilization cluster by grouping the sterilized objects into the same cluster based on their acquired maturity parameters.

[0093] For each established sterilization cluster, maturity parameters for the sterilized objects of the sterilization cluster are set.

[0094] Among them, a corresponding maturity label can be set for each sterilization object in the sterilization cluster, thereby supporting fine-tuning of pulsed light sterilization parameters in subsequent sterilization operations.

[0095] The beneficial effect of step S140 is that by setting the sterilized objects of the same maturity into the same cluster, it is ensured that all the sterilized objects in the cluster have the same maturity, so that a pulsed light sterilization parameter range can be defined based on the maturity index. The specific sterilization operation is that only the relevant parameters need to be fine-tuned, thereby improving the accuracy of the sterilization process.

[0096] As described in step S150, the purpose of this step is to perform specific sterilization operations on the sterilized objects in the obtained sterilization cluster. Specifically: S151. Obtain the color distribution status of all the sterilized objects, and obtain the color distribution of the sterilized objects.

[0097] The purpose of this step is to obtain sterilized objects, which may have uneven color distribution on their surfaces. For example, for strawberries, the color from the tip to the fruit stem gradually becomes whiter, and the lycopene distribution is gradually reduced. Therefore, for the non-fruit stem part, the pulsed strong light sterilization parameters need to be relatively lowered. In order to further compensate for the sterilization effect, the pulsed strong light sterilization parameters of the fruit stem part need to be increased to improve the overall sterilization performance and avoid excessive decrease in lycopene content.

[0098] Among them, the color of the sterilized object is accurately identified to determine the color distribution of a single sterilized object.

[0099] Among them, in the analysis of the color distribution status of the sterilized object, it is necessary to perform full-angle and full-range detection on the sterilized object to determine the color distribution status of different areas.

[0100] Among them, for the color distribution state, it is necessary to determine the specific color parameters of each area in the sterilized object.

[0101] S152. Setting an information label for the sterilized object based on the color distribution.

[0102] The purpose of this step is to determine the color distribution of the sterilized object, and then set the information tag to carry this information, so that in the specific sterilization operation, the sterilization system can obtain the information tag in advance, and then determine the pulsed light sterilization parameters for the sterilized object in advance, so that the system can prepare for the sterilization of the sterilized object in advance.

[0103] For the obtained color distribution parameters, a pre-order analysis has been implemented in the sterilization system to obtain the color distribution parameters of each sterilized object.

[0104] Among them, for color distribution parameters and sterilized objects, these two types of parameters are set in the information tag, which also contains variety information.

[0105] The information tag can also provide detailed information about color distribution, such as patch distribution, edge line distribution, and uneven distribution.

[0106] Among them, for the set information tags, it is necessary to establish an association relationship between the tag and the corresponding sterilized object.

[0107] S153. Based on the information tag, obtain pulsed light sterilization parameters, perform sterilization treatment, and obtain a sterilized object.

[0108] The purpose of this step is that after obtaining the information tag, the relevant subsystem can determine the pulsed light sterilization parameters in advance based on the information carried in the information tag. Then, after the sterilized object arrives at the sterilization treatment area, the pre-determined pulsed light sterilization parameters can be immediately applied to perform the sterilization operation.

[0109] Among them, based on the obtained information label, the pulsed light sterilization parameters are determined, which mainly include determining the color distribution area in the information label, the specific color expression of each area, etc.

[0110] The obtained pulsed intense light sterilization parameters are used to perform actual sterilization operations on the sterilized object, and the result obtained is the sterilized object.

[0111] The information tag also carries the position of the conveyor belt where the sterilized object is located.

[0112] Among them, such as Figure 2The figure shows a top view of a device for increasing lycopene content under pulsed intense light sterilization according to an embodiment of the present application. The conveyor belt 1 is divided into different conveyor lanes. In this application, there are three conveyor lanes. Each slot corresponds to the same sterilization cluster. A color acquisition module and a reflectance measurement module are provided. The data collected by these two modules are sent to the maturity analysis module to obtain the maturity of the sterilization cluster. The maturity information is then sent to the information tag setting module, so that the configured information tag contains the various information it needs to carry. The information tag setting module then sends the information to the pulsed intense light parameter determination module to determine the pulsed intense light parameter range. At the same time, the data from the color acquisition module is also sent to the pulsed intense light parameter determination module to obtain the color distribution of the sterilized object. Based on these two parameters, the pulsed intense light parameters output by different pulsed intense light emitting devices are determined based on the color distribution of the sterilized object. The obtained parameters are then sent to the pulsed intense light emitting device group for controlling the pulsed intense light parameters.

[0113] The entire step S153 includes a number of specific steps, specifically: S1531. Based on the information tag, obtain the position of the sterilized object, the color distribution and variety information of the sterilized object.

[0114] The purpose of this step is that in the entire sterilization system, the sterilized objects are distributed at different positions on the conveyor belt, and there are different pulsed light emitting devices above the conveyor belt. Therefore, by determining their positions and other parameters, the pulsed light emitting device for sterilizing the sterilized objects can be determined.

[0115] The system identifies the information tag and obtains all parameters in the information tag to determine the location, color distribution and variety information of the sterilized object.

[0116] S1532. Based on the variety information and the maturity of the sterilized object, obtain the pulsed light sterilization parameter range.

[0117] The purpose of this step is to determine the parameter range of pulsed light sterilization after determining the variety information and maturity information of the sterilized object, so that the actual sterilization operation can be performed based on this parameter range.

[0118] Among them, for the pulsed light sterilization parameters, including single pulse content, pulse width and pulse emission frequency, the parameters need to be set.

[0119] Among them, for the set pulsed light sterilization parameter range, two limiting conditions need to be considered, one is the degree of sterilization, and the other is the reduction in lycopene content.

[0120] Among them, the equation for determining the parameter range of pulsed light sterilization can be: ; in, σ Indicates the sterilization degree value in pulsed light sterilization technology; R Indicates the amount of lycopene reduction; m Indicates the parameter type index in the pulsed light sterilization parameters; n Indicates the total number of parameter type indexes in pulsed light sterilization parameters; a m and b m Indicates that in the sterilization degree and the reduction of lycopene content, m The weights of the parameter types; L m Indicates the m The specific value of the parameter type.

[0121] The two types of weight parameters in the above equations can be obtained based on experiments.

[0122] The obtained sterilization degree values ​​and content reduction amounts can be determined based on specific needs.

[0123] Among them, based on the two equations in the equation group, the range intervals of the parameter types can be obtained respectively, and then the range intervals obtained based on the two equations are merged to obtain the parameter range intervals of different parameter types.

[0124] In some embodiments, the parameter ranges of different parameter types that need to be set can also be set based on the experience of technicians.

[0125] Among them, for the obtained maturity parameters, whether for different areas on a single sterilized object or for a single sterilized object, it is necessary to determine based on the parameter ranges of different parameter types obtained and combined with the maturity parameters to obtain the pulsed light sterilization parameter range. The specific equation is: ; in, I Lm Indicates the m Parameter range of pulsed intense light sterilization; M k Indicates the first k The maturity of the sterilized object; p Indicates the number index of the sterilized object in the sterilization group; q Indicates the total number of sterilized objects in the sterilization group; Mp Indicates the first p Maturity of sterilized objects; min L m Indicates the m The minimum value of the pulsed light sterilization parameter; max L m Indicates the m The maximum value of the pulsed light sterilization parameter.

[0126] in, k The value is between 1 and q Obviously, these two values ​​are also included.

[0127] In order to better determine the beneficial effects of this technical solution, numerical calculations were performed based on the adopted equations. It was determined based on the calculations that for cherry tomatoes, when the maturity is normal, the final calculated single pulse energy value range is [300,500] (unit: J), the illumination frequency is [20,40] (unit: times / s), the distance from the light source to the sterilized object is [9,15] (unit: cm), the processing time is [1, 5] (unit: s), and the pulse width is 20 μs.

[0128] S1533. Based on the position of the object to be sterilized, obtain a group of pulsed strong light emitting devices for the object to be sterilized.

[0129] The purpose of this step is that after determining the position of the sterilized object, it is obviously possible to determine the group of pulsed strong light emitting devices corresponding to the sterilized object during the conveyor belt transportation based on its position. In other words, the group of pulsed strong light emitting devices can be directly determined based on the position of the sterilized object.

[0130] The position of the sterilized object is obtained to determine the device group to which it corresponds during its subsequent movement on the conveyor belt.

[0131] Among them, for the set pulsed strong light emitting device group, multiple pulsed strong light emitting devices are set in the conveying direction of the conveyor belt, and the pulsed strong light sterilization parameter range emitted by each device is different. At this time, based on the device group, different devices can be used to jointly sterilize a single sterilized object.

[0132] Among them, such as Figure 3FIG. 1 is a top view schematic diagram of a group of pulsed intense light emitting devices for a system for enhancing lycopene content under pulsed intense light sterilization, provided in an embodiment of the present application. A pulsed intense light parameter determination module is connected to each pulsed intense light emitting device 2, thereby enabling separate control of each pulsed intense light emitting device 2 to adjust the parameters of the emitted pulsed intense light. For each conveyor lane on the conveyor belt 1, no fewer than two pulsed intense light emitting devices 2 are arranged side by side (the number in this figure does not represent the actual number). This ensures that when the sterilized object undergoes rotary sterilization, each color distribution area can be subjected to pulsed intense light sterilization by the corresponding pulsed intense light emitting device 2.

[0133] S1534. Obtain the color distribution positions of the first pulsed strong light emitting device and the sterilized object when the sterilized object arrives at the pulsed strong light emitting device group, and obtain the color-first pulsed strong light emitting device correspondence.

[0134] The purpose of this step is that during the transfer of the sterilized object, its posture is obviously diverse. For a single sterilized object, in order to better improve the sterilization effect, it is necessary to determine the sterilization starting point of the sterilized object. Therefore, based on this requirement, it is necessary to determine the corresponding relationship, and then determine the pulsed light sterilization parameters of different devices in the pulsed light emitting device group based on the corresponding relationship.

[0135] Here, based on the detection device, the posture of the sterilized object is obtained, thereby determining its color distribution state.

[0136] Among them, based on the obtained color distribution state, the specific color when it reaches the first pulse strong light emitting device is analyzed, and a corresponding relationship between the two is established, thereby forming a corresponding relationship between color and the first pulse strong light emitting device.

[0137] The purpose of setting this correspondence is to obtain the starting point of the sterilization operation of the sterilized object and the color of the starting sterilization operation area.

[0138] S1535. Based on the color-first pulsed intense light emitting device correspondence and the rotation speed of the sterilized object, adjust the rotation speed of the sterilized object in the pulsed intense light emitting device group area.

[0139] The purpose of this step is to ensure that the sterilized objects are scanned and sterilized over the entire range during sterilization. However, considering that the spacing between the pulsed light emitting devices is fixed and the color distribution of the sterilized objects is different, it is necessary to adjust the rotation speed of the sterilized objects to ensure full-range sterilization based on different pulsed light emitting devices.

[0140] The conveying speed of the sterilized object and the color distribution of each area are obtained to adjust the rotation speed.

[0141] Among them, for areas with uneven color distribution such as spots, the pulse light parameters of the pulse light emitting device can be kept unchanged to reduce the control difficulty.

[0142] Among them, for the sterilized objects, based on the rotation speed and color distribution, it is ensured that in the pulsed strong light emitting device group, each pulsed strong light emitting device is only responsible for the sterilization treatment of the sterilized objects in one area.

[0143] S1536. Based on the rotation speed and the pulsed intense light sterilization parameter range, adjust the pulsed intense light sterilization parameters of all the pulsed intense light emitting devices in the pulsed intense light emitting device group, and perform full-range sterilization on the outer surface of the sterilized object to obtain a sterilized object.

[0144] The purpose of this step is to determine the pulsed light parameters of each device in the pulsed light device group after obtaining the rotation speed and all parameters in the information tag, and to achieve common sterilization treatment of the sterilized object based on multiple devices.

[0145] The beneficial effect of step S150 is that it can achieve flexible sterilization treatment of sterilized objects with uneven color distribution, and at the same time, based on maturity and color distribution, a group of pulsed strong light emitting devices can be used to achieve common sterilization treatment of the sterilized objects.

[0146] As described in step S160, the purpose of this step is that after the current sterilization treatment of fresh agricultural products, whether during transportation, storage or sales, they need to be stored accordingly. During the storage stage, the lycopene content will drop significantly due to pulsed light sterilization. Therefore, it is necessary to determine whether the sterilization treatment will cause a significant drop in lycopene content during the storage stage based on the actual storage scenario. Specifically: S161. Perform a microbial content test on the sterilized object to obtain a residual microbial amount.

[0147] The purpose of this step is to address the possibility that in some cases, sterilization may not be complete. During storage, microorganisms carried by sterilized objects that have not been completely sterilized may contaminate sterilized objects that have been sterilized. Therefore, microbial content testing is necessary to reduce interference.

[0148] Among them, this application does not limit the microbial detection technology to obtain the microbial residue.

[0149] S162. Refrigerate the sterilized object whose microbial residue is not higher than a preset microbial residue.

[0150] The purpose of this step is to refrigerate all sterilized objects that meet the standards to better suit the actual storage environment.

[0151] Among them, for the preset microbial residual amount, other requirements can be obtained and set based on specific storage requirements.

[0152] S163. Obtain the lycopene content of the sterilized object after refrigeration treatment, and obtain the lycopene content after refrigeration.

[0153] The purpose of this step is that the present application provides a feedback adjustment mechanism for determining the pulsed intense light parameters. Therefore, it is necessary to be able to simulate the lycopene content of the sterilized object after sterilization and use it to adjust the pulsed intense light parameters. Therefore, it is necessary to obtain the lycopene content after refrigeration.

[0154] Among them, for sterilized objects after refrigeration, the refrigeration time is determined according to the storage, transportation and sales process time in real situations.

[0155] The lycopene content after refrigeration is obtained, and the inactive lycopene content is subtracted from the content, and the result obtained is the lycopene content after refrigeration.

[0156] The beneficial effect of step S160 is that, through the refrigeration treatment, on the one hand, the lycopene content after refrigeration can be increased, and on the other hand, the actual storage process of the sterilized object can be simulated, thereby better simulating the change in lycopene content of the sterilized object after storage in reality.

[0157] As described in step S170, the purpose of this step is to adjust the previously used pulsed light parameters based on the analysis of the lycopene content after refrigeration, so as to avoid the pulsed light parameters used causing an excessive decrease in lycopene content. Specifically: S171. Randomly obtain the lycopene content after refrigeration, and obtain the average value of the lycopene reduction; The purpose of this step is to determine the reduction value of the lycopene content, so as to determine the impact of the current pulsed light parameters on the lycopene content.

[0158] The mean value of the lycopene reduction was obtained by summing the selected lycopene contents after refrigeration and calculating the ratio of the sum to the number of lycopene contents after refrigeration, which was the mean value of the reduction.

[0159] The obtained reduction can be obtained by directly calculating the difference between the lycopene content of the sterilized object after refrigeration and the lycopene content of the sterilized object without sterilization.

[0160] S172. Obtain the sterilized objects whose average lycopene reduction value is higher than a preset average lycopene reduction value, and obtain the corresponding pulsed intense light sterilization parameters.

[0161] The purpose of this step is to set a corresponding threshold value for the obtained average value of lycopene reduction, and then determine whether the currently set pulsed light sterilization parameters are reasonable based on the threshold value.

[0162] The preset average value of lycopene reduction may be set based on variety information, freshness information, and the like.

[0163] The corresponding pulsed light sterilization parameter acquisition process can be performed by establishing a correspondence between the sterilized object and the pulsed light sterilization parameters. Specifically, the pulsed light sterilization parameters corresponding to the selected sterilized object can be obtained by recording various characteristics of each sterilized object, obtaining various characteristics of randomly selected refrigerated sterilized objects, and performing feature comparison to obtain the pulsed light sterilization parameters corresponding to the selected sterilized object.

[0164] S173. Acquire new pulsed intense light sterilization parameters from the pulsed intense light sterilization parameter range to obtain adjusted pulsed intense light sterilization parameters.

[0165] The purpose of this step is to adjust the corresponding pulsed light sterilization parameters when it is found that the lycopene reduction amount is higher than the preset value, so as to perform subsequent parameter adjustment operations.

[0166] In the process of adjusting the acquisition of the pulsed intense light sterilization parameters, other parameters may be selected for setting based on the obtained pulsed intense light sterilization parameter range.

[0167] Among them, it should be noted that it is also necessary to record various information such as the color, variety, maturity, etc. of the sterilized objects corresponding to the pulsed strong light sterilization parameters. In the subsequent sterilization process, it is necessary to use the adjusted pulsed strong light sterilization parameters only when it is found that all the above information is exactly the same as the variety, color, maturity, etc. of the randomly sampled sterilized objects.

[0168] S174. Replace the pulsed intense light sterilization parameters with the adjusted pulsed intense light sterilization parameters, and perform sterilization on the sterilized object.

[0169] The purpose of this step is to obtain the adjusted pulsed intense light sterilization parameters, and then use the adjusted pulsed intense light sterilization parameters to perform sterilization after obtaining the sterilized objects with the same various parameters.

[0170] Among them, the original pulsed intense light sterilization parameters are replaced with adjusted pulsed intense light sterilization parameters for sterilization treatment.

[0171] The sterilization method is the same as that described above and will not be described again here.

[0172] S175. Obtain the sterilized object sterilized based on the adjusted pulsed intense light sterilization parameters, perform refrigeration treatment, and obtain the adjusted average value of lycopene reduction.

[0173] The purpose of this step is to determine whether the adjusted pulsed light sterilization parameters can be applied to the actual sterilization process. Therefore, it is obviously necessary to obtain the lycopene content after using the adjusted pulsed light sterilization parameters to analyze the actual effect achieved.

[0174] The cold storage method and the method for determining the average value of the adjusted lycopene reduction are the same as those described above and will not be described in detail here.

[0175] S176. Compare the adjusted mean lycopene reduction amount with the preset mean lycopene reduction amount, and use the adjusted pulsed intense light sterilization parameters to replace the pulsed intense light sterilization parameters until the adjusted mean lycopene reduction amount is no higher than the preset mean lycopene reduction amount.

[0176] The purpose of this step is to verify and apply specific pulsed light sterilization parameters.

[0177] Among them, for the specific application effect of the adjusted pulsed intense light sterilization parameters, if they have been adjusted once, it is considered that the adjusted pulsed intense light sterilization parameters can be directly applied to the sterilization process. If it is found that after one adjustment, a second or even more adjustments are required, the indicator for no longer adjusting is that the average value of lycopene reduction after adjustment is not higher than the preset average value of lycopene reduction.

[0178] Among them, it is also necessary to establish a correspondence between the adjusted pulsed light sterilization parameters and the maturity, distribution color, variety and other information of the sterilized objects. Then, in the subsequent sterilization process, the corresponding pulsed light sterilization parameters can be determined directly based on these obtained parameters.

[0179] The beneficial effect of step S170 is that, based on the obtained pulsed intense light sterilization parameter range, it is actually only a relatively broad numerical range. In this step, when it is found that the selected pulsed intense light sterilization parameters cannot increase the lycopene content, the corresponding specific values ​​are selected from the pulsed intense light sterilization parameter range for sterilization treatment, thereby improving the selection accuracy of the pulsed intense light sterilization parameters.

[0180] In order to better illustrate the beneficial effects of this step, the results were further analyzed based on the data performance. It was found that for the calculated pulse light parameter range, for the single pulse energy, the value was in the range of [300,390] ​​(unit: J), the illumination frequency was in the range of [20,28] (unit: times / s), the distance was in the range of [13,15] (unit: cm), and the processing time was in the range of [1,2.3] (unit: s). It was found that the highest retention rate after 7 days of storage could only reach about 85%, and could not reach 90%, while the single pulse energy was in the range of [420, When the illumination frequency was in the range of

[500] (unit: J), the illumination frequency was in the range of [32,40] (unit: times / s), the distance was in the range of [9,11] (unit: cm), and the illumination time was in the range of [3.8,5] (unit: s), the activity of cherry tomatoes after 7 days of storage decreased significantly, and the increase in total content was low, indicating that strong light would damage the structure of lycopene itself. The maximum retention rate could only reach about 82%, obviously unable to reach 90%. For other ranges, they were able to meet both the sterilization requirements and the lycopene content requirements after storage.

[0181] Further verification by taking special values ​​found that when the single pulse energy was 400J, the frequency was 30 times / s, the distance was 12cm, and the storage temperature was 4°C, it was found that after being irradiated with pulsed strong light, the lycopene content would increase from the initial 2.5mg / 100g to 3.0mg / 100g. After 7 days of storage, the lycopene retention was 2.8g / 100g. After 14 days of storage, there was no mold on the surface, the hardness retention rate was 85%, and the lycopene retention was 2.7mg / 100g. In addition, the energy density can also be used as a pulsed strong light parameter, with a value range of 5J / cm 2 ~12J / cm 2 , found at 8J / cm 2 The lycopene enhancement amount is the largest under 12J / cm 2When the tomato is in a state of excessive energy, it causes slight browning of the cherry tomato skin. Based on the effects of this step and the overall technical solution, it can be considered that the lycopene content in the treated cherry tomatoes is 15% to 20% higher than that in the untreated control group, the lycopene retention rate exceeds 90% after 7 days of storage, the surface microbial inactivation rate is ≥99%, the shelf life is extended to 14 days at 4°C, the polyphenol oxidase (PPO) activity is reduced by 50%, which can delay browning, and the vitamin C loss rate is less than 5%.

[0182] However, in some cases, it is found that within the selected data within the pulsed light sterilization parameter range, the obtained parameters cannot achieve a lycopene reduction average value not higher than the preset lycopene reduction average value. For such cases, it is necessary to determine based on the following steps. Specifically: S17 (1) When the adjusted average value of the lycopene reduction is always not lower than the preset average value of the lycopene reduction, the information label of the sterilized object is obtained.

[0183] The purpose of this step is to determine the effect of adjusting the mean value of lycopene reduction, so as to obtain the pulsed light sterilization parameter range corresponding to the variety information, and the range needs to be adjusted.

[0184] Among them, based on the set information tags, the information carried therein is obtained, including variety, maturity, color distribution, etc. Obviously, specific color parameters can also be analyzed.

[0185] S17 (2) Based on the information tag of the sterilized object, obtain the pulsed intense light sterilization parameter range corresponding to the sterilized object.

[0186] The purpose of this step is to obtain the parameter range of pulsed light sterilization and thus determine the data objects that need to be adjusted.

[0187] Among them, based on the information tag, the corresponding pulsed light sterilization parameter range is directly obtained.

[0188] S17 (3), adjusting the pulsed intense light sterilization parameter range to obtain the adjusted pulsed intense light sterilization parameter range.

[0189] The purpose of this step is to adjust the obtained pulsed intense light sterilization parameter range, thereby obtaining an adjusted pulsed intense light sterilization parameter range.

[0190] Among them, based on the determination equation of the pulsed intense light sterilization parameter range in step S1532, the weight parameters involved are adjusted to obtain the adjusted pulsed intense light sterilization parameter range.

[0191] S17 (4) sterilizes the object to be sterilized based on the adjusted pulsed intense light sterilization parameter range, and obtains the adjusted average value of the lycopene reduction.

[0192] The purpose of this step is to sterilize the object to be sterilized after obtaining the adjusted pulsed light sterilization parameter range.

[0193] The process of obtaining the adjusted mean value of the lycopene reduction amount is the same as the corresponding technical solution above and will not be repeated here.

[0194] S17 (5) Obtain the pulsed intense light sterilization parameter range corresponding to the adjusted pulsed intense light sterilization parameter range when the adjusted lycopene reduction mean value is not higher than the preset lycopene reduction mean value, and obtain a new pulsed intense light sterilization parameter range.

[0195] The purpose of this step is to further determine the adjusted pulsed light sterilization parameter range obtained, so as to find the maximum value of the adjusted pulsed light sterilization parameter. The new pulsed light sterilization parameter range obtained can obtain a more accurate parameter range.

[0196] The method of this step is the same as that in the above text and will not be repeated here.

[0197] S17 (6) establishes a correspondence between the variety information in the information tag and the new pulsed strong light parameter range to obtain the pulsed strong light sterilization parameter range corresponding to the variety information, and obtains the pulsed strong light sterilization parameter range corresponding to the variety.

[0198] The purpose of this step is to establish a corresponding relationship between the corresponding parameters after obtaining the new pulsed light sterilization parameter range, so that the pulsed light sterilization parameter range can be applied based on the parameters.

[0199] Among them, for the obtained new pulsed light sterilization parameter range, it is only necessary to establish a corresponding relationship with the variety information.

[0200] In some embodiments, a correspondence may be established between the variety information, maturity, color and other information and the new pulsed light sterilization parameter range, so that a new pulsed light sterilization parameter range can be adopted based on this type of information.

[0201] The beneficial effect of the above steps S17 (1) to S17 (6) is that when the parameters obtained within the original pulsed light sterilization parameter range cannot meet the requirements for increasing the lycopene content, other methods are used to reset the pulsed light sterilization parameter range so that sterilization can be performed based on this range.

[0202] In order to better illustrate the beneficial effects of the entire technical solution of this application, this application provides the changes in lycopene content during pulsed intense light irradiation, specifically: ; ; ; Based on the above data table, the optimal pulsed light parameters can be obtained, and at the same time, it also meets the specific adjustment needs for the pulsed light parameters in the technical solution of this application.

[0203] Those skilled in the art will understand that all or part of the steps of the above-mentioned method embodiments can be implemented by hardware related to computer program instructions, and the aforementioned computer program can be stored in a non-volatile storage medium. When the computer program is executed, it executes the steps of the above-mentioned method embodiments. Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a non-volatile storage medium. Based on this understanding, the technical solution of the embodiment of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a non-volatile storage medium and includes a number of instructions for enabling an electronic device (which can be a personal computer, server, network device, etc.) to execute all or part of the methods described in each embodiment of the present invention.

[0204] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A method for increasing lycopene content under pulsed light sterilization, characterized in that: The method comprises: Obtaining characterization information of objects sterilized by pulsed intense light; Based on the characterization information, obtaining an object that can be sterilized by strong light to obtain a sterilized object; Obtaining the appearance of the sterilized object and the maturity of the sterilized object; Setting a sterilization cluster for the sterilized object based on the maturity; Based on the sterilization cluster, pulsed intense light sterilization parameters are obtained, and sterilization treatment is performed to obtain a sterilized object; refrigerating the sterilized object, obtaining the lycopene content of the sterilized object during the refrigeration period, and obtaining the lycopene content after refrigeration; The pulsed light sterilization parameters are adjusted based on the lycopene content after refrigeration and the appearance of the sterilized object.

2. The method for increasing lycopene content under pulsed light sterilization according to claim 1, characterized in that: The obtaining of characterization information of the object to be sterilized by pulsed intense light includes: The characterization information of the object to be sterilized by pulsed intense light includes variety, density, color and integrity; Based on the color recognition module, the color of the object to be sterilized by pulsed intense light is obtained; Based on the density calculation module, the density of the object to be sterilized by pulsed intense light is obtained; The integrity of the object sterilized by pulsed intense light is obtained based on the integrity detection module.

3. The method for increasing lycopene content under pulsed light sterilization according to claim 1, characterized in that: The step of obtaining an object that can be sterilized by strong light based on the characterization information to obtain a sterilized object includes: Based on the integrity parameter of the characterization information, the damage information of the object sterilized by pulsed intense light is obtained; if the object sterilized by pulsed intense light is damaged, the object sterilized by pulsed intense light is discarded, and a complete object is obtained; Based on the variety information in the characterization information, a preset color range and a preset density range of the object to be sterilized by pulsed intense light are obtained; Obtaining a measured color parameter and a measured density parameter of the complete object, and comparing them with the preset color range and the preset density range respectively; The complete object whose measured color parameter and measured density parameter are both within the preset color range and the preset density range is obtained to obtain a sterilized object.

4. The method for increasing lycopene content under pulsed light sterilization according to claim 1, characterized in that: The obtaining of the appearance of the sterilized object and the maturity of the sterilized object includes: The appearance of the sterilized object includes color depth and reflectivity; Based on the color acquisition module, the color of the sterilized object is acquired to obtain the color of the sterilized object; Comparing the color of the sterilized object with a preset color depth level to obtain the color depth level of the sterilized object; Based on the reflectivity measurement module, the reflectivity of the sterilized object is obtained, and the smoothness of the sterilized object is obtained; Comparing the smoothness of the sterilized object with a preset smoothness level to obtain the smoothness level of the sterilized object; The maturity of the sterilized object is obtained based on the smoothness level of the sterilized object and the color depth level of the sterilized object.

5. The method for increasing lycopene content under pulsed light sterilization according to claim 1, characterized in that: The step of setting a sterilization cluster for the sterilized object based on the maturity includes: Acquire a plurality of sterilized objects, and respectively acquire the maturity of each sterilized object; The sterilized objects with the same maturity are placed in the same cluster to obtain a sterilization cluster.

6. The method for increasing lycopene content under pulsed light sterilization according to claim 1, characterized in that: The method of obtaining pulsed light sterilization parameters based on the sterilization cluster and performing sterilization to obtain a sterilized object includes: Obtaining the color distribution status of all the sterilized objects and obtaining the color distribution of the sterilized objects; setting an information label for the sterilized object based on the color distribution; Based on the information tag, pulsed intense light sterilization parameters are obtained, and sterilization treatment is performed to obtain a sterilized object.

7. The method for increasing lycopene content under pulsed light sterilization according to claim 6, characterized in that: The method of obtaining pulsed light sterilization parameters based on the information tag and performing sterilization to obtain a sterilized object includes: Based on the information tag, obtaining the position of the sterilized object, the color distribution and the variety information of the sterilized object; Based on the variety information and the maturity of the sterilized object, a pulsed light sterilization parameter range is obtained; Based on the position of the sterilized object, obtaining a group of pulsed strong light emitting devices for the sterilized object; Obtaining the color distribution position of the first pulsed strong light emitting device and the sterilized object when the sterilized object arrives at the pulsed strong light emitting device group, and obtaining the color-first pulsed strong light emitting device correspondence; Based on the color-first pulsed intense light emitting device correspondence and the rotation speed of the sterilized object, adjusting the rotation speed of the sterilized object in the pulsed intense light emitting device group area; Based on the rotation speed and the pulsed strong light sterilization parameter range, the pulsed strong light sterilization parameters of all the pulsed strong light emitting devices in the pulsed strong light emitting device group are adjusted, and the outer surface of the sterilized object is fully sterilized to obtain a sterilized object.

8. The method for increasing lycopene content under pulsed light sterilization according to claim 1, characterized in that: The step of refrigerating the sterilized object and obtaining the lycopene content of the sterilized object during the refrigeration period comprises: Performing a microbial content test on the sterilized object to obtain a microbial residue; refrigerating the sterilized object whose microbial residue is not higher than a preset microbial residue; The lycopene content of the sterilized object after refrigeration treatment is obtained, and the lycopene content after refrigeration is obtained.

9. The method for increasing lycopene content under intense pulsed light according to any one of claims 1 to 8, characterized in that: The adjusting of the pulsed light sterilization parameters based on the lycopene content after refrigeration and the appearance of the sterilized object includes: Randomly obtaining the lycopene content after refrigeration, and obtaining the average value of the lycopene reduction; Obtaining the sterilized object whose average lycopene reduction value is higher than a preset average lycopene reduction value, and obtaining the corresponding pulsed intense light sterilization parameters; Acquire new pulsed intense light sterilization parameters within the pulsed intense light sterilization parameter range to obtain adjusted pulsed intense light sterilization parameters; Replacing the pulsed intense light sterilization parameters with the adjusted pulsed intense light sterilization parameters, and performing sterilization on the sterilized object; Obtaining a sterilized object sterilized based on the adjusted pulsed intense light sterilization parameters, performing a refrigerated storage process, and obtaining an adjusted average value of lycopene reduction; The adjusted lycopene reduction mean value is compared with the preset lycopene reduction mean value, and the pulsed intense light sterilization parameters are replaced with the adjusted pulsed intense light sterilization parameters until the adjusted lycopene reduction mean value is no higher than the preset lycopene reduction mean value.

10. The method for increasing lycopene content under pulsed light sterilization according to claim 9, characterized in that: Also includes: When the adjusted average value of the lycopene reduction is always not lower than the preset average value of the lycopene reduction, obtaining the information label of the sterilized object; Based on the information tag of the sterilized object, obtaining the pulsed intense light sterilization parameter range corresponding to the sterilized object; Adjusting the pulsed intense light sterilization parameter range to obtain an adjusted pulsed intense light sterilization parameter range; Based on the adjusted pulsed intense light sterilization parameter range, sterilizing the sterilized object, and obtaining the adjusted average value of lycopene reduction; Obtaining, within the adjusted pulsed intense light sterilization parameter range, a pulsed intense light sterilization parameter range corresponding to when the adjusted lycopene reduction mean value is not higher than the preset lycopene reduction mean value, and obtaining a new pulsed intense light sterilization parameter range; A correspondence between the variety information in the information tag and the new pulsed intense light parameter range is established to obtain the pulsed intense light sterilization parameter range corresponding to the variety information, thereby obtaining the pulsed intense light sterilization parameter range corresponding to the variety.

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