WO1994008463A1

WO1994008463A1 - Vegetables and fruit preservation bag

Info

Publication number: WO1994008463A1
Application number: PCT/JP1993/001512
Authority: WO
Inventors: Takahide Saito
Original assignee: Sumitomo Bakelite Company Limited
Priority date: 1992-10-20
Filing date: 1993-10-20
Publication date: 1994-04-28

Abstract

A vegetables and fruit preservation bag wherein one or both surfaces constituting a body portion of the bag consist of a porous plastic film or a porous composite film of plastic film and metal foil, paper, cloth, etc. having a plurality of pores having a mean pore diameter of 10 to 150 νm, an open pore area ratio of the porous film surface to the total inner surface area of the bag is from 1x10-7 to 2x10-4 % and a resealable mouth open/close mechanism is provided to the open portion at the upper part of the bag. The bag can stably preserve vegetables and fruit for a long time.

Description

Specification

Fruits and vegetables storage bag

Technical field

According to the present invention, the fruits and vegetables can be resealed to maintain freshness by continuing respiration under an appropriate oxygen atmosphere even after the fruits and vegetables are repackaged in a perforated plastic film bag. It relates to a bag for storing fruits and vegetables with a mechanism.

• Background technology

Fruits and vegetables continue to breathe after being harvested. Therefore, there is a need for a preservation method that prevents deterioration of the quality of fruits and vegetables during storage and distribution after harvest and until eating.

Conventionally, there are various types of bags for storing fruits and vegetables, which are generally provided as bags for storing fruits and vegetables, especially for films containing mineral substances, or for permeating oxygen and releasing moisture. A bag made of perforated film is marketed as a bag for storing fruits and vegetables. However, most of the films using these minerals (1) had poor transparency, and none of them could satisfy the reproducibility of the effect on the preservation of fruits and vegetables.

Furthermore, bags made of the above-mentioned film for general household use are marketed as bags for storing fruits and vegetables. When storing fruits and vegetables in these bags and storing them in a refrigerator or the like, the opening of the bag must be covered with a rubber band. It is a method that can be stopped or folded and stopped with a clip, etc., or tied and tied, and the sealing property is unstable, so it is not satisfactory because it lacks uniformity and stability of storage What won.

In addition, a method using a perforated film has been proposed as a method for maintaining the freshness of oxygen by supplying oxygen, breathing in a normal state for general fruits and vegetables (Japanese Patent Application Laid-Open No. 62-14824). No. 7 and Japanese Patent Application Laid-Open No. 63-119647), these films have an extremely large aperture area ratio of 2 × 10 ¹² to 2 × 10%. Even if the package is packed with oxygen, the oxygen in the bag is almost the same as the atmospheric state, which is the same as the open state.

On the other hand, Japanese Patent Application Laid-Open No. 54-79393 discloses that small pores having a diameter of 0.5 to 3.6 mm have a total pore area of 1.0 to 10 mm ² with a surface area of 600 cm ^z. A method of packaging ripening fruits in which a polyethylene film bag having a percentage of ripening is sealed is described.However, each pore is quite large, and taking the minimum value of the total pore area, While opening area ratio 1. is 6 7 X 1 0 one ^4% looking at the example, pore size 1. 5 mm 2 pieces hole or pore diameter 1. 0 mm hole four surface area 6 0 0 0 since those provided in a polyethylene bag cm ^2, open area ratio in this case is 5. 8 9 X 1 0 one ⁴ or ^{5. 2 3 X 1 0 ~ 4} %, the minimum value of the present invention It is almost 2.8 times larger, which means that there is too much oxygen ^! ^, And the pain of fruits and vegetables "^" becomes faster.

According to the research of the present inventors, fruits and vegetables need to supply a small amount of oxygen and maintain an oxygen amount within a range that does not cause anaerobic respiration. Has been found to be able to maintain its freshness over a long period of time.

JP-A-53-51096 discloses that a laminated film of a heat-sealable film and a film having a melting point higher than that of the heat-sealable film has a hole of 0.1 to 2 mm in diameter of lcm. ² per 2 5~: L 0 0 pieces arranged breathability A packaging material is described, but the actual packaged product is an oxygen scavenger containing hydrosulfite as a main material and disclosed in Japanese Patent Application Laid-Open No. 54-07793. It is one order of magnitude higher than the pore area ratio. Purpose of the invention

The object of the present invention was made as a result of various studies to solve the problem of the conventional bag for storing fruits and vegetables, wherein the film of the body constituting the bag was formed of a perforated film, and By providing a bag with a mouth opening and closing mechanism that can be resealed at the opening, the minimum amount of oxygen necessary for the survival of fruits and vegetables is provided, and by keeping the fruits and vegetables in a so-called hibernation state, An object of the present invention is to provide a bag capable of stably storing fruits and vegetables over a long period of time by suppressing browning and growth, which are obstacles to high oxygen content. Disclosure of the invention

In the present invention, one or both surfaces constituting the body of the bag may have pores having an average pore diameter of 10 to 150 m, preferably 40 to L0 m, and particularly preferably 50 to 80 ^. It consists of a plastic film or a composite film consisting of a plurality of plastic films and metal foil, paper, cloth, etc., and the ratio of the open area of the perforated film surface to the total inner surface area of the bag is 1 X 10 ^_7 to 2 X 10 ^_4 %, Which is a bag for storing fruits and vegetables, characterized in that a resealable mouth opening / closing mechanism is provided at the top opening of the bag. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a side view of a flat bag that is at least ordinary among the bags of the present invention: Preferred embodiments of the invention

The inside surface area of the bag for storing fruits and vegetables of the present invention is preferably 50 to 350 cm ² per 10 g of the fruits and vegetables to be filled.

The shape of the bag can be a flat bag, a gusset bag or a self-supporting bag. In particular, in the case of a self-supporting bag, it is preferable that the body of the bag has a shape drawn toward the inside of the bag and has a shape provided with a rib mechanism. Further, in the present invention, it is preferable that the zipper is provided with an uneven zipper for fitting and locking into the opening of the bag.

The plastic film constituting the bag for preserving fruits and vegetables of the present invention is not particularly limited, and may be any film, for example, polyolefin such as polyethylene and polypropylene, polyvinyl chloride, polyamide, polyester and the like. Or a functional multilayer film combining these plastics. For example, a material such as a two-layer film of nylon Z polyethylene is excellent in terms of washing and reuse. ing. In addition, there is no problem with a composite film made of a combination of plastic and other materials such as metal foil, paper, and cloth. — —

In addition, fruits and vegetables continue to breathe even after they have been harvested, and they must be replenished with appropriate oxygen in order to preserve them. For this reason, the film forming the body of the bag of the present invention has a fine structure. It is essential to make a hole, and the ratio of the area of the hole to the total inner surface area of the bag must be selected from the range of 1 X 10 "to 2 X ^10_4 %. fruits or vegetables when the area ratio is saved vegetables and fruits if 1 X 1 0- ^7% or less is there a risk cormorants want to anaerobic respiration, also 2 X 1 ◦ too permeate oxygen is equal to or one more than ^4% want In addition, respiratory action becomes active and long-term storage becomes difficult.

Further, the perforated film constituting the bag of the present invention may be one in which only one side of the body of the bag is opened or one in which both sides are opened. There is no problem even if the material of the front and back films is different, and the hole shape may be a polygon such as a circle, a triangle, or a rectangle, and the average diameter is 10 to 150; m. It is preferably from 40 to 80 xm, more preferably from 40 to 80 xm. If the pore size is 10 or less, processability is poor, and if it is 150 or more, the moisture evaporating from the fruits and vegetables goes out of the bag, which is not preferable. The number of holes in the hole is calculated based on the ratio of the opening area and the average hole diameter. The holes may be blocked due to adhesion of contents or external conditions such as the attachment of a price list.To guarantee freshness, multiple holes are preferable, and more than 5 holes are required per bag. However, it is desirable to reduce the degree of influence per hole to 20% or less. It is necessary for the number of holes to be more than one in order to avoid the danger in the event that holes are closed due to external factors.

In order to allow the water vapor IT to permeate only through the pores t, the aperture area ratio must be set to a large value of 0.1 to 3.0%. It is impossible to control gas and other gas, and oxygen gas is virtually free-passed, so in the case of the present invention, the sum of the water vapor transmission rate of the film itself and the water vapor transmission rate from the opening is used. water vapor transmission rate as the value is, 8 0 0 g JIT ² d one ¹ atm ^"1 below (2 5 ° C, measured at a relative humidity of 7 5%), preferably 8 0 gm one ² d one ¹ atm one ¹ below , particularly preferably der 1 0 gm one ² d one ¹ atm one ¹ below Adjust so that

The shape of the bag of the present invention is a flat bag, a gusset bag or a free-standing bag. The shape of the self-standing bag may be a Dipak-shaped bag or a square-bottomed bag. There is no problem if the part is squeezed upward, that is, a so-called bottle shape, or a part of the body part that is squeezed. It can be a self-standing bag that has a squeezed shape and a shape with a rib mechanism.

Further, the opening of the bag of the present invention needs to be provided with a mouth opening / closing mechanism capable of resealing, and a zipper-shaped one having an uneven shape for fitting and locking these mechanisms. However, it is desirable in terms of handling and, of course, must be excellent in sealing performance. Further, a zipper having a heat-sealed upper portion for improving the sealing property and having a virgin property can be used.

Further, according to the study of the present inventors, it has been found that the fruits and vegetables to be preserved have different respiratory volumes than expected depending on the type. Therefore, it is desirable to use different aperture ratios accordingly, but it is difficult to equip several types for general household use, for example, to produce 2-3 kinds of fruits and vegetables, for example. For leafy vegetables (the open area ratio of pores to the total surface area of the bag is 1 ^× 10-1ε to 2 × 10 ” ⁴ %), for fruits or root vegetables (both are not cut) However, bananas are an exception.) It is desirable to use two separate types such as (the ratio of the open area of the holes to the total inner surface area of the bag is 5 X 10 ^_7 to 5 X 10 ^_s %). However, for these, it is also possible to search for a method of specifying them by printing on the bag.

The leafy vegetables are spinach, broccoli, moloheiya, cabbage, Chinese cabbage, beans containing pods (eg, green soybeans), green peas, peppers, green onions, asparagus, etc. The fruits are apples, pears, grapes, power bosses, sudachi, etc. The root vegetables are onions, carrots, turnips, radish And so on. Bananas are exceptionally breathable among fruits, and need to be considered separately from ordinary fruits.

Naturally, temperature control during distribution and storage is an important point in maintaining the freshness of vegetables, etc., and the respiration of fruits and vegetables naturally depends on these temperatures. Although their respiratory volume also increases, the present invention assumes that these temperatures are between 0 and 15 ° C, usually between 5 and 15 ° C.

The bag for storing fruits and vegetables according to the present invention is a bag using a perforated film and having an opening / closing mechanism capable of being resealed. It has several levels of storage stability compared to storage in a bag made of non-porous plastic film, and has several times the storage stability of non-wrapped plastic film. In other words, while preventing the odor generated by anaerobic respiration of fruits and vegetables, and also preventing the digestion of sugar by anaerobic respiration, preventing browning, growth and ripening due to excessive oxygen, and maintaining the freshness of fruits and vegetables It can be stored for a long time.

The optimal range of the open area ratio and bag surface area did not seem to change much depending on the type of fruits and vegetables, but there was considerable variation in each optimal range, contrary to expectations. The respective optimum ranges are as follows. Spinach open area ratio ^{7 X 1 0 3 ~ 2 X} 1 0 one ^_40/0 bag surface area 2 0 0~ 9 OO c mV l OO g broccoli open area ratio ^{1 X 1 0 _s ~ 2 X} 1 0 _4% , bag surface area ^{1 0 0~ 7 0 0 cm 2} /1 0 0 g I catcher open area to Morro ratio 1 X 1 0 ~ 2 X 1 0 one ^4%

Bag surface area 6 0 0~ 2 0 0 0 cm 2/1 0 0 g sliced cabbage open area ratio ^{1 X 1 0 _s ~ 2 X} 1 〇 ^_4%

Bag surface area ^{1 0 0~ 6 0 0 cm 2} /1 0 0 g slice leek open area ratio 1 X 1 0 one ⁵ ~ 2 X 1 0 one ^4%

Bag surface area 2 0 0~ 3 5 0 0 c in 2/1 0 0 g Asparagus open area ratio 3 X 1 0 one ^s ~ 2 X 1 0 one ^4%

Bag surface area 50 to 60 O c mV l OO g Beans with syrup Open area ratio 1 X 10 ^_s to 2 X 10 ^_4 %

Bag surface area ^{2 0 0~ 6 00 cm z /} 1 0 0 g sliced onion open area ratio 1 X 1 0 one ^s ~ 2 X 1 〇 one ^4%

The bag surface area ^{1 0 0~6 0 0 cm 2/} 1 0 0 g slide ^ r scan carrot opening product ratio ^{3 X 1 0 _s ~ 2 X} 1 0 one ^_40/0

Bag surface area ^{1 0 0~ 6 00 cm 2/} 1 0 0 g slice old Li open area ratio 3 X 1 0 one ^c ~ 2 X 1 0 one ^4%

Bag surface area 100 to 600 cm ^z / 100 g Apple Open area ratio 1 X 10 to 5 X 10 ¹⁵ %

Bag surface area ^{1 0 0~ 60 0 cm z /} 1 00 g Banana open area ratio 7 X 1 〇 one ⁵ ~ 2 X 1 0 one ^4%

The bag surface area ^{1 0 0~ 6 0 0 cm 2} /1 0 0 g Example

Hereinafter, an example using the bag for storing fruits and vegetables of the present invention will be described.

Example 1

A bag with a zipper as shown in Fig. 1 and an inner diameter of 20 cm x 30 cm and a thickness of 25 μm. (one of four on one side) opened, and opening area ratio 1. 2 X 1 0- ^4%, spinach in the bag about 1 5 0 g put (spinach 1 0 0 g Ah was Li in the bag (Surface area: 800 cm ^z ) Close the zipper 4 in the opening 3 and store it in a refrigerator (about 10 ° C) for 7 days, then take it out and observe its odor and appearance.The result is almost the same as before storage. And it was edible enough. Comparative Example 1

A bag with the same size and thickness as in Example 1 but with a jigper.It is non-porous and packed with 150 g of spinach as in Example 1, stored in a refrigerator for 7 days, and then opened. saw. There was an odor, and soft rot was seen at the tip of the leaf, and he was hesitant to eat it.

Comparative Example 2

When the herb was placed in a newspaper and stored in a refrigerator for 7 days, it was found to be very wilted and not very edible. Example 2

In the bag with a zipper used in Example 1, 16 holes (average hole diameter: 40 μm) were opened (8 on each side), and a bag having an opening area ratio of ^1.7 X 10 ^_S % was used. tri Te apples 3 pieces of (Fuji) (8 2 5 g) insertion (apples 1 0 0 g bag surface area 14 5 _C m ^z Atari), after storage for 3 weeks in the refrigerator to seal closed the zipper I put it out and saw the taste. Apple 晾 is in a state before storage There was also a clear pattern of the cut surface, and the apple scent was also ample.

Comparative Example 3

An apple was used in the same manner as in Example 2 except that a bag having the same size as that used in Example 2 and four holes with a diameter of 5 mm were drilled (open area ratio 6.δ4X10 to ² %). 3 pieces were put, and the opening part was bent, and it was stopped with cellophane tape, put in a refrigerator, stored for 3 weeks, and taken out. The appearance was withered and the color of the skin was darkened, the taste was slightly blurred, the cut surface was blurred, and the pattern was not clear.

Example 3

From a two-layer film of nylon (thickness: 15 μπι) / polyethylene (thickness: 35 μππ) with a bag surface dimension of 15 cm × 20 cm and a base area of 60 cm ² (surface area: 660 cm ² ) becomes, 1 0 the mean diameter 5 0 mu Paiiota holes on both surfaces of the bag (5 on one side) opened, the jitter par with freestanding bag opening area ratio is 0 X 1 0- ^5% 3. filling the cut Tonegi 5 0 g (cut Tonegi 1 0 0 g per Ri in the bag surface area 6 0 0 cm ^z), sealed closed zipper, further said Jitsuba - heat sealing of by one, virgin property and sealing Was complete. This was stored in the refrigerator for 3 weeks and then removed. The cut leeks did not smell rotten when the bag was opened, regardless of the condition before storage.

Comparative Example 4

A self-standing bag with a zipper made of polyethylene film of the same thickness as that of the bag used in Example 3 and a self-standing bag with lint (50 g) were put in, the zipper was closed and sealed, taken out of the refrigerator and stored for 3 weeks, and then taken out. . The cut onion has started to softly decay on the leaf tip, and when the bag is opened, it is released by anaerobic respiration. Along with the fermented odor, the odor peculiar to leeks was too strong to use.

Example 4

A flat bag with a zipper as shown in Fig. 1 and having an inner dimension of 20 cm x 24 cm and a thickness of 35 μm in a stretched polypropylene bag. number (single-sided single zero by the) open, the open area ratio 1. 0 X 1 0_ ^4%, washed in the bag, a water-out re-treated sprouts placed about 2 5 0 g (bean sprouts 1 0 0 The bag surface area per g of 3 84 cm ² ), the zipper 1 of the opening 3 was closed, and it was stored in a refrigerator (about 10 C) for 5 days. The condition was almost the same as before storage, and it was edible enough.

Comparative Example 5

As in Example 4, 250 g of sprouts were packed in a nonporous flat bag of the same material, size and thickness as in Example 4, stored in a refrigerator for 3 days, and then opened. There was no browning or greening, but it had an odor and was hesitant for food.

Example 5 '

Figure: Zino, as shown here. "—A flat bag with an inner size of 15 cm x 20 cm and a thickness of 25 μm and a thickness of 25 μm. The body 1 of the bag 1 has eight holes 2 with an average pore size of 60 μm (4 per side). Open each, and make the opening area ratio 3.8 x 10 " ⁵ %, put about 200 g of green soybean in this bag (the inner surface area of bag per 100 g of green soybean is 300 cm ² ), Close zipper 4 in opening 3 and in refrigerator (about 5 ° C)

It was stored for 7 days, then taken out and observed for odor and appearance.The result was almost the same as before storage, and the taste was the same as freshly picked _c Comparative Example 6

Similar to Example 5, 200 _{g of} green soybeans were packed in a non-porous flat bag having the same material, size, and thickness as in Example 5, stored in a refrigerator for 3 days, and then opened. No browning or greening was observed, but there was some odor and the taste was not good due to the decrease in sugar content.

Example 6

A flat bag with a zipper as shown in Fig. 1 and having an inner diameter of 20 cm x 20 cm and a thickness of 25 Am Open 8 pieces (4 pieces per side), set the open area ratio to 2.8 x 10 " ⁵ %, put about 200 g of broccoli in this bag (per 100 g of broccoli) The inner surface of the bag is 400 cm ² ), the zipper 4 at the opening 3 is closed, and stored in a refrigerator (about 5 ° C) for 7 days, then taken out and observed for odor and appearance. It was almost the same as edible.

Comparative Example 7

In the same manner as in Example 6, 200 g of Protocollie was packed in a non-porous flat bag having the same material, size and thickness as in Example 6, stored in a refrigerator for 3 days, and then opened. No yellowing was observed, but the odor was strong, mold had developed, and decay had started.

Example 7

A flat bag with a zipper as shown in Fig. 1 and an inner diameter of 20 cm x 35 cm and a length of 30 m, a stretched polypropylene bag with 18 holes 2 with an average pore diameter of 60 m in the body 1 (9 pieces on one side) Open, set the open area ratio to 3.6 X 10 " ⁵ %, and put 100 g of Morohaiya into this bag. 1 400 cm ² ), close the zipper 4 in the opening 3 and store it in a refrigerator (about 5 ° C) for 7 days, then take it out and observe the odor and view Almost the same as the state of

Comparative Example 8

In the same manner as in Example 7, 100 g of Morohya was packed in a nonporous flat bag having the same material, size and thickness as in Example 7, stored in a refrigerator for 3 days, and then opened. No browning and wilting were observed, but the leaves had begun to darken and were hesitant to eat.

Example 8

As shown in Fig. 1, the body of a two-layer film bag made of nylon (thickness: 15 μπι) and polyethylene (thickness: 35 m) with inner dimensions of 32 cm x 35 cm and a zippered flat bag as shown in Figure 1 Drill 14 holes (7 on each side) with an average pore diameter of 8 Om in part 1 and make the open area ratio ^3.1 X 10 ^_S %. ^Put 1 kg of sliced cabbage in this bag (slice 100 g of cabbage was heated in a bag with a surface area of 224 cm ² ), the zipper 4 in the opening 3 was closed, stored in a refrigerator (about 5 ° σ) for 7 days, then removed and observed for odor and appearance. The fruits were almost the same as before storage, and were fully edible. Comparative Example 9

As in Example 8, 1 kg of sliced cabbage was packed in a nonporous flat bag of the same material, size and thickness as in Example 8, stored in a refrigerator for 3 days, and then opened. The fermentation smell was strong, and decay had begun.

Example 9

A flat bag with a zipper as shown in Fig. 1, measuring 20 cm x 20 cm Stretched nylon with a thickness of 30 m Stretched 2 layers of average diameter 6 Oitm 2 (16 holes per side) in the trunk 1 of a bag of two-layer film of stretched polystyrene, and open area ratio 1. 1 X 10 ^_4 %, put ⁶⁰⁰ g of banana in this bag

(Banana 1 0 0 bag surface area per g 1 3 3 cm ^2), to close the jitter par 4 openings 3, 2 0 ° save C for five days, save result of observation of the odor and appearance then removed almost unchanged from the previous state, to the thickness of very delicious _c

Comparative Example 1

Although 600 g was stored at 20 ° C for 2 days without packing the bananas, the odor did not change much but sugarpots were generated, and the product value in appearance was significantly reduced. there were.

Example 10

A flat bag with a zipper as shown in Fig. 1 and a double-layer film bag of nylon (thickness: 15ΠΙ) and polyethylene (thickness: 35 m) with inner dimensions of 32 cm x 35 cm and a thickness of 50 m 16 holes 2 (8 holes on each side) with an average pore diameter of 8 Om are opened in the body 1 of the bag, and the opening area ratio is 3.6 X 10 ^_s %. —Put g (100 g of sliced onion per bag in surface area of 2 24 cm ² ), close zipper 4 in opening 3, store in refrigerator (about 5 ° C) for 7 days, then remove to remove odor and appearance The result of observation was almost the same as the condition before storage, and was sufficiently edible. Comparative Example 1 1

In a non-porous flat bag of the same material, size and thickness as in Example 10, pack 1 kg of sliced onion as in Example 10 and store it in a refrigerator (about 5 ° C) for 3 days. I tried. The slicing surface became transparent and rot began: Example 1 1

It is a flat bag with a zipper as shown in Fig. 1 and is made of a nylon (15 m thick) / polyethylene (35 μm thick) two-layer film with an inner dimension of 25 cm x 35 cm and a thickness of 50 m. 40 holes 2 with an average diameter of 80 m in the body 1 of the bag

(20 pieces on each side) Open, set the open area ratio to ^1.1 X 10 ^_4 %, put 1 kg of shredded cucumber in this bag (surface area in bag per 100 g of shredded cucumber 1 7) 5 cm ² ), close the zipper 4 in the opening 3, store in a refrigerator (about 5 ° C) for 7 days, remove it and observe the odor and appearance. Was tolerable. Comparative Example 1 2

Example 11 As in Example 11, 1 kg of shredded cucumber was packed in a nonporous flat bag of the same material, size and thickness as in Example 1 and stored in a refrigerator (about 5 ° C) for 3 days. Then I opened it. It had discolored, had a strong odor, and had started to rot.

Example 1 2

A flat bag with a zipper as shown in Fig. 1 and having an inner dimension of 15 cm x 35 cm and a thickness of 30 m, a polypropylene bag with a thickness of 30 m has a hole 2 with an average pore diameter of 60 m in the body 1. each (one side by 2 01®) opened, the open area ratio 1. 1 X 1 0 one ^4%, bag surface area of 2 5 0 g put (per asparagus 1 0 0 g asparagus in the bag 4 20 cm ² ) Close the zipper 4 in the opening 3 and store it in a refrigerator (about 5 ° C) for 7 days, then remove it and observe the odor and appearance.The result is almost the same as before storage. not, blinking 7 this ₀ in what enough to meet the edible

Comparative Example 1 3

Using the same stretched polypropylene of 30 m thickness as in Example 12 Product ratio is 7. 0 X 1 0 over ⁴ ° /. As in Example 12, 250 _g of asparagus was packed in a flat bag having 94 holes with an average pore diameter of 100 m, and stored in a refrigerator (about 5 ° C) for 3 days. Then I opened it. There was no odor, but it had discolored and the tip had started to rot.

Example 13

It is a flat bag with a zipper as shown in Fig. 1 and has an inner dimension of 32 cm x 35 cm and a thickness of 50 im of nylon (thickness 15 / irn) / polyethylene (thickness 35 μm). 3 6 holes 2 with an average pore size of 80 / «m in the body 1 of the layer film bag

Opened (18 per side) Open hole area ratio 8.1 x 10— ^s ° / 0, and put 1 kg of shredded carrot in this bag (surface area of bag per 1〇0 g of shredded carrot 14 0 cm ^z ), close the zipper 4 in the opening 3, store it in a refrigerator (about 1 〇 ° C) for one day, remove it and observe the odor and appearance.The result is almost the same as before storage. They were edible enough. Comparative Example 14

As in Example 13, 1 kg of shredded carrot is packed in a non-porous flat bag of the same material, size and thickness as in Example 13 and stored in a refrigerator (about 5 ° C) for 3 days. I sealed it. The lactic acid fermented smell was strong, and rot had begun.

Claims

The scope of the claims

1. One or both sides of the body of the bag are made of a plastic film or a composite film made of plastic and metal foil, paper, cloth, etc., having a plurality of holes with an average pore diameter of 10 to 150. the opening area ratio of the perforated film surface against the total internal surface area given the resealable mouth closing mechanism has bag upper opening in 1 X 1 0 one ⁷ ~ 2 X 1 0 one ^4% A bag for storing fruits and vegetables.

2. bag surface area ^{5 0~ 3 5 0 0 cm 2} /1 0 0 g a fruit or vegetable storage bag Claims paragraph 1, wherein.

3. a water vapor transmission rate of 8 0 0 gm one ² ^d-1 atm ^_1 claim 1, wherein at a less or fruits or vegetables storage bag of the second Claims.

4. The bag for storing fruits and vegetables according to claim 1, 2 or 3, wherein the bag is a flat bag, a gusset bag or a free-standing bag.

5. Claims 1, 2, 3 or 4 wherein the bag is a self-standing bag having a shape drawn toward the inside of the bag on the body of the bag and having a rib mechanism. For storing fruits and vegetables. ―

6. A zipper having a concave-convex shape for engaging and locking a resealable mouth opening / closing mechanism for the upper opening of the bag according to claim 1, 2, 3, 4, or 5. Fruit and vegetable storage bag.

7. The bag for storing fruits and vegetables according to claim 6, wherein the upper part of the zipper is heat-sealed.

8. Claims 1, 2, 3, 4, 5, and 6 in which the fruits and vegetables are leafy vegetables or cut vegetables, and the ratio of open area is 1 X ^1-6 to 2 X ^10_4 % Ma Or the bag for storing fruits and vegetables according to Item 7.

9. leafy vegetables in spinach ants, open area ratio 7 X 1 0 one ^{^{5 ~ 2 X 1 0 "4}} %, wherein a bag surface area ^{2 0 0~ 9 0 0 cm 2} /1 0 0 g The bag for storing fruits and vegetables according to Item 8.

10. leafy vegetables is Purokkori one, open area ratio 1 X 1 0 ~ 2 X 1 0 ~ 4%, claims a bag surface area ^{1 0 0~ 7 0 0 cm 2} /1 0 0 g A bag for storing fruits and vegetables according to Item 8.

11. leafy vegetables are Jew, open area ratio 1 X 1 0 ~ 2 X 1'0_ 4%, claims a bag surface area ^{6 0 0~ 20 0 0 cm 2} /1 0 0 g No. 8. The bag for storing fruits and vegetables according to item 8.

12. leafy vegetables are sliced cabbage, open area ratio ^{1 X 1 0 _s ~ 2 X} 1 0- 4%, claims bag surface area ^{1 00~6 0 0 ^ ^ 2 1} 00 £ a is the 8. The bag for storing fruits and vegetables according to item 8.

13. The leafy vegetables are sliced green onions, and the open area ratio is 1 X 10 to 2 X

9. The bag for storing fruits and vegetables according to claim 8, wherein the bag has a surface area of 100 to ⁴ % and a surface area of the bag of 200 to 350 cm ² Z 100 g.

14. Leaves Vegetables are asparagus, open area ratio 3 X 10 to 2 X

9. The bag for storing fruits and vegetables according to claim 8, wherein the bag has a surface area of 10 to ⁴ % and a bag inner surface area of 50 to 600 cm ² Z 100 g.

15. leafy vegetables are legumes containing Saya, open area ratio ^{1 X 1 0 "5 ~ 2} X 1 0 _4%, is bag surface area ^{2 0 0~6 0 0 cm 2/} 1 0 0 g 9. The bag for storing fruits and vegetables according to claim 8.

16. a cut vegetables slices onion, a open area ratio 1 X 1 0 one ⁵ ~ 2 X 1 0 one ^4%, the bag surface area ^{1 0 0~ 6 0 0 cm z} Z l 0 0 g請 9. The bag for storing fruits and vegetables according to item 8 of the claim.

17. Cut vegetables are shredded carrots, open area ratio 3 X 1 0 one ^{^{5 ~ 2 X 1 0 _4%}} , according a bag surface area ^{1 0 0~6 0 0 cm 2/} 1 0 0 g 9. The bag for storing fruits and vegetables according to item 8 above.

18. Cut vegetables are sliced, and open area ratio 3 X 10 〜

2 X 1 0 one ^4%, the bag surface area ^{1 0 0~ 6 0 0 cm z} Z 1 00 g fruit and vegetable storage bag billed ranging paragraph 8 wherein the.

19. The fruits and vegetables according to claim 1, 2, 3, 4, 5, 6, or 7 wherein the fruits and vegetables are fruits and the open area ratio is 5 X 10 ^{_7 to} 5 X 10 ^{_ 5} %. Bag for storing things.

20. The fruit is an apple, the open area ratio is 1 × 10 ¹⁶ to 5 × 10 ^_s %, and the inside surface area of the bag is 100 to 600 cm ² Z 100 g. 9. The bag for storing fruits and vegetables according to item 9.

21. fruit or vegetable is banana, open area ratio ^{7 X 1 0 _s ~ 2 X} 1 0- 4%, the bag surface area ^{1 0 0~6 00 cm 2 Z 1} 0 0 first claims is g, A bag for storing fruits and vegetables according to paragraph 2, 3, 4, 5, 6 or 7.