JPS58107133A - Thing for dehydrating food by contact - Google Patents

Abstract

PURPOSE:A macromolecular substance forming a gel containing a large amount of water by contacting with water is put in a pouch of a water-permeating membrance and the pouch is sealed to improve the resistance to water at the bonded part and change in strength according to water content. CONSTITUTION:A macromolecular substance that forms a water-insoluble gel containing a large amount of water, when coming into contact with water is put in a pouch of which at least a part is made of a water-permeating membrane, which does not permit the permeation of the substance at the dried particle state with heat-sealable property, and the pouch is heat sealed. As the above- mentioned macromolecular substance, are used sanitary goods, paper diapers, or products commercially available in the field or soil modification such as polymers being or getting soluble in water by hydrolysis, starch or cellulose. As a water-permeating film, is cited nonwoven fabrics with sufficiently fine pores made from a thermoplastic material or a thermoplastic film which has undergone forming process so that it has fine continuous pores.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a novel dehydrating tool for foods and the like.

In recent years, methods for total contact dehydration of foods have been invented extensively. JP-A-56-75054 uses a semi-permeable membrane such as a collodion membrane and a dehydration method using an organic compound water-absorbing agent; JP-A-56-124404 uses a semi-permeable membrane f: diaphragm; Powdered water-absorbing agents that are sticky and solidified with high-tension organic substances such as sucrose have been published.

Both of these methods use half-1R, IIP, such as collodion membranes, and combine it with the water absorption properties of water-absorbing polymers. This was achieved through the combination of `` and `` and `` and `` `` and `` `` and `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` `` ``. `` `` `` ``. `` ``. That is, the dried fish produced by contact dehydration according to these inventions can produce low-salt dried fish because only one change of salt is required;
Due to the high rate of water infusion, bacterial growth during the dried fish manufacturing process is
#j Since there is no need for drying or addition during the dehydration process, protein denaturation and self-digestion by the contained enzymes can be prevented, and dried fish can be made without large-scale rice cake manufacturing, etc. It has many features. However, the invention described in @ has not been put into practical use due to the following obstacles. In other words, in the case of a semipermeable membrane such as collodion, it swells with water, so sufficient water resistance strength cannot be obtained at the bonded part, and as the water absorbing agent absorbs water, the internal pressure becomes large rτ, resulting in peeling. There was a problem in that the adhesive part was subjected to such force that the dehydration tool was easily damaged. In fact, with semipermeable membranes such as collodion, the force of vomiting changes greatly depending on the water content, and this was a key point in product design.

The present invention improves on the drawbacks of the above.

The contact dehydration tool for foods of the present invention (d) is composed of a polymeric substance that forms a water-containing glue containing a large amount of water when it comes into contact with water, and a salty, heat-sealable diaphragm. Currently, the polymeric substances that form
Polymerizable monomers that are used commercially in the fields of disposable diapers, soil conditioners, etc., and that are water-soluble in polysaccharide moieties such as starch, cellulose, etc., or that become water-soluble by hydrolysis, e.g. , acrylic acid, methacrylic acid, acrylate, methacrylate, acrylic ester, methacrylic ester, acrylic amide, methacrylic amide, acrylonitrile, methacrylonitrile, maleic acid, sulfonated styrene, polyvinylpyridone Matakekowa et al.'s oligomers or cooligomers are graft-polymerized and hydrolyzed according to the necessary fQ, and the parent aqueous polymer is three-dimensionally bonded with nT using a crosslinking agent, polyethylene oxide, Hydrophilic polymers such as polypropylene oxide, polyvinylpyrrolidone, sulfonated polystyrene, polyvinylpyridine, polyacrylic monoisolate, polyacrylic acid amide, polymethacrylic acid salt, polymethacrylic acid amide, etc. are three-dimensionally made using a crosslinking agent. What is superimposed on
etc. are known. Commercially available products include PX-402A manufactured by Showa Seiko Co., Ltd., Sanwetsu IM-300 manufactured by Sanyo Chemical Industries, Ltd., and Aqua Keep 10SH manufactured by Seitetsu Kagaku Kogyo Co., Ltd. Examples of the crosslinking agent include polyols such as ethylene dalicol, trimethylolpropane, glycerin, polyoxyethylene glycol, and polyoxypropylene glycol (d-tri(meth)acrylic T-esters; Unsaturated polyesters obtained by reacting polyols with unabsorbed acids such as maleic acid; bisacrylamides such as N,N-methylene-bisacrylamide; reacting polyepoxides with (meth)acrylic acid; So- or tri-(meth)acrylic acid esters obtained from polyisocyanates such as tolylene diisocyanate, hexamethylene diisocyanate,
Carbamilnis 5-(meth)acrylate obtained by reacting with hydroxyethyl acrylate; allylated starch; allylated cellulose; - 1. Difunctional compounds that can be cross-linked under certain reaction conditions, such as methylol (/, (meth)acrylate, daryoxal, phthalic acid, Asobin R, Nigellendarikolunato, etc.), and also calcium. Oxide, Nisu Misaki Aai, and other types of salt are also used.

As a naturally sealable transparent film used for 4C and 1R], it is made from a thermal V-shield Aη material.
9 minutes V's own 100% non-woven fabric was made without water reform;-5iiJ・rI! From the electron beam temperature p4, etc.
4 mouths”・Tada! In the raw film, the film is 11 years old, 483 published by Shinokawa, all 4 temples are equipped with a foam sword [J Tamaishi St1 Hi Mono, or (d No 1 There are various types, such as those in which two fine holes are formed in the front by applying a nucleating agent with a high filling point and then forming two fine holes in the front by applying a nucleating agent with a high filling point. It has been known as a battery separator and a counterbalance.

This is because pores on the millimicron order such as 61 are not necessary, and the water permeability 1d improves as the pore diameter increases.

It is difficult to effectively adhere water permeable membranes, and sufficient water resistance strength cannot be obtained. This is because when the water-permeable film comes into contact with water, the water soaks into the adhesive surface due to cracking.

Since Fubaku is bonded by heat sealing and the base material is continuous, the water resistance is greatly improved, and in the case of heat sealing, it will stick if the temperature falls below the melting point, so it will take less time than adhesive bonding. The advantage is that it can be completed in a short amount of time. There are many processing machines on the market that use heat fusion, compared to the rolled and adhesive methods.
The 113 points that the existing Kaloe machine can use for the 11th is also large.

The present invention is a dehydration tool using a water-permeable membrane that is made of heat-sealable material and has much larger permeation pores than conventional semi-permeable membranes, and the present invention has the potential to be put to practical use in contact dehydration of foods, etc. Even if I say that, it's not a 'H' word.
If you use this service, please directly use EiQ! f! (1) Of course, materials that have the ability to come into contact with food after being torn (6. When using a material, no matter how strong a material is in absorbing water, there is a fatal drawback, which is a major impediment to practical application.

As a diaphragm, a fairly coarse non-woven fabric can also be considered,
The water-absorbing polymer itself is dry or does not absorb water, and its texture is rough: 1. L: It is inconvenient to be complacent and allow it to pass through, and there are naturally limits to its fertility. For convenience of heat seal coating, it is best that the thickness of the non-woven fabric is not too large.

In the dehydration device of the present invention, the water permeable membrane portion is
It doesn't have to be the whole thing, it can just be the part that comes into contact with water, and for the next month or so, there will be no problem even if the part that does not come in contact with the VCC to be dehydrated is a water-impermeable film like a normal polyolefin film. By doing this, it is possible to reduce the amount of use of the aqueous heat-sealable film, which is more efficient than that of a general film.

In addition, in the present invention, pulp or inorganic filler that does not permeate the water-containing 1.4 water-permeable film is used as a water-containing material.
Even if it is added together with melon, its working principle and function are exactly the same.

Next, the dehydration tool of the present invention and the contact dehydration method using the same will be explained in detail by way of examples.

Example 1 As a water-permeable heat-sealable diaphragm, a microporous membrane polyolefin film manufactured by Tanezu Chemical Industry Co., Ltd. (trade name: Cervore grade w-oB1) was used, and as a water-containing pore-forming material, a microporous membrane polyolefin film manufactured by Tanezu Kagaku Kogyo Co., Ltd. was used. ) PX-4o2A (modified polyacrylic mortar) was used as a water-absorbing agent (PX-402A).
) Distribute 1 piece of cloth evenly over 3.4 yen x 2-6
A dehydration tool was prepared by heat-sealing my 50-square vCquru Enoki using a pot bar type heat sealer.

Take out one of the 300 buds (288 grams), remove the legs, open the fleshy part, and make it into a flat shape (95 grams). Then, the top and bottom of the seven were placed between the two pieces of the above-mentioned weak tool. In addition, the A-4 version of the song book (approx. I Kr) is included throughout. This is to improve the contact between the dehydration tool and the object to be watered.

The test was carried out at a room temperature of 20-23"C. Time Masuji II
ritoj(ni, 7's Nt changed to the next rest Vko.

After 3 hours: 77 grams After 6:00 and 11:00 grams: 68 grams After 10-12 hours: 63 grams After 24 hours: 61 grams The free water content in raw squid is said to be 65-70%, so the above figure indicates that approximately 40 grams of free water is After 6 hours, I realized that I was dehydrated.

The product made in this way is in a half-dried state, and although it does not reach the level of 1 m, it quickly removes free water to 1 m.
As a result, it is possible to make dried fish with a low salt content that contains most of the bacteria in Group 1 without soaking it in water. Therefore, it would be advantageous to create prizes that are less harmful to hypertension. When observing the state of this water powder tool after absorbing water,
Even if it comes into contact with moisture, it has excellent water resistance.
Even after applying a load of 10 kg, no tearing was observed.

The same water absorption l31 as in this example (PX-402A manufactured by Showa Shiko Co., Ltd.) was placed between two sheets of cellophane measuring 17 m x 26 crn.
fs? In addition, in the same way, use incyanate adhesive to make a 501 square hole, and glue the 9 sides together.
When I looked at the water-resistance of the product that had been sprinkled with a gram of water to make it moist, I found that the adhesive part F of the grid that contained a lot of water had swelled considerably.
) and blocks, multiplying 10 by 9 Gi city, the adhesive will peel off in the 4th part of the square that contains a lot of water.1. It's connected to the buttocks. The parts that are still glued are still glued together.
De'-, Ita.

Example 2 A dewatering tool was used in which one side of polypropylene component paper (Kashi Yupo F P from Koko Yuka Synthetic Paper Co., Ltd.) was used, and the other side was made of PP nonwoven fabric (Nippon Vilene NF100P). I tried to dehydrate open barracuda. Polypropylene synthetic paper and PP nonwoven fabric were each cut into 20z x 30cWL, and PF
“5 grams of Zanwet IM-300 manufactured by Sanyo Chemical Industries, Ltd. was sprayed almost evenly on the surface of the nonwoven fabric. After that, it was covered with polypropylene synthetic paper and heat-sealed using a hot par type heat solar so that 24 square openings of 5σ angle were formed.The object to be dehydrated was ordinary cellophane (PT300 count) as in Example 1, except for the internal organs of raw barracuda. The wrapped product was used.The weight in this state was 1-185 grams.A dehydration tool was directed above and below this to form a PP non-woven inner mold 1, and about 11CJj was placed on top of the whole. An A-4 version of the book was placed on it to ensure good contact.The weight change during storage at room temperature from 20°C to 23°C was as follows.

After 3 hours: 160 grams After 6 hours: 144 grams After 12 hours: 133 grams After 13-24 hours: 124 grams In the case of white fish such as barracuda, if semi-dried food is made using this method, the fleshy part will be transparent and have high commercial value. It became a thing.

In addition to this example, semi-dried foods were made using various types of white fish and red fish, but it appears that white fish generally produces products with a part of the flesh that is cleaner.

In this example, polypropylene synthetic paper was used, but this product is water-impermeable, and general polypropylene films can be used to make one-piece products, but films with a high degree of stretching are stiff and heat-sealable. It tends to shrink due to heat sealing conditions, making selection of heat sealing conditions somewhat difficult.

Example 3 A large number of dents were made in advance by vacuum forming on a low-density polyethylene film (thickness 150 microns), Aqua Keep 10SH manufactured by Seitetsu Kagaku Kogyo Co., Ltd. 14- was sprinkled on it as a glue-forming substance, and then a layer of Aqua Keep 10SH manufactured by Seitetsu Kagaku Kogyo Co., Ltd. Example 1
The same water-permeable film used in Cellpore W-01
We attempted to dehydrate fresh oysters using a heat-sealed dehydration tool.

The indentation created by vacuum forming is cylindrical with a diameter of 85 mm and a depth of 8 mm. The sprayed Aqua Keep 10SH is a three-dimensional cross-linked product of sodium acrylate, and was sprayed in an average amount of 0.02 g per each depression. The overall thickness was 20 m, x 30 cm, and the concave portion was crushed to allow air to escape, making it less bulky. I used 355 grams of fresh Isaki, which was made open with the inner bag removed. Each weighed between 61 grams and 78 grams.

Place 5 pieces of open raw sashimi on top of the face plate of the water-permeable film of this dehydration tool, arrange them so that the open side is on the bottom, cover with a regular polyethylene film, and proceed to the previous step. As in the example, approximately I K9 to ensure sufficient contact.
I left it in a room temperature of 20-23"C for 6 hours.Then, I peeled off the raw sashimi from the H:0 water tool and weighed it, and it was 257 durams. When peeling off, there are 5 to 5 pieces of material stuck to the dehydration tool.
I can estimate that there is about 10 grams, so about 25 grams of liquid acid have been dehydrated.

This embodiment is an example in which a dehydration tool is used only on one side of the object. Also, unlike Examples 1 and 2, the dehydration tool was directly contacted with the normal cellophane without wrapping it, but in this case, +1+
: When the water moved in, it took a lot of time to peel it off, making it difficult to work, and it was easy to damage the grooved parts.

Example 4 Between two sheets of the same dehydration tool as used in Example 3, a piece of raw beef 4th edition 283 Durham with a thickness of approximately 8 g was placed in ordinary cellophane (P).
Insert each wrapped piece into T300 (T300), and
It was left at room temperature for 4 hours. As a result, the total weight of the four sheets was 204 grams. When this was further stored in a freezer at -3.0℃ and compared with that stored frozen for the same period without dehydration, it was found that there was no water skin on the surface of the frozen product, and even when thawed. It lacked the water spots and spongy texture that are characteristic of freezing, and had a taste similar to that of chilled food.

Hideo Fukaura, Patent Attorney, Showa Denko Co., Ltd.
1 17-

Claims (1)

[Claims] The polymer QjJ dEj, which envelops a large amount of water and forms a water-insoluble water-containing group when it comes into contact with water, is at least partially contained in a heat-sealable water-permeable membrane that cannot pass through the dry powder granule. A dehydrating and dehydrating tool for food, characterized in that it is sealed by heat sealing in a bag-like material comprising: