JPH06125700A - Sliced cabbage-containing package - Google Patents

Abstract

PURPOSE:To provide the subject package having the pore area rate of a pored synthetic resin film and in-bag surface area each within a specified range, capable of preventing sliced cabbage odor due to anaerobic respiration and its browning due to excess oxygen for a long period of time. CONSTITUTION:A three-way sealed bag made of pored synthetic resin film with 42 pores 80mum in mean diameter so as to be 1X10<-5> to 1X10<-4>% in pore area rate on a packaging bag consisting of nylon/polyethylene 50mum thick with an inside dimension of 320mm X 350mm is packed with sliced cabbage so as to be 100-600cm<2> in in-bag surface area per 100g of the sliced cabbage followed by sealing and closing, thereby obtaining the objective package having the above-mentioned advantages, thus capable of serving to the dinner table with the taste characteristic of sliced cabbage and its freshness retained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended for keeping freshness of sliced cabbage by continuing the breathing action in an appropriate oxygen atmosphere even after the sliced cabbage is packaged in a synthetic resin film packaging bag. It relates to a package. More specifically, the present invention relates to a package that holds an oxygen atmosphere that does not anaerobically breathe in a low oxygen state caused by the breathing action of sliced cabbage, and that holds a condition that suppresses deterioration of quality caused by oxidation by oxygen. It is a thing.

[0002]

BACKGROUND OF THE INVENTION Sliced cabbage retains its respiratory action after processing. Moreover, breathing becomes higher than before cutting.
Therefore, during storage and distribution after processing and until eating
It is necessary to prevent the quality deterioration of sliced cabbage. The production form of sliced cabbage is produced at the Kat Yasai plant, which is well-managed. Due to the nature of sliced cabbage, the quality of the sliced cabbage deteriorates quickly, and polyethylene-based hermetically sealed packaging is used to maintain freshness. Sealed sliced cabbage is packaged, immediately consumes the air in the bag, becomes anoxic, and anaerobically breathes, so it consumes nutrients quickly, evaporates moisture, and has a very short shelf life. Has become.

[0003]

An object of the present invention is to provide a product which forms a desirable oxygen concentration atmosphere for keeping the freshness of sliced cabbage for a long time, does not produce an offensive odor, and has no nutrient loss or browning. Therefore, it was made as a result of diligent research, and by supplying the minimum amount of oxygen necessary for the survival of sliced cabbage and keeping the sliced cabbage in a so-called hibernation state, a decrease in sugar content and browning, which are disorders of high oxygen content, The present invention aims to provide a packaging bag for sliced cabbage and a packaged body containing sliced cabbage for supplying sliced cabbage with high freshness.

[0004]

DISCLOSURE OF THE INVENTION According to the present invention, in a package containing sliced cabbage, which is made of a synthetic resin film having perforated hermetically sealed sliced cabbage, the perforated area ratio of the perforated synthetic resin film is 1 × 10 ^-6 to 1. × 10 ^-4 %, and the surface area in the bag per 100 g of sliced cabbage is 600 to 1
A packaged body with sliced cabbage characterized by having a size of 600 cm ^{2. In} particular, the average pore size of the pores is 20 μm.
It is preferable that the number of the holes is plural, and the number of the holes is plural per one packaging bag.

The perforated film used in the present invention may be any one as long as it can be used for packaging sliced cabbage, but generally, unstretched polypropylene, stretched polypropylene, polyethylene, Polyvinyl chloride, etc. are used, but other films such as polyamide, polyester, polycarbonate, etc., or composite films of these may be used, and further, those having a sealant layer on the surface of these films may be used. There is no problem even if the film has been subjected to anti-fog treatment. The thickness of these films is usually 20-40 μm. Further, these films may be transparent or opaque, and may be printed on the surface without any problem.

A packaging bag using the perforated film of the present invention is
The open area ratio is determined by the amount of sliced cabbage to be packed, and the open area ratio is 1 × 10 ⁻⁵ to 1 × 1.
It is necessary to be ^0-4 %. The reason for this is to keep the amount of oxygen and the amount of carbon dioxide in the packaging bag under conditions suitable for keeping the freshness of the sliced cabbage. From the results of experiments conducted by the present inventors, the oxygen concentration is 2% or more and 15% or less. Is desirable, and the aperture area ratio to satisfy these conditions is 1 ×
It becomes 10 ⁻⁵ to 1 × 10 ⁻⁴ %. Open area ratio is 1 × 10
If it is less than ^-5 %, the sliced cabbage becomes anoxic during the distribution process due to the breathing action after packaging, and begins to anaerobically breathe, producing an offensive odor. Also, the open area ratio is 1 ×
If it exceeds 10 ^-4 %, the amount of oxygen in the packaging bag will be too large, and the oxygen effect will cause the browning phenomenon of the sliced cabbage, and since the amount of oxygen is large, the breathing action of the sliced cabbage is active. And the sliced cabbage grows more than necessary and the sugar content is consumed. Therefore, the aperture area ratio of the perforated film used as a packaging bag for sliced cabbage is 1 × 10 ^-5.
It is necessary to be 1 × 10 ⁻⁴ %, preferably 5
× 10 ^{-6 to} 5 × 10 ^-5 %, particularly preferably 2 × 10 ^-5
It is more effective to be in the range of 8 × 10 ⁻⁵ .

Further, it is desirable that the average diameter of the holes in the perforated film is as small as possible.
It is about 150 μ, preferably 30 to 100 μ. It is desirable that the pore diameter is as small as possible, but if it is 20 μm or less, the productivity of the perforated film is lowered. The average pore size is 1
If it is 50 μm or more, the number of holes required to obtain an appropriate open area ratio is reduced, and there is concern about the quality accuracy of freshness preservation. Also, the shape of the holes can be circular, square, triangular, etc.
It may have any shape, and the average diameter in the major axis direction is 1
If it is 50 μm or less, there is no problem, but a circular shape is preferable from the viewpoint of workability of opening.

The number of holes per bag of the perforated film used for the sliced cabbage packaging bag is calculated from the open area ratio and the average hole diameter, but it is desirable to use a plurality of holes as much as possible. Since the holes may be blocked by adhesion of contents or external conditions such as attachment of price list, it is preferable to have multiple holes to ensure freshness, and more than 5 holes per bag, It is desirable that the degree of influence per hole is 20% or less. The sliced cabbage packaging bag may be a three-sided sealed bag, a four-sided sealed bag, a gusseted bag, or the like.Furthermore, the sliced cabbage is filled in a tray, a cup, or the like, which is then packaged. It may be in the form of packaging in a bag.

The size of the packaging bag for sliced cabbage has a surface area of 100 to 60 per 100 g of sliced cabbage.
It should be 0 cm ² , preferably 200 to 500
cm ² . The inner surface area of the bag is specified so that the seal portion, that is, the binding margin is not included in the calculation. If the surface area inside the bag per 100 g of sliced cabbage is 100 cm ² or less, the density of the sliced cabbage inside the bag will be high, the slice cabbage will be scratched due to contact with each other, and it will be easily browned. It becomes insufficient and falls into anaerobic breathing, which is not preferable. Furthermore,
The surface area in the bag is 600c per 100g of sliced cabbage
When it is more than m ^2, the density of the sliced cabbage in the bag becomes low, the initial amount of oxygen in the bag is large, and the oxygen supply amount is large at the above-mentioned opening area ratio, and the respiratory action of the sliced cabbage becomes active, causing browning. It will be easier to do, and the nutrients of the sliced cabbage will be exhausted. In addition, since the amount of film used is large, the cost of the bag is high.

Although it is not limited to the packaging of sliced cabbage, naturally the distribution process and temperature control at the store are important points for keeping the freshness of vegetables and the like, and the respiration rate of sliced cabbage is also natural. The present invention envisages these temperatures to be 3 to 15 ° C., although depending on these temperatures, the respiratory volume increases as these temperatures increase.

[0011]

【Example】

<< Example 1 >> Thickness 5 with inner dimensions of 320 mm × 350 mm
A packing bag made of 0μ nylon / polyethylene with an average pore size of 80 so that the open area ratio is 9.4 × 10 ^-5 %.
1 kg of sliced cabbage was filled in a three-sided sealed bag having 42 μ holes (the surface area inside the bag was 320 × 350 × 2 =
224,000 mm ² , so sliced cabbage 10
The surface area in the bag per 0 g is 22400 mm ² or 2
24 cm ² ) stored at 5 ° C. for 3 days and 7
Table 1 shows the results of observing the freshness after a day and the odor generation status and browning status.

Example 2 A packaging bag having the same size as that of Example 1, using a packaging bag made of nylon / polyethylene having a thickness of 50 μ and having an open area ratio of 1.3 × 10 ⁻⁵ %. A sliced cabbage similar to that used in Example 1 was used by using a packaging bag in which 23 holes having an average pore diameter of 40 μ were opened.
Table 1 shows the results of examining freshness after 3 days and 7 days of filling in the same manner as in Example 1 after filling with kg.

<Embodiment 3> A packaging bag having the same size as that of Example 1 is used. A packaging bag made of nylon / polyethylene having a thickness of 50 μ is used, and the open area ratio is 3.1 × 10 ⁻⁵ %. Using a packaging bag in which 14 holes each having an average pore diameter of 80 μ are opened so that one sliced cabbage similar to that used in Example 1 is used.
Table 1 shows the results of examining freshness after 3 days and 7 days of filling in the same manner as in Example 1 after filling with kg.

<< Comparative Example 1 >> Inner size is 320 mm × 350 m
1 k of the same sliced cabbage as that used in Example 1 was placed in a non-perforated packaging bag made of polyethylene and having a thickness of 60 μm.
The results of examining the freshness after 3 days and 7 days in the same manner as in Example 1 after filling with g are shown in Table 1.

Comparative Example 2 A packaging bag having the same size as that of Example 1 was used. A packaging bag made of nylon / polyethylene having a thickness of 50 μ was used, and the open area ratio was 6.3 × 10 ⁻⁶ %. 1k of the same sliced cabbage as used in Example 1 was prepared using a packaging bag in which five holes having an average pore diameter of 60μ were opened.
The results of examining the freshness after 3 days and 7 days in the same manner as in Example 1 after filling with g are shown in Table 1.

Comparative Example 3 A packaging bag having the same size as that of Example 1 was used. A packaging bag made of nylon / polyethylene having a thickness of 50 μ was used, and the open area ratio was 1.9 × 10 ⁻⁴ %. Using a packaging bag in which 55 holes having an average pore size of 100 μ were opened, 1 kg of sliced cabbage similar to that used in Example 1 was filled, and freshness after 3 days and 7 days was examined in the same manner as in Example 1 Is shown in Table 1.

[0017]

[Table 1]

[0018]

By using the packaging bag of the present invention, the odor caused by anaerobic respiration of sliced cabbage is prevented, and the digestion of nutrients by anaerobic respiration is prevented, while the browning due to excess oxygen is prevented, You can preserve the freshness of sliced cabbage for a long time.

Claims (5)

[Claims] 1. A packaged product containing a sliced cabbage, which is made of a synthetic resin film having a hole and a hermetically sealed sliced cabbage, wherein the open area ratio of the synthetic resin film having a hole is 1 × 10 ^−5.
A packaged body containing sliced cabbage, characterized in that it is from 1 × 10 ⁻⁴ % and the surface area in the bag per 100 g of sliced cabbage is 100 to 600 cm ² . 2. The sliced cabbage-containing package according to claim 1, wherein the pores of the perforated synthetic resin film have an average pore diameter of 20 to 150 μm. 3. The package with sliced cabbage according to claim 1, wherein the number of the holes provided in one package is plural. 4. The opening area ratio is 2 × 10 ⁻⁵ to 8 × 1.
The package containing sliced cabbage according to claim 1, 2 or 3, which is 0 ^-5 %. 5. The surface area in the bag per 100 g of sliced cabbage is 200 to 500 cm ^2.
Alternatively, the package containing sliced cabbage according to the item 4.