KR20050034176A - Process for the preparation of whole soybean milk and curd comprising ultra high-pressure micronization of soybean - Google Patents

Abstract

The present invention relates to a method for manufacturing whole-component soy milk and tofu, and a manufacturing apparatus thereof, comprising the steps of crushing soybean and ultra-high pressure refining the crushed soybean. The ultra-high pressure micronization process and manufacturing apparatus can obtain fine particles by only one treatment by ultra high-pressure miniaturization of more than 1,500 bar (bar), so that the production efficiency is improved, it is suitable for the production of high-quality soy milk and tofu with high economical efficiency.

Description

Soy milk and tofu manufacturing method through ultra-high-pressure micronization of soybeans {PROCESS FOR THE PREPARATION OF WHOLE SOYBEAN MILK AND CURD COMPRISING ULTRA HIGH-PRESSURE MICRONIZATION OF SOYBEAN}

The present invention includes a method for producing economical whole soybean milk and tofu, comprising the step of grinding soybean and adding ultra-high pressure of 1,500 bar or more to the ground soybean, thereby minimizing soybean solids. And a manufacturing apparatus for implementing the same.

As a method of making soy milk, it is common to heat and grind the boiled soybeans or soybeans or soy flour called water and compress and compress them. In the conventional manufacturing method of soy milk and tofu, about one-third of the weight of soybeans is discarded as a by-product, which is a large amount of nutrients such as fiber, lipids, and minerals that can be ingested from soybeans. Soy foods consisting almost exclusively of protein have been produced.

In order to overcome the problem of loss of nutrients, a method of disintegrating the sebum by using an enzyme (Korean Patent Publication No. 2001-41120), a method of performing ultrasound and heat treatment in parallel (Korean Registered Patent No. 41494, Korean Registered Patent No. 59907), and a method for reducing the production of biji through high temperature and high pressure treatment (Korean Patent No. 86038) and the like have been proposed. However, most of these methods have a drawback in that the size of the final soymilk particles is large, so that the soymilk is roughly produced or the soymilk particles are deposited, and it is difficult to industrialize because it does not overcome the unpleasant taste or aroma caused by the reprocessing of biji. In particular, the method using enzymatic digestion did not overcome the disadvantage of being uneconomical because expensive enzymes were introduced compared to the economics of soybean foods that are supplied at low prices as mass foods.

On the other hand, there have been reported methods of manufacturing whole ingredient soymilk using processed soybean powder (Korean Patent Registration No. 182829), but some nutritional components of soybeans are lost in the pre-treatment process for treating soybean powder. It is an inadequate technology in that it is inevitable to use the nutritional ingredients of soybeans.

Accordingly, the present inventors continue to research to solve the above problems and to develop an economical and efficient soy milk and tofu manufacturing process without the occurrence of busy, but without the external processing such as enzyme treatment, acid treatment, dispersion in excess water. As a result, the ground-breaking soybean was treated only once at an ultra high pressure of 1,500 bar or more, and thus a revolutionary method and a manufacturing apparatus for lowering the particles of the whole soymilk to 35 microns or less were devised.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing whole component soymilk by miniaturizing pulverized soybean particles to ultra-high pressure without a separate discharge process of the soybeans from the whole soybean, and a manufacturing apparatus thereof.

In accordance with the above object, the present invention comprises a whole-grain soy milk and whole-tofu tofu without sedimentation and discharge process of soybean including the step of grinding the soybean and adding ultra-high pressure of 1,500 bar or more to the ground soybean It provides a method of manufacturing, and a manufacturing apparatus for implementing the same.

Hereinafter, the manufacturing method of the whole ingredient soy milk and tofu of the present invention will be described in more detail with respect to the manufacturing apparatus of the present invention shown in FIG.

Throughout this specification, "whole ingredient soy milk" and "whole ingredient tofu" are intended to contain the whole nutritional components of soybeans without removing useful ingredients that have been discarded from conventional soybean milk or bean curd, such as bean curd from conventional soybean milk or peeled soybeans. It means soymilk prepared and tofu prepared therefrom.

In the present invention, the soaked soybeans are heated to an appropriate temperature and time, subjected to a grinding process using a mechanical grinding device such as a chopper mill, and then finely grained by an ultra-high pressure refinement process to which at least 1,500 bars are added. The present invention relates to a whole ingredient soymilk and tofu with good viscosity and texture. The present invention can be specifically carried out according to the following steps.

1) Selection and dipping process

After screening and washing whole soybeans or peeled soybeans, in order to increase the extraction rate of soy protein, the hot soybeans or peeled soybeans are hot-dried at high temperature, or they are ground without grinding and then peeled off, followed by 2-3 times the normal temperature water or After immersion for 2 to 10 minutes in hot water at 60 to 90 ℃ depending on the temperature, the immersion liquid is discharged.

Referring to the manufacturing apparatus of Figure 2, after immersed for a predetermined time while controlling the temperature within the temperature range after the purified water 11 and soybean 12 is put into the immersion tank (A), foreign matter after immersion The remaining purified water included is discharged through the outlet (13). The soaked soybean is introduced into the stirring tank B by the transfer line 14 to undergo a fine grinding process.

2) fine grinding process

It is a process to soften soybean which has been immersed by heat and mechanically crush it.The soymilk solids of the grinding liquid are added to the soaked milk so that the soymilk solid content is 10 ± 3%, while hot water of 20 ° C to 90 ° C is applied to the soaked soybean milk. Grinding using a mechanical grinding device. In the case of using a purified water of low temperature (eg 60 ° C. or lower) in the grinding step, the grinding liquid is heat treated to 90 ± 10 ° C. to be softened. By softening the soybean particles by heat before or after grinding, the efficiency of the grinding or subsequent micronization process can be increased.In the case of non-softening, the grinding liquid is maintained at 95 ± 5 ° C for 3 to 7 minutes to inactivate the enzyme. The malodor of soymilk caused by lipoxidase can be removed and the busy particles can be more softened.

As shown in FIG. 2 showing the manufacturing apparatus of the present invention, the stirrer 22 and the grinding mill 23 are continuously installed in the lower part of the stirring tank B in which the pulverization process is performed, so that mixing and Grinding takes place efficiently.

The soymilk grinding liquid obtained through this pulverization process has an average particle diameter of about 150-250 micrometers.

3) Manufacturing process of whole ingredient soymilk by ultra high pressure micronization

The soymilk grinding liquid, which has been ground by step 2), is continuously introduced into the ultra-high pressure micronizer (C) through the forced inlet 33 provided on the upper side of the ultra-high pressure micronizer (C), and the sterilizer / cooler is 80 ° C. or lower. , So that the soymilk particles are refined by ultra-high pressure refining by adding a pressure of 1,500 bar or more, preferably 2,000 bar to 3,000 bar while maintaining or adjusting the temperature at 20 to 75 ° C., and having an average particle diameter of 15 to 30 μm. Get the ingredient soy milk. Thus, the whole ingredient soymilk prepared by miniaturizing particles has the advantage of not having a rough feeling in the mouth, excellent taste and flavor when drinking, and coagulation or aggregation does not occur even during long-term storage. At this time, when the refining pressure is less than 1,500 bar, the desired level of refining effect cannot be obtained, and the soymilk particles are large, which gives the produced soymilk a coarse feeling or precipitation.

In the ultra-high pressure miniaturization process, the ultra-high pressure may be introduced in one or two directions by the ultra-high pressure inserters 31 and 32 provided on one side or both sides of the ultra-high pressure micronizer C, but preferably the ultra-high pressure is introduced in both directions on both sides. It is possible to improve the desired miniaturization efficiency. At this time, by additionally generating a back pressure of about 15 bar, finer particle size can be obtained.

The refined soymilk is discharged through the outlet 34 and transferred to the storage tank 40 containing the cooler, and is preferably stored at 2 to 7 ° C until the production of the whole ingredient soymilk and tofu.

4) Manufacturing process of all ingredients soy milk and tofu products

Using all the soy milk containing all the nutritional ingredients of soybean prepared as described above, various whole soy milk and tofu products can be prepared by the following method.

4-1) Whole Ingredient Soymilk Products

In order to enable the circulation of the refined whole soymilk in liquid phase at room temperature, a small amount of food-acceptable additives are mixed, blended and stabilized homogeneously in the whole soymilk, and then filled into a container and sterilized. Cooling and packaging result in a whole component soymilk product having an average particle diameter of 10-30 μm and a viscosity of 20-100 cps.

In addition, it is possible to enhance the flavor or taste of the final soymilk product by adding a flavor component to all the soymilk in the production of the soymilk product, and the usable flavor ingredients include fruit, fruit puree, juice, concentrate, powder and mixtures thereof. It can be illustrated.

In addition, for the purpose of health, the whole ingredient soy milk milk or calcium or various natural foods, for example, sesame seeds, black sesame, carrots, spinach, green tea, black tea, mulberry leaves, 칡, herbs, ginseng, red ginseng, bellflower Alternatively, an appropriate amount of powder or the like may be added to prepare a whole component soymilk product.

4-2) Whole Ingredient Tofu Products

By using the whole-component soy milk prepared above, various tofu products, such as tofu, soft tofu, and soft tofu, can be prepared according to a conventional method as follows. In this case, tofu products may be prepared after adding suitable flavor ingredients or health promoting ingredients to the whole soymilk, similarly to the manufacturing of the soymilk product as desired.

4-2-1) head and neck

After maintaining the micronized whole soymilk solution at 80 ± 5 ℃ through sterilization / cooler, the head and head by adding coagulant, stirring, coagulation, crushing, pressing, molding, packaging and sterilization / cooling according to the conventional method for preparing tofu head To prepare.

4-2-2) Soft Tofu or Soft Tofu

After cooling the micronized whole soymilk solution to 15 ± 5 ℃ through a cooler, and then prepared by adding a coagulant, filling the container, heating 80 ℃, coagulation, and sterilization / cooling according to the conventional method for preparing soft tofu or soft tofu to prepare soft tofu or soft tofu do.

On the other hand, this invention provides the manufacturing apparatus of the whole component soymilk which enables the above-mentioned whole method soymilk and the manufacturing method of tofu.

Specifically, the manufacturing apparatus is an immersion tank for mixing and immersing the selected soybean and purified water to maintain a temperature; A stirring tank including a grinding mill for crushing the soaked soybeans and a stirrer to promote circulation; And an ultra-high pressure injector provided at the side and an injector of the ground soy liquor, and an ultra-high pressure micronizer for ultra-high pressure micronization of the ground soy liquor.

Ultra-high pressure micronizer in the manufacturing apparatus of the present invention is characterized in that the ultra-high pressure inlet is provided on one side or both sides, it is more preferable to have an ultra-high pressure inlet on both sides as shown in Figure 2 to increase the efficiency of the miniaturization.

Hereinafter, the present invention will be described in more detail with reference to the following examples. only. The following examples are only for illustrating the present invention, but the scope of the present invention is not limited thereto.

Example 1

After the soybeans were selected, dried, ground and stripped, 10 kg of stripped soybeans were immersed in 20 ° C room temperature for 7 minutes. The immersion liquid is discharged to remove the remaining foreign matter and to absorb a certain amount of moisture to facilitate grinding. Soaked stripped soybeans were transferred to a chopper mill, and 78 kg of hot water at 95 ° C. was added, ground and stirred, and then heated and maintained at 90 ° C. for 5 minutes, and cooled. The ground soybean particles were micronized at various pressures of 1,500 to 3,000 bar using an ultra-high pressure micronizer (DeBEE 2000, BEE International Inc., USA), and the particle size was measured and the results are shown in Table 1 below.

Pressure (bar) Average particle size (㎛) 1,000 35.54 1,500 25.92 2,000 23.52 2,500 21.65 3,000 21.20

As can be seen in Table 1, the average particle diameter of the soymilk particles was significantly reduced at the ultra-high pressure of more than 1,500 bar used in the method of the present invention.

Example 2

After the soybeans were selected, dried, ground and stripped, 100 kg of stripped soybeans were immersed in warm water at 75 ° C. for 5 minutes. The immersion liquid is discharged to remove the remaining foreign matter and to absorb a certain amount of moisture to facilitate grinding. The soaked stripped soybeans were transferred to a chopper mill, 910 kg of 25 ° C. room temperature water was added, ground and stirred, and then heated and maintained at 90 ° C. for 3 minutes in a sterilizer, followed by cooling to 5 ° C. The ground soybean particles were refined by an additional pressure of 1,500 bar, and after the refinement, the whole grain soymilk of the liquid type having an average particle diameter of 24 μm, a viscosity of 33 cps, and a solid content of 8% was obtained.

After adding other sugars, flavors, and other additives to the whole soy milk solution prepared as described above, the resultant was filled in a bottle or can container at 90 ° C. and sterilized for 21 minutes at 121 ° C. to have an average particle diameter of 31 μm and a viscosity of 95 cps. The whole ingredient soymilk product was prepared which can be distributed at room temperature for more than 4 months.

In addition, the whole soy milk solution prepared by the above and ground was transferred directly to the tofu manufacturing line and filled into the coagulation barrel at 80 ℃, milk magnesium, 0.9% was added as a coagulant in an appropriate amount and slowly stirred. After 10 minutes, the solidification state was confirmed, and then crushed, pressed, molded and packaged to prepare a tofu (packaging tofu) having a solid content of 17%.

Example 3

120 kg of soybeans were immersed in hot water at 85 ° C. for 10 minutes, and after the immersion liquid was discharged, the remaining foreign matter was removed and a certain amount of moisture was absorbed to facilitate grinding. Soaked soybeans were transferred to a chopper mill, 786 kg of hot water and 230 g of sodium bicarbonate were added thereto, crushed and stirred, and the temperature was lowered to 60 ° C. in a cooler, followed by refinement by an additional pressure of 2,000 bar. After the refinement, the whole grain soymilk of the liquid type having an average particle diameter of 18 μm, a viscosity of 67 cps, and a solid content of 11% was obtained.

Example 4

After the soybeans were selected, dried, ground and stripped, 100 kg of stripped soybeans were immersed in warm water at 80 ° C. for 5 minutes. After discharging the immersion liquid, the soaked stripped soybeans were transferred to the chopper mill, crushed and stirred by adding 750 kg of hot water at 90 ° C., and then heated and held at 85 ° C. for 7 minutes to remove soybean odor by lipoxidase. . The refined soybean particles were refined by an additional pressure of 2,200 bar to prepare whole soymilk having an average particle diameter of 19 μm, a viscosity of 39 cps, and a solid content of 8.5%.

The whole-component soymilk and tofu manufacturing method of the present invention is excellent in the microstructure of high nutritional soymilk and tissue finely microstructured without the addition of crushing and ultra-high pressure micronization, without the addition of grinding, and excellent in texture and texture. As a method of manufacturing, it is not only very economical but also has an advantage of easy industrialization such as mass production through a serialized process.

Figure 1 shows the manufacturing process of the soybean milk and tofu whole ingredient of the present invention.

Figure 2 shows a preferred soybean milk manufacturing apparatus for implementing the present invention.

<Description of Major Symbols in Drawing>

A: immersion tank B: stirred grinding tank

11: purified water 21: stirring motor

12: soybean 22: stirrer

13: outlet 23: grinding mill

14: Soaked soybean transfer port 24: Grinded soy milk outlet

C: Ultra High Pressure Micronizer

31, 32: Ultra High Pressure Feeder

33: Injector

34: Micronized Soymilk Outlet

40: storage tank

Claims (12)

A method of producing whole-component soy milk without a separate discharge process of busy paper, comprising the steps of crushing soybean and refining the crushed soybean to ultra high pressure of 1,500 bar or more. The method of claim 1, And wherein the added pressure of the ultrahigh pressure refining process is from 2,000 bar to 3,000 bar. The method of claim 1, The soymilk produced is characterized in that it has an average particle diameter of 35 ㎛ or less. The method of claim 1, The soymilk produced is characterized in that it has an average particle diameter of 15 to 30 ㎛. The method of claim 1, The ultrahigh pressure refining process is performed at 80 degrees C or less. The method of claim 1, A method comprising the following steps: (1) soaking soybean in normal temperature water or hot water at 60 to 95 ° C. for 2 to 10 minutes; (2) grinding the soaked soybeans in a chopper mill; And (3) preparing the soymilk with the grinding liquid having an average particle diameter of 15 to 25 μm by ultra-high pressure refining at 80 ° C. or lower so that the added pressure is 1,500 bar or more. The method of claim 1, The apparatus for producing all-component soymilk, wherein a reverse pressure is added during the ultrahigh pressure refining process. A method for producing whole ingredient tofu, comprising adding a coagulant to the whole ingredient soymilk prepared by the method of any one of claims 1 to 7. A method of making a whole-component soymilk product, comprising the step of stabilizing, filling, sterilizing and cooling the soymilk prepared by the method of any one of claims 1 to 7 with a food acceptable additive. A method for producing a whole-component tofu product, comprising the step of coagulating and coagulating a coagulant and a food-acceptable additive in soymilk prepared by the method of any one of claims 1 to 7, and then heating, sterilizing and cooling. An immersion tank for mixing and immersing the selected soybean and purified water to maintain a temperature; A stirring tank including a grinding mill for crushing the soaked soybeans and a stirrer for promoting circulation; And an ultra high pressure inlet machine provided on the side and an injector of the ground soy liquor, and an ultra high pressure micronizer for ultra high pressure of the ground soy liquor. The method of claim 11, Apparatus for producing all-component soy milk, characterized in that the ultra-high pressure inlet is provided on both sides of the ultra-high pressure micronizer.