JP2015027443A - Fryer radio wave generation device, and cooking method for food material using fryer radio wave generation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the taste of deep-fried food and more effectively suppress oil oxidation and degradation by irradiating a food material with radio waves, in a fryer radio wave generation device for generating radio waves in an oil tank and a cooking method using this device.SOLUTION: A fryer radio wave generation device 2 installed in a fryer for deep-frying a food material housed in an oil tank comprises: a pair of sheet electrodes 21 and 22 which are disposed with a space therebetween; and an oscillator which passes a high-frequency current through the sheet electrode 21. The pair of sheet electrodes 21 and 22 are installed in the oil tank 11 of the fryer 1 so as to be electrically insulated from the oil tank, and the sheet electrode 22 is connected to the ground. When the high-frequency current is passed through the sheet electrode 21 from the oscillator, an oscillating current is induced between the pair of sheet electrodes 21 and 22 thereby generating radio waves, and the food material in the oil tank is cooked while being irradiated with the radio waves.

Description

  The present invention relates to a device for generating radio waves in a fryer and a method for cooking food using the device in deep-fried cooking of food.

It is widely known that by forming a high-voltage electric field in the fryer, the oxidation of oil in the oil tank can be suppressed (see, for example, Patent Documents 1 and 2).
This action refines the cluster, which is a molecule of water or oil, thereby improving heat conduction and increasing the evaporation rate of water, thereby shortening the fly time and lowering the fly temperature. As a result, the oxidation and deterioration of the oil is suppressed, the water in the oil evaporates rapidly, and the generated fine suspended matter settles and solidifies in the lower part without diffusing, making the inside succulent and rolling. You can make fried foods that are fried and crisp.

JP 11-113761 A JP 2002-136430 A

However, since all such devices generate a high-voltage electric field, there is a risk that a cook or the like may be touched by an electrode in the oil tank and get an electric shock.
Especially in deep-fried cooking, the food in the oil tank is scooped up with a metal rake monkey, etc., so there is a possibility that the rake monkey etc. will touch the electrode each time. I was often shocked.

  On the other hand, the applicant of the present application focused on the fact that the food in the oil tank can be irradiated with radio waves to suppress the oxidation or deterioration of the oil and to make a deep-fried food.

  Then, this invention aims at making the taste of the deep-fried food which receives the effect | action improved by generating an electromagnetic wave in the oil tank of a fryer, and suppressing the oxidation and deterioration of oil more effectively. .

  In order to achieve the above object, a fryer radio wave generator according to an aspect of the present invention is an apparatus installed in a fryer for frying and cooking food contained in an oil tank, and is disposed with a gap therebetween. A pair of L-shaped thin plate electrodes comprising a first thin plate electrode and a second thin plate electrode, and an oscillator for passing a high-frequency current through the first thin plate electrode, wherein the pair of thin plate electrodes is the flyer The second thin plate electrode is connected to the ground, and a high frequency current is passed from the oscillator to the first thin plate electrode, thereby a pair of thin plate electrodes. In the meantime, an oscillating current is induced to generate a radio wave, and the food in the oil tank is cooked in a state where the radio wave is irradiated.

  The pair of thin plate electrodes may be attached to the inner wall of the oil tank by the magnetic force of a magnet covered with an insulator.

  Further, the apparatus may further include a measuring unit that measures a current value between the pair of thin plate electrodes, and a first adjusting unit that adjusts the strength of the high-frequency current based on the resistance value measured by the measuring unit. Good.

  Further, it may further include a measuring unit that measures a current value between the pair of thin plate electrodes and a second adjusting unit that adjusts the length of the gap between the pair of thin plate electrodes.

  The pair of thin plate electrodes may be provided with hexagonal through holes.

  The radio wave may be a long wave.

  Moreover, the cooking method of the foodstuff using the radio wave generator for fryer which concerns on another viewpoint of this invention from the fryer provided with the oil tank, and the 1st thin plate electrode and 2nd thin plate electrode which are arrange | positioned at intervals. A pair of L-shaped thin plate electrodes and an oscillator for passing a high-frequency current through the first thin plate electrode, and the pair of thin plate electrodes are electrically connected to the oil tank in the oil tank of the fryer. The second thin plate electrode is a method of cooking food using a fryer radio wave generator connected to the ground, and a high frequency current is passed from the oscillator to the first thin plate electrode. An oscillating current is induced between the pair of thin plate electrodes to generate radio waves, and the food in the oil tank is cooked in a state where the radio waves are irradiated.

  According to the present invention, radio waves are generated in the oil tank, and the food is cooked in a state where the radio waves are irradiated. As a result, the taste of the deep-fried food becomes better, and at the same time, the oxidation / degradation of oil is more effective It is suppressed.

1 is a side sectional view showing a fryer equipped with a fryer radio wave generator according to an embodiment of the present invention. It is an external appearance perspective view which shows the radio wave generator for flyers which concerns on this embodiment. It is an external appearance perspective view which shows the radio wave generator for flyers which concerns on other embodiment of this invention. It is an external appearance perspective view which shows the radio wave generator for flyers which concerns on this embodiment. This is data verifying the effect of a fryer using the fryer radio wave generator according to the present embodiment, and shows the amount of polar compound (TMP). This is data verifying the effect of a fryer using the fryer radio wave generator according to the present embodiment, and shows the amount of polar compound (TMP). The data verifying the effect of the fryer using the fryer radio wave generator according to the present embodiment, and shows the acid value (AV). It is the data which verified the effect by the fryer using the radio wave generator for flyers concerning this embodiment, and shows a peroxide value. It is the data which verified the effect by the fryer using the radio wave generator for fryer concerning this embodiment, and shows trans fatty acid content. It is the data which verified the effect by the fryer using the radio wave generator for fryer concerning this embodiment, Comprising: Umami (content of glutamic acid) is shown. It is a schematic diagram showing the characteristic time domain of water structure and protein dynamics obtained by broadband dielectric spectroscopy (Biophysics 47 (5), 302-308 (2007) "Protein and water dynamics in various spatiotemporal domains" “Hiragi Yagihara, Naoki Shinyashiki, Rio Kita, p. 303. Fig.1 Hierarchical dynamics observed for water and protein in various time / frequency scales of observation by broadband dielectric spectroscopy (BDS)).

Hereinafter, a fryer radio wave generator according to an embodiment of the present invention and a cooking method of food using the apparatus will be described with reference to the drawings.
1 and 2 show a fryer radio wave generator 2 according to an embodiment of the present invention, and a fryer 1 on which the fryer radio wave generator 2 is mounted.
The fryer 1 includes an oil tank 11 that contains food and cooking oil for frying the food, and a heating device 12 that is installed in the oil tank 11 and heats the cooking oil in the oil tank 11.

The oil tank 11 is made of a metal such as stainless steel, and is a tank that can accommodate cooking oil used for fried cooking inside.
The heating device 12 accommodates a heating coil such as a nichrome wire in a metal pipe such as a stainless steel tube, and is driven by electric power supplied from an external power source to heat cooking oil in the oil tank 11.

  The fryer radio wave generator 2 is composed of a pair of thin plate electrodes 21, 22 and a relay device having a built-in oscillator that allows high-frequency current to flow through the thin plate electrode 21, and is housed in the oil tank 11 in a state of being electrically insulated from the fryer 1. Installed.

Each of the pair of thin plate electrodes 21 and 22 is a conductive metal plate bent into an L shape and extends at right angles from the horizontal bottom surface portions 211 and 221 and one side edge portions of the bottom surface portions 211 and 221. Side surface portions 212 and 222.
This L-shape is bent in an R shape with a slightly rounded corner so that electromagnetic induction can occur uniformly in the oil tank 11 in a radial manner.
By adopting such an L shape, radio waves can be generated from both the bottom surface portions 211 and 221 and the side surface portions 212 and 222, so that they are placed between the bottom surface portions 211 and 221 or on the bottom surface portions 221 and 221. It is possible to irradiate radio waves uniformly to foods, and the effect obtained is great.
The pair of thin plate electrodes 21 and 22 are arranged in the oil tank 11 in a form facing each other with a predetermined gap.

Insulators 23 are attached to the pair of thin plate electrodes 21 and 22 at the four corners on the back side of the bottom surface portions 211 and 221, respectively. Further, the insulator 23 slightly protrudes to the outside, so that the fryer radio wave generator 2 can be electrically connected to the bottom surface and the side surface without contacting the members such as the oil tank 11 and the heating device 12. An insulated state is secured.
As the insulating material of the insulator 23, a fluororesin such as polytetrafluoroethylene (for example, Teflon-registered trademark) can be used.

Further, a plurality of hexagonal through holes 2 a are formed in the bottom surface portions 211 and 221 of the thin plate electrodes 21 and 22. By providing the hexagonal through hole 2a, when cooking oil in the oil tank 11 rises from below through the through hole 2a during heating, a spiral flow is produced. And according to this convection, it will be in the state where the cooking oil in the oil tank 11 is always stirred, and the temperature of the cooking oil in the oil tank 11 is hard to fall.
The through hole 2a may also be provided in the side surface portions 212 and 222.

Magnets 3 are attached to the side surfaces 212 and 222 of the thin plate electrodes 21 and 22, respectively, on the surfaces facing the inner wall of the oil tank 11.
The magnet 3 fixes the metal thin plate electrodes 21 and 22 to the inner wall of the metal oil tank 11 by magnetic force.
On the other hand, the magnet 3 is covered with an insulator such as polytetrafluoroethylene (for example, Teflon-registered trademark), thereby electrically insulating the thin plate electrodes 21 and 22 and the oil tank 11. State. Accordingly, the thin plate electrodes 21 and 22 can be fixedly installed in the oil tank 11 while ensuring the insulation between the thin plate electrodes 21 and 22 and the oil tank 11.

The side portions 212 and 222 of the thin plate electrodes 21 and 22 are respectively provided with terminals 41 and 42 for connecting one end of the conducting wires collected in the relay device at one end.
These terminals 41 and 42 are configured as rod-like members that are projected upward and attached to upper portions on one end sides of the side portions 212 and 222. When the fryer radio wave generator 2 is installed in the oil tank 11, it is used for cooking. It can be set as the state which protruded from the oil level by adjusting the amount of oil supply.

The relay device incorporates an oscillator for passing a high-frequency current through the thin plate electrode 21 and a measuring device for measuring the current value between the thin plate electrodes 21 and 22, and is connected to an external power source to supply power to these oscillators and measuring devices. Is supplied.
One end of a conducting wire is connected to the terminals 41 and 42 of the pair of thin plate electrodes 21 and 22, respectively, and the other end is concentrated in the relay device.

In the relay device, the conducting wire connected to the terminal 41 of the thin plate electrode 21 is connected to an oscillator, and a high frequency current flows from the oscillator to the thin plate electrode 21.
On the other hand, the conducting wire connected to the terminal 42 of the thin plate electrode 22 is connected to the ground.
The thin plate electrode 22 is provided with parts and devices for protecting the device, such as a fuse and a current interrupting device, in order to prevent a failure of the device when a large current flows between the thin plate electrodes 21 and 22. May be.

Furthermore, the conducting wire connected to the terminals 41 and 42 is connected to a measuring instrument that measures the resistance value between the thin plate electrodes 21 and 22. This measuring instrument always or intermittently measures the current value or resistance value between the thin plate electrodes 21 and 22 based on the current flowing through the conducting wire.
The oscillator can adjust the intensity of the high-frequency current to keep the current value between the thin plate electrodes 21 and 22 at a predetermined value based on the measurement by the measuring instrument.

  In the fryer radio wave generator 2 configured as described above, when a high-frequency current flows through the thin plate electrode 21, an oscillating current is generated between the pair of thin plate electrodes 21 and 22 which are insulated by being separated by a predetermined gap. To do. The oscillating current generates a radio wave (radio wave), and the radio wave is applied to the food in the oil tank 11.

  In this regard, in this example, it is preferable to use a long wave of 150 kHz or less as the radio wave. By using a long wave, it is not necessary to shield the periphery of the fryer radio wave generator 2 and it is possible to vibrate minutely without adding too much energy to the moisture in the object. The radio wave used in this example is preferably 150 kHz or less, and can be applied to a very long wave, a very long wave, or a very long wave.

  It is apparent from the data shown in FIG. 11 that it is preferable to use a long wave of 150 kHz or less as the radio wave used in this example. That is, according to the data shown in FIG. 11 clarifying the water dynamics by dielectric spectroscopy, it is understood that the frequency band of 150 kHz or less is most suitable for irradiating the ice with ice. Accordingly, when frying and cooking foods and the like that are stored in a frozen state, it is optimal to irradiate the foods and the like with long waves of 150 kHz or less by the fryer radio wave generator 2.

For example, in the case of a high-frequency current of 50 kHz, a long wave (radio wave) accompanied by electromagnetic field vibration accompanied by a polarity change of 50,000 times / second is transmitted. When the electromagnetic field vibration reaches a food material having a dipole, an electrostatic induction phenomenon appears.
By generating a repulsive force by expressing the electrostatic induction phenomenon and keeping the moisture in the food minutely oscillating, the effect of preventing the oil from penetrating into the food, the effect of electrostatic adsorption and the drip and moisture leaching out of the food are fine. The oil splash is suppressed by being condensed and condensed, and the food itself is heated by frictional heat, so that the oil temperature can be lowered by about 10 ° C., and the effect of suppressing the oxidation of the oil can be exhibited. it can.

The repulsive force is influenced by the polarity change in the frequency and adsorbs and repels each other, so that it is difficult for the oil to be adsorbed to the food material, so that the permeation of the oil is suppressed. As for oil splash, if there are many changes in polarity, moisture and oil molecules are subdivided. Since oil clings to the subdivided water, oil splash can be prevented.
Further, when kinetic energy is generated by a change in the polarity of the dipole of the food, the kinetic energy expresses frictional heat, so that the food is heated. Therefore, the heating temperature can be lowered and the oxidation of the oil can be suppressed.

Next, a fryer radio wave generator 5 according to another embodiment of the present invention will be described with reference to FIGS.
The fryer radio wave generator 5 includes a pair of thin plate electrodes 51, 52, a connector 6 that couples the pair of thin plate electrodes 51, 52, and a relay device that incorporates an oscillator that causes a high frequency current to flow through the thin plate electrode 51. The oil tank 11 is housed and installed in a state of being electrically insulated from the fryer 1.

Each of the pair of thin plate electrodes 51 and 52 is a conductive metal plate bent into an L shape, and extends at right angles from the horizontal bottom surface portions 511 and 521 and one side edge portion of the bottom surface portions 511 and 521. Side portions 512 and 522.
This L-shape is bent in an R shape with a slightly rounded corner so that electromagnetic induction can occur uniformly in the oil tank 11 in a radial manner.
By adopting such an L shape, radio waves can be generated from both the bottom surface portions 511 and 521 and the side surface portions 512 and 522, so that they are placed between the bottom surface portions 511 and 521 or on the bottom surface portions 521 and 521. It is possible to irradiate radio waves uniformly to foods, and the effect obtained is great.
The pair of thin plate electrodes 51 and 52 are disposed in the oil tank 11 in a form facing each other with a gap S therebetween.

The pair of thin plate electrodes 51 and 52 has an insulator 23 attached to the back side of the bottom surface portions 511 and 521 thereof. Further, the insulator 23 slightly protrudes to the outside, so that the fryer radio wave generator 5 can be electrically connected to the bottom surface and the side surface without contacting the members such as the oil tank 11 and the heating device 12. An insulated state is secured.
Note that as the insulating material of the insulator 53, a fluorine resin such as polytetrafluoroethylene (for example, Teflon-registered trademark) can be used.

In addition, a plurality of hexagonal through holes 5 a are formed in the bottom surface portions 511 and 521 of the thin plate electrodes 51 and 52. By providing the hexagonal through hole 5a, when cooking oil in the oil tank 11 rises from below through the through hole 5a during heating, a spiral flow is produced. And according to this convection, it will be in the state where the cooking oil in the oil tank 11 is always stirred, and the temperature of the cooking oil in the oil tank 11 is hard to fall.
The through hole 5a may also be provided in the side portions 512 and 522.

  The bottom plate portions 511 and 521 of the thin plate electrodes 51 and 52 are provided with a plurality of screw-fixing through holes 5b to be connected to and attached to the connector 6. The thin plate electrodes 51 and 52 and the connector 6 can be connected by connecting the screw 5c to the through-hole 5b and the through-hole 6a of the connector 6 and fastening them.

The side portions 512 and 522 of the thin plate electrodes 51 and 52 are respectively provided with terminals 71 and 72 for connecting one end of the conductive wires collected in the relay device at one end.
These terminals 71, 72 are configured as rod-like members that protrude upward and are attached to the upper portions of one end sides of the side portions 512, 522. When the fryer radio wave generator 5 is installed in the oil tank 11, It can be set as the state which protruded from the oil level by adjusting the amount of oil supply.

The connector 6 is attached to the back side of the pair of thin plate electrodes 51, 52, supports the thin plate electrodes 51, 52 on the heating device 6 in the oil tank 11, and connects the pair of thin plate electrodes 51, 52. .
The connector 6 is a rectangular thin plate made of an insulating material such as a fluororesin such as polytetrafluoroethylene (for example, Teflon-registered trademark), and has a plurality of through holes 6a. Here, the through-hole 6a has a hexagonal shape like the through-hole 5a and causes convection in the oil tank 11 and also serves as a screw-fastening hole.

In the connection of the pair of thin plate electrodes 51 and 52, the screw 5c communicates with the through hole 5b of the thin plate electrode 51 and the through hole 6a of the connector 6 with the thin plate electrode 51 supported from the lower surface side on one end side. The screw 5c is connected and fastened to the through hole 5b of the thin plate electrode 52 and the through hole 6a of the connector 6 with the thin plate electrode 52 supported from the lower surface side at the other end side. The electrodes 51 and 52 are connected to each other.
In addition, since both the through-hole 5b of the thin plate electrodes 51 and 52 and the through-hole 6a of the connector 6 are provided along the connection direction, the thin-plate electrodes 51 and 52 are formed by the arbitrary through-holes 5b and through-holes 6a. By connecting the connector 6 with the screw 5c, the gap S between the thin plate electrodes 51 and 52 can be set to a desired length. Further, since the connector 6 is made of an insulating material, the insulating properties between the thin plate electrodes 51 and 52 and between the heating device 12 and the thin plate electrodes 51 and 52 are secured.

The relay device incorporates an oscillator for supplying a high-frequency current to the thin plate electrode 51 and a measuring device for measuring the current value between the thin plate electrodes 51 and 52, and is connected to an external power source to supply power to these oscillators and measuring devices. Is supplied.
One end of a conducting wire is connected to the terminals 71 and 72 of the pair of thin plate electrodes 51 and 52, respectively, and the other end is concentrated in the relay device.

In the relay device, the conducting wire connected to the terminal 71 of the thin plate electrode 51 is connected to an oscillator, and a high frequency current flows from the oscillator to the thin plate electrode 51.
On the other hand, the conducting wire connected to the terminal 72 of the thin plate electrode 52 is connected to the ground.
The thin plate electrode 52 is provided with parts and devices for protecting the device, such as a fuse and a current interrupting device, in order to prevent a failure of the device when a large current flows between the thin plate electrodes 51 and 52. May be.

Furthermore, the conducting wire connected to the terminals 71 and 72 is connected to a measuring instrument that measures the resistance value between the thin plate electrodes 51 and 52. This measuring instrument constantly or intermittently measures the current value or resistance value between the thin plate electrodes 51 and 52 based on the current flowing through the conducting wire.
Based on the measurement by this measuring instrument, the oscillator can adjust the strength of the high-frequency current so as to keep the current value between the thin plate electrodes 51 and 52 at a predetermined value.

  In the fryer radio wave generator 5 having the above configuration, when a high-frequency current is passed through the thin plate electrode 51, an oscillating current is generated between the pair of thin plate electrodes 51 and 52 insulated by the gap S. The oscillating current generates a radio wave (radio wave), and the radio wave is applied to the food in the oil tank 11.

  In this regard, in this example as well, it is preferable to use a long wave of 150 kHz or less as the radio wave, as in the flyer radio wave generator 2. By using a long wave, it is not necessary to shield the periphery of the fryer radio wave generator 5 and it is possible to vibrate minutely without adding too much energy to the moisture in the object.

The fryer radio wave generator 5 according to the present embodiment includes a predetermined through hole 5b among the plurality of through holes 5b provided in the thin plate electrodes 51 and 52 and a plurality of through holes provided in the connector 6. The length of the gap S is made variable by screwing a predetermined through-hole 6a of 6a, but other structures may be used.
For example, it is possible to use an insulating support made up of a guide rail whose upper surface is open and an adjustment bolt that is fitted in the guide rail and has a thread groove on the outer peripheral surface.
The adjustment bolt is screwed into the adjustment bolt, and by rotating the adjustment bolt, a support plate that slides in the length direction on the adjustment bolt and the guide rail is attached, and a pair of thin plate electrodes is mounted on the support plate. 51 and 52 are supported. By turning the adjustment bolt and sliding the support plate in the length direction of the adjustment bolt and the guide rail, the pair of thin plate electrodes 51 and 52 can be moved toward and away from each other. Thus, a gap S having a desired length can be provided between the pair of thin plate electrodes 51 and 52.
Note that such a support is operable based on the control of the relay device, and the length of the gap S is set to keep the current value between the thin plate electrodes 51 and 52 at a predetermined value based on the measurement by the measuring instrument. It may be possible to adjust the height.

Moreover, in the above flyer radio wave generator 2 (5) according to the present embodiment, the direction in which the L-shaped thin plate electrodes 21 (51) and 22 (52) are attached may be arbitrarily changed. That is, in the flyer radio wave generator 2, the thin plate electrodes 21 and 22 are arranged so that the bottom surface portions 211 and 221 face the bottom surface in the oil tank 11 and the side surface portions 212 and 222 face the side surface in the oil tank 11. You may arrange | position so that the bottom face parts 211 and 221 and the side parts 212 and 222 may face the side surface in the oil tank 11 together. Moreover, the thin plate electrodes 21 and 22 facing each other may be arranged at positions that are line-symmetric or point-symmetric with each other.
Also, the L-shaped thin plate electrodes 21 (51) and 22 (52) may be bent into an arc of a quadrant instead of being bent into an L shape.
In this way, even when the L-shaped thin plate electrodes 21 (51) and 22 (52) are arranged in an arbitrary direction, or when the L-shaped thin plate electrodes 21 (51) and 22 (52) are configured to be curved in an arc shape, the insulation with each other and the oil tank 11 As described above, it is possible to achieve the operation as described above.

Cooking by the fryer radio wave generator 2 (5) according to the present embodiment will be described.
First, the fryer radio wave generator 2 (5) is installed in the oil tank 11 of the fryer 1. At this time, the thin plate electrodes 21 (51) and 22 (52) of the fryer radio wave generator 2 (5) are connected to the insulator 23 (53) and further to the coupler 6 made of an insulating material (of the fryer radio wave generator 5). In some cases, the oil tank 11 is electrically insulated.

Next, cooking oil is put into the oil tank 11, the fryer radio wave generator 2 (5) and the heating device 12 are activated, and the cooking oil is heated.
When the cooking oil reaches a temperature suitable for cooking, the ingredients are put into the oil tank 11.

In this state, a high-frequency current flows from the oscillator to the thin plate electrode 21 (51), thereby causing an oscillating current between the thin plate electrodes 21 (51) and 22 (52) to generate radio waves. The food is irradiated with radio waves.
Inside the food that has been irradiated with radio waves, vibrations of the oscillators that connect water molecules and miniaturization of the clusters occur, and as a result, cooking can be done in a short time, and the surface is fried quickly while confining moisture inside. And can be made delicious. At the same time, the oxidation / degradation of oil is more effectively suppressed.
Furthermore, since the thin plate electrode 22 (52) is connected to the ground, there is no risk of electric shock and it can be used safely.

Below, the effect at the time of cooking foodstuffs was verified with the fryer 1 using the radio wave generator 2 (5) for fryer concerning this embodiment mentioned above.
In this verification, the amount of polar compound (TMP), acid value (AV), peroxide value (PV), trans Fatty acid content and umami taste (glutamic acid content) were evaluated.

The acid value is calculated as follows.
Acid value = A x F x 5.611 / B
A: Titration volume of 0.1 mol / l ethanolic potassium hydroxide solution (ml)
F: Power value of 0.1 mol / l ethanolic potassium hydroxide solution B: Amount of sample collected (g)

The peroxide value is calculated as follows.
Peroxide value (meq / kg) = A x F x 10 / B
A: Titration of 0.01 mol / l sodium thiosulfate standard solution (ml)
F: Strength value of 0.01 mol / l sodium thiosulfate standard solution B: Amount of sample collected (g)

<Cooking method>
In the cooking method 1, squid cartilage fried (frozen, unheated) was cooked for 6 kg for 5 days per day for a total of 30 kg with the fryer radio wave generator 2 activated.
As a comparative example for cooking method 1, in cooking method 2, squid cartilage fried (frozen, unheated) is similarly applied to 6 kg per day for 5 days without activating the fryer radio wave generator 2 (5). Cooked and fried a total of 30 kg.
Then, the oil after being fried every day was collected as a sample in a heat-resistant bottle, stored frozen, and used as an analysis sample.
In addition, 23 liters of edible oil was used, and the amount reduced in the cooking process was supplemented as needed.

<Amount of polar compound (TMP)>
FIG. 5 shows the temporal change of the TMP value in cooking method 1 and cooking method 2.
A: Cooking method 1
B1: Sampling from the inside of the pair of thin plate electrodes 21, 22 in the cooking method 2 B2: Sampling from the outside of the pair of thin plate electrodes 21, 22 in the cooking method 2.

Similarly, FIG. 6 shows the change over time of the TMP value in the cooking method 1 and the cooking method 2,
A: Cooking method 1
B ′: In cooking method 2, it is an average value on the inside and outside (inside oil tank 11) of the pair of thin plate electrodes 21 and 22.

According to this result, it was found that the cooking time can be shortened from 6 minutes to 4.5 minutes and the increase in the TMP value can be suppressed according to the cooking method 2 as compared to the cooking method 1.
Also, there is a difference in the TMP value between the inside and outside of the pair of thin plate electrodes 21 (51) and 22 (52), and the food is disposed inside the pair of thin plate electrodes 21 (51) and 22 (52). It turned out that a high effect can be acquired by cooking.
Furthermore, when the number of days until the TMP value 17.5% at which many subjects who eat the cooked food feel delicious is obtained is 3 days in the cooking method 1, it is 3 days in the cooking method 2, but the pair of thin plate electrodes 21 ( 51) and 22 (52) were estimated to be 6.6 days, and the average value inside and outside the pair of thin plate electrodes 21 (51) and 22 (52) was estimated to be 5.3 days. Therefore, by using the fryer radio wave generator 2 (5) and arranging the ingredients inside the pair of thin plate electrodes 21 (51) and 22 (52) for cooking, the fryer radio wave generator 2 (5) is provided. It was verified that fried cooking can be performed at a TMP value of 17.5% or less, which is 2.2 times longer than when not used and can be eaten deliciously.

<Acid value (AV)>
FIG. 7 shows the acid value (AV) in cooking method 1 and cooking method 2,
A: Cooking method 1
B: Cooking method 2
It is.

  The AV value of the oil on day 0 of the test was 0.17, but the acid value of the oil on day 5 was 0.28 for cooking method 1 and 0.26 for cooking method 2. As a result, it was found that by using the fryer radio wave generator 2 (5), the acid value of the cooked oil can be suppressed by 0.02 (AV), 7.1% compared to the cooking method 1.

<Peroxide value (PV)>
As shown in FIG. 8, the peroxide value was 1.08 for cooking method 2 and 1.21 for cooking method 1. Therefore, it was understood that by using the fryer radio wave generator 2, the peroxide value of the cooked oil can be reduced by 0.13 (PV) and 10.7% compared to the cooking method 1.

<Trans fatty acid content>
As shown in FIG. 9, the trans fatty acid content of the oil on the fifth day of the test increased by 0.17 g / 100 g in cooking method 1 and increased by 0.10 g / 100 g in cooking method 2 using the fryer radio wave generator 2 (5). did. Therefore, it was understood that by using the fryer radio wave generator 2 (5), the trans fatty acid in the cooked oil can be suppressed to 0.07 g / 100 g, which is 9.9% of the cooking method 1.

<Umami (content of glutamic acid)>
Umami was verified as the content of glutamic acid.
As a result of the HPLC analysis, as shown in FIG. 10, when the area values of the glutamic acid peaks found around 6 minutes were compared, it was 159022 for cooking method 2 and 137741 for cooking method 1.
Therefore, it was found that the use of the fryer radio wave generator 2 (5) contained 1.2 times as much glutamic acid as the cooking method 1.

  As described above, it has been clarified that by using the fryer radio wave generator 2 (5), the cooking time can be shortened and eaten longer and more deliciously in the deep-fried cooking of ingredients.

In the above embodiment, the fryer radio wave generator 2 (5) is applied to the fryer 1. However, the fryer radio wave generator 2 (5) is not limited to the use of the fryer 1, and is installed in a refrigerator or a freezer. If it is driven, the effect of maintaining the freshness of the food in the warehouse can be achieved. In other words, the food product is irradiated with radio waves from the fryer radio wave generator 2 (5), and thereby the moisture in the food product is finely vibrated, thereby suppressing the transpiration action, thereby improving the freshness of the food product. Can be maintained.
If the fryer radio wave generator 2 (5) is installed in a coffee maker and a coffee server receptacle, it is effective in maintaining the taste of coffee by irradiating the radio wave with the coffee. .

The present invention can also be applied to medical fields such as specimens, blood, organs, and medicines, and beauty and health fields such as cosmetics and health foods. Specifically, if it contains water such as chemicals and lotions, it can be used to slightly vibrate the water by irradiating radio waves from the fryer radio wave generator 2 (5), thereby maintaining or improving quality. Such effects can be obtained.
Furthermore, freshness preservation, thawing, storage, dripless thawing, dripless frozen foods can be manufactured for home and commercial use, containers, storage warehouses, ships, trains, airplanes, fried food warmers, odenware, vegetables It can also be applied to open showcases for cakes, showcases for cakes, showcases for meat buns and dim sum, gyoza grills, boiled noodles, warm storages, and airplane wagons.

DESCRIPTION OF SYMBOLS 1 Flyer 11 Oil tank 12 Heating apparatus 2 Flyer radio wave generator 2a Through-hole 21 Thin plate electrode 211 Bottom face part 212 Side face part 22 Thin plate electrode 221 Bottom face part 222 Side face part 23 Insulator 3 Magnet 41 Terminal 42 Terminal 5 Flyer radio wave generator 5a Through hole 5b Through hole 5c Screw 51 Thin plate electrode 511 Bottom surface portion 512 Side surface portion 52 Thin plate electrode 521 Bottom surface portion 522 Side surface portion 53 Insulator 6 Connector 6a Through hole 71 Terminal 72 Terminal S Gap

Claims (7)

A device installed in a fryer for frying and cooking ingredients contained in an oil tank,
A pair of L-shaped thin plate electrodes comprising a first thin plate electrode and a second thin plate electrode disposed with a gap therebetween;
An oscillator for supplying a high-frequency current to the first thin plate electrode,
The pair of thin plate electrodes are installed in the oil tank of the fryer so as to be electrically insulated from the oil tank,
The second thin plate electrode is connected to ground,
When a high-frequency current flows from the oscillator to the first thin plate electrode, an oscillation current is generated between the pair of thin plate electrodes to generate radio waves, and the food in the oil tank is cooked in a state where the radio waves are irradiated. To be
The fryer radio wave generator characterized by the above-mentioned. Each of the pair of thin plate electrodes is attached to the inner wall of the oil tank by the magnetic force of a magnet covered with an insulator,
The radio wave generator for a fryer according to claim 1. Measuring means for measuring a current value between the pair of thin plate electrodes;
A first adjusting means for adjusting the intensity of the high-frequency current based on the resistance value measured by the measuring means;
The fryer radio wave generator according to claim 1 or 2. Measuring means for measuring a current value between the pair of thin plate electrodes;
Second adjusting means for adjusting the length of the gap between the pair of thin plate electrodes;
Further having
The radio wave generator for a fryer according to claim 1. The pair of thin plate electrodes are provided with hexagonal through holes,
The fryer radio wave generator according to any one of claims 1 to 4. The radio wave is a long wave,
The radio wave generator for a flyer according to any one of claims 1 to 5. A fryer with an oil tank;
A pair of L-shaped thin plate electrodes composed of a first thin plate electrode and a second thin plate electrode arranged with a gap therebetween, and an oscillator for passing a high-frequency current through the first thin plate electrode, The pair of thin plate electrodes is installed in the oil tank of the fryer so as to be electrically insulated from the oil tank, and the second thin plate electrode is a method of cooking food with a fryer radio wave generator connected to the ground. Because
By causing a high frequency current to flow from the oscillator to the first thin plate electrode, a vibration current is generated between the pair of thin plate electrodes to generate a radio wave, and the food in the oil tank is cooked in a state where the radio wave is irradiated.
A method of cooking foods using a fryer radio wave generator.

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