JPH0646921B2 - Tofu manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an apparatus for producing tofu.

[Prior Art] The conventional method for producing tofu is to soak soybeans in water sufficiently, grind them, boil a liquid to which water has been added (this is called Kure liquid), strain with a cloth to make soymilk, and It is made by solidifying soymilk with Nigari (main component is magnesium chloride), which is a coagulant, and is manufactured by craftsmen until recently.
He left a strong industrial personality.

This is because the reactivity of magnesium chloride is too high, and it requires skill in the production of tofu, and thus it has been considered unsuitable for mass production.

However, primary magnesium chloride has become difficult to obtain, and the reactivity of magnesium chloride is too high, so calcium sulfate and glucono delta lactone have begun to be used as coagulants for decades. The tofu, which is completely different from the traditional method, is sold in large quantities in the market.

The tofu currently distributed in large quantities in the market can be roughly divided into three types: cotton tofu, silk tofu, and filled tofu. The three types of conventional manufacturing will be described below.

a. Cotton soybean curd Soybeans are thoroughly soaked in water, ground, and boiled in a solution containing 9 times the amount of water (referred to as Kure liquid) and strained with a cloth (referred to as soymilk). A little defoamer was added to soy milk, heated to 100 ° C, held for 3 minutes, filtered, and when the temperature reached 75 ° C, a coagulant (calcium sulfate was about 2% of beans) was added to hot water (or Add bittern (about 2% of beans) and leave for 10 minutes. Place a colander on top and collect the clear water (waste liquid) inside. The emulsion is transferred to a cloth box (a box with many small holes is covered with cloth), and a plate having a thickness of 5 g per cm ² is placed on the cloth box and squeezed for 20 minutes. Cut this properly,
Soak in fresh water and save.

b. Silken tofu Make soybean soup from dark soybeans (4 times by weight). Boil and strain with a cloth. Add a little defoamer to soymilk 1
Heat to 00 ° C, hold for 3 minutes, then filter, temperature is 70 ° C
Then, a coagulant (calcium sulfate is about 0.6% of beans) is added, and the whole is agglomerated by keeping it at 70 ° C. for 1 hour in a box without holes. It is cut into pieces and soaked in clear water for storage.

c. Filled tofu Make soybean soup from dark soybeans (4 times by weight). Boil and strain with a cloth. Add a little defoamer to soymilk 1
Heat to 00 ° C., hold for 3 minutes, then cool to about 18 ° C. in a cooler. Add a coagulant (glucono delta lactone), fill a single container, seal and heat to 90 ° C (solidify at this time). Cool in a container and store.

In recent years, the demand for natural food has increased, and inexpensive tofu filling is now available in mass production. However, demand for tofu using traditional bittern without artificial additives has grown rapidly.

[Problems to be Solved by the Invention] However, with tofu using bittern, bittern has high reactivity as described above, and the step of coagulating requires skill. As a result, small-scale, expensive tofu could only be supplied locally because it was produced by hand instead of being machine-made.

In addition, because of the high reactivity of bittern, silken tofu was produced only with calcium sulfate and glucono delta lactone as a coagulant.

Therefore, an object of the present invention is to provide an apparatus for producing tofu using bittern in order to obtain inexpensive tofu.

[Means for Solving the Problem] In the apparatus for producing cotton-bean curd tofu according to the invention of claim 1, a stirring means for stirring the soymilk in the coagulation tank and a liquid bittern added to the stirred soymilk are added. A device for producing tofu, which comprises a flow stopping means for stopping a stirring flow and coagulates a protein component in soymilk, in which an elevating platform provided above the coagulation bath and an elevating platform provided in the coagulation bath direction from the elevating platform. A screw as the stirring means connected to the extended rotating shaft, a stop plate as the flow stop means connected to the rotating shaft extended in the coagulation tank direction from the elevating table, and the bite When adding to soy milk in the coagulation tank, the elevating operation means for lowering the elevating table to immerse the screw and the stop plate in the coagulation tank, and the stopper when rotating and stirring the screw. Against the flow And a stop plate rotating operation means for rotating the stop plate in a direction orthogonal to the stirring flow to stop the stirring flow when the screw is stopped at the same time as adding the predetermined amount of bittern. Be prepared.

Further, in the apparatus for producing silken tofu according to the second aspect of the present invention, a stirring means for stirring the soy milk in the coagulation tank into which the granular bittern is added by moving the stirring plate up and down is provided, and the protein component in the soy milk is coagulated. In the tofu manufacturing apparatus, the coagulation tank is a container having a rectangular cross section that also serves as a molding die, and the particle size of the granular bittern is 3.5 to 1 mm, above the container along the longitudinal direction. Bitten biting plate that puts a granular bittern provided in an invertible manner in a substantially central row in the longitudinal direction of the container, and a number of holes provided in the stirring plate having a shape slightly smaller than the internal shape of the container. When the bite is thrown by the drilling hole, the throwing plate reversing means for reversing and throwing granular bitterns uniformly arranged on the throwing plate to solidify the mold in the container. At the same time, move the stirring plate up and down 1 It is obtained by a stirrer plate driving means for shifting twice.

[Operation] In the apparatus for producing a tofu (cotton tofu) according to the first aspect of the invention, an elevating platform provided above the coagulation tank and extending from the elevating platform in the coagulation tank direction. A screw as the stirring means connected to a rotating shaft, and a stop plate as the flow stopping means connected to the rotating shaft extended from the elevating table in the coagulation tank direction,
When the liquid bittern is added to the soymilk in the coagulation tank, the elevating operation means lowers the elevating table to immerse the screw and the stop plate in the coagulation tank. Further, by the stop plate rotating operation means, the screw is rotated and stirred in a direction that does not counteract the flow, the predetermined amount of the bittern is added, and at the same time, the screw is stopped and the stop plate is stirred and flowed. Since the stirring flow is stopped by rotating it in a direction orthogonal to, the predetermined bittern is added to the soy milk that has been vigorously stirred by the screw at once, and the flow is immediately stopped, so the bittern is mixed evenly. By putting it in a separate molding machine and performing compression molding, uniform cotton tofu can be made.

That is, in this device, the screw for stirring and the stop plate for stopping the stirring flow are separately mounted on the same lifting table, so the operation of the stirrer and the stop plate is simple, and maintenance etc. are easy. Becomes In addition, the coagulation reaction can be continuously performed by sequentially replacing the coagulation tank.

In addition, in the present apparatus, a predetermined amount of liquid bittern is charged and uniformly mixed, so that no skill is required, and therefore even a beginner can manufacture.

Further, in the apparatus for producing silken tofu according to the invention of claim 2, the coagulation tank is a container having a rectangular cross section also serving as a molding die, and the particle size of the granular bittern is 3.5 to 1 mm, A bittern feeding plate that puts a granular bittern provided in the upper part of the container along the longitudinal direction so as to be reversible, and the stirring having a shape slightly smaller than the internal shape of the container. A plurality of holes formed in the plate, and at the same time that the granular bitterns evenly arranged on the charging plate are reversed and charged by the charging plate reversing means, the stirring plate driving means causes the stirring plate to move. Since it is for moving the mold up and down once or twice to solidify the mold in the container, bittern in a granular state is used, and it is evenly arranged on the bittern input plate and added at one time, and the particle size is 3 The bittern in a granular state of 0.5 to 1 mm melts Before stirring, gently stir the stir plate and let it stand for uniform silken tofu.

Further, in this apparatus, it is not necessary to have any skill to throw in a predetermined bittern amount, and therefore even a beginner can manufacture the apparatus.

[Example] The production of tofu will be described below.

A. 1. Manufacture of cotton-bean curd tofu FIG. 1 is a process diagram showing a manufacturing process of cotton-curd tofu. FIG. 2 is a front view A and a side view B showing the configuration of an embodiment of the tofu producing apparatus of the present invention.

In the figure, 11 is a coagulation container containing soy milk, 12 is a stirrer having a screw at its tip, 13 is a motor for rotating the stirrer 12, 14 is a stop plate for stopping the flow of the soy milk stirred by the stirrer 12, 16 is A turning device that turns the stop plate 14 with respect to the support rod 15 is a drive box that includes a motor 13 and a turning device 16 and that moves up and down along the support rod 18.

The soybean milk used was soybean milk 1 with 9 times the weight of soybeans added.
0 was used, and if the temperature was soy milk, the temperature was raised and the soy milk was put in the coagulation container 11. When the temperature of the soymilk reached 72 to 76 ° C, the drive box 17 was lowered to a predetermined position and the stirrer 12 and the stop plate 14 were dipped in the soymilk. The soy milk was stirred vigorously by the stirrer 12 so that a vortex was formed. At this time, the stop plate 14 is rotated in a direction that does not hinder the flow of soy milk. After vigorous stirring, bittern solution (soft web or crystallin;
150 ml (manufactured by Akosha Co., Ltd.) was added at one time (this is called hitting the bite), and at the same time, the stirrer 12 was stopped, and the stop plate 14 was rotated so as to be perpendicular to the flow to rapidly stop the flow. Within 2 to 3 seconds after hitting the bittern, a white rag-like lump formed by the protein of soybean milk 11 separating from water was formed (this is called porridge tofu). In this state, it was left standing for about 20 minutes to completely produce tofu.

The drive box 17 was raised, the coagulation container 11 was taken out, the produced tofu was put in a predetermined molding machine, and a plate having a pressure of about 5 g per 1 cm ² was placed thereon, and compression molding was performed for 20 minutes.

This was cut into a predetermined size, immersed in clear water for about 3 hours, cooled to 17 ° C. or lower, and then kept at 5 ° C. or lower in a refrigerator to be aged overnight (about 7 hours). By this aging,
The solidification of the tofu was promoted, and the cotton-like tofu that was hard to lose its shape was made.

Further, in this cotton tofu producing apparatus, it is not necessary to have any skill to add a predetermined amount of bittern and mix them uniformly, and therefore even a completely beginner can produce.

B. Manufacturing of Silken Tofu FIG. 3 is a process diagram showing a manufacturing process of silken tofu.
FIG. 4 is a perspective view showing a configuration of an apparatus for producing silken tofu.

In the figure, 21 is soybean milk, 22 is a rectangular solidification container that also serves as a molding container containing soymilk 21, 23 is slightly smaller than the inner diameter of the solidification container 22, and three holes 24 in each of two rows 24
The reference numeral 25 designates a biting plate which is open, and 25 is a biting input plate which is arranged substantially in the longitudinal center line of the coagulation container 22, on which a predetermined amount of biting bits 26 are placed at equal intervals. 27 is a driving plate 23
It is a drive box that is equipped with a drive unit for vertically driving.

As the soybean milk to be used, soybean milk 15 containing water in an amount of 4 times the weight of soybean was used. If the soybean milk had a lowered temperature, the temperature was raised and the soybean milk was put in the coagulation container 22. The temperature of soy milk 21 is 70-73
When the temperature reaches ℃, 35 g of bittern 26 (soft weber; manufactured by Akosha Co., Ltd.) in a granular state crushed to a particle size of 3.5 to 1 mm
Are evenly arranged on the biting input plate 25, and
It was added all at once to approximately the center of the hole 24 in the row, and immediately after that, it was gently driven by the driving plate 23 up and down for 1 to 2 reciprocations and stirred, and then allowed to stand for 10 to 15 minutes to solidify.

After coagulation, it was cut into a predetermined size, immersed in clear water for 4 to 6 hours, cooled to 17 ° C or lower, and then kept at 5 ° C or lower in a refrigerator to be aged overnight (about 7 hours).

By this aging, the solidification of the tofu was promoted, and the silky tofu that was hard to lose its shape was produced.

Further, in the apparatus for producing this silken tofu, it is not necessary to have any skill to add a predetermined amount of bittern, and therefore even a completely beginner can produce it.

[Effects of the Invention] As described above, the present invention is provided as an ascending / descending stage provided above a coagulation tank and the stirring means connected to a rotary shaft extending from the elevating table toward the coagulation tank. And a stop plate as the flow stop means connected to a rotating shaft extended from the elevating table in the coagulation tank direction, when adding the liquid bittern to soymilk in the coagulation tank. Then, the elevating table is lowered by the elevating operation means, and the screw and the stop plate are immersed in the coagulation tank. Further, by the stop plate rotating operation means, the screw is rotated and stirred in a direction that does not counteract the flow, the predetermined amount of the bittern is added, and at the same time, the screw is stopped and the stop plate is stirred and flowed. Since it is to rotate the stirring flow by rotating in a direction orthogonal to, a predetermined bittern is added to the soy milk that has been vigorously stirred by the screw at once, and the flow is immediately stopped, so the bittern is uniformly mixed,
By putting this in a separate molding machine and performing compression molding, even beginners can make uniform cotton tofu.

Further, the coagulation tank is a container having a rectangular cross section which also serves as a molding die, and the particle size of the granular bittern is 3.5 to 1 mm,
A bittern feeding plate that puts a granular bittern provided in the upper part of the container along the longitudinal direction so as to be reversible, and the stirring having a shape slightly smaller than the internal shape of the container. A plurality of holes formed in the plate, and at the same time that the granular bitterns evenly arranged on the charging plate are reversed and charged by the charging plate reversing means, the stirring plate driving means causes the stirring plate to move. Since it is for moving the mold up and down once or twice to solidify the mold in the container, bittern in a granular state is used, and it is evenly arranged on the bittern input plate and added at one time, and the particle size is 3 Even if you are a beginner, you can make uniform silken tofu by gently stirring the stir plate and letting it stand before the bittern in the granular state of 0.5 to 1 mm is eluted.

[Brief description of drawings]

FIG. 1 is a process diagram showing a manufacturing process of cotton-like tofu. FIG. 2 is a front view A and a side view B showing the configuration of an embodiment of the tofu producing apparatus of the present invention. FIG. 3 is a process diagram showing a process for producing silken tofu. FIG. 4 is a perspective view showing a configuration of an apparatus for producing silken tofu. In the figure, 11 is a solidification container, 12 is a stirrer, 13 is a motor, 14 is a stop plate, 15 is a support rod, 16 is a rotating device, 1
7 is a drive box, 21 is soy milk, 22 is a coagulation container, 23 is a driving plate, 25 is a biting input plate, 26 is biting, and 27 is a driving box.

Claims (2)

[Claims] 1. A protein component in soy milk, comprising: a stirring means for stirring soy milk in a coagulation tank; and a flow stop means for stopping a stirring flow when liquid bittern (magnesium chloride) is added to the stirred soy milk. In a tofu manufacturing apparatus for solidifying, a lifting platform provided above the coagulation tank and capable of moving up and down, and a screw as the stirring means connected to a rotary shaft extended from the lifting platform in the coagulation tank direction. A stop plate as the flow stop means connected to a rotating shaft extending from the elevating table toward the coagulation tank, and the elevating table is lowered when the bittern is added to soymilk in the coagulation tank. By raising and lowering operation means for immersing the screw and the stop plate in the coagulation tank, the stop plate is oriented so as not to oppose the flow when the screw is rotated and stirred, and a predetermined amount of the Bittern Tofu manufacturing apparatus, characterized in that the stop plate and a locking plate rotating operation means for rotating in the direction perpendicular to the stirring flow in order to stop the agitation flow when stopped added to the same time the screw. 2. An apparatus for producing tofu for coagulating protein components in soy milk, comprising a stirring means for stirring soy milk in a coagulation tank charged with granular bittern (magnesium chloride) by moving the stirring plate up and down. The coagulation tank is a container having a rectangular cross-section that also serves as a molding die, the particle size of the granular bittern is 3.5 to 1 mm, and the container is provided above the container so as to be reversible along the longitudinal direction. A bittern feeding plate that puts a granular bittern into a substantially central row in the longitudinal direction of the container, and some holes formed in the stirring plate having a shape slightly smaller than the inner shape of the container, In order to solidify the mold in the container, a charging plate inverting means for inverting and charging granular bitterns uniformly arranged on the charging plate, and the stirring plate is moved up and down at the same time when the biting is charged by the inverting means. 1 or 2 times Tofu manufacturing apparatus characterized by comprising a stirring plate driving means.