A raw material processing device for extracting organic selenium from broccoli and a method of using the same

Abstract

The present invention relates to the technical field of plant organic selenium extraction, and in particular to a raw material processing equipment for extracting organic selenium from broccoli, comprising a crusher; a first filter screen, a second filter screen, a drain pipe, a delivery pipe, a feed pipe and an exhaust pipe; the crusher is connected to the first filter screen; the crusher is connected to the second filter screen; the crusher is connected to the drain pipe; a plurality of delivery pipes are provided on the crushing cylinder of the crusher; the crusher is connected to a plurality of feed pipes; the crusher is connected to the exhaust pipe. The present invention can effectively reduce the heat generated during the crushing process through ice cubes, avoid the heat generated during the crushing process, and cause the loss of selenium. It should be noted that some selenium elements in broccoli are unstable at high temperatures and may decompose or degrade, which is not conducive to the subsequent extraction of organic selenium.

Description

Technical Field

[0001] The present invention relates to the technical field of plant organic selenium extraction, and in particular to a raw material processing device for extracting organic selenium from broccoli and a use method thereof. Background Art

[0002] Selenium is an essential trace element for the human body. Selenium deficiency can lead to chronic diseases such as cancer, three highs, cardiovascular and cerebrovascular diseases, diabetes, liver disease, etc. Broccoli contains a certain amount of selenium. Therefore, broccoli is usually used as a raw material in the preparation and extraction of organic selenium. When broccoli is used as a raw material for the preparation and extraction of organic selenium, the broccoli needs to be pretreated, that is, the broccoli needs to be cleaned and crushed first. The purpose of crushing is to destroy the cell wall of the broccoli so as to facilitate the subsequent more effective extraction of organic selenium. In order to improve efficiency, broccoli is often frozen. The freezing process can make the cells The water in the broccoli forms ice crystals, causing the cells to rupture, which helps the broccoli release the selenium in the cells. When the broccoli is crushed, it usually takes a long time to crush the broccoli so that the cell walls of the broccoli are fully broken. However, when the broccoli is crushed for a long time, the broccoli and the crushing tools will continue to rub against each other during the crushing process, which will gradually generate heat. Some selenium elements in the broccoli are unstable at high temperatures and may decompose or degrade, which is not conducive to the subsequent extraction of organic selenium. In addition, the increase in temperature during the crushing process may also cause the structure of the broccoli cell wall to change, affecting its destruction effect. Summary of the invention

[0003] In order to overcome the disadvantage that when broccoli is crushed for a long time, the broccoli and the crushing cutter will constantly rub against each other during the crushing process, which will gradually generate heat, and some selenium elements in the broccoli are unstable at high temperatures and may decompose or degrade, thus being unfavorable for the subsequent extraction of organic selenium, the present invention provides a raw material processing equipment for extracting organic selenium from broccoli.

[0004] The technical implementation scheme of the present invention is: a raw material processing equipment for extracting organic selenium from broccoli, including a crusher; also including a first filter screen, a second filter screen, a drain pipe, a conveying pipe, a feeding pipe and an exhaust pipe; the bottom of the crusher is connected to the first filter screen; the bottom of the crusher is connected to the second filter screen; the second filter screen is located below the first filter screen; the bottom of the crusher is connected to a drain pipe; the drain pipe is located below the second filter screen; a plurality of conveying pipes are penetrated on the crushing cylinder of the crusher; the crusher is connected to a plurality of feeding pipes; the crusher is connected to an exhaust pipe;

[0005] It also includes a cleaning component, which includes an air pipe; the crusher is connected to a plurality of air pipes; each air pipe is provided with a plurality of through holes;

[0006] It also includes an extrusion assembly, which includes a connecting plate, an electric push rod and a connecting cylinder; a connecting plate is connected to the middle of the top of the crusher; an electric push rod is fixedly connected to the connecting plate, and the electric push rod is located outside the crusher; the telescopic end of the electric push rod is connected to the rotating shaft of the crusher for controlling the rotation of the cutter; a connecting cylinder is connected through the middle of the top of the crusher, and the connecting cylinder is located below the connecting plate; the telescopic end of the electric push rod penetrates into the connecting cylinder, and the connecting cylinder is connected to the driving member of the crusher for driving the rotating shaft to rotate; the connecting cylinder is connected to the rotating shaft of the crusher for controlling the rotation of the cutter;

[0007] The crusher includes a bracket, a separation cylinder, a crushing cylinder, a cover, a DD motor, a connecting shaft and a crushing knife; the separation cylinder is fixedly connected to the bracket; the crushing cylinder is fixedly connected to the separation cylinder; the crushing cylinder is fixedly connected to the cover; the DD motor is bolted to the cover; the connecting shaft is connected to the output shaft of the DD motor; six equally spaced crushing knives are fixedly connected to the connecting shaft.

[0008] As a further preferred solution, a gap is provided between the second filter screen and the bottom of the crusher.

[0009] As a further preferred solution, the bottom of the crusher is arranged inclined.

[0010] As a further preferred solution, a temperature sensor is provided in the crusher.

[0011] As a further preferred solution, the through hole is directly opposite to a cutter of the crusher for crushing.

[0012] As a further preferred solution, the crusher, the first filter screen and the second filter screen are designed to be detachable.

[0013] As a further preferred solution, a rubber sleeve is provided at the connection between the connecting cylinder and the rotating shaft of the crusher for controlling the rotation of the cutter.

[0014] A method for using a raw material processing device for extracting organic selenium from broccoli comprises the following steps:

[0015] Step 1: Wash the broccoli, remove dirt and impurities on the surface, cut the broccoli, remove the stems and leaves, and only keep the corolla;

[0016] Step 2: Freeze the broccoli to the desired temperature;

[0017] Step 3: Crush the pre-treated broccoli to destroy the cell wall and release the selenium in the cell. During the crushing process, add ice cubes to the delivery tube to reduce the heat generated during the crushing process.

[0018] Step 4: Soften the broccoli with melted water, and soften the broccoli particles after freezing, so that the cell structure of the broccoli is damaged and the cell membrane permeability is increased. This helps the solvent to penetrate into the cells more effectively during the subsequent selenium extraction process, contact with selenium and other nutrients, and increase the release of selenium.

[0019] Step 5: Put the collected and crushed pulp into the extraction equipment, and use modern extraction technologies such as ultrasound and microwave assistance to improve the extraction rate;

[0020] Step 6: Remove unwanted impurities through chromatography, filtration, precipitation, etc. to concentrate the target selenium compound;

[0021] Step 7: Convert the extracted inorganic selenium or selenium compounds into organic selenium forms, such as selenomethionine, selenium yeast, etc., through microbial fermentation or chemical reaction;

[0022] Step 8: Concentrate the extract and make it into an organic selenium product that is easy to store and use through methods such as spray drying and freeze drying.

[0023] The beneficial effects of the present invention are: 1. The present invention can effectively reduce the heat generated during the crushing process through ice cubes, thereby avoiding the loss of selenium caused by the heat generated during the crushing process. It should be noted that some selenium elements in broccoli are unstable at high temperatures and may decompose or degrade, which is not conducive to the subsequent extraction of organic selenium. The broccoli is softened by melted water, and the broccoli particles are softened after freezing, so that the cell structure of the broccoli is damaged and the permeability of the cell membrane is increased. Therefore, in the subsequent selenium extraction, the solvent in the extraction process is helped to penetrate into the cells more effectively, contact with selenium and other nutrients, and improve the release of selenium.

[0024] 2. The present invention sprays cold air into the crushing cylinder through the through hole to reduce the temperature in the crushing cylinder and avoid the temperature rise in the crushing cylinder, which affects the subsequent extraction of organic selenium from the crushed broccoli. At the same time, cold air is injected into the crushing cylinder through the through hole to assist in discharging the irritation generated by the crushing in the crushing cylinder to the external purification equipment through the exhaust pipe.

[0025] 3. The present invention drives the second filter to slide up and down in the separation cylinder. When the second filter slides upward in the separation cylinder, the space between the first filter and the second filter is compressed, and the broccoli particles and ice cubes inside the separation cylinder are more compact, thereby enhancing the crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a raw material processing device for extracting organic selenium from broccoli according to the present invention;

[0027] Figure 2This is a schematic diagram of the internal structure of the raw material processing equipment for extracting organic selenium from broccoli of the present invention;

[0028] Figure 3 This is a schematic diagram of the installation position of the gas pipeline of the raw material processing equipment for extracting organic selenium from broccoli of the present invention;

[0029] Figure 4 It is a cross-sectional view of the gas transmission pipe of the raw material processing equipment for extracting organic selenium from broccoli of the present invention;

[0030] Figure 5 This is a schematic structural diagram of an extrusion assembly of a raw material processing device for extracting organic selenium from broccoli according to the present invention;

[0031] Figure 6 This is a schematic diagram of the combined structure of the electric push rod and the connecting cylinder of the raw material processing equipment for extracting organic selenium from broccoli of the present invention.

[0032] Marked in the figure: 1- bracket, 2- separation cylinder, 3- crushing cylinder, 4- cover, 5- DD motor, 6- connecting shaft, 7- crushing knife, 8- first filter, 9- second filter, 10- drain pipe, 11- conveying pipe, 12- feeding pipe, 13- exhaust pipe, 101- air delivery pipe, 10101- through hole, 201- connecting plate, 202- electric push rod, 203- connecting cylinder. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1

[0035] A raw material processing device for extracting organic selenium from broccoli, such as Figure 1-Figure 2 As shown, it includes a bracket 1, a separation cylinder 2, a crushing cylinder 3, a cover 4, a DD motor 5, a connecting shaft 6 and a crushing knife 7; the bracket 1 is fixedly connected with the separation cylinder 2; the separation cylinder 2 is fixedly connected with the crushing cylinder 3; the crushing cylinder 3 is fixedly connected with the cover 4; the cover 4 is bolted with the DD motor 5; the output shaft of the DD motor 5 is connected with the connecting shaft 6; the connecting shaft 6 is fixedly connected with six crushing knives 7 distributed at equal distances;

[0036] It also includes a first filter screen 8, a second filter screen 9, a drain pipe 10, a delivery pipe 11, a feed pipe 12 and an exhaust pipe 13; the first filter screen 8 is connected to the crushing cylinder 3; the second filter screen 9 is fixedly connected to the connecting shaft 6; the second filter screen 9 is located below the first filter screen 8; the second filter screen 9 is in contact with the separation cylinder 2; the separation cylinder 2 is connected with a drain pipe 10; the drain pipe 10 is located below the second filter screen 9; the crushing cylinder 3 of the crusher is penetrated by three delivery pipes 11 in an annular array; the delivery pipe 11 is fixedly connected to the cover 4; the cover 4 is connected with two symmetrically arranged feed pipes 12; the cover 4 is connected with an exhaust pipe 13.

[0037] A gap is provided between the second filter screen 9 and the bottom of the crusher for storing the secondary crushed broccoli mixture.

[0038] The bottom of the separation cylinder 2 is inclined to guide the secondary crushed broccoli mixture.

[0039] First, the staff uses the external conveying equipment to connect with the conveying pipe 11, and then uses the external feeding equipment to connect with the feeding pipe 12, and then uses the external purification equipment to connect with the exhaust pipe 13, and then closes the valve built in the drain pipe 10, and then starts the feeding equipment to transport the frozen broccoli to the crushing cylinder 3 through the feeding pipe 12, and starts the conveying equipment to transport ice cubes to the crushing cylinder 3 through the conveying pipe 11. After the delivery of broccoli and ice cubes is completed, the conveying pipe 11 and the feeding pipe 12 are sealed with an external sealing cover, and then the DD motor 5 is controlled to drive the connecting shaft 6 to rotate. The connecting shaft 6 drives the crushing blade 7 to rotate, and the crushing blade 7 crushes the broccoli and ice in the crushing cylinder 3. In the crushing process, the ice cubes are used as abrasives to crush the broccoli into finer particles, thereby further enhancing the effect of crushing the cell wall of the broccoli, so that the selenium element can be better released. The heat generated in the crushing process can be effectively reduced by the ice cubes, thereby avoiding the loss of selenium caused by the heat generated in the crushing process. It should be noted that some selenium elements in broccoli are unstable at high temperatures and may decompose or degrade, which is not conducive to the subsequent extraction of organic selenium.

[0040] During the broccoli crushing process, as the crushing time increases, the ice cubes and broccoli in the crushing cylinder 3 will be broken into smaller particles. The ice cubes and broccoli broken into smaller particles will pass through the first filter screen 8 into the separation cylinder 2 and be restricted by the second filter screen 9. Then, the crushing knife 7 between the first filter screen 8 and the second filter screen 9 will further crush the ice cubes. During this process, the tiny ice cubes will melt, that is, the broccoli will be softened by the melted water, and the broccoli particles that have been softened after freezing will damage the broccoli cell structure and increase the permeability of the cell membrane. Therefore, during the subsequent selenium extraction, it will help the solvent to penetrate into the cells more effectively during the extraction process, come into contact with selenium and other nutrients, and increase the release of selenium.

[0041] By subjecting the broccoli to secondary crushing and using ice cubes as abrasives and the melted ice cubes as a water solution for subsequent extraction of the broccoli, the crushed broccoli material can be directly used for extraction, thereby reducing the step of adding water in the subsequent extraction process. The broccoli particles entering the separation cylinder 2 are relatively small. When the crushing knife 7 further performs crushing work between the first filter screen 8 and the second filter screen 9, the main purpose of the crushing knife 7 is to mix the broccoli particles entering the separation cylinder 2 with the water after the ice melts. After the broccoli particles entering the separation cylinder 2 are crushed and mixed by the crushing knife 7, the broccoli particles gradually pass through the second filter screen 9 and enter the lower part of the separation cylinder 2, between the second filter screen 9 and the drain pipe 10. When the broccoli in the crushing cylinder 3 and the separation cylinder 2 are crushed and located at the lower part of the separation cylinder 2, between the second filter screen 9 and the drain pipe 10, the built-in valve of the drain pipe 10 is opened to discharge the broccoli particles and the water after the ice melts into the collection container, and then the collection container is transferred to the subsequent extraction equipment manually or by an external manipulator.

[0042] During the crushing process of broccoli, the plant cell wall is destroyed, and the glucosidase in the cell comes into contact with the glucosinolate, causing a hydrolysis reaction to generate compounds such as isothiocyanates. These compounds have a strong pungent odor, such as mustard or garlic. In order to improve the air quality in the working environment, the irritating gas generated during the crushing process is discharged into an external purification device through the exhaust pipe 13, and the irritating odor generated by the crushing is purified by the external purification device.

[0043] Example 2

[0044] On the basis of the above-mentioned embodiment 1, Figure 3-Figure 4 As shown, a cleaning assembly is also included, which includes an air pipe 101; three annular array air pipes 101 are passed through the crushing cylinder 3; the air pipes 101 are fixedly connected to the cover 4; and each air pipe 101 is provided with a plurality of through holes 10101.

[0045] A temperature sensor is provided inside the crushing cylinder 3 for detecting the temperature inside the crushing cylinder 3 and performing cooling work in cooperation with the air pipe 101 .

[0046] The through hole 10101 is directly opposite to the corresponding crushing knife 7 and is used to further clean the broccoli particles on the crushing knife 7.

[0047] The separation cylinder 2, the crushing cylinder 3, the first filter screen 8 and the second filter screen 9 are designed to be detachable, so as to facilitate the subsequent cleaning of the separation cylinder 2, the crushing cylinder 3, the first filter screen 8 and the second filter screen 9.

[0048] First, the staff uses an external pump to connect with the gas pipe 101. During the process of crushing the broccoli, when the temperature sensor installed in the crushing cylinder 3 detects that its temperature has risen, the external pump is controlled to input cold air into the gas pipe 101. The cold air is sprayed into the crushing cylinder 3 through the through hole 10101 to reduce the temperature in the crushing cylinder 3 and avoid the temperature rise in the crushing cylinder 3, which affects the subsequent extraction of organic selenium from the crushed broccoli. At the same time, cold air is injected into the crushing cylinder 3 through the through hole 10101 to assist in discharging the irritation generated by the crushing in the crushing cylinder 3 to the external purification equipment through the exhaust pipe 13.

[0049] And because the through hole 10101 is facing the corresponding crushing knife 7, it is important to know that after the broccoli and ice cubes are crushed, the space they occupy in the crushing cylinder 3 gradually becomes smaller, that is, the upper crushing knife 7 will gradually lose its function, and broccoli particles will be attached to its surface. Although a large number of broccoli particles will be thrown out under the action of the centrifugal force of the rotation of the crushing knife 7, some broccoli particles will still remain. In this process, the airflow ejected through the through hole 10101 cleans the broccoli particles remaining on the crushing knife 7 to prevent the residual broccoli particles from deteriorating.

[0050] Example 3

[0051] Based on the above embodiment 2, Figure 5-Figure 6 As shown, it also includes an extrusion assembly, which includes a connecting plate 201, an electric push rod 202 and a connecting cylinder 203; the connecting plate 201 is fixedly connected to the middle of the top end of the cover 4; the electric push rod 202 is fixedly connected to the connecting plate 201, and the electric push rod 202 is located outside the separation cylinder 2; the telescopic end of the electric push rod 202 is rotatably connected to the connecting shaft 6; the connecting cylinder 203 is rotatably connected to the middle of the top end of the cover 4, and the connecting cylinder 203 is located below the connecting plate 201; the telescopic end of the electric push rod 202 penetrates into the interior of the connecting cylinder 203, and the connecting cylinder 203 is fixedly connected to the DD motor 5; the connecting cylinder 203 is slidably connected to the connecting shaft 6.

[0052] The upper outer surface of the connecting shaft 6 is covered with a rubber sleeve to enhance the sealing effect between the connecting shaft 6 and the connecting tube 203 and prevent the discharge of irritating gas.

[0053] During the crushing process, the electric push rod 202 is controlled to drive the connecting shaft 6 to slide up and down in the connecting cylinder 203. The connecting shaft 6 drives the crushing knife 7 to move accordingly, so that the crushing knife 7 performs crushing work at different positions, and at the same time drives the second filter screen 9 to slide up and down in the separation cylinder 2. When the second filter screen 9 slides upward in the separation cylinder 2, it compresses the space between the first filter screen 8 and the second filter screen 9, and the broccoli particles and ice cubes inside the separation cylinder 2 are more compact to enhance the crushing effect. At the same time, some broccoli particles and ice cubes will pass through the first filter screen 8 to clear the blocked first filter screen 8, so that the broccoli particles in the crushing cylinder 3 above the first filter screen 8 can smoothly pass through the first filter screen 8 and enter the separation cylinder 2, and move back and forth through the second filter screen 9, compressing the space between the first filter screen 8 and the second filter screen 9, which can also help the broccoli particles that complete the crushing work to pass through the second filter screen 9.

[0054] A method for using a raw material processing device for extracting organic selenium from broccoli comprises the following steps:

[0055] Step 1: Wash the broccoli, remove dirt and impurities on the surface, cut the broccoli, remove the stems and leaves, and only keep the corolla;

[0056] Step 2: Freeze the broccoli to the desired temperature;

[0057] Step 3: crushing the pretreated broccoli to destroy the cell wall and release the selenium in the cell. During the crushing process, ice cubes are added to the delivery pipe 11 to reduce the heat generated during the crushing process.

[0058] Step 4: Soften the broccoli with melted water, and soften the broccoli particles after freezing, so that the cell structure of the broccoli is damaged and the cell membrane permeability is increased. This helps the solvent to penetrate into the cells more effectively during the subsequent selenium extraction process, contact with selenium and other nutrients, and increase the release of selenium.

[0059] Step 5: Put the collected and crushed pulp into the extraction equipment, and use modern extraction technologies such as ultrasound and microwave assistance to improve the extraction rate;

[0060] Step 6: Remove unwanted impurities through chromatography, filtration, precipitation, etc. to concentrate the target selenium compound;

[0061] Step 7: Convert the extracted inorganic selenium or selenium compounds into organic selenium forms, such as selenomethionine, selenium yeast, etc., through microbial fermentation or chemical reaction;

[0062] Step 8: Concentrate the extract and make it into an organic selenium product that is easy to store and use through methods such as spray drying and freeze drying.

[0063] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. A raw material processing equipment for extracting organic selenium from broccoli, comprising a crusher; characterized in that: It also includes a first filter (8), a second filter (9), a drainage pipe (10), a delivery pipe (11), a feed pipe (12) and an exhaust pipe (13); the first filter (8) is connected to the bottom of the crusher; the second filter (9) is connected to the bottom of the crusher; the second filter (9) is located below the first filter (8); the drainage pipe (10) is connected to the bottom of the crusher; the drainage pipe (10) is located below the second filter (9); a plurality of delivery pipes (11) are provided on the crushing cylinder (3) of the crusher; the crusher is connected to a plurality of feed pipes (12); the crusher is connected to an exhaust pipe (13); ice cubes are added through the delivery pipe (11) during the crushing process, and the heat generated during the crushing process is reduced by the ice cubes; It also includes a cleaning component, which includes an air pipe (101); the crusher is connected to a plurality of air pipes (101); each air pipe (101) is provided with a plurality of through holes (10101); The apparatus also includes an extrusion assembly, which includes a connecting plate (201), an electric push rod (202) and a connecting tube (203); the connecting plate (201) is connected to the middle of the top of the crusher; the electric push rod (202) is fixedly connected to the connecting plate (201), and the electric push rod (202) is located outside the crusher; the telescopic end of the electric push rod (202) is connected to a rotating shaft of the crusher for controlling the rotation of a cutter; the connecting tube (203) is connected to the middle of the top of the crusher in a through-type manner, and the connecting tube (203) is located below the connecting plate (201); the telescopic end of the electric push rod (202) penetrates into the connecting tube (203), and the connecting tube (203) is connected to a driving member of the crusher for driving the rotating shaft to rotate; the connecting tube (203) is connected to the rotating shaft of the crusher for controlling the rotation of the cutter; The crusher comprises a bracket (1), a separation barrel (2), a crushing barrel (3), a cover (4), a DD motor (5), a connecting shaft (6) and crushing knives (7); the bracket (1) is fixedly connected to the separation barrel (2); the separation barrel (2) is fixedly connected to the crushing barrel (3); the cover (4) is fixedly connected to the crushing barrel (3); the cover (4) is bolted to the DD motor (5); the output shaft of the DD motor (5) is connected to the connecting shaft (6); and six crushing knives (7) distributed at equal intervals are fixedly connected to the connecting shaft (6); The through hole (10101) is directly opposite to the cutter used for crushing by the crusher.

2. The raw material processing equipment for extracting organic selenium from broccoli according to claim 1, characterized in that: A gap is provided between the second filter screen (9) and the bottom of the crusher.

3. The raw material processing equipment for extracting organic selenium from broccoli according to claim 2, characterized in that: The bottom of the crusher is set at an angle.

4. The raw material processing equipment for extracting organic selenium from broccoli according to claim 1, characterized in that: A temperature sensor is provided inside the crusher.

5. The raw material processing equipment for extracting organic selenium from broccoli according to claim 1, characterized in that: The crusher, the first filter screen (8) and the second filter screen (9) are designed to be detachable.

6. The raw material processing equipment for extracting organic selenium from broccoli according to claim 1, characterized in that: A rubber sleeve is provided at the connection between the connecting cylinder (203) and the rotating shaft of the crusher for controlling the rotation of the cutter.

7. A raw material processing equipment for extracting organic selenium from broccoli according to any one of claims 1 to 6, characterized in that: A method for using a raw material processing device for extracting organic selenium from broccoli comprises the following steps: Step 1: Wash the broccoli, remove dirt and impurities on the surface, cut the broccoli, remove the stems and leaves, and only keep the corolla; Step 2: Freeze the broccoli to the desired temperature; Step 3: crushing the pre-treated broccoli to destroy the cell wall and release the selenium in the cells. During the crushing process, ice cubes are added through the delivery tube (11) to reduce the heat generated during the crushing process. Step 4: Soften the broccoli with melted water, and soften the broccoli particles after freezing, so that the cell structure of the broccoli is damaged and the cell membrane permeability is increased. This helps the solvent to penetrate into the cells more effectively during the subsequent selenium extraction process, contact with selenium and other nutrients, and increase the release of selenium. Step 5: Put the collected and crushed pulp into the extraction equipment, and use modern extraction technology assisted by ultrasound and microwave to improve the extraction rate; Step 6: Remove unwanted impurities through chromatography, filtration, and precipitation to concentrate the target selenium compound; Step 7: Convert the extracted inorganic selenium or selenium compounds into organic selenium forms, such as selenomethionine and selenium yeast, through microbial fermentation or chemical reaction; Step 8: Concentrate the extract and make it into an organic selenium product that is easy to store and use by spray drying and freeze drying.

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