WO2002053513A1

WO2002053513A1 - Ceramic sphere for preventing deterioration of fats and oils and apparatus for preventing deterioration of fats and oils using the ceramic sphere

Info

Publication number: WO2002053513A1
Application number: PCT/JP2000/009441
Authority: WO
Inventors: Rai-Hyun Oh; Kunio Ogawa
Original assignee: Mitsubishi Corporation; Eagle Japan Co., Ltd.
Priority date: 2000-12-28
Filing date: 2000-12-28
Publication date: 2002-07-11
Also published as: JPWO2002053513A1

Abstract

A ceramic sphere for preventing deterioration of fats and oils which may be prepared by a method comprising admixing a fine metal oxide powder comprising 35 to 55 mass % of silicon oxide, 25 to 45 mass % of aluminum oxide, 2 to 8 mass % of ferric oxide, 1 to 5 mass % of titanium oxide and 1 to 5 mass % of magnesium oxide and having a particle diameter of 200 to 300 meshes, with 3 to 8 mass % of a fine power of calcareous ovolite obtained by burning a raw material at 1700 to 1800°C and then pulverizing to a particle diameter of 200 to 300 meshes and 5 to 15 mass % of a clay mineral or a mixture of clay minerals comprising five or more selected from among iron (Fe), manganese (Mn), titanium (Ti), calcium (Ca), magnesium (Mg), aluminum (Al), silicon (Si), potassium (K) and sodium(Na) and having a particle diameter of 200 to 300 meshes, adding water to the resultant admixture, followed by kneading, forming and drying, and then burning the dried, formed product at a temperature of 1500°C or higher; and an apparatus for preventing deterioration of fats and oils using the ceramic sphere.

Description

TECHNICAL FIELD The technical field of the invention relates to a ceramic spherical body for preventing oil and fat deterioration and an oil and fat deterioration preventing apparatus using the ceramic spherical body.

The present invention relates to a ceramic spherical body for preventing and processing fats and oils, in particular, fats and oils for business use and food processing, and an apparatus for preventing fats and oils deterioration using the ceramic spherical bodies. By colliding a far-infrared radioactive ceramic spherical body placed in a flowing oil to be treated with the oil to be treated, the ceramic spherical body prevents oxidation and decomposition of the oil and fat to prevent deterioration. The present invention also relates to a device for preventing deterioration of fats and oils using the ceramic spherical body. Conventional technology ''

Fats and oils become peroxides when oxidized, undergo chemical changes such as decomposition and polymerization, and produce odors and pungent odors in a relatively short period of time, and produce an unpleasant taste. In particular, vegetable oils mainly composed of unsaturated fatty acids used in frying produce radicals adjacent to the double bonds of unsaturated fatty acids, which react with oxygen in the air to form peroxides. It is susceptible to oxidation. The peroxide decomposes or polymerizes, but at that time, it also generates radicals, so that further oxidation occurs, the oxidation proceeds in a chain, polymerizes, the viscosity increases, and foaming becomes easy. In addition, not only oxidation by heat, but also the fats and oils are hydrolyzed by the water of the fried seeds, and fatty acids are separated. The main causes of degradation are heat and oxygen, and the higher the temperature, the faster the oxidation progresses. In addition, free radicals are generated and generated by trace metals such as light, iron, and copper. Oxidation proceeds in a chain due to the free radicals.

Such deterioration of oil is a major problem, especially in food processing factories that use a large amount of vegetable oil, and the limit on the use of edible oil is determined by the numerical value of the degree of oxidation. It has been disposed of as waste oil after replacement as 2.5 to 3.0. Delaying the oxidation of fats and oils has the effect of reducing the amount of fats and oils used, and therefore, not only reducing costs, but also keeping food odors and tastes fresh and not impairing the nutrition of the food itself. In addition, it has the effect of reducing the contamination of the workplace due to polymerized fats and oils. Furthermore, if the progress of fat and oil deterioration is delayed, the amount of waste oil also decreases, and thus the pollution caused by the processing of waste oil can be reduced.

Therefore, antioxidants have been used to prevent oxidation of fats and oils, but the amount of antioxidants that can be added to fats and oils is generally limited, and the use of antioxidants is It only delays the oxidation during the storage period, and once it starts to be used by continuous heating, the oxidation phenomenon proceeds and there is no effective way to stop or delay the oxidation phenomenon.

Further, it has been proposed to use ceramics as an antioxidant for fats and oils (for example, Japanese Patent Application Laid-Open Nos. 5-330951 and 7-28971-4). And Japanese Patent Application Laid-Open No. 9-142950, etc.). JP-A-5-330951 discloses a ceramic for preventing the oxidation of edible oil obtained by calcining natural zeolite and powder containing a large amount of calcium such as oyster shells. Japanese Patent Application Laid-Open No. Hei 9-114,950 discloses that the total of monovalent alkali metal oxides such as sodium oxide and oxidizing power in the ceramic composition after firing is 2.5% by mass. The above-mentioned porous ceramics for preventing oxidation of fats and oils are described.

Also, Japanese Patent Application Laid-Open No. Hei 7-28991 74 discloses a black vitreous quartz. Andesite ore is pulverized into fine particles of 1 to 50 microns, mixed with clay, put in a kneading mold, molded and dried, pre-baked by unglazing, and the fine particles are dissolved in water. By immersing the unbaked product, fine particles are adhered to the surface thereof, dried, placed in a pottery kiln, and baked at a temperature of 1200 to 130 degrees Celsius, and made of far infrared radiation made of ceramics. The product is used to prevent the oxidation of edible fats and oils and industrial fats and oils. In this product, the fine particles of andesite ore are melted together, cooled and hardened, and solidified to produce ceramics free of ore fragments. The reason that the oxidation is delayed is that water and oil do not mix and remain separated due to the action of far-infrared rays.

Ceramics used to prevent oxidation of these fats and oils are used as generators of far-infrared rays and / or adsorbents such as oxides, and in each case, they are porous ceramics. Porous ceramics have the advantage of an adsorbing action, and although they have the effect of removing impurities, the adsorption becomes saturated in a short time due to the impurities adhering to the ceramic surface. Therefore, the effect as an adsorbent lasts only for a short time, and even if the ceramic emits far-infrared light, the impurities adhere to the surface of the ceramic, and the radiation of far-infrared light in a short time Will be blocked. Therefore, it does not work effectively for a long time in either the adsorption action or the far-infrared action.

In addition, the porous ceramics used to prevent oxidation of these conventional fats and oils are fragile due to their low sintering temperature, and cracks or chips occur due to the continuously applied pressure of the oil to be treated. It has the drawback that it is easy to crack and chipped or chipped porous ceramic may be mixed into the treated oil.

Oxidation of fats and oils is promoted by the generation of free radicals. To suppress oxidation, in addition to blocking oxygen, When free radicals are generated, they need to be converted into stable non-radicals and stabilized. Therefore, it is considered that if the ceramic itself emits electrons and ionizes to convert free radicals into non-radicals, the oxidation of the fats and oils to be treated can be more effectively prevented. These porous ceramics do not emit electrons to promote ionization of the fats and oils to be treated.

Further, a method for preventing oxidation of fats and oils using medicinal stones such as barley stone is described in Japanese Patent Application Laid-Open No. 58-162628. This is a method for preventing the oxidation of tempura oil.Metal or wire mesh containers, which have been surface-treated with enamel, heat-resistant paint, glass, etc., contain medicinal stones such as barley stone and are filled with oil and fat in an oil pan. It is sinking. Regarding this oxidation prevention method, metal containers increase oxidation, so put the scale in a container where the metal surface does not come into contact with oils and fats. It also states that the medicinal stone is easy to take out, and that the medicinal stone is contained in the container, so that the medicinal stone does not mix with the oil and fat.

In the above conventional method for preventing oil and fat oxidation of tangerine oil, the gemstone itself is a natural mineral and not sintered like ceramic, so its strength is weak and it cannot withstand long-time use. Also, since the top surface of the container holding the gypsum remains open, when used in submerged oils and fats filled with oil, the fried scum covers the top surface of the gypsum over time, causing oxidation of the gypsum There is a problem that the prevention effect is reduced early.

Summary of the Invention

Therefore, an object of the present invention is to dispose electrons in a fluid to be treated by placing them in a fluid to be treated, whereby electrons are emitted by collision between the ceramic spherical bodies or by collision with the fluid to be treated to ionize the fat to be treated. Activating By providing a ceramic spherical body that is also a generator of far-infrared rays, promotes the oxidation and prevention of fats and oils, promotes oxidative delay, activation and reduction, and prevents oxidation of fats and oils after treatment. It also has the effect of delaying oxidation, reducing the peroxide value, reducing carbides, and at the same time, prevents the generation of carbides in the piping, and is less likely to crack, chip, and maintain easily after installation. It is an object of the present invention to provide a ceramic sphere for treatment, and a device for preventing deterioration of fats and oils using the ceramic sphere.

In order to achieve the above object, the ceramic spherical body for treating fats and oils of the present invention comprises 35 to 55% by mass of silicon oxide, 25 to 45% by mass of aluminum oxide, and 2 to 8% of ferric oxide. Metal oxide fine powder having a particle size of 200 to 300 mesh consisting of 1% to 5% by mass, 1 to 5% by mass of titanium oxide and 1 to 5% by mass of magnesium oxide ⁰ / o; After firing at a temperature of 0 ° C, the fine powder of barley stone crushed into a mesh of 200 to 300 mesh powder 3 to 8 mass ⁰ / o, and the particle size of 200 to 300 Mesh iron (Fe), manganese (Mn), titanium (Ti), calcium (Ca), magnesium (Mg), aluminum (A1), silicon (Si), potassium A mixture of clay minerals or a mixture of clay minerals containing 5 to 15% by mass containing at least five kinds of clay (K) and sodium (Na), and adding water to the resulting mixture, Kneading Then, after forming and drying, it is formed by firing or sintering into a spherical body at a temperature of 150 ° C. or more.

Further, the oil / fat deterioration preventing device of the present invention has a structure capable of creating an environment (forced circulation or convection) in which the ceramic spherical body always collides with the heated oil / fat. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view of the oil / fat deterioration preventing device (circulation type) of the present invention. FIG. 2 is a longitudinal sectional view of the oil / fat deterioration prevention device (circulation type) of the present invention, taken along line AA.

FIG. 3 is a longitudinal sectional view of the cartridge in the oil / fat deterioration prevention device (circulation type) of the present invention, taken along line AA.

FIG. 4 is a diagram showing an example of an installation layout of the oil / fat deterioration prevention device (circulation type) of the present invention.

FIG. 5 (a) shows a plan view of the oil / fat deterioration preventing device (cage type) of the present invention.

FIG. 5 (b) is a cross-sectional view of the oil / fat degradation prevention device (cage type) of the present invention, taken along line BB.

Fig. 5 (c) shows a front view of a device for preventing deterioration of fats and oils (cage type) of the present invention.

FIG. 6 (a) shows a plan view of a use example of the oil / fat deterioration prevention device (cage type) of the present invention.

FIG. 6 (b) shows a cross-sectional view of an example of use of the oil / fat deterioration prevention device (cage type) of the present invention.

FIG. 7 is a schematic diagram comparing the progress of oxidation of fats and oils treated with the fat antioxidant of the present invention and untreated fats and oils.

FIG. 8 shows the far-infrared emissivity curve (solid line) of the ceramic spherical body of the present invention and the far-infrared ray emission curve (dashed line) of the black body.

FIG. 9 is a graph comparing the oil temperature drop and the recovery state after the introduction of the frying seeds when the circulation type oil / fat deterioration prevention device of the present invention is used and when it is not used.

The reference numerals in the above drawings indicate the following.

1 ... oil and fat deterioration prevention device (circulation type), 2 ... lid, 4 ... flange, 5 ... ring, 6 ... supply pipe, 7 ... supply port, 8 ... case,

8 1… Case outer wall, 8 2… Case inner wall, 9 ··· Cartridge, 1 0… Cartridge handling par, 1 1… Cartridge bottom, 1 2… Insulation material, 1 3… Ceramic spherical body, 1 4… Case bottom, 1 5… Inlet, 1 6… Introduction Pipe, 17 ... cartridge stopper, 18 ... flow path, 19 ... cartridge engaging member,

20: Oil and fat deterioration prevention device (cage type), 21: Cage,

2 2… Long hole, 2 3… Split pin or stop pin,

2 4Flyer, 2 6Heater

Detailed description of the invention

The ceramic spherical body for treating fats and oils of the present invention comprises 35 to 55% by mass of silicon oxide, 25 to 45% by mass of aluminum oxide, 2 to 8% by mass of ferric oxide, and 1 to 5% of titanium oxide. Metal oxide fine powder having a particle size of 200 to 300 mesh consisting of 1% to 5% by mass of magnesium oxide and 1 to 5% by mass of magnesium oxide, and calcined at a temperature of 170 to 180 ° C. Fine powder of barley stone crushed into 200 to 300 mesh mesh powder 3 to 8% by mass, and 200 to 300 mesh mesh iron (Fe) and manganese (Mn) , Titanium (T i), calcium (C a), magnesium (M g), aluminum (A 1), silicon (S i), potassium (K), and sodium (Na). 5 to 15% by mass of a clay mineral or a mixture of clay minerals containing at least 5 types of any one of them is mixed, and a small amount of water is added to the obtained mixture, kneaded, molded and dried, and then dried. C and below Formed by firing or sintering spherical body temperature. By baking or sintering at a high temperature for a long time, preferably for 45 hours or more, a hard and tight ceramic spherical body can be obtained.

In the present invention, by using the mixture of the metal oxide, the barley stone and the mixture of the clay mineral or the clay mineral in the above-mentioned specific ratio, far-infrared rays substantially equivalent to a black body are emitted; It is possible to obtain a ceramic sphere capable of emitting a large amount of electrons. In the present invention, the ceramic spherical body is defined by the ratio of the raw material metal oxide, barite, and clay mineral. For this reason, the composition of the raw material does not always match the composition of the manufactured ceramic sphere.

The diameter of the ceramic spherical body is 6 to 15 mm, preferably 8 to 15 mm.

An oil / fat deterioration prevention device (circulation type), which is one embodiment of the oil / fat deterioration prevention device of the present invention, includes an inlet 15 for a fat to be treated and a supply port 7 for a treated fat / oil. A cartridge is arranged inside the oil and fat deterioration preventing device main body in which a flow path communicating between the ports 7 is formed, and the ceramic spherical body is filled in the flow path. .

It is preferable that the ceramic sphere filled in the flow channel has a filling amount of 70 to 95% with respect to the volume of the flow channel.

Another device for preventing fat and oil deterioration (cage type) of the present invention is that a thin box-type cage is formed by using a stainless steel plate having a number of long holes formed vertically and a ceramic box is provided in the cage. A plurality of ceramic spheres having a diameter larger than the width of the long hole.

In the present specification, “deterioration of fats and oils” means not only oxidation of fats and oils but also degradation of any fats and oils that occur during use of fats and oils such as decomposition and polymerization, particularly when frying. Further, “prevention of deterioration of fats and oils” does not mean completely preventing deterioration of fats and oils, but means delaying or reducing deterioration of fats and oils.

"Ceramic spherical body"

The ceramic spherical body of the present invention comprises 35 to 55% by mass of silicon oxide, 25 to 45% by mass of aluminum oxide, 2 to 8% by mass of ferric oxide, and 1 to 5% by mass of titanium oxide. And 1 to 5% by mass of magnesium oxide After baking the fine powder of metal oxide with a diameter of 200 to 300 mesh and maltstone at a temperature of 170 to 180 ° C, the particle size of 200 to 300 mesh Along with the fine powder of barley stone obtained by crushing into powder of about the size of a chute, iron (F e) having a particle size of 200 to 300 mesh, Manganese (Mn), titanium (Ti), calcium (Ca), magnesium (Mg), aluminum (A1), silicon (Si), potassium (K), sodium (Na) ), A clay mineral or a mixture of clay minerals, containing at least 5 kinds of the above, in a ratio of 3 to 8% by mass of maltstone, and 5 to 15% by mass of the mixture of the clay minerals or clay minerals. The mixture was mixed to give a mass of 100% by mass and uniformly dispersed, and a small amount of water was added to the obtained mixture, kneaded, and dried by molding. that's all It is a sphere with a particle size of 6 to 15 mm obtained by sintering at the above temperature for a long time, especially for 45 hours or more.

By producing in this way, it is possible to obtain a ceramic spherical body that can further promote activation and ionization of the fat or oil to be treated.

Here, barley stone is a super-porous far-infrared radioactive natural mineral (quartz porphyry, official mineral name, granite porphyry), which has long been known as a remedy for skin diseases and wounds in China. ) comprising its general _{composition, Si 0 2 69.76%, Ti0} 2 0.30%, A1 2 0 3 14.01%, FeO 1.40%, Fe 2 0 3 1.29%, 0.02% MnO, MgO 3.55%, CaO 2.00%, Na ₂ 0 3.16%, K ₂ 0 3.19%, PO ₅ 0.26%, H ₂ 0 1.06%. However, because it is a natural quartz porphyry, its composition varies depending on the place of origin.

The ceramic spherical body is put into the fat or oil to be treated and brought into contact with the fat or oil to be treated.More specifically, for example, the ceramic spherical body is connected to a fryer and returned to the fryer after the fat or oil passes through the inside. The above-mentioned container is filled with the ceramic spherical body and arranged so as to be able to collide with the flowing oil and fat. In another embodiment, the ceramic spherical body is contained in a cage. By filling the top of the fryer, especially the top of the heater, the ceramic spheres can be arranged so as to be able to collide with the flowing fat by utilizing the thermal convection of the fat. Unlike conventional ceramic spherical bodies for fats and oils that are simply put into the oils and fats to be treated, by arranging in this way, the collision between the fats and oils to be treated and the ceramic spherical bodies is effective. As a result, the ceramic spherical body of the present invention can further promote the activation and ionization of the fats and oils to be treated, and exert a greater effect.

More preferably, in the present invention, the ceramic spherical body is filled in a flow path of the oil to be processed formed in the device for preventing deterioration of oil and fat described below, and the oil and fat to be processed and the ceramic spherical body are filled. Collide.

The filling amount of the ceramic spherical body is 5 times the volume of the flow path of the oil to be treated or the volume of the cage formed in the main body of the container for introducing the oil to be treated or the apparatus for preventing deterioration of the oil or fat. 5 to 95% is preferred. In this way, by filling the ceramic spherical body with a margin with respect to the volume of the container or the channel or the cage, when the oil to be treated is introduced into the channel or the container or the cage, The ceramic spheres float in the flow path or cage due to oil pressure or thermal convection, and irradiate the treated oil and fat with far-infrared rays and collide with the ceramic spheres or the flow path or cage inner wall. The ceramic spheres emit electrons due to the vibration of the ceramic spheres that occur when they are fired, and the emission of these electrons exerts effects such as activation and ionization of the fats and oils to be treated, which will be described in detail later. You.

"A device for preventing oil and fat deterioration"

FIGS. 1, 2 and 3 show an example of the oil / fat deterioration prevention device (circulation type) 1 of the present invention. The oil / fat deterioration prevention device 1 has a flow path communicating between an inlet 15 for introducing the oil / fat to be treated and a supply port 7 for discharging the oil / fat after treatment. The ceramic spherical body is arranged in the flow passage in the formed body for preventing deterioration of fats and oils.

The oil to be processed flows through the flow path 18 inside the cylindrical case 8 formed in the main body 1 of the deterioration prevention device, and the oil and fat passing through the flow path 18 inside the cylindrical case 8 is supplied with the oil to be processed. Distributes to mouth 7.

A cylindrical introduction pipe 16 is protruded from an outer surface of the side wall of the cylindrical case 8 into an introduction port 1.5 provided at a lower end of a side wall of the cylindrical case 8 of the oil / fat deterioration preventing device main body 1 so as to remove an oil / fat (not shown). The pipe (upstream side) is connected to the inlet pipe 16 through a joint such as a socket.

At a supply port 7 provided at the upper end of the side wall of the cylindrical case 8, a cylindrical processing oil / fat supply pipe 6 is protruded from the outer surface of the side wall of the cylindrical case 8, and a fat / oil pipe (not shown) (downstream side) is connected. Connected to the supply pipe 6 through a joint such as a socket.

The upper end opening of the cylindrical case 8 is covered with the lid 2. The lid 2 is formed of a disc-shaped plate, has three force-projecting portions at an angular interval of 120 degrees around the center thereof, and has a 囬 portion at its tip. The cylindrical case 8 includes an inner wall 8 2 and an outer wall 8 1, and a flange 4 is fixed to an upper end of the inner wall 8 2, and the flange 4 has an angle of 120 degrees around its center. It has a three-point projecting part with an interval, and has a 00 part at its tip, and a set screw 3 is mounted in the recess so that the tip can pivot about a horizontal axis. Then, the set screw 3 is rotated to engage with the concave portion of the lid 2, and the upper part of the set screw 3 is rotated around the vertical axis to be fixed.

At the upper end of the flange 4, a packing groove (O-ring) 5 of rubber or the like is buried by forming a concave groove in a circumferential shape, and oil and fat from between the cylindrical case 8 and the lid 2 is formed. To prevent leakage.

The lower end of the cylindrical case 8 is closed by a closed bottom 14. A heat insulating material 12 is provided between the inner wall 82 and the outer wall 81. At a lower end side of the inner wall 82 and immediately above the inlet 16, a force storage stopper 17 is fixed to a circumferential surface thereof. The cartridge stopper 17 may be in the form of a ring or a projection.

A cylindrical cartridge engaging member 19 is fixed to the lid 2 at the cylindrical case 8 side, and a side wall of the cartridge engaging member 19 is perforated.

In the flow path 18 of the deterioration prevention device, a cartridge 9 which is detachable and through which the fat or oil to be treated can pass is disposed, and the ceramic spherical member is provided in the cartridge 9. Fill the body. The cartridge 9 has a cylindrical shape, an upper end is opened, and a perforated bottom is provided. A cartridge handing par 10 is provided in an upper part of the cartridge. The cartridge 9 is placed on the cartridge stopper 17, and when the lid is covered, the cartridge engaging member 19 is fitted to the upper end of the cartridge 9. The cartridge 9 is fixed by the cartridge stopper 17 and the cartridge engaging member 19. The oil to be treated enters the cylindrical case 8 from the inlet 16 of the oil and fat deterioration preventing device of the present invention, passes through the hole at the bottom 14 of the cartridge 9, passes through the inside thereof, and The cartridge engaging member 19 of the lid 2 passes through the opening of the cover 2, exits from the hole of the cartridge engaging member to the cylindrical case 8, and is prevented from deteriorating from the supply port 7 of the treated oil and fat. Exit the shut-off device.

The cartridge 9 may be provided with a spacer or a protrusion on the outer side of the upper end to prevent lateral displacement.

Further, in the above-described deterioration preventing device, the lid 2 and the case 8 are fixed at three places, but may be fixed at, for example, five places as appropriate. The oil / fat deterioration prevention device of the present invention can be used, for example, by connecting it between circulation line pipes as shown in FIG.

As another fat and oil deterioration preventing device of the present invention, there is a cage type fat and oil deterioration preventing device 20 using a ceramic spherical body. This cage type oil / fat deterioration prevention device is a deterioration prevention device suitable for a small fryer of about 15 to 30 liters.

FIG. 5 is a view showing an embodiment of a cage-type oil / fat deterioration preventing device using a ceramic spherical body according to the present invention, wherein FIG. 5 (a) is a plan view and FIG. 5 (b) is a view of FIG. 5 (a). b — Sectional view at line b, FIG. 5 (c) is a front view. As shown in the figure, a cage-type oil / fat deterioration prevention device 20 using a ceramic spherical body according to the present embodiment has a thin rectangular shape using a stainless steel plate having a number of long holes 22 formed therein. A box-shaped cage 21 is formed and filled with a ceramic spherical body 13 having an antioxidant effect on fats and oils. The thin box-shaped cage 21 is configured such that the upper and lower covers can be opened and closed in a sliding manner. After the ceramic spherical body is filled in the cage, fixing means such as a split pin are used. Or secure the upper and lower cages with stop pins 23. A chain is attached to the stop pin via a link, and is used to take out the grease deterioration prevention device from the fryer during maintenance. If the length of the lower hole is slightly larger than the length of the upper hole, the frying from the upper hole becomes easier to get out of the case.

The width of the long hole 22 must be large enough to prevent the ceramic spherical body 13 from escaping, and it is necessary that the fat and oil can sufficiently pass through. For example, the width of the ceramic spherical body 13 If the minimum diameter is about 8 mm, the width of the long hole 22 is preferably about 5 to 6 mm. In addition, it is preferable that the long holes 22 are arranged so that the longitudinal direction thereof is parallel to the longitudinal direction of the device, and the staggered arrangement. FIG. 6 shows the present embodiment configured as described above. FIG. 6A is a plan view, and FIG. 6B is a cross-sectional view. In the case of a small fryer, the cage type grease deterioration prevention device is generally used on a heater or, if a net is laid, on it. In the case of a large flyer, use the grease deterioration prevention devices side by side, but do not use them vertically. In FIG. 6, when heated by the heater 26, the oil and fat 25 in the fryer 24 is heated and convectively circulates in the fryer 24. The convection of the oil 25 enters the cage 21 through the slot 22 on the lower surface of the cage 21, passes between the ceramic spherical bodies 13, and is released from the slot 22 on the upper surface. At that time, the ceramic spherical body 13 emits far-infrared rays to stimulate the fat molecules, causing vibrations in the fat molecule aggregate. By adopting this configuration, when frying is performed with a fryer, the frying powder is deposited on the ceramic spherical body by the convection of oil passing from the long hole in the lower surface of the cage to the long hole in the upper surface. Does not accumulate. Therefore, the antioxidant action of the ceramic spheres lasts for a long time.

The device for preventing deterioration of fats and oils is merely an example, and it is apparent that many modifications can be made by those skilled in the art within the scope of the claims.

1. Action of the ceramic spherical body of the present invention

The present inventor considers the action of the ceramic spherical body of the present invention as follows, but the present invention is not restricted by this action mechanism.

When fats and oils, particularly vegetable fats and oils, are passed through the fat and oil deterioration prevention device of the present invention, the fat and oil molecules are stimulated by the far infrared rays radiated from the ceramic spheres that have come into contact with the vegetable fats and oils, and the fat and oil molecules are stimulated. Causes vibrations inside. Fats and oils with a complex structure, such as polymer fats and oils, absorb this far-infrared energy and turn into small molecules.

Also, due to the vibration caused by the collision between the ceramic spherical body and the oil or fat, The atoms are excited, electrons are generated, and the generated electrons cause part of the fat and oil molecules to ionize to generate OH- ions and O _2- (superoxo-dion). The free radicals are non-radicalized and stabilized by the reaction between the generated ions and the fat molecules.

The stabilizing mechanism is schematically shown in Fig. 7.

In this way, the ionized and activated oils and fats after the treatment are supplied to a flyer or the like via a supply port provided at an upper portion of the main body of the oil and fat deterioration preventing device, and are used for use. You. The oil and fat treated by the oil and fat deterioration prevention device in the process of flowing through the pipe not only prevents the generation of oxides in the pipe and flyer, but also the oxidized oil that has already accumulated on the pipe and flyer. It has the effect of removing substances and carbides as well.

2. Production example of ceramic sphere

A total of 83% by mass of fine powder of metal oxide consisting of silicon oxide, aluminum oxide, ferric oxide, titanium oxide and magnesium oxide, 83% by mass; After sintering at a temperature of up to 180 ° C, the particle size is 200 to 300, the fine powder of barley stone ground into a mesh 5 mass ⁰ / o, and the particle size is 200 to 300 Mesh iron (F e), manganese (M n), titanium (T i), calcium (C a), magnesium

(Mg), aluminum (A1), silicon (Si), potassium (K), and sodium (Na), a mixture of clay minerals containing at least five of them. %, Water is added to the resulting mixture, kneaded, molded and dried, and then calcined at a temperature of 150 ° C. or more for about 48 hours to obtain a ceramic spherical material having the following composition. I got a body.

Since this composition is based on qualitative analysis with a fluorescent X-ray analyzer, it is considered that there is an error in the accuracy. Also, for reference, The result is shown in the form of oxide.

Qualitative analysis with fluorescent X-ray analyzer

(Analysis results by detected elements and X-ray intensity)

(% By mass)

Conversion of the above results as oxides

Table 2 (% by mass)

The obtained ceramic sphere was substantially non-porous (porosity is considered to be about 2-3%).

Fig. 8 shows the far-infrared radiation curve (solid line) and the far-infrared radiation curve (dashed line) of the obtained ceramic spherical body at a surface temperature of 25 ° C, and the black body. Using a Fourier transform spectrophotometer, the black body and the ceramic spherical body of the present invention were kept at 25 ° C, and the emission spectrum of both wavelengths of 4.0 to 1000 μm was measured. . WX str- ¹ is the radiant intensity, that is, the value obtained by dividing the radiant flux emitted from a point source into a small solid angle in a certain direction by the solid angle, and WX str— i X cm ² is the radiant power, In other words, it indicates the value obtained by dividing the radiation intensity in a certain direction from the micro surface of the radiation source by the orthographic area in that direction.

The compressive strength of the ceramic sphere is measured using a uniaxial compression tester (load capacity: The measurement was performed using 5 samples with a diameter of 1.6 cm at 5 tonf). The maximum compressive strength is 66.77.7 kgf, the minimum compressive strength is 55.39.7 kgf, and the average compressive strength is 61.72.1 kgf. Was done.

Safety test

A leaching test was performed to examine the safety of the ceramic spheres of the present invention. Using salad oil (soybean and rapeseed mixed oil) as the leaching solution, according to the standard method for analyzing fats and oils (JISK 0101 Industrial Water Test Method), 200 milliliters of the above oil at 200 ° C was used. g of ceramic spheroids (10 times the prescribed amount) was immersed for 10 hours and leached by gentle stirring every 30 minutes. Lead, cadmium, chromium, arsenic No metal of mercury, aluminum, silicon, or manganese was detected, indicating that the ceramic spherical body of the present invention is safe for humans.

In the following performance tests, tests were performed using the above-mentioned ceramic spheres as an example. However, this exemplification is for explanation, and the ceramic sphere of the present invention is limited by this exemplification. Not o

3. Performance test of oil and fat deterioration prevention device of the present invention

A. Oil and fat deterioration prevention device of the present invention (circulation type)

The above-mentioned ceramic spherical body (300 g) was charged into the stainless steel oil / fat deterioration prevention device (circulation type) of the present invention, and this device was connected to an oil pipe of a food production plant (Atsuage production line). Using 220 liters of rapeseed oil, the peroxide value, oxidation, viscosity, and color value of the oil were measured over time at 180 ° C. Table 3 shows the measurement results. Table 3

From the above results, the acid value of oil after treatment for 55.5 hours using the oil / fat deterioration prevention device (circulation type) of the present invention, viscosity at 25 ° C (c ST), color (Gardner method) ) Is equivalent to the value of oil and fat after 16.5 hours when the device is not used, and the peroxide value (meqg) is as follows when treated with the deterioration prevention device (circulation type) of the present invention. Even after 5.5 hours, the oil did not differ from the new oil, whereas the peroxidation value of the oil when not used increased significantly. From this, it can be seen that the use time of oil was extended about three times by the oil and fat deterioration preventing device of the present invention.

The decrease in the peroxide value, acid value, viscosity and color value clearly indicates that the oil treated with the ceramic spheres of the present invention is activated. In particular, the effect of suppressing the peroxide value of oil is prominent when the ceramic spherical body of the present invention is used for a long time.

In addition, the use of the oil / fat deterioration prevention device (circulation type) of the present invention not only prevented the oxidation of oil during use, but also reduced the amount of oil accumulated on the flyer before use. The oxide having a thickness of about 0 mm is reduced to a thickness of about 3 to 5 mm in two days after use, and the ceramic spherical body of the present invention is also effective in removing the deposited oxide. Furthermore, it was found that the oil / fat degradation prevention device of the present invention can also remove carbides that have adhered to facilities such as the piping connecting the flyer and the filter and the internal walls of the filter. Was. That is, the present invention Immediately after the oil / fat deterioration prevention device was installed, about one-third of the oil / fat carbide was blocked on the inner wall of the piping, but after about one month of use, most of the carbon was removed and some of the equipment was removed. The carbide stuck to the inner wall of the filter was peeled off and the surface of the main body was partially exposed.

From the above results, it was confirmed that the use of the oil / fat deterioration prevention device (circulation type) of the present invention was extremely effective in removing carbides in pipes and preventing generation of oxides.

B. Performance test of the grease deterioration prevention device (circulation type) and grease deterioration prevention device (cage type) of the present invention using a hand-fryer

In order to test the performance of the oil / fat deterioration prevention device (circulation type, cage type) of the present invention, frying was performed using an oil / fat using them and, as a control, an oil / fat (hereinafter referred to as ordinary oil) not using them. Then, the following items were compared.

(1) Test content a. Acid value, color, viscosity, degree of frying, oil exchange period b. Oil temperature drop and recovery state after fry seeds are introduced c. Soil condition of fryer, cleaning time, etc. d. Color, uneven color, fragrance, amount of oil, how to burn, texture, taste, etc. (15 blinds by 15 panelists)

In each case, use a 40 liter fried fryer, clean the fryer at the time of oil change, and use a soybean sizing oil as the oil. g of ceramic spheres were filled. A 180 g ceramic sphere was used for the circulation type oil / fat deterioration prevention device.

Table 4 shows the possible use period, operating hours, types and number of fried seeds for oil. Table 4 Possible use period of oil, operation time, number of fried species

Tables 5 and 6 show the changes in temperature after the fryer was put into the fryer. Table 5 shows the comparison between the oil / fat deterioration prevention device (circulation type) and ordinary oil, and shows the average data of 6 times. The results are shown in a bar graph in FIG. X axis is

The time from the start of the introduction of the fried seeds is expressed in minutes, and the Y axis is the oil temperature in degrees Celsius. Table 6 compares oil and fat deterioration prevention devices (circulation type and cage type) (one data).

Table 5 Result of temperature after fried seeds (average of 6 times)

Starting temperature After 1 minute After 2 minutes After 3 minutes After 4 minutes After 5 minutes After 6 minutes After 7 minutes After 8 minutes Prevention of oil and fat deterioration 163.8 158.6 157.3 157.7 159.3 159.8 159.6 161.0 162.2 Equipment (circulator)

Normal oil 171.1 161.1 158.4 157.2 157.4 157.9 158.8 160.5 159.6 Table 6

Table 7 shows A. Acid value, B. Color (Robobind method, 1 cm cell Y), C. Color (Robobind method, 1 cm cell R), D. Viscosity (25 ° C, cSt) . In the table, one indicates that the test was not performed. Table 7 Acid value, color, viscosity ゥ

Ordinary oil grease deterioration prevention device grease deterioration prevention device

(Circulation type) (Cage type)

A B C D A B C D A B C D

1 statement 0.16 2.6 0.7 57.35 0.15 3.5 0.8 57.02 0.13 1.5 0.3 57.03

2 statement 0.26 5.0 0.9 60.60 0.24 8.0 1.3 59.86 0.20 3.1 0.8 59.11

3 Big 0.40 9.0 1.4 63.56 0.38 14.0 2.2 62.40 0.34 7.0 1.2 61.73

4 Big 0.50 20.0 2.8 66.70 0.47 10.0 1.6 64.23

5 statement 0.50 22.0 2.7 0.56 13.0 2.1 64.97

6 statement 0.57 28.0 3.2 66.44 0.69 17.0 2.4 67.49

7 statement 0.75 40.0 4.1 68.01 0.81 22.0 2.8 68.96

8 0.91 40.0 5.0

9 Say 0.97 40.0 5.4 69.27 Table 8 shows the condition of dirt and cleaning of the flyer.

Table 8 Degree of contamination of the flyer and cleaning status

Table 9 shows the evaluation of fried products by tasting fried chicken by 15 panelists. Fried chicken was fried using a circulation-type oil / fat deterioration prevention device and normal oil on the second day, and the average value was evaluated using the blind method, with 5 items being the highest for each item. .

Table 9 Fried condition by questionnaire (blind method)

Normal oil only Oil / fat deterioration prevention device (circulation type) Frying color 4. 1 4.1

Uneven color 3.5 5.4.8

4.0 4.3

Oil breakage 3.0 3.8

How to pass the fire 4.1.4.2.

Texture 3. 8 4. 7

Taste 3. 9 4. 3

Average 3.8.4 4. 3 result

The above test revealed the following.

As shown in Table 4, in the case of ordinary oil, oil stains began to adhere badly to the product in three days and oil stains occurred, and the test was terminated. For the oils using (type) and (cage type), the days were extended to 9 days and 7 days, respectively, and the quality of the fried products could be used without any problem.

The temperature of the fryer using an oil / fat deterioration prevention device (circulation type) was lowered by 10 ° C from the specified value, and compared with ordinary oil. However, there was no problem with the quality of the fried product. There was a tendency. The cage type fat / oil deterioration prevention device also had the same tendency as the circulation type. This is probably because, as can be seen from Tables 5 and 6, the oil and fat is activated by the oil and fat deterioration preventing device, and the temperature efficiency is increased. According to Tables 5 and 6, the temperature difference after 8 minutes with respect to the temperature at which the deep-fried seeds were put into the fryer was 13 to 5 ° C when the ceramic spherical body of the present invention was used. However, there is no temperature difference in the average value, but when ordinary oil is used, the temperature difference is _10 to 20 ° C, and there is a difference of about 110 ° C from the average value. As described above, it is considered that the use of the ceramic spherical body of the present invention improves the thermal conductivity, so that the temperature recovery is accelerated.

Also, when comparing the oil in the fryer using the circulation type device with the fryer using normal oil, the amount of oil in the fryer using normal oil increased. The bottle was discarded and the height was set to the same level as the fryer using the circulation type device.At that time, when the product was sampled, if normal oil was used, it would appear that the gravy had escaped. It had a good texture.

In the case of a circulation type oil / fat deterioration prevention device, a filter was used in combination, but a 50-micron mouth and a 10-micron stainless steel net were alternately used. As a result, all floating debris was removed and did not adhere to the product. The oil was also transparent, and the heater was partially visible until the 9th day.

When the normal oil was discarded on the third day, the oil in the flyer using the circulation type device was also drained and stored, and the flyer was cleaned.The flyer using the normal oil was black. The frying was adhered to the bottom of the fryer and the net, but no fouling was found on the fryer using oil that passed through the circulation type device from below the oil level. Furthermore, when compared to the time when the frying was started, the carbon area that had become darker near the heater due to the increased surface area of the sensor rod, and the carbide that did not fall off even after rubbing had begun to peel off. Was confirmed.

The fryer was also cleaned using a cage-type grease deterioration prevention device at the end of the test.French residue for seven days remained at the bottom, but it remained brown and carbonized black. Because it did not stick to the flyer, it could be easily removed with just water and it was easy to clean the oil level from below.

Although the treatment of edible oil has been mainly described above with respect to the ceramic spherical body for fat and oil treatment and the apparatus for preventing deterioration of fat and oil of the present invention, the treated fat and oil according to the present invention is not limited to edible fat and oil. It can be used for other mineral oils such as heavy oil, kerosene, gas oil and gasoline. Effects of the present invention

With the configuration of the present invention described above, the ceramic spherical body for treating fats and oils of the present invention has the following effects.

By contacting the ceramic spherical body and the device for preventing deterioration of fats and oils of the present invention with the fats and oils to be treated, it is possible to ionize and activate the fats and oils to be treated. It has grown about three times more than before. In the case of a circulation type oil / fat deterioration device, Because of the circulation, frying debris is removed to the outside without carbonization, reducing the time and labor required to clean the flyer, which can contribute to improving productivity and improving the working environment.

Further, by treating with the ceramic spherical body and the fat and oil deterioration preventing device of the present invention, the treated fat and oil have a fine molecular group (cluster) of fat and oil, and the viscosity of fat and oil during use is high. Because of this, the oil from the food was drained well. For example, when used for thick fried food, it could be processed into a product that fried quickly.

In addition, by using the oil / fat deterioration prevention device (circulation type, cage type) of the present invention, the thermal conductivity of the oil / fat is improved, so that it is possible to produce at a lower temperature than normal temperature, and to reduce fuel consumption. If the temperature range is set as the standard, frying time can be shortened and production efficiency can be improved.

Claims

The scope of the claims

1. oxidation Kei containing 3 5-5 5 wt%, aluminum oxide 2 5-4 5 wt%, ferric 2-8 wt% oxide, titanium oxide 1-5% by weight and an acid magnesium 1-5 mass ⁰ / . After sintering at a temperature of 170 to 180 ° C with a metal oxide fine powder having a particle size of 200 to 300 mesh, a particle size of 200 to 300 mesh bakuhanseki fine紛末3-8 mass ground to ^_0/0, the particle size 2 0 0-3 0 0 mesh iron (F e), manganese

(M n), titanium (T i), calcium (C a), magnesium (M g), aluminum (A1), silicon (S i), potassium (K), and sodium (Na) 5 to 15% by mass of a clay mineral or a mixture of clay minerals containing 5 or more of the above, water is added to the obtained mixture, kneaded, and molded and dried. A ceramic sphere formed by firing at a temperature to prevent oil and fat deterioration.

2. An oil / fat deterioration prevention device flow path having an inlet for treated oil / fat and a supply port for treated oil / fat, wherein a flow path for treated oil / fat communicating between the introduction port and the supply port is formed. An oil / fat deterioration preventing device characterized by being filled with the ceramic spherical body described in the above.

3. The fat or oil according to claim 2, characterized in that the fluid or fat is provided with a cartridge which is self-removable and filled with the ceramic spherical body according to claim 1 and through which the fat or oil to be treated can pass. Deterioration prevention device.

4. The ceramic spherical body according to claim 1, wherein a thin box-shaped cage is formed by vertically using a stainless steel plate in which a number of long holes are formed, A cage-type oil / fat deterioration prevention device characterized by being filled with a number of ceramic spheres having a diameter larger than the width of