JPH07147912A - Production of electro-processed food and apparatus therefor - Google Patents

Abstract

PURPOSE:To promote the uniformization of the temperature distribution in an electrically conductive liquid or a food material having fluidity and surely and quickly prepare an electro-processed food heated by electric current and free from uneven heating by putting a food material and an electrically conductive liquid or a food material having fluidity in an insulating container and passing electric current through the food material, etc., under compulsory agitation. CONSTITUTION:A food material A is charged together with an electrically conductive liquid B into an insulating container 1 and the material A is heated by passing electric current while stirring the electrically conductive liquid B to effect the uniformization of the temperature distribution of the liquid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the temperature of a conductive liquid or a fluid food material by stirring and energizing a conductive liquid or food material having fluidity contained in an insulating container. Accurately distributes foods that have been processed by current-heating without unevenness in heating.
The present invention relates to a method and an apparatus for producing an electrically processed food that can be rapidly produced.

[0002]

2. Description of the Related Art Conventionally, a food material having electrical conductivity is housed in a conductive liquid contained in an insulating container under a submerged state, and then the food material is energized through the conductive liquid to produce food. The method for producing electrically processed foods that have been heat-sterilized by the material is
It is publicly known as described in Japanese Patent Publication No. 63-63175, which was previously developed by the present inventor.

[0003]

By the way, in the conventional method for producing electrically processed foods of this type, the conductive liquid containing the food material stored in an insulating container under the submerged condition is left unstirred. Since the food material was stored under the condition, when the food material was subjected to the energization heat treatment by the energizing action applied through the conductive liquid, the conductive liquid gradually increased in temperature due to the heating by the energization, and the conductive liquid of high temperature was conducted. The liquid moves to the upper layer, and the low temperature conductive liquid moves to the lower layer, causing a convection phenomenon, and a temperature difference occurs between the conductive liquid temperature of the upper layer and the conductive liquid temperature of the lower layer. It grows in proportion to the depth. Therefore, when the energizing action is performed in this state, a large amount of current flows in the conductive liquid in the upper layer having a high temperature, and a small amount of current flows in the conductive liquid in the lower layer having a low temperature. Even for food materials stored in a piled state under flooded condition, there is a difference in the energization amount between the upper layer and the lower layer, and it is not possible to heat-treat all the stored food materials under a uniform temperature. There was a problem.

According to the present invention, an electrically conductive liquid or a food material having fluidity is contained in an insulative container while the electrically conductive liquid or food material having fluidity is forcibly agitated to conduct electricity. An object of the present invention is to provide a method for producing an electrically processed food and an apparatus for the same, which promotes equalization of temperature distribution and is capable of producing an electrically processed food that has been subjected to an electrically heated treatment without heating unevenness with accuracy and speed. .

[0005]

In order to achieve the above object, in the method for producing an electrically processed food and the apparatus therefor according to the present invention, the production method according to item 1 is applied, in which the food material is placed in an insulating container with a conductive liquid. After being stored together with the food material, the food material is electrically heated while being agitated to make the temperature distribution of the liquid conductive uniform.

According to the manufacturing method of paragraph 2, after the food material having fluidity is housed in an insulating container, the food material having fluidity is stirred to equalize the temperature distribution of the food material. On the other hand, the food material is heat-treated by electric current.

In addition, the manufacturing apparatus of the third item is arranged such that the food material and the conductive liquid or the food material having fluidity are housed in an insulating container in which electrodes are arranged on opposite surfaces, and Is provided with a stirrer for stirring the conductive liquid or the food material having fluidity.

[0008]

According to the manufacturing method of the first aspect of the present invention, after the food material is stored under the flooded state in the conductive liquid contained in the insulating container having the pair of electrodes on the opposite surfaces, , The stirring device is started at the same time when electricity is applied between the pair of electrodes.

Then, the food material and the conductive liquid contained in the insulating container are both energized and heated by the Joule heat generated by the energizing action flowing between the pair of electrodes through the conductive liquid, and the food material is heated. As the temperature and the conductive liquid temperature rise, the conductive liquid temperature of the upper layer becomes higher than the conductive liquid temperature of the lower layer due to the convection phenomenon.

However, since the conductive liquid is forcibly stirred in the insulating container by the stirring device,
The high temperature conductive liquid of the upper layer and the low temperature conductive liquid of the lower layer are surely stirred and mixed, and the temperature distribution of the entire conductive liquid is equalized.

Therefore, since the temperature difference of the contained conductive liquid is almost eliminated and the temperature becomes substantially equal, the current flows in all the conductive liquid substantially uniformly and the food material is heat-treated by Joule heat. It is possible to accurately manufacture an electrically processed food without uneven heating.

According to the manufacturing method of the second aspect of the present invention,
After the food material having fluidity is housed in an insulating container having a pair of electrodes arranged on the opposite surface, electricity is applied between the pair of electrodes and simultaneously the stirring device is started.

Then, the fluid food material contained in the insulating container is electrically heated by the Joule heat generated by the energizing action flowing between the pair of electrodes, so that the temperature of the fluid food material is increased. As the temperature rises, the temperature of the food material in the upper layer becomes higher than that of the food material in the lower layer due to the convection phenomenon.

However, since the food material having fluidity is forcibly agitated in the insulating container by the agitator, the food material in the upper layer and the food material in the lower layer are surely agitated and mixed, and have fluidity. The temperature distribution of the entire food material is substantially equalized.

Therefore, since there is no temperature difference between the temperatures of the food materials contained in the food materials, and the food materials have a substantially uniform temperature, the electric current is evenly distributed in all the food materials and the food materials are heat-treated by Joule heat. It is possible to reliably produce an electrically processed food product without uneven heating.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of an electrically processed food production apparatus for carrying out the electrically processed food production methods of the first and second aspects of the present invention will be described with reference to FIGS. 1 to 9.
Reference numeral 1 denotes an insulative container formed in a bottomed box shape with an open upper surface, and a pair of electrodes 4 and 5 are provided on opposing surfaces 2 and 3 of the insulative container 1, respectively. A lid (not shown) may be covered if necessary. Then, in the insulating container 1, the food material A is stored under the flooded condition together with the conductive liquid B containing an appropriate amount of salt. The conductive liquid B may be any liquid as long as it has an appropriate conductivity, and is not limited to salt water. The food material A is a water-permeable or moisture-permeable packaging material (for example, cloth, net, a mixture of materials such as electrically conductive ham, sausage or meat, grated meat, marine animals, gall material, plant material, and the like). It may be a packaged food material filled in a fibrous casing, a cellulose casing, a porous film or the like, and the both ends thereof are tightened to form the tightening portions 6 and 7, or an unwrapped food material. Is a food material A that faces a pair of electrodes 4 and 5 disposed on the facing surfaces 2 and 3 of the insulating container 1, respectively.
The conductive liquid B previously stored between the both-side fastening portions 6 and 7
Is arranged between the pair of electrodes 4, 5 and the food material A in order to form the stirring chambers 10, 11 for forcibly stirring and mixing the inside of the insulating container 1 by the operation of the stirring device 9. It is a net made of resin. The stirring device 9 is a stirring chamber in which a pair of fumarolic pipes 12 and 13 having a fumarole 14 at the tip end are provided on both sides of the insulating container 1 as in the first embodiment shown in FIGS. 1 and 2. The conductive liquid B in the stirring chambers 10 and 11 is forcibly stirred toward the center of the bottom of the stirring chambers 10 and 11 by the jet pressure of the jetting gas from the jet port 14 in the direction of the arrow shown in FIG. Then, the temperature distribution of the conductive liquid B is equalized.

FIG. 3 shows a second embodiment of the stirrer 9. The stirrer 9 of the second embodiment has a second end on the side of the tip.
A pair of fumarole pipes 12a and 13a having the fumaroles 14a, ...
The conductive liquid B in the stirring chambers 10 and 11 is forcibly stirred in the direction of the arrow shown in FIG. 3 by the jet pressure that blows upward from the fumaroles 14a to equalize the temperature distribution of the conductive liquid B. It has a configuration intended for.

FIGS. 4 and 5 show a third embodiment of the stirrer 9, which is a pair of jet pipes 16 each having one end connected to the circulation pumps 15, 15. , 16 and the pair of reflux pipes 17, 17 are insulated containers 1
The jet ports 18, 18 which are inserted at symmetrical positions in the stirring chambers 10, 11 provided on both sides of the jetting pipe 16 and 16 and which are opened at the tip end side of the jetting pipes 16, 16 are in the conductive liquid B stored in the stirring chambers 10, 11. Liquid suction ports 19 and 19 opened on the liquid suction side of the reflux pipes 17 and 17 are located on the bottom one side of the stirring chambers 10 and 11 at positions symmetrical to the jet ports 18 and 18. The circulation chambers 15 and 15 are opened to open the stirring chambers 10 and 1.
The conductive liquid B in 1 is forcibly stirred in the direction of the arrow shown in FIG. 5 to forcibly stir the temperature distribution of the conductive liquid B.

The stirring device 9 of the fourth embodiment shown in FIG.
Is the ejection port 18 and the liquid suction port 19 shown in the third embodiment.
Is opened at two or more places to further promote the stirring action of the conductive liquid B contained in the stirring chambers 10 and 11.

In the fifth embodiment shown in FIGS. 7 and 8, the agitating device 9 comprising one or more ultrasonic oscillators is provided on the outer bottom side of the agitating chambers 10 and 11.
The conductive liquid B in the stirring chambers 10 and 11 is stirred in the direction of the arrow shown in FIG. 8 by ultrasonic waves to equalize the temperature distribution of the conductive liquid B.

The apparatus of the embodiment shown in FIG. 9 has a fluid food material C stored in the insulating container 1 in a stationary state, for example, a fluid food material, a solid-liquid mixed food material, or a gel. Is a bottomed box-like insulating material having an open top surface for carrying out the manufacturing method according to the second paragraph for manufacturing an electrically processed food by electrically heating a shaped food material by an electric current effect. A pair of electrodes 4a and 5a are arranged on the facing surfaces 2a and 3a of the container 1a, respectively, and the food material C having fluidity described above is accommodated in the insulating container 1a, and the food material C having fluidity is also contained. Is a force-stirring action by a blade-type stirrer 9 provided in the insulating container 1a so as to equalize the temperature distribution of the food material C having fluidity and make the energization amount uniform, so that the energization processing is always performed evenly. The energized processed food It is obtained by allowing manufactured. The stirring device 9 described above can be used to forcibly stir the fluid food material C by using the same stirring device 9 as shown in FIGS. 1 to 8.

[0022]

Since the present invention has the method and apparatus as described above, it has the following effects. According to the method of claim 1, in the process of containing the food material A in the insulating container together with the conductive liquid B and subjecting the conductive liquid B to the heat treatment by the Joule heat generated by the current-carrying action, the conductive liquid B is agitated to conduct the conductive liquid. Since the temperature distribution of B is equalized, the temperature of the conductive liquid of the upper layer and the temperature of the conductive liquid of the lower layer housed in the insulating container can be raised to a uniform temperature without causing a temperature difference, and the food material is always maintained. Therefore, it is possible to accurately produce an electrically processed food that has been uniformly heat-treated and subjected to an electrically heated treatment without uneven heating.

According to the method of claim 2, in the process of containing the fluid food material C in an insulating container and electrically heating it with Joule heat generated by the energizing action, the fluid food material C is obtained. Since the temperature distribution of the food material C having fluidity was made uniform by stirring, the temperature difference between the food material temperature of the upper layer and the food material temperature of the lower layer housed in the insulating container was not generated. It is possible to accurately produce an electrically processed food that has been subjected to an electrically heated treatment without heating unevenness by raising the temperature to a substantially uniform temperature and evenly energizing the food material having fluidity.

According to the manufacturing apparatus of claim 3, the conductive liquid B stored together with the food material A in the insulating container or the food material C having fluidity is forcibly stirred by the stirrer while the pair of electrodes is interposed between the electrodes. Suitable for the electrically processed foods that have been subjected to the electric current heat treatment and have no uneven heating, while the temperature distribution of the conductive liquid B or the food material C having fluidity is made uniform by the electric current effect applied over It can be manufactured accurately.

[Brief description of drawings]

FIG. 1 is a partially cutaway vertical front view of an electrically processed food production apparatus for carrying out the production method of the first item.

FIG. 2 is a cross-sectional view taken along the line DD of FIG.

FIG. 3 is a vertical sectional side view of an insulating container equipped with a stirring device of a second embodiment.

FIG. 4 is a vertical cross-sectional front view of an electrically processed food manufacturing apparatus including a stirring device of a third embodiment.

5 is a side sectional view taken along the line EE of FIG.

FIG. 6 is a vertical sectional side view of an insulating container equipped with a stirring device of a fourth embodiment.

FIG. 7 is a vertical cross-sectional front view of an electrically processed food manufacturing apparatus equipped with a stirring device of a fifth embodiment.

FIG. 8 is a side sectional view taken along the line FF of FIG.

FIG. 9 is a vertical cross-sectional front view of an apparatus for producing electrically processed food for carrying out the production method of the second item.

[Explanation of symbols]

 1, 1a Insulating container 2a, 3a Opposing surfaces 4a, 5a Pair of electrodes 9 Stirrer A Food material B Conductive liquid C Food material having fluidity

Claims (3)

[Claims] 1. A food material is stored in an insulating container together with a conductive liquid, and then the conductive liquid is stirred to make the temperature distribution of the conductive liquid uniform and the food material is heat-treated by a current-carrying action. A method for producing a characteristic electrically processed food. 2. A food material having fluidity is housed in an insulating container, and then the food material having fluidity is agitated to energize the food material by an energizing action while equalizing the temperature distribution of the food material. A method for producing an electrically processed food, characterized by being heat-treated. 3. A food material and a conductive liquid or a food material having fluidity are housed in an insulating container in which electrodes are arranged on opposite surfaces, and the insulating container has a conductive liquid or fluidity. An apparatus for producing electrically processed food, comprising a stirrer for stirring food ingredients.