WO2006009150A1 - 革新的殺菌方法とその用途および装置 - Google Patents
革新的殺菌方法とその用途および装置 Download PDFInfo
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- WO2006009150A1 WO2006009150A1 PCT/JP2005/013264 JP2005013264W WO2006009150A1 WO 2006009150 A1 WO2006009150 A1 WO 2006009150A1 JP 2005013264 W JP2005013264 W JP 2005013264W WO 2006009150 A1 WO2006009150 A1 WO 2006009150A1
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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
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
- A23L3/24—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials with the materials in spray form
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
- A61L2/06—Hot gas
- A61L2/07—Steam
Definitions
- the present invention relates to a heating and sterilizing method using gaseous water using gaseous water (gaseous water) and an apparatus thereof, and more specifically, gaseous water formed by replacing a heating chamber with gaseous water.
- the present invention relates to a heating / sterilization method using gaseous water that heats a material to be treated in an atmosphere, a method for producing a heating / sterilizing treatment product using the method, and a heating / sterilizing apparatus using gaseous water for use in the method.
- a heating method using heated steam for example, steam heating (steamed) using saturated steam
- high-pressure steam heating using high-pressure steam generated from a boiler is known.
- superheated steam heating using high-temperature and high-pressure superheated steam (superheated steam) formed by further heating high-pressure steam generated from a boiler to a higher temperature is known.
- the steam heating is a method of heating the material to be treated by so-called “steaming” by filling the heating chamber with water vapor generated by heating water to about 100 to 120 ° C.
- high-pressure steam heating using high-pressure steam from a boiler is a method in which a material to be treated is heated using saturated steam that has been pressurized and heated to a heat source.
- the above-mentioned superheated steam heating is performed by further heating the high-pressure steam generated by the boiler force and injecting heat-stable metastable superheated steam heated to 140 ° C or higher into the heating chamber. And subjecting the material to be processed to heat treatment.
- this heating method since a dry high-temperature and high-pressure atmosphere is formed by superheated steam, this heating method is used as a heating means close to firing.
- the above-mentioned superheated steam heating can use dry steam that is high in temperature and pressure, high in calorie, strong and metastable in terms of heat energy.
- dry steam that is high in temperature and pressure, high in calorie, strong and metastable in terms of heat energy.
- food heating and baking means agricultural and livestock products waste baking means
- Various application techniques have been proposed as carbonization means for wood, cleaning means for metal material surfaces, etc. (see Patent Documents 1 to 5).
- Patent Document 1 Japanese Patent Laid-Open No. 06-090677
- Patent Document 2 Japanese Patent Laid-Open No. 2001-0661655
- Patent Document 3 Japanese Patent Laid-Open No. 2001-214177
- Patent Document 4 Japanese Patent Laid-Open No. 2001-323085
- Patent Document 5 Japanese Patent Application Laid-Open No. 2002-194362
- the present inventors have made a completely new steam-heating / sterilization system different from the normal water steam heating and the superheated steam heating.
- the conventional method does not necessarily fully utilize the characteristics of water as a gas, and the heating chamber is replaced with water gas to form a “gas water” atmosphere.
- the present inventors have found that the characteristics of water as a gas can be fully utilized, thereby realizing a heating and sterilization method using water vapor that is essentially different from the conventional method. It came to.
- An object of the present invention is to provide a heating and sterilizing method using a new "gas water” which is completely different from conventional steam heating and superheated steam heating.
- Another object of the present invention is to provide an apparatus for generating “gas water” used in the “gas water” heating and sterilization method and a heating and sterilization apparatus using “gas water”.
- the present invention replaces the heating chamber with a water gas to form a gas component (gaseous water) having a humidity of 99.0% or more and an oxygen concentration of 1.0% or less, and the method “ A method of heating and sterilizing the material to be treated in the atmosphere of ⁇ gaseous water '', and manufacturing a heated and sterilized product by the method It is an object of the present invention to provide a method and an apparatus therefor.
- the present invention for solving the above-described problems comprises the following technical means.
- Hot water heated to 100 ° C or higher and Z or water vapor are continuously injected into the heating chamber of the semi-enclosed space heated to the same temperature or higher to generate fine water droplets and wet hot water vapor.
- a method for heating and sterilizing a material to be treated characterized by heating and sterilizing the material to be treated.
- (2) A gas component having a composition with a humidity of 99% or more and an oxygen concentration of 1% or less, maintained in a temperature range of 95 to 150 ° C, by substituting the air in the heating chamber with the fine water droplets and wet heat steam.
- a heating / sterilization treatment characterized by producing a heated / sterilized product by heating / sterilizing the material to be treated by the heating / sterilization method according to any one of (1) to (3) above Product manufacturing method.
- the air in the heating chamber is replaced with a gas component held in the temperature range of 90 to 180 ° C, and the material to be treated in the caloric heating chamber is replaced with the fine water droplets and wet heat steam.
- Heating and sterilizing equipment using gaseous water characterized in that it is heated and sterilized by applying continuous amplitude heating with a temperature difference of at least 10 ° C.
- a water supply thin tube provided with a water supply tank, a water supply pump for supplying water from the water supply tank to the heating chamber, and an external heater for heating the supplied water to 100 ° C or higher as water vapor generating means (6), characterized in that it has a spray nozzle installed at its tip, and a rotatable circulation fan that refines high-temperature water vapor sprayed from the spray nozzle and transfers it in a predetermined direction. Heating 'sterilizer.
- a heating means for heating the heating chamber to a predetermined temperature exceeding 100 ° C a plurality of sheathed heaters in the form of hairpins are installed at positions where fine water droplets generated in the heating chamber and wet heat steam come into contact.
- heating and sterilizing is as follows: (1) Hot water and Z or steam heated to 100 ° C. or higher Are continuously sprayed into a heating chamber in a semi-enclosed space heated to the same temperature or higher to generate fine water droplets and wet heat steam. (2) The air in the heating chamber is replaced with the fine water droplets and wet heat steam. It has a composition with a humidity of 95% or more and an oxygen concentration of 1% or less, and is filled with a gas component held in a temperature range of 90 to 180 ° C.
- the temperature of the material to be treated with the fine water droplets and wet heat steam The heat treatment is performed by performing continuous amplitude heating with a temperature difference of at least 10 ° C in the region.
- fine water droplets and wet heat steam mean a mixed system of high humidity wet heat steam and fine water droplets partially generated by the condensation thereof, and dry hot water steam means that the wet heat steam is dried. It means high dry steam that is partially generated.
- the material to be treated with the fine water droplets and wet heat steam is in a temperature range of 90 to 180 ° C. Heat treatment with continuous amplitude heating at a temperature difference of at least 10 ° C.
- continuous amplitude heating with a temperature difference of at least 10 ° C is a short time in the temperature range of 90 to 180 ° C.
- the material to be treated can be continuously heated with an amplitude of a temperature difference of 10 to 50 ° C.
- the mixed state of the fine water droplets and the wet heat steam is referred to as gaseous water (Aqua Gas and (registered trademark)).
- the heating chamber is heated to a predetermined temperature exceeding 100 ° C, hot water and Z or water vapor are introduced into the heating chamber, and the heating chamber is replaced with water gas (gaseous water). Then, the material to be heated is heated in a gaseous water atmosphere formed by reducing the oxygen concentration to 1.0% or less.
- the heating chamber is composed of a predetermined quasi-closed system space in which the material to be heated can be heated while being cut off from the outside air, and preferably, for example, a plate on which the material to be heated is placed, partly A semi-sealed space having an openable and closable door portion having a glass window portion formed thereon is exemplified.
- the heating chamber is preferably formed of a stainless steel material.
- the heating chamber is preferably heated to a temperature equal to or higher than the temperature of hot water and Z or water vapor introduced into the heating chamber.
- the heating chamber is heated to a predetermined temperature, fine water droplets and wet heat steam are generated in the heating chamber, and the air in the heating chamber is replaced with a gas of water.
- the fine water droplets and the wet heat steam are heated by a heater from the outside of the thin tube with water supplied at a predetermined flow rate through the thin tube, and are introduced into the heating chamber via the nozzle provided at the end of the thin tube. Is generated.
- the fine water droplets and wet heat steam are gas components of high temperature and normal pressure heated to 100 to 180 ° C, more preferably 95 to 150 ° C, and have an effect of heating the material to be processed with high energy efficiency. .
- the heated water is sprayed into the heating chamber through a nozzle.
- the heating chamber is heated to a predetermined temperature of 100 ° C or higher under normal pressure, and the sprayed water droplets are vaporized to bring the heating chamber into a mixed state of fine water droplets and wet heat steam.
- a state in which fine water droplets are mixed in the water vapor atmosphere is called aqua gas.
- water in a water supply tank is pumped up by a water supply pump, supplied to a steam generation heat storage panel through a conduit made of a thin tube, and heated to a predetermined temperature of, for example, 105 to 200 ° C by a heater,
- the steam spray nozzle force installed at the tip of the narrow tube also sprays hot water and Z or steam at high speed.
- the water vapor nozzle an appropriate one may be used as long as it has a function of forming a fine injection hole at the tip, and having a function of refining hot water and Z or water vapor.
- the diameter of the fine injection holes, the number of holes, the positions of the holes, etc. can be arbitrarily set.
- the spray speed of hot water and Z or steam with steam spray nozzle force is preferably about 160 to 200 Zs at the tip of the spray nozzle, but the size, type and purpose of use of the device are not limited to these. For example, it can be arbitrarily set by changing the hole diameter, the number of holes, and the like of the fine injection holes.
- the water vapor injected from the fine injection nozzle is introduced into the heating chamber.
- the water vapor is injected into a circulation fan installed close to the tip of the injection nozzle, Water vapor is transferred in a predetermined wind direction by the impact force and wind force generated by the rotation of the circulation fan, and the water vapor is brought into contact with a heater installed in accordance with the wind direction so that the water vapor is not lowered in temperature in the heating chamber.
- the heating chamber is replaced with a gas of water kept at a predetermined temperature, and the humidity is 95% or more and the oxygen concentration is 1.0% or less, more preferably, the humidity is 99.0% or more and oxygen
- a gas water atmosphere can be formed in the heating chamber by filling the heating chamber with a gas component having a concentration of 1.0% or less.
- the hot water and Z or water vapor injected from the fine injection port are further refined by colliding with the circulation fan.
- the heater installed in the lee of the wind direction formed by the circulation fan is preferably jetted so that the surface thereof is in direct contact with the jetted hot water and Z or water vapor in a large area. Install in a position and direction that will block the hot water and Z or water vapor that is generated. As a result, the heat from the heater can be efficiently transferred to the jetted hot water and Z or water vapor, and the temperature drop of the jetted hot water and Z or water vapor can be reliably prevented.
- the circulation fan is installed, for example, in the center of the rear surface side in the heating chamber, and the sprayed hot water and Z or water vapor are installed in ducts located on the left side surface and the right side surface of the heating chamber.
- An example is one that has the function of transporting it directly in contact with a heated heater.
- the power shown is not limited to these. Also, the heater is preferably
- a large number of sheathed heaters are installed in a hairpin shape to increase the contact area with the sprayed hot water and Z or water vapor, but this is not a limitation.
- Any device having the same function can be used in the same manner.
- the number of rotations and the direction of rotation of the circulating fan is determined by considering the size of the device, the position and shape of the duct, the shape of the heater, the installation position, etc. It is set so that it can circulate as a circulating wind.
- a material to be treated is introduced into the heating chamber, and a predetermined heat treatment is performed using the gaseous water as a heat medium.
- the heat treatment referred to here includes all kinds of heat treatment using the above-mentioned gaseous water as a heat source, and preferably includes, for example, thawing treatment by heating a frozen material, heat treatment of the material, and heating of the material. Examples include drying, melting or baking by heating the material, and heat treatment of a liquid containing water.
- the material to be treated is not particularly limited, but preferable examples include frozen products, plant products, organic materials, inorganic materials, agricultural products, food products, wood, metals, ceramics, plastics and the like. However, the present invention is not limited to these, and can be applied to all types of materials to which heat treatment such as drying, heating, sterilization, baking, thawing and cooking is applied. Is.
- the material to be treated introduced into the heating chamber is subjected to a predetermined heat treatment, and then carried out of the heating chamber at an appropriate timing, and the gaseous water in contact with the material to be treated is discharged from the gaseous water discharge port to the system. Discharged outside.
- the hot water and Z or water vapor injected into the heating chamber first collides with the circulation fan, is refined, transferred to the duct, contacts the heater installed in the duct, and is heated to a predetermined temperature. After contact with the material to be treated introduced into the heating chamber and used as a heat medium, it is discharged out of the system.
- the thermal energy of gaseous water as a heat medium is used as a heat source for heat treatment of the material to be treated.
- the injected hot water and Z or water vapor directly contact the material to be treated. Then, after being heated by the heater installed in the duct, the material to be treated is brought into contact with the material to be treated and without reducing the heat quantity of the injected hot water and Z or water vapor.
- the material to be processed can be efficiently heated.
- the injected hot water and Z or water vapor collide with the circulation fan at high speed, for example, and the water droplets are divided by the impact due to the collision, and further refined and further heated.
- the finely heated high-temperature gaseous water consists of high-temperature water particles with high thermal conductivity that are completely transparent to the naked eye, and has high permeability to the inside of the material to be treated.
- subsequent high-temperature gaseous water constantly supplies heat energy to gaseous water that has permeated into the material to be treated and exchanged heat, so heat with high thermal conductivity is continuously transferred to the inside. It moves and gaseous water penetrates efficiently into the material to be treated, and the material to be treated can be heated in a short time.
- the jetted hot water and water droplets of Z or water vapor are further refined by colliding with a circulation fan, if necessary, and fill the heating chamber as sterilizing fine water particles.
- the water tank power The pH of the collected water was about 6.9 to 7.1
- the pH of this bactericidal fine water particle was about 5.2 to 5.8, 105 ° C
- a highly bactericidal gaseous water atmosphere is formed in the heating chamber. Therefore, when the present invention is applied to, for example, agricultural products and foodstuffs, the material to be treated can be heat-treated in a highly sterilizing atmosphere, so that a high sterilizing effect can be imparted simultaneously with heating.
- FIG. 1 is a front view of a heating apparatus according to the present invention, a heating chamber 1 for heating a material to be treated from outside air and heating, an openable / closable door portion 2 installed in front of the heating chamber 1, a handle 3 thereof, and A batch type apparatus including a window 4, an operation panel 5, and a feed water heating apparatus 15 as components is shown.
- the heating chamber 1 forms a predetermined space in which a material to be processed (not shown) can be accommodated and heat-treated.
- the door part 2 installed in front of the heating chamber 1 has a structure that can be opened and closed appropriately by operating the handle 3, and the window 4 is installed to check the heating status of the material to be treated.
- the heating chamber may be single or plural. For example, in a continuous apparatus, it is possible to provide a plurality of heating chambers having different processing temperatures. In that case, the door portion may be omitted. it can.
- FIG. 2 is a longitudinal plan view of the above-described apparatus. Water heated through the steam generation and heat storage panel 6 is jetted into the heating chamber as high-temperature steam through a fine steam jet nozzle and rotates.
- the material to be treated (not shown) is brought into contact with the material as the circulation air direction 10 and the material to be treated is heated.
- the gaseous water used as a heat source is discharged out of the system through the discharge port 11.
- the water vapor injected into the heating chamber is transferred by a circulation fan 7 to ducts 8 and 8 ′ provided on the left side and right side of the apparatus, and is heated by a heater 9.
- the temperature condition of the heater 9 is set to a temperature equal to or higher than the force matched with the temperature level of the injected hot water and Z or water vapor.
- the heating chamber and the heater for heating the jetted hot water and Z or water vapor and the heating means for heating the supplied water to generate high temperature water vapor at a predetermined temperature are independently provided. By installing and using them together, it becomes possible to independently control the temperature of the hot water and Z or water vapor to be injected and the temperature in the heating chamber.
- the material to be treated can be heat-treated with gaseous water with energy saving without excessive loss of water vapor.
- FIG. 3 is an example of the steam generation high heat panel of FIG. 2, in which water supplied from a water supply tank via a water supply pump is heated via a thin tube provided with a heater wire. At the same time, fine water particles 12 are ejected from the spray nozzle 11 installed at the tip of the nozzle.
- FIG. 3 shows an example of the steam generation heat storage panel 6 in which a large number of U-shaped narrow tubes are combined.
- the steam generation heat storage panel 6 is not limited to this and may be used in the same manner if it has a similar function. it can.
- the above-described steam generation heat storage panel is used to heat water, preferably to 105 to 200 ° C.
- water is heated to about 108 to 115 ° C and ejected. It is preferable to make it.
- gaseous water as a heat medium is most efficiently used.
- hot water heated to about 108 to 115 ° C and Z or water vapor are preferably jetted into a heating chamber set to about 108 to 115 ° C.
- gaseous water (sometimes referred to as Aqua Gas (registered trademark), AQG) is heated to 100 ° C. or more by an external heater in an open system such as an open pipe.
- Hot water and Z or water vapor are continuously jetted in a heating chamber that is stably heated to the same or higher temperature than the hot water and Z or water vapor temperature in an open quasi-sealed state so as not to generate pressure.
- the inside of the heating chamber is filled with water vapor under normal pressure, and by replacing with air, the humidity is 90% or more and the oxygen concentration is 1.0% or less, more preferably, the humidity is 99.
- a gas component with 0% or more and oxygen concentration 1.0% or less.
- the gas component (gaseous water) generated in the heating chamber does not cause a temperature drop in the heating chamber that is stably heated to a temperature equal to or higher than the water vapor temperature. Since the density of the discharged water vapor is stably maintained, it acts as a high heat quantity heat medium with little loss of heat energy, and energy-saving heating in a non-oxidized state can be realized.
- the gaseous water can be suitably maintained at a temperature of, for example, 100 to 180 ° C. by selecting the capacity of the open external heater (panel heater) and the heating heater in the heating chamber, but is not limited thereto. Appropriate temperature conditions can be selected according to the purpose of use.
- Gaseous water has higher thermal conductivity than water vapor and superheated water vapor, for example, wet heat water vapor and fine water droplets that allow adjustment of the initial condensation period to improve the yield of processed foods.
- a heating medium “Aquagas” using the above it is suitably used for heating and sterilizing foods.
- the heating method using high-temperature and high-pressure steam is high-temperature and high-pressure.
- the steam is decompressed and continuously introduced into a semi-sealed heating chamber provided with an open pipe so that no pressure is generated in the state of low-pressure steam, the heating chamber and the material to be heated are Since it is heated with thermal energy, the temperature in the heating chamber is lower than the temperature of the introduced water vapor, so that the water vapor is It is always condensed and liquefied, the amount of latent heat is reduced, and the energy loss is extremely large.
- a large amount of steam and heat energy are required to fill the inside of the heating chamber with low-pressure steam and maintain the residual oxygen concentration below 1.0%.
- the material to be treated is heated by this heating method, a large amount of low-pressure steam is always sent into the hot chamber having a temperature lower than that of the introduced steam, and condensation due to heat exchange occurs. Therefore, for example, below 130 ° C, the material to be treated is heated in a steamed state due to the condensation.
- the heating method using a steam competition oven the heating chamber is heated to a constant temperature, and water vapor is always generated by evaporation of water at the vaporization temperature, and the temperature of the water vapor is the temperature inside the heating chamber. It rises by rising. Water vapor is in the process of temperature rise in the heating chamber and cannot maintain sufficient density and latent heat.
- the material to be treated is heated by this heating method, it is heated by water vapor containing dry air, not by heating with full water vapor, and the amount of latent heat is reduced.
- the heating method of the present invention water vapor heated to 100 ° C or higher by an external heater in an open system such as an open pipe does not cause pressure.
- an open system such as an open pipe
- hot water and Z or water vapor are continuously jetted to generate fine water droplets and wet heat water vapor. Therefore, the inside of the heating chamber is filled with water vapor in the normal pressure state, and is replaced with air.For example, it becomes a gas component state with a humidity of 99.0% or more and an oxygen concentration of 1.0% or less. Since water vapor does not cause a temperature drop, it is possible to maintain a high amount of latent heat.
- the temperature in the heating chamber does not decrease, water vapor condensation is small, and high latent heat is maintained, enabling non-acidic heating.
- the material to be treated can be subjected to continuous amplitude heating with a temperature difference of at least 10 ° C in the temperature range of 90 to 180 ° C.
- the heating method of the present invention realizes energy-saving heating with a high latent heat amount, heating without influence of condensation, and heating in a non-oxidized state. Table 1 compares the characteristic features of these heating methods.
- a material to be treated can be subjected to continuous heating with a temperature difference of at least 10 ° C in a temperature range of 90 to 180 ° C, and can be heated and sterilized.
- the material to be treated The heating chamber for heating with the outside shielded from the outside can be replaced with gas of water to make the gas component (gas water atmosphere) with a humidity of 99.0% or more and oxygen concentration of 0.1% or less, 3)
- the material to be treated can be heated and sterilized efficiently and less invasively in a short time with the above-mentioned gaseous water.
- an aqua gas generation test was conducted using the aqua gas generator shown in FIG. Start operation of the aqua gas generator, heat the semi-sealed heating chamber (heating chamber 1) to the same temperature as the steam temperature, and then continuously inject steam heated to 300 ° C into the chamber 1 Then, the inside of the chamber 1 was filled with water vapor in a normal pressure state. After a lapse of 25 minutes from the start of operation, a mixed state of fine water droplets and wet heat steam was created, and after about 7 minutes, it reached the state of “gaseous water” with a humidity of 99.9% and an oxygen concentration of 0.01%.
- water vapor around 115 ° C is considered to be a metastable state, but can be used as a heat medium with high density and high latent heat.
- these metastable and stable gaseous waters are selected and used arbitrarily depending on the type of the material to be heated, the purpose of the heating process, etc., taking advantage of its characteristics. It was possible that it was possible.
- the temperature change in the vicinity of the water vapor and fine water droplet injection nozzles when gaseous water was generated was examined using the apparatus shown in FIG. The result is shown in Fig. 6. As shown in the figure, it was found that continuous and short-term temperature changes occur in the temperature range of about 95-150 ° C with the amplitude of the temperature difference of about 10-40 ° C. In addition, it was found that the amplitude of the temperature difference and the composition of fine water droplets, wet heat steam and dry heat steam can be changed by adjusting the temperature of the sprayed steam and the temperature in the apparatus. In addition, the temperature inside the device at the time of gas water generation was compared with the gas water temperature.
- the supplied water was preheated with the heating device 15, and the amount of the supplied water was set to 115 5spm (3.62 lZh).
- the results are shown in Fig. 7.
- the internal temperature in the temperature range of about 120 to 150 ° C, it is possible to perform continuous amplitude heating under conditions of amplitude of temperature difference of about 20 to 50 ° C of gaseous water. I got it.
- the temperature in the apparatus and the temperature of the gaseous water when gaseous water was generated were compared.
- the results are shown in Fig. 8.
- the temperature in the device in the temperature range of about 115 to 165 ° C, the temperature of the water is continuously adjusted under the condition of the temperature difference of about 20 to 50 ° C.
- the fact that it was possible to heat the secondary amplitude was another factor.
- the heating time for heating tap water (lOOcc) to 80 ° C was compared using gaseous water in the temperature range of about 115-165 ° C.
- the results are shown in Fig. 9.
- gaseous water with a temperature condition of about 115 ° C was used, it was found that it showed high energy efficiency with the shortest heating time.
- Fig. 10 shows the temperature time curve for 115 ° C aqua gas (inside the chamber)
- Fig. 11 shows the temperature time curve for 115 ° C aqua gas (injection nozzle).
- FIG. 12 and FIG. The temperature-time curve of aqua gas is essentially different from the temperature-time curve of superheated steam and saturated steam, indicating that there is a component.
- each food was subjected to aqua gas heating / sterilization treatment.
- Soybean 20 1.30 0 0.00 0 0.00
- each food product was subjected to aquagas heating and sterilization, and the storage stability of sterilized foods and the like was examined.
- New onion Peeled and sliced into 3mm.
- New onion The remaining piece was peeled and served with a core.
- Pre-treated vegetables were placed on a predetermined tray, and a temperature sensor was inserted into the center of one specimen so that the core temperature could be measured. After heating, the specimen was placed in a sterile bag and gradually heated with cold running water. “Boiled” and “steamed” treatments were used as controls. The results are shown in Table 6.
- aquagas sterilized vegetables were prepared and examined for the shelf life of sugar beet.
- the first general viable count of “Potato salad with plenty of vegetables” prototyped with the above formulation was 300 or less, and 300 or less after storage at 10 ° C for 4 days.
- the first general viable count of “Potato Salad with Plenty of Vegetables” prototyped with normal heat-treated foods was 15 x 10 3 , and 90 x 10 5 after storage at 10 ° C for 4 days.
- Seasoning liquid 10g (seasoning liquid; soy sauce 14.2%, combined soup 14.2%, water 71. 6%)
- the control cooked for 11 minutes with steaming was initially 11 x 10 4 after storage at 10 ° C for 4 days, which is less than 300.
- Flavor 1. 75% (granule)
- the number of general viable bacteria of “radish boiled” prepared by a conventional method with the above formulation was 300 or less after initial storage and after storage at 10 ° C for 4 days.
- control products cooked in 40 minutes boiled radish from water initial became 10 ° C4_nichikanhozongonoippanseikinsuwa 56 X 10 3 300 or less.
- the number of general viable bacteria of “Shinjo Tosani” cooked in the usual manner with the above formulation was 300 or less after first storage and after storage at 10 ° C for 4 days.
- “Tsubasa Toni” cooked from commercially available “Mi steeli” has the same number of viable bacteria as the first one and after storage at 10 ° C for 4 days, but the flavor, texture and flavor are much higher than AQG. The prescription was excellent.
- fresh milk used as a raw material for a commercial product (Yamakawa ranch tokuno milk (628, Uonuma-cho, Nanae-cho, Kameda-gun, Hokkaido)) that was subjected to aquagas heating of raw milk and a minimally invasive sterilization test thereby.
- Raw milk milked on the day
- these are heat-treated with a gas water sterilizer under the prescribed conditions, followed by the prescribed post-treatment, A viable count was performed.
- a clean bench was used to remove several hundred g (liquid depth 30-35mm) of raw milk into a stainless steel bowl, and a temperature sensor was fixed at the center of the liquid.
- the bowl was set in an aqua gas sterilizer and heated to a predetermined temperature. It was gradually heated with a clean bench and subjected to a viable count test.
- Table 3 shows the results measured by the standard agar plate culture method. Holding the core temperature at 95 ° C for 1 minute and reaching the core temperature at 85 ° C both showed effective bactericidal effects. The results of the primary sensory evaluation were also good, and the characteristic “milky odor” without any shape change was eliminated, and it was well received that it was smooth and easy to drink.
- a refrigerated (3-5 ° C) storage stability test and a room temperature (average 25 ° C) standing test were conducted. Every predetermined time The number of general viable bacteria was measured. The results are shown in Tables 7 and 8.
- Yamakawa Farm Tokuno Milk non-homogenized non-adjusted product sterilized at 75 ° C for 15 minutes; expiration date of 10 ° C or less and stored within 5 days
- the number of viable bacteria was zero after 3 weeks and 1 month at 95 ° CZl and 85 ° C.
- the number of viable cells was zero after 7 days at 95 ° C and the separation started after 12 days.
- the 85 ° C product had a viable cell count of 10 6 or more after 5 days.
- the commercial product had zero viable count after 5 days, and reached 10 6 or more on the 7th day.
- rice cereal grains were subjected to aquagas heating and sterilization treatment.
- Table 9 shows the results of measurement of the initial bacterial count and standard method.
- Sharpen Koshihikari rice with tap water, drain it, drain and transfer to a stainless steel bowl 1. Add 2 volumes (volume) of water, immerse in refrigerator for 90 minutes, and then aquaga for 35 minutes. The cooked rice was cooked. Steamed for 15 minutes, allowed to cool, evaluated primary functionality, measured initial bacterial count and placed in a clear plastic container with a lid for a shelf life test. Also, sharpen commercial rice (Koshihikari) with tap water, lift it to a sieve, drain it, transfer it to a stainless steel bowl, add 1. 1 volume (volume) of water, soak in a refrigerator for 40 minutes, and then aqua gas for 30 minutes. We cooked rice. Steamed for 10 minutes, allowed to cool, primary functional evaluation, initial bacterial count, and placed in a transparent plastic container with a lid for a shelf life test. These results are shown in Table 10.
- the beans were subjected to an aquagas heating and sterilization treatment.
- fish and shellfish were aquagas heated and sterilized.
- Aquagas sterilization “Nii-Uni” was stored in refrigerated sealed packaging with oxygen scavenger, and the number of general bacteria after 6 months was 300 or less.
- Aquagas heat-sterilized “scallops” were stored in refrigerated sealed packaging with oxygen scavengers, and the number of general bacteria after 7 months was 300 or less.
- Aquagas heat sterilized “Oyster flakes” were kept in refrigerated sealed packaging with oxygen scavenger and maintained shape retention without discoloration or drip after 3 months.
- Aquagas heat sterilization “Nama Tarako” was stored in a refrigerated sealed package containing oxygen scavengers, and after 3 months, it did not produce drip with good coloring and was in good storage condition.
- Aqua Gas Heated “Bark Cut Baron Imo” was sealed and packaged in a fluorescent lamp and refrigerated for 6 months. Vitamin C residual rate was 85% with no discoloration or drip and good shape retention. . The number of general viable bacteria was less than 300. Cooked as a potato fry. In addition, the Aquagas heat treatment “Round Baron Imo” could be refrigerated for 12 months in sealed packaging. Cooking as potato fries was possible. The survival rate of vitamin C was 35% and the number of general viable bacteria was 300 or less. Furthermore, Aquagas heat sterilization “Cone (with core)” was stored in a sealed package refrigerated storage with oxygen scavenger, and the number of viable bacteria after 6 months was 300 or less. Example 9
- the presence of fine water droplets of aqua gas was examined using a high-speed camera.
- the nozzle used had a diameter of 1.9 mm, the amount of water was 50 mlZ, the temperature was 115 ° C, and normal aqua gas treatment conditions were used.
- Fine water droplets were photographed using a high-speed camera (Photron, FASTCAM-APX RS 250 K). The shooting speed was 5000 fps, and the exposure time was 1Z2 58000 seconds.
- the imaging area was 80 mm from the vicinity of the nozzle injection port and 220 mm.
- the heat transfer coefficient was confirmed to be dependent on the temperature of the heat transfer surface and the amount of fine water droplets, which was thought to be due to the effect of fine water droplets on heat transfer.
- those with ⁇ are considered to be superheated steam with a small amount of water.
- ⁇ is aqua gas under normal conditions. In the initial stage of heating the food (60-70 ° C), improvement in heat transfer is observed due to the attachment of fine water droplets to the surface with a high transfer coefficient.
- B. subtilis spores the (10 5 ⁇ L0 6 CFU / plate) using standard agar medium Nurimatsu.
- the processing temperature 110, 115, 120, 130, 140 ° C
- And processing time (0, 10, 20, 30 s) was changed.
- the discharge water amount was 51 ml lmin (device initial setting).
- the treated agar medium was scooped out in a petri dish and placed in a pine sack, and 50 ml of sterilized physiological saline was collected, and ground with a stomacher for 1 minute.
- the bactericidal effect was improved with the extension of the treatment time.
- the treatment temperature was 110-120 ° C
- the bactericidal effect decreased with increasing temperature. This is thought to be due to the atmosphere inside the chamber (water Z water vapor).
- the sterilization effect decreases when the temperature is increased from 110 ° C (aqua gas state) to 120 ° C and 130 ° C. This is because the amount of water is constant, so when the temperature rises, fine water droplets decrease, resulting in a superheated steam atmosphere. At that time, heat transfer is reduced and the sterilization effect is reduced. It is done.
- the present invention relates to a heating / sterilization method and a heating / sterilization apparatus using gaseous water
- the material to be treated is at least in a temperature range of 90 to 180 ° C. It can be heated and sterilized by applying continuous amplitude heating with a temperature difference of 10 ° C. Replace the heating chamber to heat the material to be treated from the outside with gas of water, and change it to a gas component (gaseous water atmosphere) with a humidity of 99.0% or more and an oxygen concentration of 0.1% or less. can do.
- the material to be treated can be efficiently and minimally invasively heated and sterilized with the above-mentioned gaseous water in a short time.
- It can be applied to thawing of frozen products, heating of agricultural products and foods, sterilization cooking, heating of wood, metal and ceramic materials, drying and baking. It is possible to provide a heating and sterilization apparatus using gaseous water that generates gaseous water and uses it as a heat medium.
- FIG. 1 is a front view of an embodiment of the apparatus of the present invention.
- FIG. 2 is a longitudinal plan view of the above apparatus.
- FIG. 3 is a conceptual diagram of an example of a steam generation and heat storage panel.
- FIG. 4 shows the results of measuring the temperature, humidity, oxygen concentration, and exhaust temperature in the chamber during the process of generating gaseous water by the steam generator.
- Fig. 5 shows a steam generator using a steam heater panel heater (2kw) and a heater in the heating chamber (lOkw) from 100 ° C to 300 ° C during operation of the steam generator. Shows the relationship between the water vapor discharge temperature, the internal temperature, the internal humidity, and the internal oxygen concentration.
- FIG. 6 shows a temperature change in the vicinity of a water vapor (aqua gas) injection nozzle.
- FIG. 7 shows a comparison of in-apparatus temperature Z water vapor (aqua gas) temperature.
- FIG. 8 shows a comparison of the internal temperature Z water vapor (aqua gas) temperature.
- Fig. 9 shows the result of a comparative test of heating time for heating tap water (lOOcc) to 80 ° C.
- FIG. 10 Shows the temperature time curve (inside the chamber) of aqua gas at 115 ° C.
- FIG. 11 A temperature time curve (injection nozzle part) of 115 ° C aqua gas is shown.
- FIG.12 Shows time curve of temperature in 115 ° C superheated steam state (inside chamber and spray nozzle)
- FIG.13 Shows time curve of temperature in saturated steam state at 115 ° C (inside chamber and spray nozzle)
- FIG. 14 shows changes in the number of Bacillus subtilis spores on agar plates due to aquagas.
- FIG.15 Shows the relationship between the droplet diameter and the distance from the sprayed location (nozzle).
- FIG.16 Shows the relationship between the temperature of the heat flow sensor surface and the heat transfer coefficient.
- FIG. 17 is an explanatory view showing the sterilizing effect of aqua gas (110 ° C.).
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Nutrition Science (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- External Artificial Organs (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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AU2005264489A AU2005264489B2 (en) | 2004-07-16 | 2005-07-19 | Innovative pasteurization method, use thereof and apparatus |
EP05762062A EP1782840B1 (en) | 2004-07-16 | 2005-07-19 | Innovative pasteurization method, use thereof and apparatus |
US11/632,483 US8257771B2 (en) | 2004-07-16 | 2005-07-19 | Innovative pasteurization method, use thereof and apparatus |
JP2006529229A JP4997566B2 (ja) | 2004-07-16 | 2005-07-19 | 保存安定性向上方法とその製品の製造方法および装置 |
DE602005007246T DE602005007246D1 (de) | 2004-07-16 | 2005-07-19 | Innovatives pasteurisationsverfahren, dessen verwendung und gerät |
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JP2004210872 | 2004-07-16 | ||
JP2004-210872 | 2004-07-16 |
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WO2006009150A1 true WO2006009150A1 (ja) | 2006-01-26 |
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PCT/JP2005/013264 WO2006009150A1 (ja) | 2004-07-16 | 2005-07-19 | 革新的殺菌方法とその用途および装置 |
Country Status (7)
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US (1) | US8257771B2 (ja) |
EP (1) | EP1782840B1 (ja) |
JP (1) | JP4997566B2 (ja) |
AT (1) | ATE396747T1 (ja) |
AU (1) | AU2005264489B2 (ja) |
DE (1) | DE602005007246D1 (ja) |
WO (1) | WO2006009150A1 (ja) |
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JP2007195956A (ja) * | 2005-12-28 | 2007-08-09 | Akira Matsui | 常圧、低酸素下で滅菌性過熱水蒸気を利用した滅菌装置 |
JP2007228870A (ja) * | 2006-02-28 | 2007-09-13 | National Agriculture & Food Research Organization | アクアガスを用いた農産物のフード供給システム |
JP2008125427A (ja) * | 2006-11-20 | 2008-06-05 | Umeda Jimusho:Kk | 革新的加熱方法とその用途及び装置 |
JP2008178312A (ja) * | 2007-01-23 | 2008-08-07 | Nisshin Foods Kk | 麺類の製造方法 |
JP2009091386A (ja) * | 2007-10-03 | 2009-04-30 | National Agriculture & Food Research Organization | 革新的加熱媒体とその発生方法及び装置 |
US20100055277A1 (en) * | 2007-02-21 | 2010-03-04 | Yoshitaka Nadachi | Process for producing functional material, the functional material and continuous heating apparatus for obtaining the same |
JP2011211965A (ja) * | 2010-03-31 | 2011-10-27 | National Agriculture & Food Research Organization | アクアガスを用いて調製した加熱・殺菌・乾燥植物とその調製方法 |
JP2013147662A (ja) * | 2013-04-15 | 2013-08-01 | National Agriculture & Food Research Organization | 加熱媒体 |
JP5784486B2 (ja) * | 2009-04-02 | 2015-09-24 | 有限会社梅田事務所 | 加工用素材・加工品の製造方法 |
KR101734534B1 (ko) | 2012-06-14 | 2017-05-11 | 헬스밸런스 주식회사 | 원료의 영양분은 그대로 보존하고 유해균을 완전히 사멸하는 이유식의 살균 방법 |
JP2018162891A (ja) * | 2017-03-24 | 2018-10-18 | 株式会社タイヨー製作所 | 食品乾燥装置 |
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US11064708B2 (en) | 2014-01-10 | 2021-07-20 | Robert B. STRYKER | Process to produce safe pasteurized shrimp and other shellfish of high sensory quality and extended refrigerated shelf-life |
FR3023127B1 (fr) * | 2014-07-07 | 2018-09-14 | Lutetia | Installation de decongelation ou de temperage de produits alimentaires congeles |
DE102016215650A1 (de) * | 2016-08-19 | 2018-02-22 | BSH Hausgeräte GmbH | Haushaltsgargerät |
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- 2005-07-19 US US11/632,483 patent/US8257771B2/en not_active Expired - Fee Related
- 2005-07-19 DE DE602005007246T patent/DE602005007246D1/de active Active
- 2005-07-19 JP JP2006529229A patent/JP4997566B2/ja active Active
- 2005-07-19 AU AU2005264489A patent/AU2005264489B2/en not_active Ceased
- 2005-07-19 EP EP05762062A patent/EP1782840B1/en not_active Not-in-force
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Cited By (14)
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JP2007195956A (ja) * | 2005-12-28 | 2007-08-09 | Akira Matsui | 常圧、低酸素下で滅菌性過熱水蒸気を利用した滅菌装置 |
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JP2008125427A (ja) * | 2006-11-20 | 2008-06-05 | Umeda Jimusho:Kk | 革新的加熱方法とその用途及び装置 |
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JP2009091386A (ja) * | 2007-10-03 | 2009-04-30 | National Agriculture & Food Research Organization | 革新的加熱媒体とその発生方法及び装置 |
JP5784486B2 (ja) * | 2009-04-02 | 2015-09-24 | 有限会社梅田事務所 | 加工用素材・加工品の製造方法 |
JP2011211965A (ja) * | 2010-03-31 | 2011-10-27 | National Agriculture & Food Research Organization | アクアガスを用いて調製した加熱・殺菌・乾燥植物とその調製方法 |
KR101734534B1 (ko) | 2012-06-14 | 2017-05-11 | 헬스밸런스 주식회사 | 원료의 영양분은 그대로 보존하고 유해균을 완전히 사멸하는 이유식의 살균 방법 |
JP2013147662A (ja) * | 2013-04-15 | 2013-08-01 | National Agriculture & Food Research Organization | 加熱媒体 |
JP2018162891A (ja) * | 2017-03-24 | 2018-10-18 | 株式会社タイヨー製作所 | 食品乾燥装置 |
JP7456704B2 (ja) | 2019-05-16 | 2024-03-27 | 明星食品株式会社 | 乾燥野菜の製造方法並びに乾燥野菜 |
WO2021002366A1 (ja) * | 2019-07-01 | 2021-01-07 | 株式会社Stiフードホールディングス | パック入り焼きタラコとその製造方法 |
Also Published As
Publication number | Publication date |
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EP1782840B1 (en) | 2008-05-28 |
DE602005007246D1 (de) | 2008-07-10 |
EP1782840A4 (en) | 2007-08-29 |
JPWO2006009150A1 (ja) | 2008-05-01 |
JP4997566B2 (ja) | 2012-08-08 |
AU2005264489B2 (en) | 2010-12-23 |
ATE396747T1 (de) | 2008-06-15 |
US8257771B2 (en) | 2012-09-04 |
US20080020114A1 (en) | 2008-01-24 |
AU2005264489A1 (en) | 2006-01-26 |
EP1782840A1 (en) | 2007-05-09 |
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