JP3154445B2 - Shredded cucumber package - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for maintaining freshness of shredded cucumber by keeping it in a proper oxygen atmosphere even after shredded cucumber is packaged in a synthetic resin film bag. It relates to a package. More specifically, the present invention relates to a package that maintains an oxygen atmosphere that does not cause anaerobic respiration in a low oxygen state caused by the respiratory action of shredded cucumber, and that also maintains conditions that suppress deterioration in quality due to discoloration due to oxygen. Things.

[0002]

2. Description of the Related Art Shredded cucumber maintains its respiratory action even after processing. And breathing is higher than before the cut. For this reason, it is necessary to prevent quality deterioration of the shredded cucumber during storage and distribution after processing and until eating.
In addition, the production form of shredded cucumber is produced at the Kat Yasai factory where hygienic management is well maintained. Shredded cucumber, by its nature, deteriorates quickly, and a polyethylene-based hermetic package is used to maintain freshness. After the sealed shredded cucumber is packaged, it immediately consumes the air in the bag, becomes anaerobic, and uses anaerobic respiration to consume nutrients, evaporate water quickly, and have a very short shelf life. Has become.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a desired oxygen concentration atmosphere for maintaining the freshness of shredded cucumber for a long time, and to supply products which do not generate an unpleasant odor, reduce nutrients and have no discoloration. Therefore, it is the result of intensive research, supplying the minimum amount of oxygen necessary for the survival of shredded cucumber and keeping the shredded cucumber in a hibernating state, so to speak, the decrease in sugar content and browning which are obstacles to high oxygen content Another object of the present invention is to provide a shredded cucumber packaging bag and a shredded cucumber-containing package body for supplying highly fresh shredded cucumber.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a package containing shredded cucumber made of a perforated synthetic resin film in which shredded cucumber is sealed, wherein the perforated synthetic resin film has an open area ratio of 1 × 10 ^{-5 to} 5 × 10 ^-5. × 10 ^-4 %, and the surface area in the bag per 100 g of shredded cucumber is 100 to 600 c
m ^2, and a shredded cucumber containing packaging having an average pore diameter of the pores is characterized Oh <br/> Rukoto in 10Myu～150myu,
In particular, it is preferable that the number of that hole is plural per packaging bag.

The perforated film used in the present invention may be any film as long as it can be used for packaging shredded cucumbers. Generally, non-stretched polypropylene, stretched polypropylene, polyethylene, Polyvinyl chloride, etc. are used, but other than these, such as films of polyamide, polyester, polycarbonate and the like, and further may be composite films of these, and even those provided with a sealant layer on the surface of these films There is no problem even if the film is antifogged. The thickness of these films is usually 20 to 70 μm. Further, these films may be transparent or opaque, and there is no problem even if the film is printed on the surface.

A packaging bag using the perforated film of the present invention is:
The open area ratio is determined by the amount of shredded cucumber to be packaged, and the open area ratio is 1 × 10 ^{−5 to} 5 × 10
It needs to be ^-4 %. The reason for this is to maintain the amount of oxygen and carbon dioxide in the packaging bag under conditions suitable for maintaining the freshness of the shredded cucumber. According to the experimental results of the present inventors, the oxygen concentration was 2% or more and 15% or less. And the ratio of the open area to satisfy these conditions is 1 × 1
0 ^{-5 to} 5 × 10 ^-4 %. Open area ratio is 1 × 10 ^-5
% Or less, the shredded cucumber becomes anoxic during the distribution process due to the respiratory action after packaging and starts anaerobic respiration, generating an off-flavor. The opening area ratio is 5 × 10
^{If it is -4} % or more, the amount of oxygen in the packaging bag becomes too large, which causes the discoloration phenomenon of the shredded cucumber, and the respiratory action of the shredded cucumber is activated due to the large amount of oxygen. However, there arises a problem that the shredded cucumber grows more than necessary and consumes nutrients. Therefore, the open area ratio of the perforated film used as a packaging bag for shredded cucumber is 1 × 10 ^{−5 to} 5 × 10 ⁻⁴ %.
And preferably 3 × 10 ⁻⁶ to 2 ×
It is more effective to be in the range of 10 ^-5 %.

It is desirable that the average diameter of the holes in the perforated film is as small as possible.
It is about 150μ, preferably 20-100μ. It is desirable that the pore size is as small as possible, but if it is 10 μm or less, the productivity of the perforated film is reduced. In addition, the average pore diameter is 1
If it is 50 μm or more, the number of holes required to obtain an appropriate opening area ratio decreases, and the quality accuracy of maintaining freshness becomes uneasy. Also, the shape of the hole, such as a circle, square or triangle,
Any shape may be used, and the average diameter in the major axis direction is 1
There is no problem if it is 50 μm or less, but a circular shape is preferable from the viewpoint of hole opening workability.

[0008] The number of holes per bag of the perforated film used for the shredded cucumber packaging bag is calculated from the ratio of the opening area and the average hole diameter. Holes may be blocked due to adhesion of contents or external conditions such as the attachment of a price list. To ensure freshness, a plurality of holes are preferable, and more than 5 holes per bag, It is desirable that the degree of influence per hole be 20% or less. Also, as a packaging bag for shredded cucumber, there is no problem even if it is a bag in the form of a three-sided seal bag, a four-sided seal bag or a gusset bag,
A tray, a cup or the like may be filled with shredded cucumber and then packed in a packaging bag.

[0009] The size of the packaging bag for shredded cucumber is 100 to 600 c per 100 g of shredded cucumber.
m ² , preferably 200-500 cm
² The reason for defining the inner surface area of the bag is to prevent the sealing portion, that is, the binding margin from being included in the calculation. The surface area in the bag is 10 per 100g of shredded cucumber
If it is 0 cm ² or less, the density of the shredded cucumber in the bag increases, and the shredded cucumber is scratched due to contact between the cucumbers, and is easily discolored. Absent. Furthermore, when the surface area in the bag per 600 g of shredded cucumber is 600 cm ² or more, the density of the shredded cucumber in the bag is reduced, the initial oxygen amount in the bag is large, and the oxygen supply amount is large in the opening area ratio, The respiratory action of the shredded cucumber becomes active and discoloration easily occurs, and the nutrients of the shredded cucumber are exhausted. In addition, the cost of the bag increases due to the large amount of the film used.

Although not limited to packaging of shredded cucumbers, the distribution process and temperature control at stores are naturally important points for maintaining the freshness of vegetables and the like. Depending on these temperatures, the respiratory volume increases as these temperatures increase, but the present invention assumes these temperatures to be 3-15 ° C.

[0011]

【Example】

<< Example 1 >> 250 mm × 350 mm inside thickness, thickness 5
1 kg of shredded cucumber in a three-sided sealed bag in which 170 holes having an average pore diameter of 80 μm are opened in a packaging bag made of a 0 μm nylon / polyethylene composite film so that the open area ratio is 4.9 × 10 ⁻⁴ %. Fill (the surface area inside the bag is 25
Since 0 × 350 × 2 = 175000 mm ² , the surface area in the bag per 100 g of shredded cucumber is 17500 m
m ^2, that is, 175 cm ² ), stored at 5 ° C., and the freshness after 3 days and 7 days was observed for odor generation and discoloration, and the results are shown in Table 1.

<< Embodiment 2 >> The same 50 μm thickness as in Embodiment 1
In Example 1, a packaging bag made of a nylon / polyethylene composite film was used, and a packaging bag having 16 holes having an average pore diameter of 40μ was used so that the opening area ratio was 1.2 × 10 ⁻⁵ %. 1 kg of the same shredded cucumber used was used, and the freshness after 3 days and 7 days was examined in the same manner as in Example 1. Table 1 shows the results.

<< Embodiment 3 >> A thickness of 50 μm similar to that of Embodiment 1.
In Example 1, a packaging bag made of a nylon / polyethylene composite film was used, and a packaging bag in which 28 holes having an average pore diameter of 80 μ were opened so that the open area ratio was 8.0 × 10 ⁻⁵ %. 1 kg of the same shredded cucumber used was used, and the freshness after 3 days and 7 days was examined in the same manner as in Example 1. Table 1 shows the results.

<< Comparative Example 1 >> Inner dimensions are 250 mm × 350 m
1 kg of the same shredded cucumber used in Example 1 in a non-porous packaging bag made of polyethylene having a thickness of 60 μm and a thickness of 60 μm.
Table 1 shows the results of checking the freshness after 3 days and 7 days after filling and filling in the same manner as in Example 1.

<< Comparative Example 2 >> A thickness of 50 μm similar to that of Example 1.
In Example 1, a packaging bag made of a nylon / polyethylene composite film was used, and a packaging bag having an average pore size of 60 μm was used to form an opening area ratio of 6.5 × 10 ⁻⁶ %. Fill 1 kg of the same shredded cucumber used,
Table 1 shows the results of examining the freshness after 3 days and 7 days in the same manner as in Example 1.

<< Comparative Example 3 >> A thickness of 50 μm similar to that of Example 1.
In Example 1, a packaging bag made of a nylon / polyethylene composite film was used, and a packaging bag in which 155 holes having an average pore size of 100 μ were opened so that the open area ratio was 7.0 × 10 ⁻⁴ % was used. 1 kg of the same shredded cucumber used
Table 1 shows the results of checking the freshness after 3 days and 7 days after filling and filling in the same manner as in Example 1.

[0017] Odor: ○ None, × Available Discoloration: ○ None, × Available

[0018]

By using the packaging bag of the present invention, the odor generated by the anaerobic respiration of shredded cucumber is prevented, and the digestion of nutrients by the anaerobic respiration is prevented.
Prevents browning due to excess oxygen and preserves the freshly cut cucumber for a long time.

Claims (4)

(57) [Claims] 1. A package containing shredded cucumber made of a perforated synthetic resin film in which shredded cucumber is sealed,
The open area ratio of the perforated synthetic resin film is 1 × 10 ^{−5 to} 5
× a 10 ^-4%, the bag surface area per shredded cucumber 100g is 100～600Cm ^2, perforated plastic
A package containing shredded cucumber, characterized in that the film has an average pore diameter of 10 to 150 μm . Wherein the number of said holes having one of the package is a plurality claim 1 Symbol placement shredded cucumber containing packaging body. 3. The method according to claim 2, wherein the opening area ratio is 3 × 10 ⁻⁵ to 2 × 1.
The package containing shredded cucumber according to claim 1 or 2, which is ^0-4 %. 4. The method of claim bag surface area per shredded cucumber 100g is 200~500cm ² 1,2 or
3. A package containing shredded cucumber according to 3 .