JPS58205482A - Storage of food - Google Patents

Abstract

PURPOSE:To enable the long-term preservation of green vegetables, etc., by wrapping the food to be packaged, e.g. green vegetables, etc. with flexible, water-absorbing and hydrated packaging material, and refrigerating the packaged food at a temperature below 0 deg.C and above the freezing point of the packaged food. CONSTITUTION:The food to be packaged 2 (e.g. vegetables, fruits, etc.) is wrapped with a flexible, water-absorbing and hydrated packaging material 1 (e.g. wet old newspaper), and refrigerated at a temperature below 0 deg.C and above the freezing point of the food 2 (e.g. 0 deg.C--0.9 deg.C). The food is covered with the ice layer 3 made of frozen water in the packaging material 2. Accordingly, the food can be refrigerated without causing freezing, the formed ice layer 3 protects the food from the brief and slight fluctuation of the temperature of the storage chamber, and the food can be stored for a long period at low cost.

Description

[Detailed Description of the Invention] Among fresh foods, fish and meat can be frozen and preserved as so-called frozen foods, but agricultural products, especially vegetables and fruits, cannot be frozen.

The present invention makes it possible to provide a method for storing agricultural products in which vegetables and fruits are entirely covered with a protective layer of ice and can be stored for a long time in a refrigerated warehouse.

Therefore, in the present invention, water is allowed to seep into a thin packaging material 1 that is water-absorbing and flexible, and an object to be packaged 2 such as vegetables or fruits is wrapped in this water-containing packaging material 1. After that, the packaged item is heated to a temperature A below 0°C but not below the freezing point of the packaged item.
By cooling the packaging material, water in the packaging material is frozen and an ice layer 3 is formed.

As mentioned above, the packaging material used in the method of the present invention may be a thin material that is water absorbent and has marking properties.
11 I don't know what material it is made of, but used paper, especially newspaper, is suitable for cheap and quick materials.

Of course, in order to freeze only the moisture in the packaging material, the temperature should be below 0℃, but the packaged items must not be frozen, so the temperature in the storage room does not reach the freezing point of the packaged items. However, it should be in a temperature range close to that freezing point.

For example, in the case where the item to be packaged is kimabetsu, the temperature of the storage room is set to 0'C or lower → 9°C.

Other agricultural products also have high freezing points, \-16C1.
The lowest temperature is -2°C, so if you control the temperature in the storage room to keep it in the 0°C to 9°C range, this will suffice in most cases.

According to the above-described method of the present invention, the item to be packaged can be wrapped in the ice layer 3 in which the water in the packaging material is frozen.

Therefore, the packaged items do not freeze (can be kept refrigerated), and the ice layer 3 once generated becomes a stock protection layer, so that even if the temperature in the storage room changes slightly over a short period of time, It has the advantage that it does not affect the contents inside, and the packaged items can be refrigerated for a long time at a low temperature.

In addition, since the packaging material 2 is the core material of the ice layer 3, the ice layer is difficult to break and is convenient for transportation.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the state in which it is stored according to the method of the present invention;
The figure is a diagram showing storage temperature zones. In the diagram: 1. Packaging material 2. Item to be packaged! 3
Mizushu Applicant Toyo Seisakusho Co., Ltd. Agent Patent Attorney 1) Kiyomi 1st v! J 142 Procedural Book Authorized Book Mr. Haruki Shimada, Commissioner of the Patent Office ゛So' 1 Display of the case θP70o2 1157+l Patent Application No. Bisenkei No. 3 2 Title of the invention Food storage method 3 Person making the amendment Relationship with the case Applicant (-1.L(-c(ni'i) Toyo Seisakusho Co., Ltd. 4 Agent 5 Date of amendment order Voluntary 6 Amendment) The number of inventions has increased from this point. ) Contents of the amendment as stated in the attached sheet (1) In the specification, add "-" after "temperature" on page 2, line 15. (2) In the same document, on page 3, line 8 1. (3) In the petition, paragraph 6, ``6 Inventors other than the above'' should be corrected to ``6 Inventors other than the above.''

Claims (1)

[Claims] After wrapping the packaged item in a water-absorbing, flexible, and water-retaining packaging material, the packaged item is heated to a temperature below 0"C but not reaching the freezing point of the packaged item. A food storage method that allows refrigeration within a temperature range.