Deep processing method of defatted soybean meal

Abstract

The invention relates to the technical field of deep processing of defatted soybean powder, in particular to a deep processing method of defatted soybean powder. The method comprises the following steps: 1, raw material pretreatment: preparing a soybean raw material, firstly cleaning, then removing stones, and then passing through a magnetic separator; 2, heating and softening the raw materials; step 3, oil pressing process; step 4, puffing and crushing; and step 5, final processing. Soybeans are processed to be 0.25 mm in thickness through the embryo pricking machine, cell walls are damaged, the soybean embryo pricking machine is matched with the 206 type hydraulic oil cylinder oil press to work under the pressure of 400 MPa, grease in the soybeans is forcefully extruded, the grease is separated out more rapidly and more thoroughly, the physical combination effectively improves the oil outlet efficiency, waste of raw materials is reduced, meanwhile, the treatment capacity of different devices in all the steps is reasonably arranged, and the production cost is reduced. The whole processing flow is efficiently and orderly carried out, the production efficiency is greatly improved, and the stability and the consistency of soybean meal product production are improved, so that the economic income is improved.

Description

Technical Field

[0001] The invention relates to the technical field of deep processing of defatted soybean powder, in particular to a deep processing method of defatted soybean powder. Background Art

[0002] As people's demand for healthy food continues to increase, defatted soy flour, as a food ingredient rich in protein and low in fat, is increasingly used in the field of food processing. However, there are some problems in the existing defatted soy flour processing methods, which limit its quality and production efficiency. In traditional processing, on the one hand, the pretreatment of raw materials is not fine enough, and only simple cleaning is performed without effectively removing stones, metal impurities, etc., which affects the purity and quality stability of the product. On the other hand, the ordinary oil pressing equipment in the oil pressing process has low pressure and cannot fully extract the oil, resulting in low oil yield, causing waste of raw materials and increased costs. At the same time, the increased protection of soybean cell walls makes oil extraction difficult, which consumes time and energy, reduces production efficiency, and residual oil affects the purity and product quality of defatted soybean powder, thereby causing economic losses.

[0003] In view of this, there is an urgent need for a defatted soybean powder deep processing method that improves the purity, stability and nutritional value of the product to improve the deficiencies of the existing technology. Summary of the invention

[0004] The object of the present invention is to provide a defatted soybean meal deep processing method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides a defatted soybean powder deep processing method, comprising the following steps: S1. Raw material pretreatment: Prepare the soybean raw material, first wash it, then remove the stone, then pass it through the magnetic separator to remove the metal impurities in the soybean by magnetic adsorption, then enter the peeling machine to remove the outer skin of the soybean, the peeled soybean is sieved through the particle sieve, and then the surface of the soybean is treated by the polishing machine, and finally the high-quality soybean is selected by the color sorter and enters the raw material warehouse; S2. Raw material heating and softening: The raw materials enter the boiler for heating from the raw material bin. The heated soybeans enter the softening pot for further heating to soften the soybeans. The softened soybeans enter the embryo machine for processing to prepare for subsequent oil extraction; S3, oil pressing process: the soybeans after embryo extraction are put into a small frying pan, the fried soybeans are put into the oil press for oil pressing, and the pressed oil is cooled by a cooler to obtain soybean oil; S4, puffing and crushing: the soybean cake after oil extraction enters the crusher to crush the soybean cake into high-temperature hot-pressed soybean cake powder; the high-temperature hot-pressed soybean cake powder enters the puffing machine for thermal treatment; the puffed product passes through the cooler to obtain full-fat puffed soybean powder; S5. Final processing: The full-fat puffed soybean powder enters the crusher to be crushed. The crushed product is sent to the receiving bin and is finally processed into defatted puffed soybean powder.

[0006] As a further improvement of this technical solution, in S1, The soybean raw material processing capacity is 45t / h-50t / h; The soybean cleaning processing capacity is 7t / h-9t / h; The soybean de-stone processing capacity is 7t / h-9t / h; The processing capacity of the magnetic separator is 7t / h-9t / h; The processing capacity of the peeling machine is 14t / h / 16t / h; The processing capacity of the sieving screen is 8t / h-12t / h; The polishing machine has a processing capacity of 8t / h-12t / h; The processing capacity of the color sorter is 7t / h-9t / h.

[0007] As a further improvement of the technical solution, in S2, the boiler heating temperature is increased to 110°C-130°C, and the softening pot is heated to 45°C-55°C.

[0008] As a further improvement of the technical solution, in S2, the germ forming machine processes the soybeans into a thickness of 0.25 mm.

[0009] As a further improvement of the technical solution, in S3, the small frying pan raises the temperature to 95°C-110°C to fry the soybeans; and the cooler lowers the temperature of the oil to 12°C-16°C.

[0010] As a further improvement of the technical solution, in S3, the oil press adopts a 206-type hydraulic cylinder oil press, the cylinder diameter of the oil press is 600 mm, the thickness is 5 cm, and the oil pressing pressure of the oil press is 400 MPa-440 MPa.

[0011] As a further improvement of the technical solution, in S4, the revolution number of the pulverizer is above 3200 revolutions; and the fineness of the high-temperature hot-pressed bean cake powder is 80 meshes.

[0012] As a further improvement of the technical solution, in S4, the heating degree of the expander reaches 110°C-130°C.

[0013] As a further improvement of the technical solution, in S4, the cooler reduces the temperature of the expanded product to 12°C-16°C.

[0014] As a further improvement of the technical solution, in S5, the crusher crushes the product into 2 mm particles; the capacity of the receiving bin is 2 t.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the deep processing method of defatted soybean powder, the embryo punching machine processes soybeans into a thickness of 0.25mm to destroy the cell wall, and cooperates with the 206-type hydraulic cylinder oil press to work under a pressure of 400MPa to strongly squeeze the internal oil of the soybeans to separate them more quickly and thoroughly. This physical combination effectively improves the oil output efficiency and reduces the waste of raw materials. At the same time, the reasonable setting of the processing capacity of different equipment in each step makes the entire processing flow efficient and orderly, greatly improves the production efficiency, improves the stability and consistency of soybean powder product production, and thus improves the economic benefits.

[0016] 2. In the deep processing method of defatted soybean powder, in the raw material pretreatment stage, a series of operations such as cleaning, stone removal, magnetic separation, peeling, particle screening, polishing and color sorting are performed to improve the purity and quality of the soybean raw materials. The cooperation of the embryo punching machine and the oil press makes the oil extraction faster and reduces the production time. The subsequent puffing, crushing and crushing steps improve the overall production efficiency. In addition, the high oil yield can produce more products with less soybean raw materials, reducing the raw material cost, thereby meeting the consumer's demand for high-quality soybean products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a flowchart of the deep processing method of defatted soybean powder of the present invention; Figure 2 Detailed flow chart of the deep processing method of defatted soybean powder of the present invention Figure 3 It is a line graph of the purity, stability and nutritional value of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] according to Figure 1 and Figure 2 As shown, the embodiment of the present invention provides a method for deep processing of defatted soybean powder, comprising the following steps: Step 1: Raw material pretreatment: Prepare soybean raw materials, with a processing capacity of 50t / h. First, wash the soybeans, with a processing capacity of 8t / h. This can fully and carefully wash the soybeans, better remove surface impurities, and avoid incomplete cleaning due to excessive processing capacity. Then remove stones, with a processing capacity of 8t / h. Then pass through a magnetic separator, with a processing capacity of 8t / h, to remove metal impurities in the soybeans by magnetic adsorption to ensure the purity of the raw materials. Then enter the peeling machine to remove the outer skin of the soybeans, with a processing capacity of 15t / h. h, which not only improves the peeling quality, but also improves the production efficiency; the peeled soybeans are screened by the granulating screen, and the granulating screen has a processing capacity of 10t / h, which can make the peeled soybeans fully and evenly screened on the granulating screen; the soybean surface is treated by the polishing machine, and the polishing machine has a processing capacity of 10t / h, which can have enough time and space for surface treatment to ensure that the soybean surface is smoother; finally, the high-quality soybeans are selected by the color sorter, and the color sorter has a processing capacity of 8t / h, which can allow the soybeans to be accurately detected and screened in the color sorter and enter the raw material warehouse; Step 2: Heating and softening raw materials: The raw materials enter the boiler from the raw material bin for heating. The boiler heating temperature rises to 120°C. The heated soybeans enter the softening pot for further heating. The softening pot is heated to 50°C to soften the soybeans for subsequent processing. The softened soybeans enter the embryo punching machine for processing. The embryo punching machine processes the soybeans into a thickness of 0.25mm, and the soybean cell wall is destroyed by tableting to prepare for subsequent oil extraction; Step 3, oil pressing process: the soybeans after embryo piercing enter the small frying pan, the temperature of the small frying pan is raised to 100℃ to fry the soybeans, and the soybeans are heated in the small frying pan to make the oil inside the soybeans easier to extract in the subsequent oil pressing process. The fried soybeans enter the oil press for oil pressing. The oil press adopts a 206-type hydraulic cylinder oil press. The diameter of the oil cylinder of the oil press is 600mm and the thickness is 5cm. The oil pressing pressure of the oil press is 400MPa. When the fried soybeans enter the oil press, under the high pressure of 400MPa, the oil inside the soybeans is strongly squeezed out, which can effectively improve the oil yield. Under this pressure condition, the oil can be separated from the soybeans more quickly and thoroughly. The squeezed oil is cooled by the cooler to obtain soybean oil. The cooler reduces the temperature of the oil to 15℃; Step 4, puffing and crushing: the soybean cake after oil extraction enters the crusher, the revolution of the crusher is above 3200 revolutions, and the soybean cake is crushed into high-temperature hot-pressed soybean cake powder, and the fineness of the high-temperature hot-pressed soybean cake powder is 80 meshes; the high-temperature hot-pressed soybean cake powder enters the puffing machine for heat treatment, and the heat degree of the puffing machine reaches 120°C; the puffed product passes through the cooler, and the cooler reduces the temperature of the puffed product to 15°C to obtain full-fat puffed soybean powder; Step 5, final processing: The full-fat puffed soybean powder enters the crusher to crush the product, and the crusher crushes the product into 2mm particles. The crushed product is sent to the receiving bin with a capacity of 2t and is finally processed into defatted puffed soybean powder.

[0020] In the present invention, soybeans are first processed into a thickness of 0.25 mm by a germ punching machine, and the soybean cell walls are destroyed by tableting, which can not only improve the oil extraction efficiency of soybeans in an oil press, but also make the oil easier to extract. For example, a 206-type hydraulic cylinder oil press can be used to strongly squeeze out the oil inside the soybeans under a pressure of 400 MPa, effectively improving the oil extraction rate, and the oil can also be separated more quickly and thoroughly. The coordinated use of the germ punching machine and the oil press, this physical combination not only makes the oil separation more quickly and thoroughly, but also can effectively improve the efficiency and product quality of the entire defatted soybean powder deep processing method.

[0021] The soybeans are processed into 0.25mm thickness by the germ pressing machine to destroy the cell wall. The 206 hydraulic cylinder oil press works under a pressure of 400MPa to strongly squeeze the internal oil of the soybeans so that it can be separated more quickly and thoroughly. This physical combination effectively improves the oil extraction efficiency and reduces the waste of raw materials. At the same time, the reasonable setting of the processing capacity of different equipment in each step makes the entire processing flow efficient and orderly, greatly improving the production efficiency, improving the stability and consistency of soybean powder product production, and thus increasing economic benefits.

[0022] During the raw material pretreatment stage, a series of operations such as cleaning, stone removal, magnetic separation, peeling, sieving, polishing and color sorting are carried out to improve the purity and quality of the soybean raw materials. The cooperation of the germ punching machine and the oil press makes the oil extraction faster and reduces the production time. The subsequent puffing, crushing and crushing steps improve the overall production efficiency. In addition, the high oil yield can produce more products with less soybean raw materials, reducing the raw material cost, thereby meeting the consumer's demand for high-quality soybean products.

[0023] According to the dosage of the raw materials in the above invention, the deep processing of the defatted soybean powder provided by the present invention is further illustrated by the following specific examples. Example

[0024] Raw material dosage: soybean raw material with a processing capacity of 50t / h.

[0025] Raw material pretreatment: washing, stone removal, magnetic separation, peeling, particle screening, polishing and color sorting are carried out in sequence according to the above methods, and the processing capacity of each equipment is strictly implemented according to the requirements; Raw material heating and softening: soybeans are heated to 120℃ in the boiler from the raw material bin, then heated to 50℃ in the softening pot, and then processed into 0.25mm thickness in the embryo machine; Oil pressing process: after the embryo is pierced, the soybeans are put into a small frying pan and heated to 100℃, and then put into a 206-type hydraulic cylinder oil press (cylinder diameter 600mm, thickness 5cm, pressure 400MPa) for oil pressing. The squeezed oil is cooled to 15℃ by a cooler. Puffing and crushing: the soybean cake after oil extraction enters the crusher (3200 revolutions) to be crushed into 80 mesh high-temperature hot-pressed soybean cake powder, and then enters the puffing machine (heating degree 120℃). The puffed product is cooled to 15℃ in the cooler to obtain full-fat puffed soybean powder; Final processing: The full-fat puffed soybean powder enters the crusher and is crushed into 2mm particles, sent to the receiving bin, and finally processed into defatted puffed soybean powder.

[0026] Test example The purpose of this experimental group is to study the effects of different processing methods on the deep processing of defatted soybean flour.

[0027] Test objective: To detect the purity, stability and nutritional value of the defatted soy flour of the present invention.

[0028] Test method: Test group A adopts the deep processing method of defatted soybean powder provided in the embodiment; control group A and control group B are used as the control examples, wherein: Control group A Raw material dosage: soybean raw material with a processing capacity of 50t / h; raw material pretreatment: only simple cleaning is performed, and no subsequent operations such as stone removal, magnetic separation, and peeling are performed; the soybeans are directly fed into traditional oil pressing equipment for oil pressing; the soybean cakes after oil pressing are crushed, but no subsequent steps such as puffing are performed.

[0029] Control group B The processing method of the embodiment is adopted, but the oil press adopts a common oil press with a pressure of 300MPa, which is not applicable to the embryo-forming step.

[0030] Specific detection indicators are shown in Table 1.

[0031] Table 1 Test indicators of each sample Purity (%) stability(%) Nutritional value (%) Test Group A 92 88 85 Control group A 70 65 60 Control group B 76 70 72 According to Table 1 and Figure 3 As shown, the summary of the above comparative data is as follows: Purity: The purity of the test group A (adopting the deep processing method of defatted soybean powder of the present invention) was 92%; the purity of the control group A (directly pressing oil in a conventional way after simple washing without subsequent fine processing) was 70%; the purity of the control group B (adopting the processing method of the embodiment but using a common oil press and without the embryo pressing step) was 76%.

[0032] Stability: The stability of experimental group A was 88%; the stability of control group A was 65%; and the stability of control group B was 70%.

[0033] Nutritional aspects: The nutritional value of experimental group A was 85%; the nutritional value of control group A was 60%; and the nutritional value of control group B was 72%.

[0034] It can be seen that the effect of fine processing of raw material pretreatment steps (cleaning, stone removal, magnetic separation, peeling, particle screening, polishing and color sorting) is: In terms of purity, the experimental group A is 22% higher than the control group A and 16% higher than the control group B. This shows that comprehensive raw material pretreatment can effectively remove impurities and improve the purity of the product. The reduction of impurities helps to avoid adverse effects on product quality during subsequent processing, and also makes the final defatted soy flour purer; In terms of stability, the experimental group A was 23% higher than the control group A and 18% higher than the control group B. The fine pretreatment made the raw materials more uniform and pure, providing a stable foundation for subsequent processing, thereby improving the stability of the product; In terms of nutritional value, the experimental group A was 25% higher than the control group A and 13% higher than the control group B. While removing impurities, it also reduced the damage to the nutrients and made it possible to better retain the nutrients of soybeans during subsequent processing; It mainly depends on the effect of cooperation between the embryo pressing machine and a specific oil press (206 hydraulic cylinder oil press, pressure 400MPa): In terms of purity, the control group B did not use the embryo punching step and the oil press pressure was lower, so its purity was lower than that of the experimental group A. The embryo punching machine destroyed the soybean cell wall, making the oil easier to extract and reducing the impact of residual oil on the purity of the product. At the same time, the high-pressure oil press can squeeze out the oil more thoroughly and improve the purity of the product; In terms of stability, the combination of high-pressure oil pressing and embryo binding steps makes the oil extraction more complete and the product structure more stable. The stability of the test group A is 18% higher than that of the control group B, which shows that this technical feature improves the stability of the product; In terms of nutrition, suitable processing conditions can better retain the nutritional components of soybeans. The nutritional value of test group A is 13% higher than that of control group B, indicating that the combination of embryo punching machine and high-pressure oil press is helpful to improve the nutritional value of the product.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for deep processing of defatted soybean flour, characterized in that: The following steps are involved: S1. Raw material pretreatment: Prepare the soybean raw material, first wash it, then remove the stone, then pass it through the magnetic separator to remove the metal impurities in the soybean by magnetic adsorption, then enter the peeling machine to remove the outer skin of the soybean, the peeled soybean is sieved through the particle sieve, and then the surface of the soybean is treated by the polishing machine, and finally the high-quality soybean is selected by the color sorter and enters the raw material warehouse; S2. Raw material heating and softening: The raw materials enter the boiler for heating from the raw material bin. The heated soybeans enter the softening pot for further heating to soften the soybeans. The softened soybeans enter the embryo machine for processing to prepare for subsequent oil extraction; S3, oil pressing process: the soybeans after embryo extraction are put into a small frying pan, the fried soybeans are put into the oil press for oil pressing, and the pressed oil is cooled by a cooler to obtain soybean oil; S4, puffing and crushing: the soybean cake after oil extraction enters the crusher to crush the soybean cake into high-temperature hot-pressed soybean cake powder; the high-temperature hot-pressed soybean cake powder enters the puffing machine for thermal treatment; the puffed product passes through the cooler to obtain full-fat puffed soybean powder; S5. Final processing: The full-fat puffed soybean powder enters the crusher to be crushed. The crushed product is sent to the receiving bin and is finally processed into defatted puffed soybean powder.

2. The deep processing method of defatted soybean meal according to claim 1, characterized in that: In S1, The soybean raw material processing capacity is 45t / h-50t / h; The soybean cleaning processing capacity is 7t / h-9t / h; The soybean de-stone processing capacity is 7t / h-9t / h; The processing capacity of the magnetic separator is 7t / h-9t / h; The processing capacity of the peeling machine is 14t / h / 16t / h; The processing capacity of the sieving screen is 8t / h-12t / h; The polishing machine has a processing capacity of 8t / h-12t / h; The processing capacity of the color sorter is 7t / h-9t / h.

3. The deep processing method of defatted soybean meal according to claim 1, characterized in that: In S2, the boiler heating temperature is increased to 110°C-130°C, and the softening pot is heated to 45°C-55°C.

4. The deep processing method of defatted soybean meal according to claim 1, characterized in that: In S2, the germ forming machine processes the soybeans into a thickness of 0.25 mm.

5. The deep processing method of defatted soybean meal according to claim 1, characterized in that: In S3, the temperature of the small frying pan is raised to 95°C-110°C to fry the soybeans; and the cooler lowers the temperature of the oil to 12°C-16°C.

6. The deep processing method of defatted soybean meal according to claim 1, characterized in that: In S3, the oil press adopts a 206-type hydraulic cylinder oil press, the diameter of the cylinder of the oil press is 600 mm, the thickness is 5 cm, and the oil pressing pressure of the oil press is 400 MPa-440 MPa.

7. The method for deep processing of defatted soybean meal according to claim 1, characterized in that: In S4, the number of revolutions of the pulverizer is above 3200 revolutions; and the fineness of the high-temperature hot-pressed bean cake powder is 80 meshes.

8. The method for deep processing of defatted soybean meal according to claim 1, characterized in that: In S4, the heating degree of the expander reaches 110°C-130°C.

9. The method for deep processing of defatted soybean meal according to claim 1, characterized in that: In S4, the cooler reduces the temperature of the expanded product to 12°C-16°C.

10. The deep processing method of defatted soybean meal according to claim 1, characterized in that: In S5, the crusher crushes the product into 2 mm particles; the capacity of the receiving bin is 2 t.

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