CN108378192B - Soybean protein isolate breaking system and method - Google Patents
Soybean protein isolate breaking system and method Download PDFInfo
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- CN108378192B CN108378192B CN201810235478.0A CN201810235478A CN108378192B CN 108378192 B CN108378192 B CN 108378192B CN 201810235478 A CN201810235478 A CN 201810235478A CN 108378192 B CN108378192 B CN 108378192B
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23J—PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
- A23J1/00—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites
- A23J1/14—Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites from leguminous or other vegetable seeds; from press-cake or oil-bearing seeds
Abstract
The invention relates to a soybean protein isolate breaking system which comprises a separator and a feeding screw pump, wherein the separator is connected with the feeding screw pump. According to the soybean protein isolate breaking system provided by the invention, the functions of the existing breaking machine, a curd pump and a shear pump are replaced by extruding, breaking and conveying the materials by using the feeding screw pump, the feeding screw pump is not easy to breed dead corners, so that the microorganism of the product is easier to control, the product quality is improved, the operation steps are reduced, the production efficiency is improved, the energy consumption is reduced, and the system structure is simplified.
Description
Technical Field
The invention relates to the technical field of soybean protein isolate, in particular to a soybean protein isolate breaking system and a method.
Background
The soybean protein is a high molecular organic polymer formed by combining amino acids through peptide bonds, and mainly comprises albumin and globulin, wherein the globulin accounts for about 90 percent. The protein content in the soybean protein isolate is more than 90 percent. The isolated soy protein is nutritious and free of cholesterol, and can be used as a beneficial supplement for animal protein.
The isolated soy protein has high protein content, can effectively reduce the intake of cholesterol and saturated fat, achieves balanced nutrient intake, and can effectively reduce the content of total cholesterol and low-density lipoprotein cholesterol in human blood, thereby reducing the risk of heart disease; the isolated soy protein has excellent application value as a functional food. With the improvement of the living standard of people, the demand of the soybean protein isolate is increasing.
In the prior art, the typical production process of the soybean protein isolate is an alkali-soluble acid-precipitation method, namely, soybean meal is soaked in weak alkali liquor to dissolve protein in the weak alkali liquor, and insoluble fiber is separated and removed by a separator to leave a solution containing protein; adding food-grade hydrochloric acid into the protein solution, precipitating protein, recovering, adjusting pH and concentration of the recovered protein solution, sterilizing, and spray drying. The method generally adopted for controlling the acid precipitation is that the acid precipitated materials enter a disintegrator to be disintegrated, then the materials are pumped out by a curd pump, and the materials are sheared and pumped into a neutralization tank to be neutralized. The soybean protein isolate breaking system used in the method has the following problems:
1. dead corners are easy to grow on the lower pipeline of the separator, the inside of the disintegrator, the surface of the tank and the like, and microorganisms of the product are difficult to control, so that the quality of the product is influenced;
2. in the operation process, a disintegrator, a curd pump and a shearing pump are required, and the operation steps are multiple, so that the production efficiency is low, the energy consumption is high, and the system structure is complex.
Disclosure of Invention
Accordingly, the present invention is directed to a soy protein isolate dehulling system that solves at least one of the problems set forth above.
The technical scheme of the invention is as follows: a soybean protein isolate breaking system comprises a separator and a feed screw pump, wherein the separator is connected with the feed screw pump.
Optionally, the system further comprises a flange connection reducing unit and a shock absorber, wherein one end of the flange connection reducing unit is connected with the separator, the other end of the flange connection reducing unit is connected with the shock absorber, and the shock absorber is connected with the feeding screw pump.
Optionally, the system further comprises a water seal mechanism and a connection short circuit, wherein the water seal mechanism is located between the shock absorber and the feeding screw pump, one end of the water seal mechanism is connected with the shock absorber, the other end of the water seal mechanism is connected with the connection short circuit, and the connection short circuit is connected with the feeding screw pump.
Optionally, the separator comprises a first extraction tank, a first extraction separator, a second extraction tank, a second extraction separator, a mixed soybean milk tank, an acid precipitation tank and an acid precipitation separator, wherein the first extraction tank, the first extraction separator, the second extraction tank, the second extraction separator, the acid precipitation tank, the acid precipitation separator and the feed screw pump are sequentially connected; the soybean milk tank is also connected with the extraction separator, a mixed soybean milk pump is arranged in the soybean milk tank, and the output end of the mixed soybean milk pump is connected with the acid precipitation tank; the secondary extraction separator is also connected with a packing auger.
According to the soybean protein isolate breaking system provided by the invention, the functions of the existing breaking machine, a curd pump and a shear pump are replaced by extruding, breaking and conveying the materials by using the feeding screw pump, the feeding screw pump is not easy to breed dead corners, so that the microorganism of the product is easier to control, the product quality is improved, the operation steps are reduced, the production efficiency is improved, the energy consumption is reduced, and the system structure is simplified.
The invention also provides a method for breaking the isolated soy protein, which is realized by using the breaking system and comprises the following steps:
(1) taking low-temperature edible soybean meal as a raw material, wherein cp of the soybean meal is more than or equal to 54.5%, nsi of the soybean meal is more than or equal to 84.5%, taking a proper amount of low-temperature soybean meal, preparing a process water with the temperature of 34 +/-3 ℃, and the pH value of an aqueous solution of 7 +/-0.5, and mixing the raw materials according to the ratio of 8: 1, dissolving and separating in an extraction tank for 45 +/-5 minutes to obtain an extraction liquid;
(2) conveying the first extraction extract liquid to a first extraction separator for separation, allowing a solid phase to enter a second extraction tank, allowing a liquid phase to enter a mixed soybean milk tank, allowing the second extraction tank to perform second extraction, allowing the second extraction liquid to enter a second extraction separator, allowing the separated solid phase to enter a packing auger for output, and allowing the liquid phase to enter the mixed soybean milk tank;
(3) conveying the materials in the mixed soybean milk tank to an acid precipitation tank through a mixed soybean milk pump for sedimentation, adding food-grade hydrochloric acid in the conveying process, and controlling the pH value to be 4.4-4.5; and after sedimentation, the solid-phase curd enters an acid sedimentation separator for separation, and after separation, the solid-phase curd enters a screw pump and is conveyed to a neutralization process for neutralization.
The invention also provides a method for breaking the isolated soy protein, which can obviously reduce the total number of bacterial colonies in the system, effectively reduce oversize products after curd breaking, improve the product quality, reduce the operation steps and improve the production efficiency.
Drawings
FIG. 1 is a schematic view of a front mounting structure of a soybean protein isolate crushing system according to the present invention;
FIG. 2 is a schematic side view of a soybean protein isolate breaking system according to the present invention;
FIG. 3 illustrates a schematic structural view of a separator provided by the present invention;
FIG. 4 is a schematic view of a shock absorber according to the present invention;
FIG. 5 is a schematic structural diagram of a water seal structure provided by the invention;
FIG. 6 is a schematic sectional view showing a horizontal part and an inclined part of the bottom of the connection pipe;
wherein, the separator-11; an extraction tank-111; an extraction separator-112; a second extraction tank-113; a second extraction separator-114; mixed soybean milk tank-115; acid precipitation tank-116; acid precipitation separator-117; an auger-118; a feeding screw pump-12; flange connection reducing-13; a shock absorber-14; an inner container-141; a shock absorbing bellows-142; a first connecting flange-143; a connecting tube-144; a water seal mechanism-15; a water-sealed inner pipe-151; a water seal outer pipe-152; a second attachment flange-153; a sealing portion-154; horizontal end-155; an angled end-156; water-feeding pipe-157; a short-circuit-16 is connected.
Detailed Description
The technical scheme of the invention is described in detail in the following with reference to the accompanying drawings.
Example 1, the present invention provides a soybean protein isolate breaking system, which comprises a separator 11 and a feeding screw pump 12, referring to fig. 1 and 2, the separator is connected with the feeding screw pump, and the curd end of a general separator is connected with the feeding screw pump by a closed pipeline.
According to the soybean protein isolate breaking system provided by the invention, the functions of the existing breaking machine, a curd pump and a shear pump are replaced by extruding, breaking and conveying the materials by using the feeding screw pump, the feeding screw pump is not easy to breed dead corners, so that the microorganism of the product is easier to control, the product quality is improved, the operation steps are reduced, the production efficiency is improved, the energy consumption is reduced, and the system structure is simplified.
In order to reduce the influence of shaking between the separator main body and lower equipment on the equipment, the system is also provided with a shock absorber 14, one end of the flange connection reducing is connected with the separator, the other end of the flange connection reducing is connected with the shock absorber, and the shock absorber is connected with the feeding screw pump.
In actual production, the separator rotates to generate gas, the protein brought out by the gas can cause environmental pollution, the system can also comprise a water seal mechanism 15 positioned between the shock absorber and the feeding screw pump, and the system can also comprise a connecting short circuit 16 positioned between the shock absorber and the feeding screw pump for facilitating maintenance and internal cleaning;
in the present application, the flange reducing and shock absorber may use the existing structure, the shock absorber is preferably a square shock absorber, and preferably the following structure, see fig. 4, including an inner container 141 and a shock absorbing corrugated tube 142, the inner container and the shock absorbing corrugated tube are integrated, two ends of the shock absorbing corrugated tube are provided with first connecting flanges 143, the first connecting flange at the upper end is connected with the flange reducing, and the bottom of the first connecting flange at the lower end is provided with a connecting pipe 144 with a diameter smaller than the outer diameter of the first flange; the water seal mechanism and the connection short circuit can use the existing structure, the simplest mode of the connection short circuit is that the substrate comprises a side cover which can be detachably connected, the upper end and the lower end of the substrate are respectively connected with a shock absorber and a feed screw pump, the side cover can be conveniently overhauled and cleaned, the water seal mechanism preferably adopts the following structure, see fig. 5, the structure comprises a water seal inner pipe 151 and a water seal outer pipe 152, the water seal inner pipe and the water seal outer pipe are clamped in by intervals used for connecting pipes, the two ends of the water seal outer pipe 152 are provided with second connecting flanges 153, the bottoms of the water seal inner pipe and the water seal outer pipe are provided with sealing parts 154, the sealing parts connect the bottoms of the water seal inner pipe and the water seal outer pipe into a whole, the top of the sealing parts is integrally provided with a horizontal end 155 and an inclined end 156, the horizontal end is connected with the water seal outer pipe, the inclined end is connected with the water seal inner pipe, and the distance from the bottom to the water-sealed inner pipe is greater than the distance from the top to the water-sealed inner pipe, the bottom of the connection pipe is certainly provided with a horizontal part and an inclined part which are matched with the shape of the sealing part, as shown in fig. 6, so that, the bottom of the connecting pipe is inserted between the water seal inner pipe and the water seal outer pipe, the bottom of the connecting pipe is matched with the sealing part, the albumen is not easy to be carried and continuously overflow through a gap between the two inclined ends, a gap between the two horizontal ends and a gap between the water seal inner pipe and the water seal outer pipe, especially after the gap between the two inclined ends, the gap between the two horizontal ends and the gap between the water seal inner pipe and the water seal outer pipe are sealed by water or other liquid during use, the air is not easy to pass, of course, to facilitate water sealing, the water seal outer tube may be provided with a water feeding pipe 157, which is preferably located near the horizontal end.
In the present application, the existing separator can be used as the separator, and in order to improve the product quality, referring to fig. 3, the separator includes a first extraction tank 111, a first extraction separator 112, a second extraction tank 113, a second extraction separator 114, a mixed soybean milk tank 115, an acid precipitation tank 116 and an acid precipitation separator 117, and the first extraction tank, the first extraction separator, the second extraction separator, the acid precipitation tank, the acid precipitation separator 117 and the feed screw pump 12 are connected in sequence; the soybean milk tank is also connected with the extraction separator, a mixed soybean milk pump is arranged in the soybean milk tank, and the output end of the mixed soybean milk pump is connected with the acid precipitation tank; the secondary extraction separator is also connected with a packing auger 118. The mixed milk pump may be an existing pump for transportation, but it is needless to say that the mixed milk may be transported by a pump for transportation or other transport means between the tank and the separator.
In example 2, the present invention also provides a method for dehulling soy protein isolate, which is implemented using the dehulling system described above, comprising the steps of:
(1) the method is characterized in that low-temperature edible soybean meal is used as a raw material, wherein cp (crude protein) of the soybean meal is more than or equal to 54.5%, nsi (nitrogen solubility index) of the soybean meal is more than or equal to 84.5%, and a proper amount of the low-temperature soybean meal is taken, so that an extraction tank for 1.3 tons of the soybean meal can be used, that is, 1.3 tons of the low-temperature soybean meal are taken at one time, the water temperature of prepared process water is 34 +/-3 ℃, the pH value of an aqueous solution is 7 +/-0.5, and the method is characterized in that: 1 in an extraction tank 111, dissolving and separating for 45 +/-5 minutes to obtain an extraction feed liquid, and detecting to dilute the soybean meal with water to obtain the extraction feed liquid with the pH of 6.5 +/-0.5 and the bx (sugar degree) of 9.5 +/-0.5 after dissolution;
(2) the first extraction liquid is conveyed to a first extraction separator 112 for separation, the solid phase enters a second extraction tank 113, the liquid phase enters a mixed soymilk tank 115, the second extraction tank performs second extraction and enters a second extraction separator 114, the separated solid phase enters a packing auger for output, and the liquid phase enters the mixed soymilk tank;
(3) conveying the materials in the mixed soybean milk tank to an acid precipitation tank 116 through a mixed soybean milk pump for precipitation, adding food-grade hydrochloric acid in the conveying process, and controlling the pH value to be 4.4-4.5; after sedimentation, the solid curd is separated in an acid sedimentation separator 117, and after separation, the solid curd is conveyed to a screw pump 12 to be neutralized in a neutralization process.
It should be noted that the front end and the rear end of the present application are defined in terms of the front-rear direction of the soybean protein isolate disruption system when it is used.
Through detection, the soybean protein isolate extraction system and the method can obviously reduce the total number of bacterial colonies in the system, and effectively reduce oversize products after curd breaking.
The results are shown in Table 1, and 1.3 tons of soybean meal are used as the raw material in this experiment.
TABLE 1
The following table 2 is a detection index condition of a conventional method using 1.3 tons of soybean meal as a raw material: the traditional breaking mode is adopted, the curd solid phase enters a breaker, constant breaking is carried out by keeping the liquid level of 30%, then the curd solid phase is conveyed to a shearing pump through a curd conveying pump, and finally the curd solid phase enters a neutralization tank.
TABLE 2
Table 3 shows comparison in terms of energy consumption
TABLE 3
Therefore, the system has a good energy-saving effect.
The above-described embodiments are merely illustrative of the invention and should not be described in the context of the exemplary embodiments of the description and the figures, which limit the scope of protection of the patent rights.
The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples described above, and various changes can be made within the knowledge of those skilled in the art without departing from the concept of the present invention. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim.
Claims (3)
1. A soybean protein isolate breaking device is characterized by comprising a separator (11), a feeding screw pump (12), flange connecting reducing pipes (13), a shock absorber (14), a water sealing mechanism (15) and a connecting short joint (16);
the separator is connected with the feeding screw pump, one end of the flange connection reducing is connected with the separator, the other end of the flange connection reducing is connected with the shock absorber, and the shock absorber is connected with the feeding screw pump; the water seal mechanism (15) and the connecting short circuit (16) are located between the shock absorber and the feeding screw pump, one end of the water seal mechanism is connected with the shock absorber, the other end of the water seal mechanism is connected with the connecting short circuit, and the connecting short circuit is connected with the feeding screw pump.
2. The soybean protein isolate breaking apparatus according to claim 1, wherein the separator comprises an extraction tank (111), an extraction separator (112), a second extraction tank (113), a second extraction separator (114), a mixed soybean milk tank (115), an acid precipitation tank (116) and an acid precipitation separator (117), and the extraction tank, the extraction separator, the acid precipitation separator and the feed screw pump are sequentially connected;
the soybean milk tank is also connected with the extraction separator, a mixed soybean milk pump is arranged in the soybean milk tank, and the output end of the mixed soybean milk pump is connected with the acid precipitation tank;
the secondary extraction separator is also connected with a packing auger (118).
3. A method for dehulling soy protein isolate, characterized in that the dehulling method is carried out using the dehulling apparatus of claim 1 or 2, comprising the steps of:
(1) taking low-temperature edible soybean meal as a raw material, wherein cp of the soybean meal is more than or equal to 54.5%, nsi of the soybean meal is more than or equal to 84.5%, taking a proper amount of low-temperature soybean meal, preparing a process water with the temperature of 34 +/-3 ℃, and the pH value of an aqueous solution of 7 +/-0.5, and mixing the raw materials according to the ratio of 8: 1, dissolving and separating in an extraction tank (111) for 45 +/-5 minutes to obtain an extraction liquid;
(2) the first extraction liquid is conveyed to a first extraction separator (112) and then separated, the solid phase enters a second extraction tank (113), the liquid phase enters a mixed soymilk tank (115), the second extraction tank carries out second extraction and enters a second extraction separator (114), the separated solid phase enters a packing auger and is output, and the liquid phase enters the mixed soymilk tank;
(3) conveying the materials in the mixed soybean milk tank to an acid precipitation tank (116) through a mixed soybean milk pump for precipitation, adding food-grade hydrochloric acid in the conveying process, and controlling the pH value to be 4.4-4.5; after settling, the solid curd enters an acid settling separator (117) for separation, and after separation, the solid curd enters a screw pump (12) and is sent to a neutralization process for neutralization.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3972861A (en) * | 1974-11-26 | 1976-08-03 | The United States Of America As Represented By The Secretary Of Agriculture | Process for producing an edible cottonseed protein concentrate |
| JPS62253345A (en) * | 1985-12-07 | 1987-11-05 | Nisshin Oil Mills Ltd:The | Production of vegetable proteinaceous food |
| CN2049470U (en) * | 1988-09-09 | 1989-12-20 | 长春市动力元件厂 | Screw push rod structure for vegetable protein squeezer |
| EP2022341B1 (en) * | 2007-07-26 | 2018-12-12 | CFT S.p.A. | A process for milling soya beans |
| CN201451222U (en) * | 2009-04-10 | 2010-05-12 | 河南华泰粮油机械工程有限公司 | Complete equipment for separating protein from rice bran |
| CN101558814B (en) * | 2009-05-15 | 2011-10-12 | 山东省高唐蓝山集团总公司 | Production technology of dual-crop compound protein isolates |
| CN101558815B (en) * | 2009-05-15 | 2011-10-12 | 山东省高唐蓝山集团总公司 | Technology for producing compound protein concentrates |
| CN101766254A (en) * | 2009-12-31 | 2010-07-07 | 山东万得福实业集团有限公司 | Method for preparing low-sodium healthcare isolated soy protein |
| CN102630805B (en) * | 2012-04-26 | 2013-04-10 | 北京金地三福膨化机制造(大厂)有限公司 | Manufacturing method for drawing protein |
| CN103734452A (en) * | 2013-12-27 | 2014-04-23 | 临邑禹王植物蛋白有限公司 | Production method of high-gel soy protein concentrate |
| CN105660987A (en) * | 2016-01-20 | 2016-06-15 | 山东禹王生态食业有限公司 | Pipe bundle device and method for extracting isolated soybean protein in ultrasonic-assisted manner |
| CN106562215A (en) * | 2016-05-13 | 2017-04-19 | 江苏全盈生物科技有限公司 | Spicy-flavored wire-drawing protein and producing method thereof |
| CN106798072A (en) * | 2016-12-30 | 2017-06-06 | 山东禹王生态食业有限公司 | A kind of protein preparation method for improving soybean protein isolate dispersiveness |
| CN107198016A (en) * | 2017-05-19 | 2017-09-26 | 山东禹王生态食业有限公司 | A kind of extracting method of soybean protein isolate |
| CN107789859A (en) * | 2017-11-07 | 2018-03-13 | 山东禹王生态食业有限公司 | A kind of soybean protein isolate multitple extraction system and method |
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