WO2022050155A9 - 豆腐類の製造方法及び製造装置 - Google Patents
豆腐類の製造方法及び製造装置 Download PDFInfo
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- WO2022050155A9 WO2022050155A9 PCT/JP2021/031255 JP2021031255W WO2022050155A9 WO 2022050155 A9 WO2022050155 A9 WO 2022050155A9 JP 2021031255 W JP2021031255 W JP 2021031255W WO 2022050155 A9 WO2022050155 A9 WO 2022050155A9
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- coagulum
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L11/00—Pulses, i.e. fruits of leguminous plants, for production of food; Products from legumes; Preparation or treatment thereof
- A23L11/40—Pulse curds
- A23L11/45—Soy bean curds, e.g. tofu
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/55—Rehydration or dissolving of foodstuffs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
- B01F35/1452—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/06—Mixing of food ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/007—Heating the liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/08—Details of machines or methods for cleaning containers, e.g. tanks
Definitions
- the present invention relates to a method and apparatus for producing tofu using a coagulating device.
- FIG. 1 Conventionally, as an example of a method of producing tofu by coagulating soymilk to produce tofu, as shown in FIG.
- the coagulant supplied from the coagulant tank 2 is coagulated in the coagulating bucket 11 of the coagulating device 10 to form a soy milk coagulate, which is then sent to the molding device 3 and pressed and molded to obtain tofu. Further, after molding, the product is cut into a predetermined size, stored in a pack, fried in a fryer 4, frozen in a freezer 5, and so on.
- Patent Document 1 as a tofu manufacturing method for mass-producing silken tofu or the like, water is sprayed from a fluid spray nozzle toward storage portions of a plurality of coagulation buckets provided side by side on a conveyor, and water is sprayed from the storage portions. It is known to improve the peelability of tofu. Further, Patent Document 2 describes washing the inside of the coagulation container by spraying hot water into the coagulation container from above the lid and side walls of the coagulation container.
- adhered coagulates grow like stalactites and baumkuchen on the vessel walls and stirring blades. If the coagulation process is performed with such adhering coagulum remaining in the coagulation bucket 11, the agitation state of the soymilk may change, or the coagulation state of the soymilk (the size of the coagulated particles, etc.) may slightly change. As a result, the quality of the product (fried tofu, hard tofu, etc.) may be affected, and in some cases, a clump of adhered coagulum may be mistaken for contamination by foreign matter. For this reason, conventionally, it has been necessary for a person to periodically scrape off the adhering coagulum in the coagulation bucket 11 .
- the present invention has been made in view of the above problems, and its object is to provide a tofu manufacturing method and manufacturing apparatus capable of effectively washing and removing adhered coagulum in a coagulating bucket. It is in.
- a coagulation device equipped with a water sprinkler inside the coagulation bucket
- a step of discharging the coagulum mixed with soymilk and coagulant for example, after discharging the coagulum in this embodiment, or after discharging the coagulum is discharged
- water is sprayed from the water sprinkler to wash away the adhered coagulum adhering (remaining) inside the coagulation bucket, and the dispersion of the adherent coagulum is mixed with the coagulate.
- a method for producing tofu to be used.
- a coagulation device comprising a water sprinkler inside the coagulation bucket; The water sprinkler sprays water to wash away the adhering coagulum, which is a mixture of soymilk and a coagulant adhering to the inside of the coagulating bucket, and mixes the adhering coagulum dispersion liquid with the coagulum to use it. kind of manufacturing equipment.
- the water sprinkler includes equipment for quantitatively watering the adhered coagulum.
- the present invention by sprinkling water from the sprinkler device, it is possible to effectively wash and remove the adhered coagulum inside the coagulation bucket, and suppress the growth of the adherent coagulate inside the coagulation bucket. can.
- the dispersion liquid of the adhered coagulum is mixed with the coagulum and used, the yield, yield and quality of the tofu products can be improved.
- FIG. 1 is a side view schematically showing a coagulating device to which the method for producing tofu of the present invention is applied;
- FIG. (a) is a side view schematically showing a solidification bucket, and
- (b) is a top view schematically showing the solidification bucket of (a) with the lid removed.
- It is a flow chart which shows a solidification process.
- (a) is a diagram for explaining the cleaning process when small coagulates are formed, and
- FIG. 10 is a diagram showing an example of cleaning while the solidified matter is being discharged, according to the first modified example;
- FIG. 10 is a diagram showing another example of washing while the solidified matter is being discharged, according to the second modified example.
- FIG. 10 is a diagram showing still another example of cleaning while the solidified matter is being discharged, according to the third modified example.
- FIG. 10 is a diagram showing an example in which a dispersion of adhered coagulum is mixed with the coagulate according to the fourth modification; (a) is a side view schematically showing a solidification bucket according to a fifth modification, and (b) is a top view schematically showing the solidification bucket of (a) with the lid removed. (a) is a side view schematically showing a solidification bucket according to a sixth modification, and (b) is a top view schematically showing the solidification bucket of (a) with the lid removed. It is a schematic diagram which shows a general tofu manufacturing apparatus.
- a soymilk supply pipe 12 to which soymilk is supplied from a soymilk plant and a coagulant supply pipe 13 to which a coagulant is supplied from a coagulant tank are provided to a plurality of coagulation buckets 11.
- a clotted matter discharge pipe 14 for discharging clotted matter and a washing water supply pipe 16 for supplying washing water from a washing water supply device (not shown) toward the sprinkler device 15 .
- the coagulating device 10a has a plurality of coagulating buckets 11 fixed to a base (not shown) in a vertical posture. They are mixed to form a coagulum S.
- the solidified material S is discharged to the subsequent molding process through a solidified material discharge pipe 14 connected to the bottom of the solidification bucket 11 .
- the coagulation bucket 11 has a shape in which an upper cylindrical portion 11a and a lower hemispherical bottom portion 11b are continuous. can be configured to
- a stirring device 18 for stirring the soymilk and the coagulant and breaking the coagulum S is provided in the coagulation bucket 11 .
- the stirring device 18 has a stirring shaft 18b to which stirring blades 18a are attached.
- the stirring shaft 18b passes through the lid 17 and is driven by a drive motor (not shown) connected above.
- the stirring device 18 may be configured to be drivable also in the vertical direction.
- a sprinkler device 15 connected to a washing water supply pipe 16 is provided in the upper part of the coagulation bucket 11 .
- the water spray device 15 is composed of a ring-shaped water spray pipe arranged along the inner peripheral surface of the upper portion of the cylindrical portion 11a of the coagulation bucket 11, and the wetted liquid inside the coagulation bucket 11 with which the soymilk, the coagulant, and the coagulum S come into contact. It is possible to clean both the part and the droplets adhering to the other non-wetted parts.
- the non-wetted portion is intended to be the upper inner wall of the coagulation bucket 11 and the inner surface of the lid 17, and the wetted portion is the inner wall of the coagulation bucket 11 with which the soymilk, coagulant, and coagulum S come into contact.
- a stirring blade 18a a stirring shaft 18b, a soymilk inlet 12a of the soymilk supply pipe 12, a baffle plate 30 (see FIG. 7), which will be described later, a portion of the coagulum discharge pipe 14, and the like.
- the water sprinkled by the water sprinkler 15 is food manufacturing water, and may be tap water, clear water such as well water, distilled water, sterile water filtered through a membrane, or the like, and is not particularly limited.
- the water to be sprinkled may be 0 to 100°C, preferably 40 to 100°C heated by a washing water supply device, and more preferably 60 to 95°C for bacteriostatic effect and practicality. °C hot water can be used. By using hot water, you can also obtain the effect of sterilizing and suppressing the growth of various bacteria and keeping the bucket warm.
- steam condensed water obtained by recovering the steam filled in the solidification bucket 11 may be used as the water to be sprinkled.
- the fresh water is for washing or co-washing, it can also be used so as to contain quality improving agents (food additives and food materials such as pH adjusters and puffing accelerators).
- the syneresis also called ⁇ Yu'' or ⁇ Shimizu''
- the syneresis separated from the soymilk coagulum can be used as it is, or it can be filtered, sterilized, or otherwise hygienically treated before being used for sprinkling. The effect of not cooling objects, pipes, buckets, and other members can be expected.
- a pump 19 such as a metering pump or a self-priming pump that can transport the solidified material S without breaking it as much as possible is provided, but it may be discharged naturally.
- the pump 19 is not particularly limited as long as it is a self-sufficient pump such as a rotary pump, a mono pump, a vane pump, a Bidel pump, a tubing pump, or a gear pump.
- a discharge valve (not shown) (an automatic opening/closing valve such as a ball valve, a butterfly valve, a gate valve, etc.) is provided in the clot discharge pipe 14 so as to be able to open and close.
- the clot discharge pipe 14 may be inclined downward by 1% or more, preferably by 5% or more, relative to the horizontal.
- the discharge pipe size is 2.0 inches or more, preferably 2.5 to 3 inches.
- a member whose surface is polished or surface-treated is provided in a portion where the coagulate S is likely to adhere.
- the portion where the coagulum tends to adhere includes the inner wall of the coagulation bucket 11, the stirring device 18 including the stirring blade 18a and the stirring shaft 18b, the baffle plate 30 described later, the soymilk inlet 12a, and the like. , the water spray device 15, and the like.
- the shape of the stirring blade 18a is not limited to a general propeller type of 2 to 4 blades, and may be in a form that also has the effect of breaking up the solidified matter. It may be provided as appropriate and is not particularly limited.
- Buff mirror polishing and electrolytic polishing are used as surface polishing, and Teflon (registered trademark) processing, ceramic coating, DLC coating, sandblasting, and water repellent with a fine uneven structure with lotus effect are used as surface treatment.
- Processing water contact angle of 90° or more may be used as necessary.
- the coagulation bucket 11 may be provided with heat retaining means for keeping the container wall warm.
- heat retaining means a jacket tank having an air layer or a vacuum layer, a jacket tank in which hot water of 40 to 100° C. is poured through the jacket, or a heat retaining tank provided with a heat retaining material can be applied.
- the walls of the container do not cool down, the adhesion of the solidified material S can be suppressed, and a homogeneous solidified material S with good water retention can be produced.
- soymilk is supplied from the soymilk plant to the coagulation bucket 11 through the soymilk supply pipe 12 (step S1), and the soymilk is stirred immediately after it is supplied.
- the soy milk is stirred by the device 18 (step S2).
- the coagulant is supplied from the coagulant tank to the coagulant bucket 11 through the coagulant supply pipe 13 (step S3), and the soymilk and the coagulant are mixed while being stirred by the stirring device 18 (step S4).
- a solidified substance S is produced (step S5).
- steam is positively supplied so as to moisten the internal space as necessary.
- the discharge valve is opened, the pump 19 is operated (step S6), and the solidified material S is sent to the subsequent molding device.
- the coagulum S is supplied to the storage tank of the continuous molding machine, or directly supplied to a water extractor that separates the coagulum from the whey without passing through the storage tank.
- the coagulum S is supplied directly to the hopper of a distributor that evenly distributes the coagulum S on the lower cloth, or directly to the lower cloth of the continuous molding machine.
- step S7 After sending the solidified material S to the molding device, the adhering solidified material Sa (see FIG. 4) adhering to the inside of the solidifying bucket 11 is washed by the sprinkler device 15 (step S7).
- the soymilk used in the coagulation device is 1 to 10% wt, preferably 2 to 7% wt.
- a coagulant a single or a mixed aqueous solution or aqueous dispersion of magnesium chloride, bittern, calcium chloride, magnesium sulfate, calcium sulfate, etc.
- yu free water, also called shimizu
- the adhered coagulated material Sa adhering to the side surface of the coagulating bucket 11 when the coagulated material S of the soymilk and the coagulant is conveyed is washed away with water from the water spray nozzle.
- the adhering coagulum Sa can be transported, leading to an improvement in yield.
- the adhered coagulate Sa adhering to the wall of the coagulation bucket 11 can be reduced, suppressing the propagation of various bacteria (hygienic when coagulating every time), and furthermore, the adhered coagulate. It can prevent the growth of things.
- the washed-out adhered coagulate Sa and the coagulate dispersion containing water for sprinkling may be mixed together with the coagulate S, or may be separately discarded. Also, if the water for sprinkling or the coagulum dispersion remains in the coagulation bucket 11, the concentration of the soymilk will be diluted in the next measurement of the soymilk, which will impair the taste of the tofu and lead to a decrease in quality. It is preferable that the water for sprinkling and the coagulum dispersion (washing liquid) are completely discharged from the coagulation bucket 11 before the coagulation.
- the coagulation bucket 11 is provided with the above-described heat insulating means, and is subjected to surface polishing and surface coating treatment to reduce deposits, and it is possible to adjust the amount of water during washing to reduce.
- the solidified material S gradually adheres to the inner wall of the solidified bucket 11, the stirring blade 18a, the later-described baffle plate 30, etc., and further accumulates, so that the stirring effect changes as the production time increases.
- the particle size and particle size distribution of the coagulate S will change and affect the quality of the product.
- the water content of the dough changes and the quality of the fried tofu product changes. can prevent you from doing it.
- the solidified material S gradually hardens over time while remaining attached, sometimes becoming a discolored mass. If these lumps fall and flow to the next process, the cloth containing the lumps will be deformed and not only will it be lost, but also there is a possibility that complaints will be filed due to contamination by foreign matter. By washing with water, it is possible to prevent the adherence of the solidified material S and prevent the formation of clumps, thereby preventing such a problem.
- the inside of the solidified bucket 11 is cleaned after the solidified material S is conveyed to the next step.
- a fixed amount of water is sent from a water tank 20 to a cleaning water supply pipe 16 using a metering pump 21, and the fixed amount of water is sprayed from a sprinkler 15 into the coagulation bucket 11.
- FIG. 6 a pump 22 is arranged in the middle, an automatic valve 24 is provided in the circulating water pipe 23, and a fixed amount of water measured by the opening time of the valve 24 is sent to the washing water supply pipe 16. , the amount of water is sprinkled from the sprinkler 15 into the solidification bucket 11 .
- FIG. 6 In the modification shown in FIG.
- a pump 22 is arranged in the middle, an automatic valve 24 is provided in a circulating water pipe 23, and while the automatic valve 24 is opened and closed, a level sensor such as an electrode sensor or a float sensor is installed.
- a fixed amount of water is metered by the tank 25 , and then the valve 26 is opened to spray the fixed amount of water in the metering tank 25 from the sprinkler 15 into the coagulation bucket 11 .
- water may be sprayed quantitatively from the sprinkler 15 while the solidified material S is being transported to the next step, for example, by measuring a predetermined amount of water with a flowmeter or an integrating flowmeter.
- the amount of water to be sprinkled is preferably 0.1% to 1% with respect to the soymilk in the coagulating bucket 11 .
- the coagulum dispersion liquid passing through the coagulum discharge pipe 14 is discharged together with the previously discharged coagulum S, and is evenly mixed in a storage tank provided downstream of the pump 19 .
- a storage tank provided downstream of the pump 19 .
- the coagulated matter S and coagulated matter dispersion Sa from the plurality of coagulating buckets 11 discharged by the pump 19 are once collected in a coagulated matter collecting tank (storage tank) 40 having a stirring device 41.
- the molding device 3 After that, it may be transferred to the water intake device 43 by the pump 42 and further sent to the molding device 3 via the distributor 44 .
- a certain amount of coagulum S and coagulum dispersion Sa can be transferred to the water intake device 43 rather than directly conveyed from the coagulation bucket 11 to the water intake device 43, and via the distributor 44.
- the molding device 3 can easily produce a product having a uniform thickness.
- the sprinkler device 15 is not limited to the sprinkler pipe type described above, and may be a shower ball type shown in FIG. 9 or a shower nozzle type shown in FIG.
- the water sprinkler 15 may be a spray ball type, a two-dimensional/three-dimensional rotating nozzle type, a pig tail type (nozzle that sprinkles water in a spiral), or any other suitable water nozzle for tank cleaning. Not limited.
- the sprinkler device 15 may be provided with a high-pressure nozzle capable of washing with high-pressure water of 1 to 10 MPa.
- the sprinkler device 15 is provided with a ball-type or rotary spray nozzle, and during CIP cleaning, sprays alkaline or acidic cleaning chemicals inside the bucket 11 from the nozzles, and is also used for chemical circulation cleaning and rinsing. good too.
- water vapor, sodium hypochlorite water, hypochlorous acid water, or the like may also be sprayed from the nozzle for sterilization.
- a baffle plate 30 having a rectangular shape or the like is arranged in the coagulation bucket 11 to change the flow of soymilk.
- the cleaning water from the sprinkler device 15 can wash the adhering coagulum Sa adhering to the baffle plate 30 .
- the stirring blade 18a is arranged at a position eccentric from the center of the cylindrical portion 11a of the solidification bucket 11, and the shower nozzle of the sprinkler device 15 is arranged at the center of the cylindrical portion 11a.
- the inside of the coagulation bucket 11 is filled with the cleaning liquid, making it easier to evenly clean, and the cleaning effect can be improved.
- some of the nozzle holes of the shower nozzle may have directivity so that water can be sprayed toward the stirring shaft 18b, the stirring blade 18a, and the baffle plate 30.
- the present invention is not limited to the above-described embodiments, and can be modified, improved, etc. as appropriate.
- the material, shape, size, numerical value, form, number, location, etc. of each component in the above-described embodiment are arbitrary and not limited as long as the present invention can be achieved.
- the coagulation bucket 11 preferably has a lid 17, but may be configured without a lid as long as the nozzle prevents the cleaning liquid from scattering from the top.
- fried tofu, hard tofu, and frozen tofu dough were exemplified as target products, but as the tofu to be targeted by the present invention, as shown in FIGS. It may be a product formed by breaking a coagulum or a soft pudding-like coagulate and molding it, for example, firm tofu, fried tofu dough, thick fried dough, raw fried dough, frozen tofu dough, ganmodoki (hiryuto) dough, and these It also includes tofu dough for secondary processed foods such as frozen products, and tofu dough made by finely crushing silken tofu and pudding-like solids. In particular, it is more preferable to use deep-fried dough for sushi, thin fried, thick fried and the like as the target product.
- a fixed bucket coagulator in which a plurality of coagulation buckets are fixed to a base has been described, but a round-type bucket coagulator in which a plurality of coagulation buckets revolve around a base may also be used.
- a coagulate discharge pipe may be provided, but a configuration in which the bucket is inverted and discharged is preferable.
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Abstract
Description
凝固剤タンク2から供給された凝固剤とを凝固装置10の凝固バケット11内で凝固させて豆乳凝固物とし、その後、成型装置3に送り、プレス・成型されて豆腐類を得る。また、成型後は、所定の大きさにカットして、パックに収納されるか、フライヤー4でフライされるか、フリーザー5で凍結される等の後工程へ引き継がれる。
(1) 凝固バケットの内部に散水装置を備える凝固装置を使用し、豆乳と凝固剤が混合した凝固物を排出する工程で(例えば、本実施形態における凝固物を排出した後、或いは、凝固物を排出する途中を含む)、前記散水装置から水を散水することで前記凝固バケットの内部に付着(残留)した付着凝固物を洗い流し、該付着凝固物の分散液を前記凝固物に混合して利用する、豆腐類の製造方法。
(2) 前記散水装置は、定量的に散水する、(1)に記載の豆腐類の製造方法。
(3) 前記散水装置は、前記豆乳と前記凝固剤が混合した凝固物を次工程へ搬送中に、
前記水を散水する、(1)又は(2)に記載の豆腐類の製造方法。
(4) 前記散水装置より散水される水は、食品製造用水であって、洗浄水供給装置によって加温された40~100℃のお湯である、(1)~(3)のいずれかに記載の豆腐類の製造方法。
(5) 前記凝固バケットは、保温手段を備える、(1)~(4)のいずれかに記載の豆腐類の製造方法。
(6) 前記凝固バケットの内部は、表面研磨または表面処理加工が施された部材によって構成される、(1)~(5)のいずれかに記載の豆腐類の製造方法。
(7) 前記付着凝固物の分散液は、貯留タンクで前記凝固物に混合されて利用される、(1)~(6)のいずれかに記載の豆腐類の製造方法。
(8) 凝固バケットの内部に散水装置を備える凝固装置を備え、
前記散水装置は、水を散水することで前記凝固バケットの内部に付着した豆乳と凝固剤が混合した付着凝固物を洗い流し、該付着凝固物の分散液を凝固物に混合して利用する、豆腐類の製造装置。
(9) 前記散水装置は、前記付着凝固物に定量的に散水するための設備を備える、(8)に記載の豆腐類の製造装置。
(10) 前記散水装置は、前記豆乳と前記凝固剤が混合した凝固物を次工程へ搬送中に、前記水を散水する、(8)又は(9)に記載の豆腐類の製造装置。
(11) 前記散水装置より散水される水は、食品製造用水であって、洗浄水供給装置によって加温された40~100℃のお湯である、(8)~(10)のいずれかに記載の豆腐類の製造装置。
(12) 前記凝固バケットは、保温手段を備える、(8)~(11)のいずれかに記載の豆腐類の製造装置。
(13) 前記凝固バケットの内部は、表面研磨または表面処理加工が施された部材によって構成される、(8)~(12)のいずれかに記載の豆腐類の製造装置。
(14) 前記凝固バケットに接続された凝固物排出管には、前記付着凝固物の分散液を、前記凝固物に混合させる貯留タンクが設けられる、(8)~(13)のいずれか1項に記載の豆腐類の製造装置。
また、散水する水としては、凝固バケット11内で充満した水蒸気を回収した蒸気凝縮水を利用してもよい。
なお、清水は洗浄用、共洗い用であっても、品質改良剤(pH調整剤、膨化促進剤などの食品用の添加物や食品材料)を含むように使用することもできる。また豆乳凝固物から分離した離水(「ゆ」、「しみず」ともいう)をそのまま、ないしは濾過や除菌・殺菌するなど衛生的に取り扱って、散水に使用することで、節水効果と、豆乳凝固物や配管やバケット等の部材を冷やさない効果が期待できる。
また、散水用水や凝固物分散液が凝固バケット11内に残留すると、次の豆乳計量で豆乳の濃度を薄めてしまい、豆腐の味を損ねて品質の低下につながるため、次の豆乳が投入される前までには、散水用水や凝固物分散液(洗い込み液)は、凝固バケット11から完全に排出されるのが好ましい。
なお、散水する水の量は凝固バケット11内の豆乳に対し0.1%~1%であることが好ましい。これにより、散水装置15より散水された水によって洗い流された、付着凝固物Saを含む凝固物分散液が凝固物排出管14を介して次工程へ搬送される(ステップS9)。
なお、図8に示すように、ポンプ19によって排出された複数の凝固バケット11からの凝固物S及び凝固物分散液Saは、撹拌装置41を有する凝固物集合タンク(貯留タンク)40に一度集められ、その後、ポンプ42によって、水取機43に移送され、さらに、分配機44を介して成形装置3に送られてもよい。凝固物集合タンク40に集めることで、凝固バケット11から直接水取機43へ搬送するよりも一定量の凝固物Sおよび凝固物分散液Saを水取機43に移送でき、分配機44を介して成型装置3に送られたときに成型装置3で厚さが均一な製品を生産しやすくなる。
例えば、散水装置15は、ボール式や回転式スプレーノズルを備えて、CIP洗浄時、バケット11内部をアルカリ性や酸性の洗浄薬液をそのノズルから散布して、薬液循環洗浄や濯ぎ洗いに兼用してもよい。仕上げに水蒸気や次亜塩素酸ソーダ水や次亜塩素酸水等もそのノズルから噴霧して殺菌も行うようにしてもよい。
なお、この場合、シャワーノズルの一部のノズル孔は、撹拌軸18b、撹拌羽根18a、邪魔板30に向けて散水できる、指向性を有するものであってもよい。
11 凝固バケット
12 豆乳供給管
13 凝固剤供給管
14 凝固物排出管
15 散水装置
16 洗浄水供給管
17 蓋
18 撹拌装置
19 ポンプ
30 邪魔板
Claims (14)
- 凝固バケットの内部に散水装置を備える凝固装置を使用し、豆乳と凝固剤が混合した凝固物を排出する工程で、前記散水装置から水を散水することで前記凝固バケットの内部に付着した豆乳と凝固剤が混合した付着凝固物を洗い流し、該付着凝固物の分散液を前記凝固物に混合して利用する、豆腐類の製造方法。
- 前記散水装置は、定量的に散水する、請求項1に記載の豆腐類の製造方法。
- 前記散水装置は、前記豆乳と前記凝固剤が混合した凝固物を次工程へ搬送中に、前記水を散水する、請求項1又は2に記載の豆腐類の製造方法。
- 前記散水装置より散水される水は、食品製造用水であって、洗浄水供給装置によって加温された40~100℃のお湯である、請求項1~3のいずれか1項に記載の豆腐類の製造方法。
- 前記凝固バケットは、保温手段を備える、請求項1~4のいずれか1項に記載の豆腐類の製造方法。
- 前記凝固バケットの内部は、表面研磨または表面処理加工が施された部材によって構成される、請求項1~5のいずれか1項に記載の豆腐類の製造方法。
- 前記付着凝固物の分散液は、貯留タンクで前記凝固物に混合されて利用される、請求項1~6のいずれか1項に記載の豆腐類の製造方法。
- 凝固バケットの内部に散水装置を備える凝固装置を備え、
前記散水装置は、水を散水することで前記凝固バケットの内部に付着した豆乳と凝固剤が混合した付着凝固物を洗い流し、該付着凝固物の分散液を凝固物に混合して利用する、豆腐類の製造装置。 - 前記散水装置は、前記付着凝固物に定量的に散水するための設備を備える、請求項8に記載の豆腐類の製造装置。
- 前記散水装置は、前記豆乳と前記凝固剤が混合した凝固物を次工程へ搬送中に、前記水を散水する、請求項8又は9に記載の豆腐類の製造装置。
- 前記散水装置より散水される水は、食品製造用水であって、洗浄水供給装置によって加温された40~100℃のお湯である、請求項8~10のいずれか1項に記載の豆腐類の製造装置。
- 前記凝固バケットは、保温手段を備える、請求項8~11のいずれか1項に記載の豆腐類の製造装置。
- 前記凝固バケットの内部は、表面研磨または表面処理加工が施された部材によって構成される、請求項8~12のいずれか1項に記載の豆腐類の製造装置。
- 前記凝固バケットに接続された凝固物排出管には、前記付着凝固物の分散液を、前記凝固物に混合させる貯留タンクが設けられる、請求項8~13のいずれか1項に記載の豆腐類の製造装置。
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