JPH06189674A - Method for treating food and its apparatus - Google Patents

Abstract

PURPOSE:To obtain a food good in keeping quality by installing a negative ion generator in a refrigerator regulated to a specific temperature, inducing a high-frequency distributed voltage at an applied DC high voltage to each food in the refrigerator and improving a cultured fish in the taste thereof comparable to that of a natural fish. CONSTITUTION:A refrigerator body 1 containing a refrigerator, a cooler 2, an electronic temperature regulator, etc., therein is equipped with a negative ion generator 3 having a carbon wire as a negative an electronic temperature regulator, etc., therein is equipped with two aluminum plates applied thereto as a positive electrode and a high-frequency superimposed DC high-voltage generator 4 therein. The temperature in the refrigerator 1 is regulated to 0 to -4 deg.C and the negative ions and ozone are generated with the negative ion generator 3 to carry out the surface sterilization of each food placed on shelves 5 provided in the refrigerator 1. A high-frequency distributed voltage is then induced to the food by applying a voltage to a transformer in the high-frequency superimposed DC voltage generator 4 to improve a cultured fish to the taste thereof comparable to that of a natural fish. Thereby, the food is treated so that even a cultured fish may be improved in even the keeping quality thereof equal to or better than that of a fresh fish.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food processing method and apparatus.

[0002]

2. Description of the Related Art Conventionally, foods such as fish are generally stored in a refrigerator at a constant temperature.

[0003]

The above-mentioned conventional storage method has problems that the flesh color is discolored with the passage of time, the taste is deteriorated, and the number of days for keeping freshness is small.

Therefore, an object of the present invention is to propose a method and apparatus for improving the taste of fish, which improves the hue of meat color, taste, and the number of days for keeping freshness.

[0005]

The present invention is for solving the above-mentioned problems, and the first invention provides a negative ion generator in a refrigerator adjusted to 0 ° C to -4 ° C. A method of treating food, characterized in that a high-frequency component voltage of a DC high voltage carried by the device is induced in food placed in a refrigerator.

A second aspect of the present invention is an apparatus for accomplishing the above method, which is a food processing apparatus characterized in that an anion generator and a high frequency superposed DC high voltage generator are provided on the inner surface of the refrigerator body. is there.

[0007]

[Function] The surface of the food is sterilized by the negative ion and ozone generating effect of the negative ion generator in the refrigerator body, and the high frequency component voltage is induced in the food by the high frequency superposed direct current high voltage to improve the taste of the food. , Meat color, storability, etc. are also improved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described based on the embodiment shown in FIG. Reference numeral 1 indicates a refrigerator body. The refrigerator main body 1 has a frontage of 180 mm, a depth of 800 mm, and a height of 1800 mm, and a refrigerator and a cooling device 2, an electronic temperature controller, etc. are built therein. The temperature inside the refrigerator body 1 is adjusted to 0 ° C to -4 ° C.

Reference numeral 3 is a negative ion generator provided in the refrigerator main body 1. The negative electrode uses a carbon wire, and the positive electrode has a thickness of 0.1 mm, a width of 30 mm, and a length of 300 mm.
It consists of two aluminum plates attached to a vinyl chloride container. In use, a voltage of minus 7 kv and plus 7 kv is applied to both electrodes.

Reference numeral 4 denotes a DC high voltage generator provided in the refrigerator main body 1, which has a built-in transformer for inducing a high frequency superposed DC high voltage power supply. 5 is a shelf on which the fish to be treated is placed.

To process food such as fish, the refrigerator body 1 is used.
The food to be treated is placed on the inner shelf 5, and the temperature inside the refrigerator body 1 is adjusted and maintained at 0 ° C. to −4 ° C. by the refrigerator and the cooling device 2.

Then, the surface of the food to be treated is sterilized by the effect of generating negative ions and ozone by the negative ion generator 3. In addition, the power of the transformer of the high frequency superposed DC high voltage generator 4 induces the high frequency component voltage to the food to be processed.

Next, Table 1 shows the experimental results comparing the treatment method of the present invention with the conventional treatment method in a general refrigerator.

[0014]

[Table 1]

Table 1 below shows the results obtained by wrapping 500 g of cultured yellowtail in both methods with wrap and keeping it cool for 24 hours. As can be seen from Table 1, in the treatment by the method of the present invention, there is no change in the color tone of the meat, and the taste is improved to a natural flavor that is equivalent to that of natural hamachi in spite of being cultured hamachi. The number of days to keep the freshness after treatment was as long as 3 days.

Next, a refrigerator in which a salt water treatment device is incorporated in the above treatment device will be described with reference to FIG. 1 is a refrigerator main body, 2 is a refrigerator and cooling device, 3 is a negative ion generator, 4 is a DC high voltage generator, and 5 is a shelf, and these are the same as above.

6 is a water tank with a lid installed in the refrigerator body 1, which is made of polyvinyl chloride and has a width of 370 mm,
The depth is 535 mm and the height is 300 mm. The water tank 6 contains salt water, which has a concentration and components equivalent to those of seawater or seawater produced from natural salt, and is constantly cooled to around + 2 ° C.

Reference numeral 7 is a bubble generator provided at the inner bottom of the water tank 6. Reference numeral 8 is an air blower provided in the refrigerator main body 1, which has an alternating current of 100 V 44 W and an air volume of 40 liter / min.

Reference numeral 9 is a negative ion generator provided in the air blower 8. Reference numeral 10 is a pipe for sucking the air in the refrigerator body 1 into the air blower 8, and 11 is a pipe for sending air from the air blower 8 to the bubble generator 7 in the water tank 6, both of which are made of vinyl chloride.

By the operation of the air blower 8,
The air in the storage is sucked from the pipe 10, the air is made into air containing negative ionization and ozone by the negative ion generator 8, and the air is discharged from the bubble generator 7 to generate bubbling in the salt water in the water tank 7. It is designed to let you.

Such salt water treatment is carried out as a pre-process of treating frozen fish. First, the frozen fish is subjected to the salt water treatment described above, and then to the high frequency component voltage and the negative ion treatment. As shown in Table 2, the taste, color development and storability of frozen fish can be improved.

[Table 2] In this Table 2, the thing of this invention is frozen tuna 3kg.
Was thawed by the above-mentioned thaw method of the present invention, and after 1 hour from the thaw, 200 g of fish meat having a thickness of 15 mm was retreated by salt water bubbling for 15 minutes again, and the fish meat after the treatment was irradiated with negative ions and ozone. The induction of the high frequency component voltage of the high frequency superposed DC voltage was performed for 1 hour. For general salt water treatment, after draining for 1 hour in a general refrigerator, remove the scraps to a thickness of 15 mm and
Stored for hours. As a result, the tint, taste and freshness retention days were improved as compared with the conventional treatment as shown in Table 2.

EFFECTS OF THE INVENTION According to the present invention, foods can be improved by the inductive action of high frequency voltage superimposed on high voltage DC voltage and the effect of sterilizing negative ions and ozone. The effect of natural fish is better than that of natural fish.

[Brief description of drawings]

FIG. 1 is a sectional view of a refrigerator showing an embodiment of the present invention.

FIG. 2 is a sectional view of a refrigerator in which a salt water treatment device is added to the device of the present invention.

[Explanation of symbols]

 1 Refrigerator 2 Refrigerator and cooling device 3 Negative ion generator 4 DC high voltage generator

Claims (2)

[Claims] 1. An anion generator is provided in a refrigerator adjusted to 0 ° C. to −4 ° C., and a high frequency component voltage of a direct current high voltage applied to this device is applied to food placed in the refrigerator. A method for treating food, characterized by being induced. 2. An apparatus for treating food, comprising a negative ion generator and a high frequency superposed DC high voltage generator on the inner surface of a refrigerator body.