A method for preparing germinated flaxseed with improved nutritional value and detoxification rate

Abstract

This invention relates to the field of germinated flaxseed preparation technology, and proposes a method for preparing germinated flaxseed with improved nutritional value and detoxification rate, comprising the following steps: S1: Material selection, weighing 10 kg of plump flaxseeds with no surface damage, rinsing three times with distilled water, soaking in distilled water for 30 min, pouring into a stainless steel mesh frame with a pile thickness 30-50 mm lower than the height of the mesh; S2: Glue extraction, conveying the stainless steel mesh frame from S1 to a glue extraction device via a conveyor belt, where the glue extraction device removes the flax glue from the surface of the flaxseeds within the stainless steel mesh frame; S3: Feeding, conveying the stainless steel mesh frame after the last suction in S2 to a shelf via a conveyor belt, which is then transferred to a cultivation room; S4: Cultivation, placing the stainless steel mesh frame containing degummed flaxseeds from S3 in a dark cultivation room at a temperature of 20℃-30℃ and a humidity of 75%-90%, allowing it to germinate for 4 days.

Description

Technical Field

[0001] This invention relates to the field of germinated flaxseed technology, specifically to a method for preparing germinated flaxseed that improves nutritional value and detoxification rate. Background Technology

[0002] Flaxseed, also known as sesame seed, is the seed of the flax plant (Linus linteus). Rich in oils and proteins, it is an excellent source of arginine, glutamine, and histidine, which help boost immunity. The abundant fatty acids in flaxseed make it one of the oldest edible oil crops. Studies show that grains undergo numerous physiological and metabolic changes after absorbing water and germinating, primarily manifested in enzyme activation and generation, and the recovery of cell physiological activity. This is accompanied by complex biochemical metabolism, leading to significant changes in the nutritional composition and physicochemical properties of the grain. Flaxseed germination is a result of both internal and environmental factors. Internal factors refer to seed quality (germination ability and vigor), while environmental factors include temperature, moisture, and oxygen during soaking and germination. Flaxseed quality generally refers to the intrinsic germination ability of the seed, with key indicators being germination rate and germination potential. Germination rate refers to the percentage of normally germinated seeds during the early germination stage and germination treatment period out of the total number of tested seeds. Germination rate is an important indicator for distinguishing the ability of seeds to germinate and grow into seedlings in the field.

[0003] A search revealed that the literature "The Influence of Different Germination Lengths on the Nutritional Quality of Flaxseed" proposed by Dang Ling et al. describes a method for cultivating flaxseeds. This method involves taking 100 intact flaxseeds, washing them three times with sterile water, soaking them in water for 30 minutes, and then spreading them evenly on a sterilized canvas. These were then placed in a constant temperature incubator at the optimal temperature, sprayed with water every 2 hours, and the germination rate of the flaxseeds at different temperatures was measured after 24 hours. This method can cultivate germinating flaxseeds as needed, but its drawbacks include single-layer seed cultivation, resulting in a small quantity. For large-scale cultivation, the spreading process is time-consuming. Furthermore, the method does not report on its effect on increasing the content of active ingredients in flaxseeds or reducing harmful substances such as cyanogenic glycosides. It also does not recover flax gum and does not explain the effects on increasing the content of active ingredients in flaxseeds or reducing harmful substances such as cyanogenic glycosides.

[0004] The literature submitted by Liu Xiaochen et al., titled "The Effect of Light Germination on the Content of Lipid Associates in Flaxseed Oil," describes a method for culturing flaxseeds. Approximately 30g of flaxseeds were soaked in water at 25℃ for 4 hours, rinsed three times with running water to remove some of the gum, and then placed in a germination tray filled with water. A layer of moist gauze was laid on the tray, and a thin layer of flaxseeds was spread on the gauze, ensuring the water did not submerge the seeds. The tray was then placed in a constant temperature room at (25±3)℃, with the water changed daily to keep the seeds moist. This method involves monolayer flaxseed cultivation, resulting in a small number of seeds per culture. Furthermore, the pretreatment steps are complex and time-consuming. This paper only investigated the changes in lipid associates and antioxidant activity of flaxseed oil during germination, without reporting on the increase in the content of active ingredients or the reduction of harmful substances such as cyanogenic glycosides. It also did not address the gum content in flaxseed oil.

[0005] In summary, existing techniques for promoting flaxseed germination mainly include soaking and watering to improve the germination rate. However, these conventional germination methods have some technical drawbacks:

[0006] First, the conventional germination methods mentioned above are not suitable for large-scale germination of flax seeds. After soaking in water, the surface of flax seeds is covered with a thick layer of linseed gum. When multiple layers are stacked for germination, the presence of linseed gum makes it difficult for ventilation between the flax seeds, causing the lower layer of flax seeds to become moldy and fail to germinate. In addition, the germinated products are prone to clumping and have high hardness, which makes it impossible to produce germination products in large quantities and at high density.

[0007] Secondly, flaxseed contains cyanogenic glycosides, which have good water solubility. Cyanogenic glycosides can be hydrolyzed to produce highly toxic hydrogen cyanide, which can harm the human body. The conventional germination methods mentioned above do not explain how to reduce harmful substances such as cyanogenic glycosides. Therefore, this invention proposes a method for preparing germinated flaxseed that improves nutritional value and detoxification rate. Summary of the Invention

[0008] This invention proposes a method for preparing germinated flaxseed that improves nutritional value and detoxification rate, solving the problem that existing flaxseed germination methods cannot achieve large-scale, high-density germination production.

[0009] The technical solution of the present invention is as follows: A method for preparing germinated flaxseed with improved nutritional value and detoxification rate, comprising the following steps:

[0010] S1: Select materials. Weigh 10kg of flax seeds that are plump and undamaged. Rinse them three times with distilled water and soak them in distilled water for 30 minutes. Pour them into a stainless steel sieve frame (400×600×100mm, 40 mesh) and pile them up with a thickness 30-50mm lower than the height of the sieve.

[0011] S2: Glue extraction. The stainless steel mesh frame from S1 is conveyed to the glue extraction device via a conveyor belt. The contact point between the stainless steel mesh frame and the glue extraction device is sealed with a silicone gasket. The glue extraction device sucks off the flax glue from the surface of the flax seeds inside the stainless steel mesh frame. The glue extraction device includes a collection hopper, a vibrating motor fixed to the outside of the collection hopper, a flax glue storage tank connected to the outlet of the collection hopper via a conduit, and a suction device connected to the air outlet of the flax glue storage tank via a conduit. The specific implementation process is as follows:

[0012] (1) When the stainless steel screen frame of the material is placed on the silicone pad, the vibrating motor starts to vibrate, vibrates once, the vibration frequency is 20-50Hz, and the duration is 20s.

[0013] (2) Start the suction device, and the suction power of the suction device is 500~1000L / min, the wind speed is 2~10m / s, the negative pressure value is -2000~-3000Pa, and the degumming continues for 20s;

[0014] (3) Repeat the vibration and suction 3 to 5 times, and introduce the sucked-down linolenic acid into the linolenic acid storage tank. Then, concentrate and spray dry the linolenic acid in the linolenic acid storage tank.

[0015] S3: Feeding. The stainless steel screen frame after the last suction in S2 stops is sent into the shelf by a conveyor belt, and then the shelf is transferred into the cultivation room.

[0016] S4: Cultivation. Place the stainless steel sieve containing degummed flax seeds from S3 in a dark cultivation room with a temperature of 20℃-30℃ and a humidity of 75%-90%, and let it germinate for 4 days.

[0017] Preferably, in S1, during the soaking process, each flaxseed needs to absorb water and swell, and the floating flaxseeds are sieved out. After the flaxseeds are soaked and taken out, the surface water needs to be drained and poured into a stainless steel mesh frame to drain.

[0018] Preferably, in S2, the outlet of the linoleum storage tank (103) is equipped with a control valve. After the experiment, the linoleum is released through the outlet of the control valve and dried by a concentration device and a spray drying device.

[0019] Preferably, in S2, the silicone pad has a rectangular ring structure, and the silicone pad slides in conjunction with the material inlet of the collection hopper.

[0020] Preferably, in S4, the specific process for cultivating germinated flax seeds is as follows:

[0021] (1) Move the flax seeds in the stainless steel screen in S3 along with the frame into the dark culture room through the wheeled rack to avoid violent vibration, which would cause the airways formed between the flax seeds to close.

[0022] (2) Adjust the temperature inside the culture room to maintain the temperature inside the culture room at 20℃-30℃;

[0023] (3) The cultivation room is connected to a humidifier with a humidity sensor through a pipe to keep the cultivation room and the surface flax seeds moist, with the humidity maintained at 75%-90%;

[0024] (4) Let the flax seeds germinate for 4 days, and check their growth every 24 hours. If any abnormal growth is found, take timely remedial measures.

[0025] The working principle and beneficial effects of this invention are as follows:

[0026] 1. This invention can absorb the linoleic acid produced when flax seeds swell with water, increasing the air permeability of flax seed stacking culture, realizing high-density stacking culture, which is conducive to better seed respiration, enhanced metabolism, and promotion of germination;

[0027] 2. The seed germination method provided by this invention is simple to implement and effectively solves the technical problem that existing germination promotion technologies cannot meet the needs of mass production, which will bring good economic benefits;

[0028] 3. This invention can simultaneously recover high-quality flaxseed gum for use in the production of subsequent food and beverage products, pastries, and candies;

[0029] 4. After germination, the main active ingredients in the product, such as α-linolenic acid, lignans, fatty acids, amino acids, vitamins, and γ-aminobutyric acid, are significantly increased, greatly improving the nutritional value of flaxseed. At the same time, cyanogenic glycosides are significantly reduced, lowering the harmful substances in flaxseed and thus increasing the detoxification rate of flaxseed. Attached Figure Description

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0031] Figure 1 This is a schematic diagram of the structure of a method for preparing germinated flaxseeds with improved nutritional value and detoxification rate according to the present invention;

[0032] Figure 2 This is a schematic diagram of the degumming device of the present invention;

[0033] Figure 3 This is a schematic diagram showing the germination rate and degumming rate of an embodiment of the present invention;

[0034] Figure 4 This is a graph showing the change in fat content during the cultivation process of this invention;

[0035] Figure 5 This is a graph showing the change in fatty acid content during the cultivation process of this invention;

[0036] Figure 6This is a graph showing the change in lignan content during the cultivation process of this invention;

[0037] Figure 7 This is a graph showing the change in cyanogenic glycoside content during the cultivation process of this invention;

[0038] Figure 8 This is a graph showing the change in γ-aminobutyric acid (GABA) content during the cultivation process of this invention.

[0039] Figure 9 This is a graph showing the change in protein content during the cultivation process of this invention;

[0040] Figure 10 This is a diagram showing the changes in amino acid composition during the cultivation process of this invention;

[0041] Figure 11 This is a graph showing the changes in vitamin C and vitamin E content during the cultivation process of this invention.

[0042] In the diagram: 101, collection hopper; 102, vibrating motor; 103, linoleum storage tank; 104, suction equipment. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] Example 1:

[0045] like Figures 1-3 As shown in the figure, this embodiment proposes a method for preparing germinated flaxseed with improved nutritional value and detoxification rate, including the following steps:

[0046] S1: Select 10kg of plump flax seeds with no damage on the surface. Rinse them three times with distilled water and then soak them in distilled water for 30 minutes. During the soaking process, ensure that each flax seed absorbs water and expands. Remove the floating flax seeds by sieving them out. Pour them into a stainless steel sieve frame (400×600×100mm, 40 mesh) and pile them up with a thickness 40mm less than the height of the sieve. Drain the water on the surface of the flax seeds by pouring them into the stainless steel sieve frame.

[0047] S2: Glue extraction. The stainless steel mesh frame from S1 is conveyed to the glue extraction device via a conveyor belt. The contact point between the stainless steel mesh frame and the glue extraction device is sealed with a silicone gasket. The glue extraction device sucks off the flax glue from the surface of the flax seeds inside the stainless steel mesh frame. The glue extraction device includes a collection hopper 101, a vibrating motor 102 fixed to the outside of the collection hopper 101, a flax glue storage tank 103 connected to the outlet of the collection hopper 101 via a conduit, and a suction device 104 connected to the air outlet of the flax glue storage tank 103 via a conduit. The specific implementation process is as follows:

[0048] (1) When the stainless steel screen frame of the material is placed on the silicone pad, the vibration motor 102 starts to vibrate, vibrates once, the vibration frequency is 50Hz, and the duration is 20s.

[0049] (2) Start the suction device 104, and the suction power of the suction device 104 is 1000L / min, the wind speed is 10m / s, the negative pressure value is -2500Pa, and the degumming continues for 20s;

[0050] (3) Repeat the vibration and suction 5 times, and introduce the sucked-down linolenic acid into the linolenic acid storage tank 103. Then, concentrate and spray dry the linolenic acid in the linolenic acid storage tank 103.

[0051] S3: Feeding. The stainless steel screen frame after the last suction in S2 stops is sent into the shelf by a conveyor belt, and then the shelf is transferred into the cultivation room.

[0052] S4: Cultivation. The stainless steel mesh shelves containing degummed flax seeds from S3 are placed in a dark cultivation room for cultivation. The specific process for cultivating germinating flax seeds is as follows:

[0053] (1) Move the flax seeds in the stainless steel screen in S3 along with the frame into the dark culture room through the wheeled rack to avoid violent vibration, which would cause the airways formed between the flax seeds to close.

[0054] (2) Adjust the temperature inside the culture room to maintain the temperature inside the culture room at 25℃;

[0055] (3) The cultivation room is connected to a humidifier with a humidity sensor through a pipe to keep the cultivation room and the surface flax seeds moist, and the humidity is maintained at 85%;

[0056] (4) Let the flax seeds germinate for 4 days, and check their growth every 24 hours. If any abnormal growth is found, take timely remedial measures.

[0057] By removing the linolenic acid produced when flaxseeds come into contact with water, the permeability of flaxseed stacking culture is increased, enabling high-density stacking culture. This facilitates better seed respiration, enhances metabolism, and promotes germination. The entire seed germination method is simple to implement and effectively solves the technical problem that existing germination-promoting technologies cannot meet the needs of large-scale production, bringing good economic benefits. High-quality flaxseed gum can be recovered through the linolenic acid storage tank 103 for subsequent use in the production of food, beverages, pastries, and confectionery. The main active ingredients in the germinated product, such as α-linolenic acid, lignans, fatty acids, amino acids, vitamins, and γ-aminobutyric acid, are significantly increased, greatly improving the nutritional content of flaxseeds. At the same time, cyanogenic glycosides are significantly reduced, lowering the levels of harmful substances in flaxseeds and thus increasing the detoxification rate of flaxseeds.

[0058] Furthermore, in S2, the outlet of the linoleum storage tank 103 is equipped with a control valve. After the experiment, the linoleum is released through the outlet of the control valve via a conduit and dried by a concentration device and a spray drying device. The silica gel pad has a rectangular ring structure and slides with the inlet of the collection hopper 101.

[0059] Example 2:

[0060] A method for preparing germinated flaxseed with improved nutritional value and detoxification rate includes the following steps:

[0061] S1: Select 10kg of plump flax seeds with no damage on the surface. Rinse them three times with distilled water and then soak them in distilled water for 30 minutes. During the soaking process, ensure that each flax seed absorbs water and expands. Remove the floating flax seeds by sieving them out. Pour them into a stainless steel sieve frame (400×600×100mm, 40 mesh) and pile them up with a thickness 40mm less than the height of the sieve. Drain the water on the surface of the flax seeds by pouring them into the stainless steel sieve frame.

[0062] S2: Glue extraction. The stainless steel mesh frame from S1 is conveyed to the glue extraction device via a conveyor belt. The contact point between the stainless steel mesh frame and the glue extraction device is sealed with a silicone gasket. The glue extraction device sucks off the flax glue from the surface of the flax seeds inside the stainless steel mesh frame. The glue extraction device includes a collection hopper 101, a vibrating motor 102 fixed to the outside of the collection hopper 101, a flax glue storage tank 103 connected to the outlet of the collection hopper 101 via a conduit, and a suction device 104 connected to the air outlet of the flax glue storage tank 103 via a conduit. The specific implementation process is as follows:

[0063] (1) When the stainless steel screen frame of the material is placed on the silicone pad, the vibration motor 102 starts to vibrate, vibrates once, the vibration frequency is 35Hz, and the duration is 20s.

[0064] (2) Start the suction device 104, and the suction power of the suction device 104 is 800L / min, the wind speed is 6m / s, the negative pressure value is -2000Pa, and the degumming continues for 20s;

[0065] (3) Repeat the vibration and suction 4 times, and introduce the sucked-down linolenic acid into the linolenic acid storage tank 103. Then, concentrate and spray dry the linolenic acid in the linolenic acid storage tank 103.

[0066] S3: Feeding. The stainless steel screen frame after the last suction in S2 stops is sent into the shelf by a conveyor belt, and then the shelf is transferred into the cultivation room.

[0067] S4: Cultivation. The stainless steel mesh shelves containing degummed flax seeds from S3 are placed in a dark cultivation room for cultivation. The specific process for cultivating germinating flax seeds is as follows:

[0068] (1) Move the flax seeds in the stainless steel screen in S3 along with the frame into the dark culture room through the wheeled rack to avoid violent vibration, which would cause the airways formed between the flax seeds to close.

[0069] (2) Adjust the temperature inside the culture room to maintain the temperature inside the culture room at 20℃;

[0070] (3) The cultivation room is connected to a humidifier with a humidity sensor through a pipe to keep the cultivation room and the surface flax seeds moist, and the humidity is maintained at 80%.

[0071] (4) Let the flax seeds germinate for 4 days, and check their growth every 24 hours. If any abnormal growth is found, take timely remedial measures.

[0072] Example 3:

[0073] A method for preparing germinated flaxseed with improved nutritional value and detoxification rate includes the following steps:

[0074] S1: Select 10kg of plump flax seeds with no damage on the surface. Rinse them three times with distilled water and then soak them in distilled water for 30 minutes. During the soaking process, ensure that each flax seed absorbs water and expands. Remove the floating flax seeds by sieving them out. Pour them into a stainless steel sieve frame (400×600×100mm, 40 mesh) and pile them up with a thickness 40mm less than the height of the sieve. Drain the water on the surface of the flax seeds by pouring them into the stainless steel sieve frame.

[0075] S2: Glue extraction. The stainless steel mesh frame from S1 is conveyed to the glue extraction device via a conveyor belt. The contact point between the stainless steel mesh frame and the glue extraction device is sealed with a silicone gasket. The glue extraction device sucks off the flax glue from the surface of the flax seeds inside the stainless steel mesh frame. The glue extraction device includes a collection hopper 101, a vibrating motor 102 fixed to the outside of the collection hopper 101, a flax glue storage tank 103 connected to the outlet of the collection hopper 101 via a conduit, and a suction device 104 connected to the air outlet of the flax glue storage tank 103 via a conduit. The specific implementation process is as follows:

[0076] (7) When the stainless steel screen frame of the material is placed on the silicone pad, the vibration motor 102 starts to vibrate, vibrates once, the vibration frequency is 20Hz, and the duration is 20s.

[0077] (8) Start the suction device 104, and the suction power of the suction device 104 is 600L / min, the wind speed is 2m / s, the negative pressure value is -2000Pa, and the degumming continues for 20s.

[0078] (9) Repeat the vibration and suction three times, and introduce the sucked-down linolenic acid into the linolenic acid storage tank 103. Then, concentrate and spray dry the linolenic acid in the linolenic acid storage tank 103.

[0079] S3: Feeding. The stainless steel screen frame after the last suction in S2 stops is sent into the shelf by a conveyor belt, and then the shelf is transferred into the cultivation room.

[0080] S4: Cultivation. The stainless steel mesh shelves containing degummed flax seeds from S3 are placed in a dark cultivation room for cultivation. The specific process for cultivating germinating flax seeds is as follows:

[0081] (1) Move the flax seeds in the stainless steel screen in S3 along with the frame into the dark culture room through the wheeled rack to avoid violent vibration, which would cause the airways formed between the flax seeds to close.

[0082] (2) Adjust the temperature inside the culture room to maintain the temperature inside the culture room at 30℃;

[0083] (3) The cultivation room is connected to a humidifier with a humidity sensor through a pipe to keep the cultivation room and the surface flax seeds moist, and the humidity is maintained at 75%;

[0084] (4) Let the flax seeds germinate for 4 days, and check their growth every 24 hours. If any abnormal growth is found, take timely remedial measures.

[0085] Example 4:

[0086] A method for preparing germinated flaxseed with improved nutritional value and detoxification rate includes the following steps:

[0087] S1: Select 10kg of plump flax seeds with no damage on the surface. Rinse them three times with distilled water and then soak them in distilled water for 30 minutes. During the soaking process, ensure that each flax seed absorbs water and expands. Remove the floating flax seeds by sieving them out. Pour them into a stainless steel sieve frame (400×600×100mm, 40 mesh) and pile them up with a thickness 40mm less than the height of the sieve. Drain the water on the surface of the flax seeds by pouring them into the stainless steel sieve frame.

[0088] S2: Glue extraction. The stainless steel mesh frame from S1 is conveyed to the glue extraction device via a conveyor belt. The contact point between the stainless steel mesh frame and the glue extraction device is sealed with a silicone gasket. The glue extraction device sucks off the flax glue from the surface of the flax seeds inside the stainless steel mesh frame. The glue extraction device includes a collection hopper 101, a vibrating motor 102 fixed to the outside of the collection hopper 101, a flax glue storage tank 103 connected to the outlet of the collection hopper 101 via a conduit, and a suction device 104 connected to the air outlet of the flax glue storage tank 103 via a conduit. The specific implementation process is as follows:

[0089] (1) When the stainless steel screen frame of the material is placed on the silicone pad, the vibration motor 102 starts to vibrate, vibrates once, the vibration frequency is 35Hz, and the duration is 20s.

[0090] (2) Start the suction device 104, and the suction power of the suction device 104 is 1000L / min, the wind speed is 6m / s, the negative pressure value is -2500Pa, and the degumming continues for 20s.

[0091] (3) Repeat the vibration and suction three times, and introduce the sucked-down linolenic acid into the linolenic acid storage tank 103. Then, concentrate and spray dry the linolenic acid in the linolenic acid storage tank 103.

[0092] S3: Feeding. The stainless steel screen frame after the last suction in S2 stops is sent into the shelf by a conveyor belt, and then the shelf is transferred into the cultivation room.

[0093] S4: Cultivation. The stainless steel mesh shelves containing degummed flax seeds from S3 are placed in a dark cultivation room for cultivation. The specific process for cultivating germinating flax seeds is as follows:

[0094] (1) Move the flax seeds in the stainless steel screen in S3 along with the frame into the dark culture room through the wheeled rack to avoid violent vibration, which would cause the airways formed between the flax seeds to close.

[0095] (2) Adjust the temperature inside the culture room to maintain the temperature inside the culture room at 25℃;

[0096] (3) The cultivation room is connected to a humidifier with a humidity sensor through a pipe to keep the cultivation room and the surface flax seeds moist, and the humidity is maintained at 85%;

[0097] (4) Let the flax seeds germinate for 4 days, and check their growth every 24 hours. If any abnormal growth is found, take timely remedial measures.

[0098] Example 5:

[0099] A method for preparing germinated flaxseed with improved nutritional value and detoxification rate includes the following steps:

[0100] S1: Select 10kg of plump flax seeds with no damage on the surface. Rinse them three times with distilled water and then soak them in distilled water for 30 minutes. During the soaking process, ensure that each flax seed absorbs water and expands. Remove the floating flax seeds by sieving them out. Pour them into a stainless steel sieve frame (400×600×100mm, 40 mesh) and pile them up with a thickness 40mm less than the height of the sieve. Drain the water on the surface of the flax seeds by pouring them into the stainless steel sieve frame.

[0101] S2: Glue extraction. The stainless steel mesh frame from S1 is conveyed to the glue extraction device via a conveyor belt. The contact point between the stainless steel mesh frame and the glue extraction device is sealed with a silicone gasket. The glue extraction device sucks off the flax glue from the surface of the flax seeds inside the stainless steel mesh frame. The glue extraction device includes a collection hopper 101, a vibrating motor 102 fixed to the outside of the collection hopper 101, a flax glue storage tank 103 connected to the outlet of the collection hopper 101 via a conduit, and a suction device 104 connected to the air outlet of the flax glue storage tank 103 via a conduit. The specific implementation process is as follows:

[0102] (1) When the stainless steel screen frame of the material is placed on the silicone pad, the vibration motor 102 starts to vibrate, vibrates once, the vibration frequency is 50Hz, and the duration is 20s.

[0103] (2) Start the suction device 104, and the suction power of the suction device 104 is 800L / min, the wind speed is 4m / s, the negative pressure value is -2500Pa, and the degumming continues for 20s;

[0104] (3) Repeat the vibration and suction 4 times, and introduce the sucked-down linolenic acid into the linolenic acid storage tank 103. Then, concentrate and spray dry the linolenic acid in the linolenic acid storage tank 103.

[0105] S3: Feeding. The stainless steel screen frame after the last suction in S2 stops is sent into the shelf by a conveyor belt, and then the shelf is transferred into the cultivation room.

[0106] S4: Cultivation. The stainless steel mesh shelves containing degummed flax seeds from S3 are placed in a dark cultivation room for cultivation. The specific process for cultivating germinating flax seeds is as follows:

[0107] (1) Move the flax seeds in the stainless steel screen in S3 along with the frame into the dark culture room through the wheeled rack to avoid violent vibration, which would cause the airways formed between the flax seeds to close.

[0108] (2) Adjust the temperature inside the culture room to maintain the temperature inside the culture room at 20℃;

[0109] (3) The cultivation room is connected to a humidifier with a humidity sensor through a pipe to keep the cultivation room and the surface flax seeds moist, and the humidity is maintained at 75%;

[0110] (4) Let the flax seeds germinate for 4 days, and check their growth every 24 hours. If any abnormal growth is found, take timely remedial measures.

[0111] Example 6:

[0112] A method for preparing germinated flaxseed with improved nutritional value and detoxification rate includes the following steps:

[0113] S1: Select 10kg of plump flax seeds with no damage on the surface. Rinse them three times with distilled water and then soak them in distilled water for 30 minutes. During the soaking process, ensure that each flax seed absorbs water and expands. Remove the floating flax seeds by sieving them out. Pour them into a stainless steel sieve frame (400×600×100mm, 40 mesh) and pile them up with a thickness 40mm less than the height of the sieve. Drain the water on the surface of the flax seeds by pouring them into the stainless steel sieve frame.

[0114] S2: Glue extraction. The stainless steel mesh frame from S1 is conveyed to the glue extraction device via a conveyor belt. The contact point between the stainless steel mesh frame and the glue extraction device is sealed with a silicone gasket. The glue extraction device sucks off the flax glue from the surface of the flax seeds inside the stainless steel mesh frame. The glue extraction device includes a collection hopper 101, a vibrating motor 102 fixed to the outside of the collection hopper 101, a flax glue storage tank 103 connected to the outlet of the collection hopper 101 via a conduit, and a suction device 104 connected to the air outlet of the flax glue storage tank 103 via a conduit. The specific implementation process is as follows:

[0115] (16) When the stainless steel screen frame of the material is placed on the silicone pad, the vibration motor 102 starts to vibrate, vibrates once, the vibration frequency is 20Hz, and the duration is 20s.

[0116] (17) Start the suction device 104, and the suction power of the suction device 104 is 500L / min, the wind speed is 4m / s, the negative pressure value is -3000Pa, and the degumming continues for 20s;

[0117] (18) Repeat the vibration and suction 5 times, and introduce the sucked-down linolenic acid into the linolenic acid storage tank 103. Then, concentrate and spray dry the linolenic acid in the linolenic acid storage tank 103.

[0118] S3: Feeding. The stainless steel screen frame after the last suction in S2 stops is sent into the shelf by a conveyor belt, and then the shelf is transferred into the cultivation room.

[0119] S4: Cultivation. The stainless steel mesh shelves containing degummed flax seeds from S3 are placed in a dark cultivation room for cultivation. The specific process for cultivating germinating flax seeds is as follows:

[0120] (1) Move the flax seeds in the stainless steel screen in S3 along with the frame into the dark culture room through the wheeled rack to avoid violent vibration, which would cause the airways formed between the flax seeds to close.

[0121] (2) Adjust the temperature inside the culture room to maintain the temperature inside the culture room at 30℃;

[0122] (3) The cultivation room is connected to a humidifier with a humidity sensor through a pipe to keep the cultivation room and the surface flax seeds moist at 75%;

[0123] (4) Let the flax seeds germinate for 4 days, and check their growth every 24 hours. If any abnormal growth is found, take timely remedial measures.

[0124] Example 7:

[0125] The present invention also provides a sprouted flaxseed dietary powder, which, by weight percentage, comprises 18% flaxseed powder, 54% sprouted flaxseed powder, 8% buckwheat quinoa powder, 4% black bean powder, 2.4% oats, 1.4% psyllium husk powder, 2.4% flaxseed oil microcapsule powder, 0.2% flaxseed peptide, 8% erythritol, 1.4% maltodextrin, and 0.2% citric acid.

[0126] The comparative examples are set up to be compared with Examples 1, 2, 3, 4, 5, and 6. The specific implementation steps of the comparative examples are as follows:

[0127] (1) Selecting materials: Weigh 10kg of flax seeds that are plump and undamaged. Rinse them three times with distilled water and then soak them in distilled water for 30 minutes. During the soaking process, ensure that each flax seed absorbs water and expands. Remove the floating flax seeds by sieving them out. Pour them into a stainless steel sieve frame (400×600×100mm, 40 mesh) and pile them up with a thickness 40mm less than the height of the sieve. Drain the water on the surface of the flax seeds by pouring them into the stainless steel sieve frame.

[0128] (2) The stainless steel mesh frame is fed into the shelf by a conveyor belt. When the shelf is full, it is pushed into the cultivation room (dark, temperature 25℃, humidity 85%) by the rollers below for germination cultivation.

[0129] The flaxseed germination rate and flaxseed gum residue rate of Examples 1, 2, 3, 4, 5, 6, and the comparative example were calculated according to the following formulas. The specific calculation results are as follows: Figure 3 As shown in the table;

[0130]

[0131] The active ingredients of flaxseed before and after germination were compared through experiments. The specific experimental steps are as follows:

[0132] (1) Select brown flax seeds and process them as follows: clean the flax seeds, weigh 12 portions of 80g flax seeds (accurate to 0.001g) and pour them into 12 beakers respectively;

[0133] (2) Wash with distilled water 3 times, soak in water for 30 minutes, then use a gel extraction device to extract the gel, repeat 3-5 times, put it in a dark and sealed incubator at 25℃ and 85% humidity, and let it stand for 4 days to germinate.

[0134] (3) Samples are collected every 24 hours. The collected samples are freeze-dried, pulverized with 40 mesh, and stored at -20℃.

[0135] (4) The active ingredients of flaxseed at different stages of germination were determined, including fat content and fatty acid composition, lignan content, cyanogenic glycoside content, γ-aminobutyric acid content, protein content and amino acid composition, and vitamin content.

[0136] The fat content was determined according to the method specified in GB 5009.6—2016, and the results are as follows: Figure 5 As shown, the fat content in flaxseed first increases and then decreases with the increase of germination time. Because the rapid growth of the embryo and root during germination requires a lot of energy, fat, as a high-energy reserve substance, is preferentially utilized, which accelerates the consumption of fat.

[0137] The fatty acid content was determined according to the method specified in GB 5009.168—2016, and the results are as follows: Figure 6 As shown, palmitic acid, stearic acid, oleic acid, linoleic acid, and α-linolenic acid change significantly during flaxseed germination, with α-linolenic acid having the highest proportion of fatty acids.

[0138] The experimental procedure for determining the lignan content is as follows:

[0139] First, weigh 0.5g of flaxseed and mix it with 10mL of 95% ethanol, add 10mL of 1M NaOH, sonicate at 60℃ for 1h, and centrifuge at 4000rpm for 5min.

[0140] Then, wash with 10 mL of 95% ethanol, centrifuge at 4000 rpm for 5 min, combine the supernatants, and adjust the pH to 3 with 2 M sulfuric acid;

[0141] The resulting mixture was then defatted with hexane (1:5, W / V), diluted with distilled water to 10 mL, filtered through a 0.45 μm organic phase microporous membrane, and then tested.

[0142] Then, high-performance liquid chromatography (HPLC) was used for detection. The specific chromatographic conditions were as follows: reversed-phase C18 column (5 μm, 250 × 4.6 mm); column temperature: 25℃; injection volume: 10 μL; mobile phase: A-0.01M phosphate buffer pH=2.8, B-acetonitrile, AB: 0-20 min (95:5, v / v), 21-22 min (80:20, v / v), 23-25 ​​min (30:70, v / v), 26-30 min (95:5, v / v); flow rate: 1 mL / min; detection wavelength: 280 nm.

[0143] Experimental results are as follows Figure 7 As shown, germination has a certain effect on lignans, first increasing and then decreasing, with the lignan content reaching a peak of 2.53 μg / mL 48 hours after germination.

[0144] The experimental procedure for determining the content of cyanogenic glycosides is as follows:

[0145] First, accurately weigh 200 mg of brown flax seeds and golden flax seeds with different germination times, add 2 mL of methanol, extract by sonication for 30 min, centrifuge at 5000 rpm / min for 10 min, repeat 3 times, and combine the supernatants.

[0146] Then, take 1 mL of the extract, add 1 mL of distilled water, mix well, and filter through a 0.45 μm organic phase microporous membrane before testing;

[0147] The sample was then detected by high performance liquid chromatography (HPLC). The specific chromatographic conditions were as follows: mobile phase flow rate 0.3 mL / min, column oven temperature 30℃, mobile phase A was 0.1% formic acid aqueous solution, mobile phase B was acetonitrile solution containing 0.1% formic acid, and the gradient elution program was as follows: 0–4 min, 15% B; 5–12 min, 15–50% B; 12–12.1 min, 50–15% B; 12.1–15 min, 15% B.

[0148] Experimental results are as follows Figure 8 As shown, germination can alter the content of cyanogenic glycosides in flaxseed, and the content of cyanogenic glycosides decreases significantly with increasing germination time.

[0149] The content of γ-aminobutyric acid was determined according to the method specified in T / CFIAS 3007-2022, and the results are as follows: Figure 9 As shown, the content of γ-aminobutyric acid is positively correlated with germination time.

[0150] The protein content was determined according to the method specified in GB 5009.5-2010, and the results are as follows: Figure 10As shown, the protein content in flaxseed initially increases and then decreases with increasing germination time. It reaches its highest value of 24.35% at 48 hours of germination, which is approximately 8.25% higher than the protein content of ungerminated flaxseed.

[0151] The amino acid composition was determined according to the method specified in GB 5009.124-2016, and the results are as follows. Figure 11 As shown in the table, it can be seen that the total amino acid content of flaxseed increases with the increase of germination time throughout the germination process, while the proportion of essential amino acids also increases.

[0152] The vitamin C content was determined according to the method specified in GB 5009.86-2016, and the vitamin E content was determined according to the method specified in GB 5009.82-2016. The results are as follows: Figure 11 As shown, vitamin C and vitamin E were almost undetectable in flaxseed before germination. After germination, the vitamin C content increased significantly, reaching as high as 86.28 mg / 100g. The vitamin E content changed relatively slowly compared to vitamin C, but it also showed a clear upward trend.

[0153] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for preparing germinated flaxseed with improved nutritional value and detoxification rate, characterized in that, Includes the following steps: S1: Select materials. Weigh 10kg of flax seeds that are plump and undamaged. Rinse them three times with distilled water and soak them in distilled water for 30 minutes. Pour them into a stainless steel sieve frame (400 × 600 × 100 mm, 40 mesh) and pile them up with a thickness 30~50 mm lower than the height of the sieve. S2: Glue extraction. The stainless steel screen frame from S1 is conveyed to the glue extraction device via a conveyor belt. The contact point between the stainless steel screen frame and the glue extraction device is sealed with a silicone gasket. The glue extraction device sucks off the flax glue from the surface of the flax seeds inside the stainless steel screen frame. The glue extraction device includes a collection hopper (101), a vibrating motor (102) fixed to the outside of the collection hopper (101), a flax glue storage tank (103) connected to the outlet of the collection hopper (101) via a conduit, and a suction device (104) connected to the air outlet of the flax glue storage tank (103) via a conduit. The specific implementation process is as follows: (1) When the stainless steel screen frame of the material is placed on the silicone pad, the vibrating motor (102) starts to vibrate, vibrates once, the vibration frequency is 20~50 Hz, and the duration is 20 s; (2) Start the suction device (104), and the suction power of the suction device (104) is 500~1000 L / min, the wind speed is 2~10 m / s, the negative pressure value is -2000~-3000Pa, and the degumming continues for 20 s; (3) Repeat the vibration and suction 3 to 5 times, and introduce the sucked-down linolenic acid into the linolenic acid storage tank (103). Then, concentrate and spray dry the linolenic acid in the linolenic acid storage tank (103). S3: Feeding. The stainless steel screen frame after the last suction in S2 stops is sent into the shelf by a conveyor belt, and then the shelf is transferred into the cultivation room. S4: Cultivation. Place the stainless steel sieve containing degummed flax seeds from S3 in a dark cultivation room with a temperature of 20℃-30℃ and a humidity of 75%-90%, and let it germinate for 4 days.

2. The method for preparing germinated flaxseed with improved nutritional value and detoxification rate according to claim 1, characterized in that, In S1, during the soaking process, each flaxseed needs to absorb water and swell. Floating flaxseeds are sieved out. After soaking, the surface water needs to be drained and the flaxseeds are poured into a stainless steel mesh frame to drain.

3. The method for preparing germinated flaxseed with improved nutritional value and detoxification rate according to claim 1, characterized in that, In S2, the outlet of the linoleum storage tank (103) is equipped with a control valve. After the experiment, the linoleum is released through the outlet of the control valve and dried by a concentration device and a spray drying device.

4. The method for preparing germinated flaxseed with improved nutritional value and detoxification rate according to claim 1, characterized in that, In S2, the silicone pad has a rectangular ring structure and slides with the inlet of the collection hopper (101).

5. The method for preparing germinated flaxseed with improved nutritional value and detoxification rate according to claim 1, characterized in that, In S4, the specific process for cultivating germinated flax seeds is as follows: (1) Move the flax seeds in the stainless steel screen in S3 along with the frame into the dark culture room through the wheeled rack to avoid violent vibration, which would cause the airways formed between the flax seeds to close. (2) Adjust the temperature inside the culture room to maintain the temperature at 20℃-30℃; (3) The cultivation room is connected to a humidifier with a humidity sensor through pipes to keep the cultivation room and the surface flax seeds moist, with the humidity maintained at 75%-90%; (4) Let the flax seeds germinate for 4 days. Check the growth of the flax seeds every 24 hours. If any abnormal growth is found, take timely remedial measures.

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