JPS58224672A - Treatment of food vessel for storage - Google Patents

Abstract

PURPOSE:Vessels are satisfactorily sterilized and dried by spraying with a Ca ion aqueous solution and irradiating with farinfrared rays and tightly sealed after food products are placed in them, thereby the products are stored in high fresheness without generation of microorganisms. CONSTITUTION:Vessels 4 for food products which are being carried by the belt conveyor 5 are sprayed with an aqueous solution containing 2-5wt% of Ca ion by means of sprayers 9 and dried on by irradiating the sprayed surfaces with farinfrared rays of 5-50micron wave length by means of infrared generator 10. Then, food products are placed in the vessels and tightly sealed. The through sterilization and drying by spraying with aqueous Ca ion and irradiating with farinfrared rays, according to the present invention, extremely reduces the formation of microorganisms and deterioration of the products in the vessels compared with conventional processes.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preserving containers for edible bacteria, etc., which can maintain good freshness without the generation of germs. Sterilization of a container into which bacteria, etc. are charged is carried out by irradiating the container with ozone from an ozone sterilization generator to sterilize the container, before charging the edible bacteria, etc. into the container. However, this method has a problem in that although ozone has a sterilizing effect, it does not have a preventive effect], and in general, the sterile preservation of edible bacteria in this type of container does not change after the container is washed. Although this must be considered as an important factor, conventional conservation methods do not give sufficient consideration to this point. In other words, no consideration is given to the fact that if moisture adheres to the container immediately before charging edible bacteria, this can become a source of germs.

The present invention has been made in order to solve the above-mentioned problems in preserving edible bacteria etc. placed in containers.

The present invention will be explained with reference to the embodiments shown in FIGS. 1-3.

Reference numeral 5 designates a belt conveyor for transporting the containers 4, which consists of an endless belt 6 wrapped around rotary bodies 7.8 arranged at predetermined intervals.For example, the drive rotary body 7 is
By rotating the container 4 in the direction a, the container 4 is sent in the direction a. Above the feed passage of the container 4, from the right side to the left side in FIG. 1, there is a calcium ion spraying section 1. Next, a far-infrared ray irradiation section 2 is provided. Calcium ion spray part lk
A plurality of calcium ion sprayers 9 are provided for spraying an aqueous solution containing 2 to 5% by weight of calcium ion powder into opposing container passages. This aqueous solution is used to sterilize bacteria in the container 4 by spraying it as described later, but the reason why the number of calcium ions is limited to 2 to 5 weight per 1 hydrate is 2. If it is less than 5%, the bactericidal power is not sufficient, and even if it is higher than 5%, the bactericidal effect will not be improved. This is because it has been found through experiments that the following can be obtained.

The far-infrared ray irradiation section 2 is provided with a plurality of far-infrared ray generators 1O that irradiate far-infrared rays with a wavelength of, for example, 5 to 50 microns to nine opposing container passages.

As far-infrared ray generator 1o used for
No. 1723) can be used.

In FIG. 3, a ceramic material with a predetermined thickness is connected to a power source. Note that 103 is an insulator. Therefore, the ceramic 101 is ZrO.

A mixture in which the 5top content is 60%, the mineralizing agent content consisting of manganese oxide and at least one of the oxides of iron, cobalt, nickel and chromium is 15% and the balance is clay is fired at at least the porcelain temperature. It has been found that the use of such a heater can radiate a much longer wavelength, for example, from 2 to 50 microns, compared to conventional quartz tube heaters or gas heaters that encapsulate nichrome wire.

Therefore, as will be described later, in the present invention, after sterilizing the container 4 with an aqueous calcium ion solution, the container 4 is irradiated with far infrared rays at a temperature of 40 to 50°C.
Because it has a temperature of about 100 μm, it is possible to dry calcium ion spray and other moisture relatively quickly, for example, in about 2 minutes or less. This is because, according to the authors, it was confirmed that it had the most sterilizing effect, and that it was possible to bring the container 4 into a sufficiently sterilized state by using it in combination with the sterilization using calcium ions described above.

FIG. 2 shows a closed thermostatic chamber in which containers 4 filled with food products, etc. are collected after being processed in the process shown in FIG. 1.
Far-infrared generator IO that irradiates far-infrared rays in 4 directions of the container
is provided. In FIGS. 1 and 2, reference numeral 11 denotes a reflector plate 2, for example made of aluminum, which is used to reflect and irradiate a part of far-infrared rays generated from the far-infrared generator 1O toward the container.

In such a configuration, when the calcium ion sprayer 9 and the far-infrared generator 1O in FIG. 1 are operated, the driving rotary body 7 of the belt conveyor 5 is driven to rotate in the direction b, and is located at the upper right end in FIG. An empty container 4 with an open top is sent onto a belt 6.

At that time, the container 4 is sent in the direction a as the belt 60 is rotated. In the above-mentioned feeding process, the container 4IC is sprayed with the calcium ion aqueous solution mentioned above from the calcium ion sprayer 9, and after the container 4 is sufficiently sterilized by the spray nK, the container 4IC is irradiated with far infrared rays from the far infrared generator 10. At the same time, the moisture in one container 4 is sufficiently dried and sent to a predetermined position.

In this way, the inside of the container 4 can be kept sterile and sufficiently sterilized by charging food items, etc. into the container 4, which has been sufficiently sterilized and dried by spraying an aqueous calcium ion solution and irradiating it with far-infrared rays, and sealing it tightly. Since the edible items are charged after being dried, the occurrence of bacteria and the resulting corrosion of the edible items are extremely reduced compared to conventional methods. However, if it is desired to further maintain the sterility and freshness of the containers, it is advisable to collect the containers 4 filled with food products and the like in a closed thermostatic chamber 3 shown in FIG. 2. There are multiple far-infrared generators in constant temperature room 3.
are provided, and a predetermined far infrared ray is emitted from them to the container 4.
The inside of the closed thermostatic chamber is maintained at a predetermined temperature 3 determined by the type of food products inserted into the container 4 in a far infrared atmosphere.
In addition to preventing the generation of new bacteria, the far infrared rays can be used as a heat source to maintain the freshness of the food items in the container at an appropriate temperature, making it possible to maintain sterility and freshness for a long time. be.

Therefore, it is possible to easily maintain the sealed thermostatic chamber 3 at a constant temperature within a predetermined temperature range by using a known temperature sensor and controlling the power source of the far-infrared generating device.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view showing another embodiment of the present invention, and FIG. 3 is a longitudinal cross-sectional view showing an example of a far-infrared generator used in the present invention. It is. 3... Airtight thermostatic chamber, 4... Container for edible 8-go, lO.
・Far-infrared ray generator

Claims (1)

[Claims] 1) Addition of 2 to 5% by weight of calcium ions (Ca);
A container for edible bacteria, etc., characterized in that after a dissolved aqueous solution is sprayed into a container for edible bacteria, etc., the sprayed surface is irradiated with far infrared rays to dry it, and then the edible bacteria, etc. are charged into the container. preservation treatment method. 2) After adding 2 to 5 weights of calcium ions (Ca) and spraying the dissolved aqueous solution onto a container for edible bacteria, the sprayed surface is irradiated with far infrared rays to dry it, and then the edible bacteria is added to the container. A method for preserving a container for edible supplies, characterized by storing the container charged with edible supplies, etc., in a far-infrared atmosphere at a constant temperature.