KR100484614B1 - Method of producing powder of soybean using microwave drier - Google Patents

Abstract

The present invention relates to a method for manufacturing raw soybean powder by microwave dielectric heating drying method, which comprises: a step of drying raw soybean-a process of separating the skin and cotyledons of the young part-cotyledon drying process-grinding process-crude powder drying process-fine In the manufacturing method of raw soybean powder comprising a powdering step-fine powder drying step; In the cotyledon drying process, 18-20% water content of soybeans selected by the magnetic line selection process is soaked at a water content of 8-10% by sterilization of heated ozone (O ₃ ) gas at 60 ° C-80 ° C in an ozone hot air circulation dryer. Is a process of drying ozone (O ₃ ) hot air, and the crude powder drying step is a friction heat generation phenomenon caused by micromolecular culture generated in a microwave generator at 60 ° C. to 80 ° C. through a dielectric heating unit which is a microwave dielectric heating dryer. A step of drying the 2-4 equally cotyledons with a moisture content of 3-5% and inactivating the oxidase lipoxygenase, wherein the micropowder drying process passes the active soybean powder through a belt type microwave dielectric heating dryer. Belt type micro oilfield to dry the powder activated by friction culture by molecular cultivation to less than 2% of water content due to simultaneous heating of outside and inside It is characterized by a thermal drying step.

Description

Method for producing raw soybean powder by microwave dielectric heating drying method {Method of producing powder of soybean using microwave drier}

The present invention relates to a method for producing raw soybean powder of microwave dielectric heating drying method, which eliminates the problems caused by micropowderization of raw soybean, which is widely used as a food processing material for various uses, and a method for producing high-nutrition raw soybean powder. It is about the provision of.

Raw soybean powder is widely used as beverages, secondary processing ingredients and the like. This seems to be due to the increasing demand according to the recognition that raw soybean powder has a high digestive absorption rate and may be useful as a disease treatment aid for various uses. Activated raw soybean powder is also widely used as a raw material for a variety of food production.

However, the powdered raw soybeans are known in the industry as having the following problems.

(1) In pulverizing raw soybean, the powder refined by crushed frictional heat causes carbonization and also causes problems such as entanglement due to degeneration of valuable nutrients such as proteins and lipids and reduction of nutrients.

(2) It is also known that most of the hot air is blown to dry prior to powdering, which causes heat denaturation and nutrient destruction even when dried by the hot air. In particular, when drying at a low temperature, a characteristic fishy smell occurs, which makes it difficult to use as a processing material.

In order to solve this problem, various configurations have been devised from the prior art. As the configuration of the prior application, various methods for maintaining an appropriate drying temperature as steam heating have been devised in various ways, but such a steam heating method needs to increase the heating time and thus does not solve the problem of thermal degeneration.

The conventional structure is characterized in that most processes go through the process of drying the raw soybean, the process of separating the peel and the cotyledons, the drying process, the grinding process, the redrying process, and the powdering process. There is not much, and each of the technical features is merely to dry in the process described above.

In recent years, such a drying method has been proposed, which is not a conventional hot air or steam heating method, for example, a drying method by far-infrared radiation.

In this method of drying by far-infrared radiation, it is laid long on the flow path of soy cotyledon of raw soybean to process the radiation plate emitting far-infrared rays to emit far-infrared rays to heat and dry by electromagnetic energy.

That is, as shown in Fig. 1, it consists of a tower shape standing up as part of the processing process of soybean powder, and has a far-infrared radiation mechanism (UV) and a heating mechanism (shape-shaped) on the flow path (F) of cotyledon or powder of fresh soybean. Drying is performed by disposing HT) on the entire flow path (F).

However, this far-infrared radiation method has the advantage of easy penetration into raw soybean due to the relatively long wavelength of infrared rays. However, the configuration of the whole radiation plate is very expensive and the temperature control over the length of the whole radiation plate is easy. Difficulty is said to have a major flaw. In addition, it takes a long time for the long wavelength of far-infrared rays to penetrate and act on the material to be dried, which also increases the processing time and the energy consumption.

In addition, the far-infrared radiation should be configured so that the heating means is wound around the heating coil to the various ceramics emitting far-infrared rays or the heating fluid passes therein. Difficulties in application are seen as difficult to apply. In addition, the preparation method of raw soybean powder by far-infrared radiation is not considered to be optimal for removal in fishy fish by a specific solubilizing enzyme.

The present invention has been made in view of the problems of the above-described conventional drying method, particularly the process of the far-infrared heating method, and focuses mainly on improving the problem of the far-infrared drying method.

The manufacturing method of the raw soybean powder of the microwave dielectric heating drying method of the present invention devised in view of the problems of the conventional structure described above, the drying and powdering of raw soybean through the dielectric (dielectric) heating It is to provide a method for producing raw soybean powder of microwave dielectric heating drying method to minimize the denaturation of the powder and to improve the powder state by performing.

Method for producing raw soybean powder of the microwave dielectric heating drying method of the present invention devised in view of the above problems;

In the method of manufacturing raw soybean powder, comprising the steps of drying raw soybeans-a process of separating the skin and cotyledons of the shell- cotyledon-drying-grinding-crude powder-drying process-fine powder-processing-fine powder drying ;

In the cotyledon drying process, 18-20% water content of soybeans selected by the magnetic line selection process is soaked at a water content of 8-10% by sterilization of heated ozone (O ₃ ) gas at 60 ° C-80 ° C in an ozone hot air circulation dryer. Ozone (O ₃ ) hot air drying process,

The coarse powder drying process is a friction heat generation phenomenon by the micromolecular culture generated in the microwave generator at 60 ° C.-80 ° C. through a dielectric heating unit which is a microwave dielectric heating dryer. % Drying and inactivation of the oxidase lipoxygenase,

In the fine powder drying process, the active soy powder is passed through a belt-type microwave dielectric heating dryer to dry the powder activated by friction heat generation by molecular culture of microwaves to a moisture content of less than or equal to 2% due to simultaneous heat generation from the outside and the inside. It is characterized in that the third belt type micro-dielectric heating drying process.

Another feature of the method for producing raw soybean powder of the microwave dielectric heating drying method of the present invention;

The dielectric heating unit is one or a plurality of drying devices disposed on the conveyor flow path, and varies according to the size and processing capacity of the equipment. The magnetron 32 and the waveguide are disposed in the shielding casing 31 and placed on the conveyor. It is heating and drying the cotyledon and powder body of flowing raw soybean.

Additional features of the method for producing raw soybean powder of the microwave dielectric heating drying method of the present invention;

The final soybean powder produced by the above process is 100-900mesh and the component content is: 2%-2. Protein: 40%-3. Lipid: 18%-4. Carbohydrate: 20% -5 NSI index: 28%-6. Inclusionary physiologically active substances (phenolic acid; PHENOLICACIDS, isoflavones; ISOFLAVONES, phytate; PHYTATE, lignan; LIGNANS, saponins; SAPONINS, cellulose; CELLULOSE, peptides; PEPTIDE, lecithin; LECITHIN ) And to include).

The production method of the raw soybean powder of the microwave dielectric heating drying method of the present invention together with the accompanying drawings will be described in more detail.

Fig. 1 is a schematic diagram showing the construction of a plant showing one step in a method for producing raw soybean powder of the prior art known in the art; It is explanatory drawing explaining the wavelength characteristic of the.

The two most important problems in powdering raw soybean from the prior art which focused on the present invention are the following.

(1) First of all, it is the induction of fishy smell caused by oxidation by lipoxygenase, an oxidase in raw soybean, which is the biggest obstacle in processing processed soybean powder.

(2) Then, the degeneration of proteins, oxidation, and other useful nutrients caused by activation due to the increase in surface area due to the powdering of raw soybeans act as very disadvantageous aspects for secondary processing.

Therefore, the powdering of raw soybeans is the most important technical consideration point to minimize the occurrence of fishy smells and also to carry out the maintenance of nutrients.

In order to solve the above problems, the drying method of the raw soybean powder in the present invention is basically based on the dielectric heating method using a microwave, and for removing the fishy smell it is characterized in that the addition of ozone processing method.

The characteristics of the microwave (M) shown in Figure 2 is a radio wave with a wavelength of 10 ^-3 to 1m, the frequency is 30 Mhz-300Ghz, intermolecular by rotating the electrode electrode of the dielectric that does not flow a current while passing the radio waves It is a well-known heating method for heating with frictional heat.

The internal heating of drying by microwave and energy efficiency of up to 80%, almost no change in the physical properties of the object to be treated, and only the microwave generator is installed in a specific area without causing pollution by-products. In addition to this minimized advantage, it has the advantage of extremely simple maintenance.

In addition, it is possible to continuously dry the object to be dried for a short time, and thus it is seen as being most suitable for drying the object flowing on the conveyor.

The ozone sterilization method introduced to remove the characteristic fishy smell is to apply the sterilization and deodorizing power of ozone (O ₃ ), and utilizes the property of generating oxygen (Nascent Oxygen) by separation of the third atom having weak bonding in air. It is known to have 6 times stronger deodorizing power than chlorine.

Therefore, it is considered to be the most preferable as a deodorizing means for preventing fishy smell caused by the oxidation action of lipoxygenase in soybean and deodorizing without adversely affecting nutrients and other useful components.

The manufacturing method of the raw soybean powder of the microwave dielectric heating drying method of the present invention introduced with such a basic application will be described in more detail with reference to FIG. 3.

Figure 3 is a flow chart explaining the process of the manufacturing method of raw soybean powder of the microwave dielectric heating drying method of the present invention, Figure 4 is a process showing the ozone drying unit of the manufacturing method of the raw soybean powder of the microwave dielectric heating drying method of the present invention. Fig. 5 is a process diagram showing an installation of the crude powder drying step of the manufacturing method of the raw soybean powder of the microwave dielectric heating drying method of the present invention. Fig. 6 is a drawing of the microwave dielectric heating drying method of the present invention. It is a process part drawing of the fine powder dielectric heating apparatus of the manufacturing method of soybean powder.

In the process flow diagram of a processing method using a method for producing raw soybean powder of the microwave dielectric heating drying method of the present invention shown in Figure 3,

Raw Material Selection Process (100)

Fresh soybeans with a certain amount of water content of 18-20% are introduced into the raw material sorter to remove and remove foreign substances.

[Ozone hot air circulation drying process] (101)

Raw soybean with a water content of 18-20% from which foreign matters were removed was introduced into the grain storage tank 10 of the ozone hot air circulation drying apparatus of FIG. 4 and blown with electric hot air at 60-80 ° C. in the blower to generate an ozone generator 11 and A blower 12 for injecting ozone generated by fluid connection and a hot air generator 13, which is a heating element in which heating coils are disposed, are disposed in the ozone hot air generated by drying the ozone hot air duct 14 for grain. When feeding to the storage tank 10, the soybeans are dried at a water content of 5-8% without thermal denaturation by the sterilization activity of ozone in the soybeans.

15 is a bucket elevator for inputting grain soybeans into the grain storage tank (10).

Primary Grinding Process (102)

It is a general purpose of various composition which does not show the dried soybean with water content of 5-8%. It is divided into 2-4 equals by using a general type of hairlid, so that the dermis is separated from the dermis of the soybean and the dermis is discharged to the outside. Are separated.

[1st microwave dielectric heating drying process] (103)

A microwave dielectric heating drying apparatus having a configuration suitable for applying the method for producing raw soybean powder of the microwave dielectric heating drying method shown in FIG. 5 will be described.

The separated cotyledon of the above-mentioned raw soybeans is put into the dry waiting tank 21 for primary storage as the bucket elevator 20 installed at the upper end of the upright tower type, and the green soybeans by a predetermined amount at the lower end of the dry waiting tank 21. Quantitative supply device 22 for supplying cotyledon of the plant is disposed.

As shown in the drawing, the drying facility includes a plurality of dielectric heating units 30 disposed on the Z conveyor 23 arranged in a zigzag form from above and below the generally rectangular frame 300.

The dielectric heating unit 30 may be one or plural, and varies according to the size and processing capacity of the facility. The magnetron 32, which is conventional in the shielding casing 31 for preventing the outflow of microwaves to the outside, has various configurations. It is preferable that it is a box-shaped body comprised by disposing a waveguide not shown.

Moreover, below the Z conveyor 23, the belt conveyor 24 for transfer to the next process is arrange | positioned.

By using the above-mentioned dielectric heating unit 30, the electromagnetic wave is generated by supplying the electron energy of 60 ° C-80 ° C, and the soy cotyledon divided into 2-4 parts is transferred through the Z conveyor 23, and the soy cotyledon divided into 2-4 parts. Is passed through the dielectric heating unit (30) to quantitatively pass through the friction heat between the molecules by the molecular culture of the microwave instantaneously divided into 2-4 cotyledons without heat denaturation, the moisture content of less than 5% and the molecule by the molecular culture of microwave By inactivating oxidase lipoxygenase, it is possible to dry below 5% water content. Dried soy cotyledon is stored in a dry soybean storage tank (not shown).

[Cooling Process] (105)

Water content of 5% or less 2-4 equal soy cotyledon dried by the above method is cooled by 5 ° C.-10 ° C. using natural drying or a cooler to facilitate secondary grinding.

[Second Pulverization Process] (106)

Water content 5% 2-4 divided into 5-4-10 ℃ soy cotyledons are rotated by 2,500rpm low temperature impact grinder supplied with dehumidified 5 ℃ -10 ℃ air to produce 80-100mesh activated soybean powder. . A variety of such cold shock mills are already commercialized.

[Belt Type Microwave Dielectric Heating Drying Process] (107)

As shown in FIG. 6, the pulverized soy cotyledon is introduced into the cyclone 50, and the activated soybean powder of 80-100 mesh, which is also supplied by the metering feeder 51, is a box-shaped layered frame (B). The soybean powder is dried and flowed upward from the top to the bottom on the drying conveyor 53 having the dielectric heating unit 52 installed in the room, and finally dried soybean powder is fed to the screw conveyor (54).

The drying method described above is a state of 80-100mesh active powder due to the phenomenon of heat friction caused by the molecular dielectric arrangement of the microwave at 60 ° C-80 ° C. do.

Therefore, by reducing the drying time, the particle size 80-100mesh active soybean powder is dried within 2% of moisture content without thermal denaturation and physical property change, and instantly generates heat friction by molecular culture of lipase, an oxidase. It is a process to inactivate Knys and antitrypsin inhibitors and transfer them to the lower screw conveyor.

[Third Grinding Process] (108)

Activated soybean powder with a particle size of 80-100mesh and 2% moisture content is transferred and dehumidified at 5 ℃ -10 ℃ and maintained at a rotation speed of 2,500rpm 3 crusher to grind to 100-900mesh particle size.

[Particle Centrifugation Process] (109)

The required particle size is separated by adjusting the speed of 100-900mesh cell-activated raw soybean fine powder particle size separator, and the unnecessary particle size is again transferred to the secondary low temperature impact grinder and regrind.

In the preferred method for producing raw soybean powder of the microwave dielectric heating drying method of the present invention, the specification of the cell-active raw soybean fine powder in which the functionalities of the ground soybeans are alive is 100-900mesh and the components are;

Water content: 2%-2. Protein: 40%-3. Lipid: 18%-4. Carbohydrate: 20%-5. NSI Index: 28%-6. Antibiotics (phenolic acid; PHENOLICACIDS , Isoflavone; ISOFLAVONES, phytate; PHYTATE, lignan; LIGNANS, saponin; SAPONINS, cellulose; CELLULOSE, peptide; PEPTIDE, lecithin; LECITHIN).

The micropowder of the raw soybean by the method of manufacturing the soybean powder of the microwave dielectric heating drying method of the present invention having the above-described structure has no fishy smell, has a high digestion absorption rate of 96%, and prevents chronic diseases (anticancer, diuretic action, constipation prevention, Diabetes prevention, arteriosclerosis prevention, osteoporosis prevention, liver function improvement, heart disease prevention, dressing effect) It is an excellent health food because it is very suitable for the recovery of patients, the diet of women, the growth of children, and the health of the elderly. High shelf life (1 year storage at room temperature at EVOH film packaging) enables mass production and distribution, enabling commercialization in large quantities.

In addition, bioactive soybean fine powder with high physiologically active substances and high functionality has a wide surface area and good emulsification, and is excellent as a high-tech bio-new material such as high-functional unused whole tofu, dietary fiber soy milk, enzymatically digested soy sauce, amino acid drink, and soybean vinegar. It can produce soybean processed products and supply high quality foods to the public.

In addition, due to the production of high-functional unused frontal tofu, it is expected to greatly contribute to the improvement of national health as a national health food, such as resource conservation, environmental pollution prevention, productivity improvement, rural income increase, etc.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram of an arrangement of equipment showing one step in a method for manufacturing raw soybean powder of a known prior art.

2 is an explanatory diagram illustrating wavelength characteristics of microwaves suitable for the configuration of a method for producing raw soybean powder of the microwave dielectric heating drying method of the present invention.

3 is a flowchart illustrating a process of a method of manufacturing raw soybean powder of the microwave dielectric heating drying method of the present invention.

Fig. 4 is a process unit diagram showing an ozone drying unit of the method for producing raw soybean powder of the microwave dielectric heating drying method of the present invention.

Fig. 5 is a process partial diagram showing equipment of a crude powder drying step of the method for producing raw soybean powder of the microwave dielectric heating drying method of the present invention.

Figure 6 is a process part of the fine powder dielectric heating apparatus of the manufacturing method of raw soybean powder of the microwave dielectric heating drying method of the present invention.

* Explanation of symbols used in the main part of the drawing *

10: Grain Storage Tank

11: ozone generator

12: blower

13: hot air generator

14: ozone hot air duct

15: Bucket Elevator

30: dielectric heating unit

Claims (5)

In the method of manufacturing raw soybean powder, comprising the steps of drying raw soybeans-a process of separating the skin and cotyledons of the shell- cotyledon-drying-grinding-crude powder-drying process-fine powder-processing-fine powder drying ; In the cotyledon drying process, 18-20% water content of soybeans selected by the magnetic line selection process is soaked at a water content of 8-10% by sterilization of heated ozone (O ₃ ) gas at 60 ° C-80 ° C in an ozone hot air circulation dryer. Ozone (O ₃ ) hot air drying process, The coarse powder drying process is a friction heat generation phenomenon by the micromolecular culture generated in the microwave generator at 60 ° C.-80 ° C. through a dielectric heating unit which is a microwave dielectric heating dryer. % Drying and inactivation of the oxidase lipoxygenase, In the fine powder drying process, the active soy powder is passed through a belt-type microwave dielectric heating dryer to dry the powder activated by friction heat generation by molecular culture of microwaves to a moisture content of less than or equal to 2% due to simultaneous heat generation from the outside and the inside. A method for producing raw soybean powder of a microwave dielectric heating drying method, characterized in that it is a belt type micro dielectric heating drying process. The method of claim 1, wherein the dielectric heating unit is at least one drying device disposed on the conveyor flow path, and varies depending on the size and processing capacity of the equipment, the magnetron 32 and the waveguide in the shield casing 31 Method for producing a raw soybean powder of the microwave dielectric heating drying method characterized in that the heating and drying the cotyledon and powder of raw soybeans flowing on the conveyor. According to claim 1, the final soybean powder produced by the process is 100-900mesh and the component content: 2%-2. Protein: 40%-3. Lipid: 18%-4. Carbohydrates: 20%-5. NSI Index: 28%-6. Inclusion Physiologically Active Substances (phenolic acid; PHENOLICACIDS, isoflavone; ISOFLAVONES, phytate; PHYTATE, lignan; LIGNANS, saponin; SAPONINS, cellulose; CELLULOSE, peptide (PEPTIDE, lecithin; LECITHIN) is a method for producing raw soybean powder of a microwave dielectric heating drying method, characterized in that the holding and containing. 2. The method of manufacturing raw soybean powder of the microwave dielectric heating drying method according to claim 1, wherein the flow path of the coarse powder in the coarse powder process and the excretion path of the dielectric heating unit are flow paths composed of Z conveyors. The method of manufacturing raw soybean powder of the microwave dielectric heating method according to claim 1, wherein the flow path of the fine powder process and the excretion path of the dielectric heating unit are a flow path consisting of a belt type horizontal conveyor.