JP5990865B1 - Dry okara manufacturing method, dried okara - Google Patents

Abstract

The present invention solves the problem that it is difficult to produce dried okara that does not impair the texture when mixed with food. An okara drying process for drying okara to produce dried okara and a dried okara powder producing process for pulverizing the dried okara to produce dry okara powder. The dried okara powder producing step includes a step of colliding particles constituting the dried okara by colliding air with the dried okara and pulverizing the dried okara by the collision of the particles. Moreover, a dry okara powder production | generation process pulverizes dry okara and produces | generates the dry okara powder which consists of a particle | grain of 15-35 microns. [Selection] Figure 1

Description

  The present invention relates to a method for producing dried okara and dried okara, and more particularly to a method for producing dried okara with finely divided particles and dried okara.

  The dietary fiber is set as one of the elements indicating the target value to be taken from the nutritional requirements of the 6th revised Japanese in 2000. Dietary fiber has utility by ingestion, and it is considered desirable to ingest it on a daily basis.

  As mentioned above, it is desirable to take dietary fiber on a daily basis. However, it is often difficult to ingest the necessary amount of dietary fiber on a daily basis. Therefore, various methods and ingredients for efficiently taking dietary fiber are considered.

  One example of a food material that is rich in particularly insoluble dietary fiber is, for example, okara. Okara contains a large amount of insoluble dietary fiber, and dietary fiber can be efficiently ingested by ingesting okara.

  However, because okara contains a large amount of moisture, there is a problem in that it quickly decays in the air and does not last for a long time. Therefore, in order to solve the problem of not having a shelf life, it is considered to dry dried okara to produce dried okara.

  As a technique for manufacturing dried okara, there is, for example, Patent Document 1. Patent Document 1 describes a method for producing dried okara having a storage step of storing okara just after generation and a drying step of drying the stored okara. According to Patent Document 1, the storage process includes an outside air blocking process for blocking outside air. With such a configuration, dried okara can be produced by storing okara without decaying.

  Similarly, for example, there is Patent Document 2 as a technique for manufacturing dried okara. In patent document 2, it arrange | positions at each connection part of a raw okara supply apparatus, a vacuum cooling trough, a cushion tank, a fixed quantity supply apparatus, a supply apparatus, a vacuum cooling tank, a cushion tank, and a fixed quantity supply apparatus. Opening and closing device, drying furnace body that dries with hot air while stirring the okara sent from the quantitative supply device, a heat exchanger that warms the air to be blown into the drying furnace body, and a hot air generator that sends hot air to the heat exchanger And a cyclone stirring and drying device having a cyclone for separating dried okara. According to Patent Document 2, with such a configuration, it is possible to continuously perform processing when manufacturing dried okara.

  Similarly, for example, there is Patent Document 3 as a technique for manufacturing dried okara. Patent Document 3 describes dried okara that is obtained by inoculating and propagating aspergillus gonococci on okara and dispersing water to 10 wt% or less. Specifically, Patent Document 3 describes adjusting PH (potential hydrogen, power of hydrogen) in order to suppress the growth of bacteria such as Bacillus and to propagate Aspergillus gonococci. According to Patent Document 3, by producing dried okara as described above, it is possible to produce dried okara that is excellent in taste and can be effectively used as an additive for various foods.

JP 2002-051721 A JP 2006-121972 A JP-A-5-68503

  As described above, it is considered to produce dried okara using various methods. By drying the okara in this way, it is possible to solve the problem of not keeping the okara for a long time.

  However, when dried okara as described above, there is a problem that when the dried okara is mixed with ingredients, a rough texture from the dried okara may remain. . As described above, it is necessary to dry the okara in order to solve the problem that it does not last for a long time. However, when the dried okara is used as a food, a rough texture remains. That is, there has been a problem that it is difficult to produce dried okara that does not impair the texture when mixed with food.

  Then, the objective of this invention is providing the manufacturing method from the dried okara which solves the problem that it is difficult to manufacture the dried okara which does not impair a food texture when it mixes with a foodstuff.

In order to achieve such an object, a method for producing dried okara which is an embodiment of the present invention,
Okara drying process to dry okara to produce dried okara,
A dried okara powder producing step of pulverizing the dried okara to produce dried okara powder;
Have
The dried okara powder producing step includes the steps of colliding particles constituting the dried okara by colliding air against the dried okara and pulverizing the dried okara by the collision of the particles. Including
The dry okara powder producing step employs a configuration in which the dry okara is pulverized to produce dry okara powder consisting of particles of 15 to 35 microns.

Moreover, in the manufacturing method from the dried okara,
The dried okara powder producing step includes a first pulverizing step of pulverizing the dried okara until an average particle size of 120 to 150 microns, and an average particle size of the dried okara pulverized by the first pulverizing step. And a second pulverizing step of pulverizing until the diameter becomes 15 to 35 microns.

Moreover, in the manufacturing method from the dried okara,
In the first pulverization step, the dried okara is sheared and pulverized with a blade, and the dried okara is pulverized until the average particle size becomes 120 to 150 microns,
In the second pulverizing step, particles constituting the dried okara collide with each other by causing air to collide with the dried okara, and the average particle diameter of the dried okara is 15 by the collision of the particles. It is configured to pulverize to 35 microns.

Moreover, in the manufacturing method from the dried okara,
The dry okara powder produced | generated by the said dry okara powder production | generation process is solidified, and the structure which has the dry okara granule production | generation process which produces | generates dry okara granule is taken.

Moreover, in the manufacturing method from the dried okara,
The dried okara granule producing step adopts a configuration in which the dried okara granule is produced by adding moisture while stirring the dried okara powder.

Moreover, in the manufacturing method from the dried okara,
The dried okara powder producing step employs a configuration in which the dried okara powder is pulverized to produce dried okara powder comprising particles having an average particle size of 30 microns.

In another embodiment of the present invention,
The dried okara has a configuration in which the average particle diameter is composed of particles having a size of 15 to 40 microns.

  The present invention provides a method for producing dried okara that solves the problem that it is difficult to produce dried okara that does not impair the texture when mixed with food by being configured as described above. Is possible.

It is a flowchart which shows an example of the flow of the manufacturing method from the dry okara in 1st Embodiment. It is a flowchart which shows an example of the detailed flow of the grinding | pulverization process in 1st Embodiment. It is a flowchart which shows an example of the flow of the manufacturing method from the dried okara in 2nd Embodiment.

[First Embodiment]
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a flowchart for producing dried okara in the present embodiment. FIG. 2 is a flowchart showing an example of a detailed flow of the pulverization step.

  In the first embodiment of the present invention, a method for producing dried okara will be described. The method for producing dried okara in the present embodiment, as described later, after drying okara, the dried okara has an average particle size of about 15 to 35 microns (desirably an average particle size of about 30 microns). Crush until until dry okara powder. Thus dried okara that does not impair the texture when mixed with the food can be produced by finely pulverizing the particles from the dried okara after drying the okara.

  As shown in FIG. 1, the method for producing dried okara in this embodiment includes a drying step for drying okara (step S001) and a pulverizing step for pulverizing the dried okara (step S002) (dried okara). Powder generation step). Referring to FIG. 1, in the method for producing dried okara in the present embodiment, dried okara is pulverized after drying okara.

  In the drying step of drying the okara from step S001, for example, the fresh okara is dried at a tofu store or the like. That is, in the drying step of step S001, the okara containing about 75 to 80% moisture is dried until the moisture becomes 10% or less (for example, around 8%).

  The drying from the above-mentioned okara is performed using hot air, for example. Specifically, for example, hot air generated by a propane burner or the like (for example, hot air of 100 to 600 ° C. can be dried from the oven) by putting okara into a rotary kiln type dryer and rotating the dryer. Any temperature) is brought into contact with the inside of the dryer. For example, the okara is dried by contacting hot air with okara while rotating the dryer. According to this method, although it depends on the size of the observation machine, about 100 kg of raw okara can be dried in about two and a half hours (about 25 kg of dried okara will be completed). In addition, the dried okara in this state is a certain amount of lump like bread crumbs, for example. That is, in the step of drying okara, a lump of dried okara is produced.

  In the drying step of drying okara, okara may be dried by a method other than the method described above. For example, water may be evaporated in a vacuum after freezing okara using a vacuum freeze-drying apparatus, or a method of propagating predetermined fungi may be used. As described above, in the step of drying the okara, various methods capable of drying the okara without being spoiled can be employed.

  Subsequently, the dried okara produced in the step of drying the okara is pulverized to produce dried okara powder. The pulverizing step of Step S002 includes a step of colliding particles constituting the dried okara by colliding air with the dried okara and pulverizing the dried okara by the collision of the particles. In this step, for example, compressed air of several atmospheric pressures (arbitrary value, for example, 2 to 10 atmospheric pressures) is sprayed on the dried okara in a sealed container (pulverization apparatus). Thereby, the dried okara particles are accelerated and the accelerated particles collide with each other. Then, dried okara is pulverized by collision between particles and grinding. In the pulverization step, the dried okara is pulverized until the average particle size of the dried okara is about 15 to 35 microns.

  Here, the dietary fiber that is the main component of dried okara has a very hard property. Therefore, if air is pulverized from the beginning, it will take a lot of time and cost until the average particle size reaches about 15 to 35 microns. Therefore, in the present embodiment, the first pulverizing step (step S101) for pulverizing the dried okara until the average particle size becomes about 120 to 150 microns, and the dried okara pulverized by the first pulverizing step. The dried okara is pulverized by two pulverization steps, that is, a second pulverization step (step S102) for pulverizing until the average particle size is about 15 to 35 microns (FIG. 2). Specifically, in the first crushing step of Step S101, for example, a stainless steel cutter (blade) is rotated at high speed, and the dried okara is sheared and crushed by the shearing force of the cutter. Thereby, the dried okara is pulverized until the average particle size from the dried okara becomes about 120 to 150 microns. In the first pulverization step of step S101, for example, about 7 kg of dried okara is pulverized to about 120 to 150 microns in about 30 minutes. Subsequently, in the second pulverization step of Step S102, the dried okara is pulverized until the average particle size from the dried okara becomes about 15 to 35 microns by the collision and grinding of the particles due to the collision of the air. By carrying out pulverization in two steps in this way, dry okara powder is produced by pulverizing dried okara to an average particle size of about 15 to 35 microns more easily in a short time and at a low cost. I can do it.

  In addition, the recovery from the dried okara pulverized until the average particle size becomes about 15 to 35 microns is performed by adjusting the flow of air so that the dried okara powder is sufficiently fined and lightened, for example. I can do it. In this way, by adjusting the flow of air and recovering dried okara powder, for example, an easy method for only dried okara powder whose average particle size is reduced to about 15 to 35 microns and soars in the air. Can be recovered.

  Thus, in the drying process of step S002, the dried okara is pulverized until the average particle size from the dried okara is about 15 to 35 microns to produce dried okara powder. As described above, in the present embodiment, the dried okara is pulverized by the two steps of the first pulverization step and the second pulverization step. In the first pulverization step, pulverization is performed using a shearing force, and in the second pulverization step, pulverization is performed using an impact force / friction force.

  In the step of producing dried okara powder, for example, it is desirable to make the dried okara particles fine until the average particle size becomes about 30 microns. By crushing to about 30 microns in this way, for example, it becomes possible to easily dissolve dried okara powder in coffee, tea, soup, miso soup, etc. It is possible to prevent the occurrence of badness. Also, for example, by crushing to about 30 microns as described above, the amount of dry okara powder that can be mixed without deteriorating the texture when producing udon, pasta, hot cakes, etc. is increased. I can do it. As a result, for example, when udon or pasta is ingested, a large amount of dietary fiber can be ingested at a time without causing a bad texture.

  Further, by pulverizing the dried okara until the average particle size becomes about 30 microns, the pulverized dried okara flour can be used as a substitute for the wheat flour. Specifically, for example, it is possible to fry deep-fried food using dried okara powder as fried food. Thus, by pulverizing the average particle size of the dried okara powder to about 30 microns, it becomes possible to use the dried okara powder as a gluten-free food material. Gluten in wheat is known to cause allergies. Therefore, dried okara flour that can be used as a gluten-free food is considered to have a very large effect in allergic response.

  Moreover, dried okara flour has a property that it does not contain much sugar. Therefore, dried okara flour can be used without any problem as a food supplement for dietary fiber, for example, even for people who are sugar limited.

  Thus, the manufacturing method from the dried okara in this embodiment has the process of drying okara and the process of grind | pulverizing the dried okara. In the step of pulverizing okara, for example, particles of dried okara are pulverized to about 15 to 35 microns (preferably 30 microns) by two steps. With such a configuration, dried okara with sufficiently fine particles can be produced. By crushing dried okara in this way, it becomes possible to produce dried okara that does not deteriorate the texture when dissolved in food.

[Second Embodiment]
A second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a flowchart for producing dried okara in the present embodiment.

  In the second embodiment of the present invention, a method for producing dried okara is described as in the first embodiment. In the present embodiment, as will be described later, after the dried okara particles are pulverized to about 15 to 35 microns to produce dried okara powder, granulation processing is performed on the dried okara powder.

  As shown in FIG. 3, the method for producing dried okara in the present embodiment includes a drying step for drying okara (step S001), a pulverizing step for pulverizing dried okara (step S002), and a dried okara. A granulation step (step S203) for solidifying the powder to produce granules. Referring to FIG. 3, in the method for producing dried okara in the present embodiment, the dried okara is pulverized and then granulated. Note that the drying step and the pulverization step are the same steps as those described in the first embodiment. Therefore, detailed description is omitted.

  In the granulation step of step S203, dried okara powder is hardened by a stirring granulation method to generate granules. That is, after supplying dried okara powder to the granulation container, water is added while stirring the dried okara powder with a blade rotating in the granulation container. Thus, dried okara powder is aggregated into particles to produce dried okara granules.

  By carrying out stirring granulation in this way, dried okara granules can be produced by solidifying dried okara powder, which is very fine particles. In addition, when performing a granulation process, when fluidized-bed granulation is performed, there exists a possibility that the moisture of a mist may expand an okara and granulation may not be successful. Therefore, when granulating, it is desirable to perform stirring granulation instead of fluidized bed granulation.

  Thus, the manufacturing method from the dried okara in this embodiment has a drying process, a grinding | pulverization process, and a granulation process. After drying dried okara to 15-35 microns in this way, the dried okara powder is hardened by the granulation process, making it easy to dissolve and not worsening the texture, and convenient to carry. Okara can be realized.

  In addition, it is possible to use granulated dried okara, for example, as a supplement or tablet and use it as a health supplement, or as a food ingredient such as sprinkles or soup. Further, for example, it may be dissolved in drinks other than dishes. Thus, by granulating the dried okara powder, it becomes possible to easily ingest the dried okara powder containing a large amount of dietary fiber for various purposes. Accordingly, for example, even a person who is not familiar with dried okara can easily take dietary fiber using dried okara.

  Although the present invention has been described with reference to the above embodiments, the present invention is not limited to the above-described embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

Claims (4)

Okara drying process to dry okara to produce dried okara,
A dried okara powder producing step of pulverizing the dried okara to produce dried okara powder;
Have
The dried okara powder producing step includes the steps of colliding particles constituting the dried okara by colliding air against the dried okara and pulverizing the dried okara by the collision of the particles. Including
The dry okara powder production step pulverizes the dry okara to produce dry okara powder consisting of particles of 15 to 35 microns ,
Having a dried okara granule producing step for producing dried okara granules by solidifying the dried okara powder produced by the dried okara powder producing step,
In the dry okara granule production step, the dry okara granule is produced by aggregating the dry okara powder into particles by adding water while stirring the dry okara powder. . A method for producing dried okara according to claim 1,
The dried okara powder producing step includes a first pulverizing step of pulverizing the dried okara until an average particle size of 120 to 150 microns, and an average particle size of the dried okara pulverized by the first pulverizing step. A second crushing step of crushing until the diameter is 15 to 35 microns, and a method for producing dried okara. A method for producing dried okara according to claim 2,
In the first pulverization step, the dried okara is sheared and pulverized with a blade, and the dried okara is pulverized until the average particle size becomes 120 to 150 microns,
In the second pulverizing step, particles constituting the dried okara collide with each other by causing air to collide with the dried okara, and the average particle diameter of the dried okara is 15 by the collision of the particles. A method of producing dried okara that is pulverized to ~ 35 microns. A method for producing dried okara according to any one of claims 1 to 3 ,
The dry okara powder producing step is a method for producing dry okara powder comprising pulverizing the dry okara to produce dry okara powder comprising particles having an average particle size of 30 microns.

Images