JP2006280330A - Fermented soybean product sealed with film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new fermented soybean product sealed with a film, having excellent heat and moisture retention and enabling the production of high-quality fermented soybean product. <P>SOLUTION: A sheet material composed of one or more non-perforated plastic films is used as a container. Boiled soybeans as a raw material of fermented soybean product are packaged and sealed in the container and fermented to obtain a fermented soybean product sealed with a film and packaged under normal pressure. As an alternative, a sheet material obtained by laminating an air/moisture permeable material to a film is used as the container, and boiled soybeans are packaged and sealed in the container and fermented to obtain the film-sealed fermented soybean product. The fermented soybean product is a film-sealed produced by packaging and sealing with other material after the fermentation treatment. A fermented soybean product having high quality can be produced by the use of a film-sealed state having excellent heat and moisture retention. The new film-sealed fermented soybean product is friendly to the environment. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a natto product in a specific container, and more specifically, a natto product in a container with excellent heat retention and moisture retention and good quality, which is easy to handle and has little dust generation. The present invention relates to a natto product in the form of a film seal. By using a new packaging form that can replace the conventional PSP container, the present invention enables production of natto with excellent heat retention and moisture retention, high quality, and less generation of garbage after use. The present invention provides a new film seal form that takes into account problems, and a natto product having the film seal form.

  Conventionally, as a container for natto products in a container, a cover container made of foamed styrene resin (PSP) has been mainstream. In this PSP container, the main body and the lid are integrated with each other via a hinge. Usually, a plurality of ribs are formed on the bottom and side surfaces of the main body in order to ensure ventilation to the whole raw boiled beans during fermentation. In addition, the small lid is formed with a plurality of small holes (see FIG. 1).

  When producing natto using this PSP container, normally, about half of the capacity of the container is filled with steamed soybeans, inoculated with natto bacteria, then covered with an apertured film, and if necessary, Sub-materials such as mustard and sauce are placed, the lid is folded and heat-sealed, and fermented in a fermentation room to produce a product.

  This PSP container is filled with steamed soybeans and natto bacteria before fermentation, fermented in the container to make natto, and suitable for fermentation as a packaging material for natto products that can be sold in that form after packaging. It was developed to satisfy all conditions such as heat retention, moisture retention, breathability, and filling, hygiene, and distribution preservability suitable for production and distribution. Although it is easy to handle and relatively easy to open, there are problems such as natto-specific odor and ammonia odor remaining, which necessitates washing or sorting after use.

  In addition, when incinerating PSP containers as waste, a high calorific value becomes a problem, and there is a tendency to reduce their use. Therefore, as a container that can replace the above PSP container, there is no need to wash or separate like a PSP container, and it can be opened more easily, and it is bulky as baggage when purchasing a product like a PSP container product. Furthermore, if a new type of natto product in a container that can suppress natto odor can be developed, it is expected that the demand for natto products will further increase.

  Conventionally, various attempts have been made to use a film material, a sheet material, or the like for a part of a natto container. Here, when some examples of those conventional techniques are exemplified, for example, (1) a sheet base material made of high-density polyethylene, low-density polyethylene, or the like is used as a coated sheet material of a natto container. (Patent Document 1), (2) Use a film obtained by embossing a base film as a top seal for covering the opening of the natto container (Patent Document 2), (3) Main in a natto container Use a casing film for partitioning the material and the secondary material (Patent Document 3), (4) Natto packaging container in which a laminated film is formed on the lid to prevent drying of the natto surface accommodated in the container body (Patent Document 4) ), Etc. have been proposed.

  In addition, other prior literature includes (5) a natto container in which a natto container lid is formed of a film (Patent Document 5), (6) a natto container lid made of perforated plastic film, paper, woven fabric, or non-woven fabric. Materials (Patent Document 6), (7) Natto formed by fermentation in an inner bag made of an open plastic film with small holes formed on the entire surface is filled, and the filled inner bag is further non-ventilated Natto package (Patent Document 7), (8) Steamed soybeans inoculated with natto bacteria contained in an open container and fermented with an edible film A natto manufacturing method (Patent Document 8) and the like have been proposed.

  Thus, conventionally, for example, a film material, a sheet material, or the like made of a material such as a PE film, a laminated film, a plastic film, paper, a woven fabric, a nonwoven fabric, or an edible film may be used for a part of the natto container. Various proposals have been made, but most of these use film material and sheet material as part of the lid of the natto container body. Examples of using film material and sheet material for the natto container itself are, for example, In addition, there are cases where decompression packaging is performed by combining an inner bag made of perforated plastic and an outer bag made of non-breathable plastic, and the natto packaging form is also made of expanded styrene resin (PSP). The situation was quite limited, especially in the case of the lidded container.

JP 2002-330718 A JP 2002-173191 A JP 2002-34470 A JP 2002-19870 A JP 2000-335542 A JP 2000-184862 A Japanese Patent Laid-Open No. 6-199386 JP-A-6-30720

  Under such circumstances, in view of the above prior art, the present inventors have conducted extensive research with the goal of developing a new form of natto product that can be substituted for the PSP containered natto product. By using a specific film seal form that combines a nonwoven fabric and a film (PE film, etc.), handling is easy, less dust is generated, and by using this film seal form, heat retention and moisture retention It has been found that it is possible to produce a high-quality natto product, and the present invention has been completed.

  The present invention is a problem or problem in conventional PSP container natto products: (1) easy handling, (2) compact container, (3) suppression of natto odor, and (4) garbage disposal problem. The purpose is to provide a new film-sealed natto product that is capable of fundamentally solving various problems such as response to the above, and that is excellent in heat and moisture retention and enables high-quality natto production. Is.

The present invention for solving the above-described problems comprises the following technical means.
(1) Non-perforated sheet material of one or more plastic film films is used as a container, and the raw boiled beans are packaged and fermented in this, and natto in a film seal form of atmospheric pressure packaging A natto product in the form of a film seal that is characterized as a product.
(2) A natto product in the form of a film seal as described in (1) above, wherein a sheet material obtained by stacking an air / humidity permeable material and the above film sheet is used as a container, and boiled beans are packaged and fermented. .
(3) The natto product in the form of a film seal according to (2), wherein the air / humidity permeable material is a nonwoven fabric.
(4) The natto product in the form of a film seal according to (3), wherein the nonwoven fabric has a thickness of 0.18 to 0.68 mm.
(5) The natto product in the form of a film seal according to the above (1), which is package-sealed in an arbitrary form such as a round, triangular, square, rectangular, hand-wound, rice ball, crepe, or parachute type.
(6) The natto product in the form of a film seal according to the above (1) or (2), which is optionally fermented, and optionally attached with a secondary material, and further packaged and sealed with other materials to form a natto product.

Next, the present invention will be described in more detail.
The present invention is characterized in that a sheet of a plastic film film such as a PE film is used as a container, and boiled beans as raw materials are packaged and sealed, and fermented to form a natto product in a film seal form. In addition, preferably, the raw material boiled beans are accommodated in a sheet material container in which a film and a nonwoven fabric are combined to produce a film-sealed natto product.

  In the present invention, a plastic film such as a PE film suitable for fermentation treatment is used as the film, and more preferably, for example, HDPE (high density polyethylene) is used. The same effect can be used as long as it can be used for fermentation treatment. Moreover, it is not necessary to form a small hole in these films, and a PE film or the like can be used as it is. In conventional materials, for example, there are cases where natto is vacuum-packed in a plastic bag or natto is filled in an open plastic bag with small holes formed on the entire surface, but without vacuum packaging, There are no examples that confirmed that natto can be produced with a coating such as non-open PE film.

  In the present invention, as the air / humidity permeable material to be used by being overlapped with the film, for example, a nonwoven fabric having a thickness of 0.18 to 0.68 mm is preferably used, but is not limited thereto. For example, paper, eco-sheet, etc., can be used in the same manner as long as they have the same or similar properties such as air / humidity permeability as the nonwoven fabric. When a non-woven fabric is used, it is possible to produce a natto product that is particularly excellent in heat retention and moisture retention and has high quality.

  As described above, in the present invention, preferably, a sheet material obtained by stacking a film sheet on a nonwoven fabric is used as a container, and the raw boiled beans are packaged and sealed with the sheet and subjected to a fermentation treatment. In the present invention, it is possible to use a single coated sheet, but in order to suppress drying deterioration of natto, depending on the type and thickness of the coated sheet, two or more coated sheets, for example, It is possible to use two or three coating sheets. In this case, the kind and thickness of the nonwoven fabric and the kind and thickness of the coating sheet can be arbitrarily designed according to the kind of natto product, the packaging form, the purpose of use thereof, and the like.

  As described above, in the present invention, preferably, the nonwoven fabric and one or two or more sheets of plastic film film are used as a container, and the raw material boiled beans are packaged and sealed in this, and the film seal is obtained. Formed natto products are produced. In this case, as the raw material boiled beans, for example, a very small soybean soaked in water for about 15 to 18 hours and boiled at 120 to 135 ° C. or higher for 20 to 30 minutes is used, but it is not limited thereto. In addition, boiled beans processed under appropriate conditions can be used according to the type, properties, product type, and the like of the raw soybeans. Further, as a packaging seal form, for example, it is possible to package and seal in any form such as round, triangular, square, rectangular, hand-wound, rice ball, crepe, parachute, etc. The configuration can be arbitrarily designed.

  Next, for example, after fermenting treatment, natto bacteria and steamed soybeans are packaged and sealed with a sheet material, this is arranged in a container of a fermentation chamber, and the fermentation conditions of ordinary natto products may be adopted and used in a conventional manner. In particular, it is not limited. In the present invention, after the fermentation treatment, if necessary, auxiliary materials such as mustard and sauce are attached, and further, packaging and sealing with other arbitrary materials can be made into a final product. In this case, examples of other materials include paper, PP, PE, etc., but are not limited to these, and any material can be used according to the target product form. .

  The film seal form of the present invention is excellent in heat retention and moisture retention, and enables production of a quality natto product. Currently, PSP containers are mainly used, but the film seal form of the present invention can be easily opened, and unlike PSP containers, there is no need to wash or separate after use. Similarly, it can be burned, and there is little generation | occurrence | production of garbage, and it can throw it away as garbage compactly. Further, the film seal form of the present invention makes it possible to produce natto products in a wide variety of forms, and to provide various production and product forms of natto products. Further, by adopting the film seal form of the present invention, it becomes possible to suppress the natto odor, deodorize and suppress the odor and ammonia odor unique to natto, and can be a new measure for consumers who are not good at the natto odor.

  As conventional materials, there are examples of natto packages in which natto is filled in a plastic film bag. However, in these cases, it has been essential to further vacuum-wrap or vacuum-wrap. The reason for this is that with conventional materials, for example, by using a bag made of a perforated plastic film with small holes formed on the entire surface, after fermenting in a breathable bag, the natto may be deteriorated by drying or stored. This is because vacuum packaging and decompression packaging are necessary from the viewpoint. On the other hand, in the present invention, by using a specific sheet material in which a nonwoven fabric and a PE film are combined without using a perforated film, unexpectedly good fermentation is possible, and drying deterioration There is no problem at all in terms of storage and storage, and therefore, for example, there is a need for a process for opening a film as in the case of conventional materials, and an excessive packaging process such as vacuum packaging and vacuum packaging. It is clarified experimentally that there is no such thing, and these are completely unpredictable from conventional materials and conventional common sense in the art.

  That is, as a conventional material, an open plastic bag having small holes formed on the entire surface is used as a container, and the container is filled with steamed soybeans inoculated with natto bacteria, and then fermented. There is an example of decompression packaging in an outer bag made of permeable plastic film, but since this type of natto is filled in an open container, the outer bag made of non-breathable plastic film as the final product form It is essential to pack under reduced pressure. On the other hand, in the present invention, a sheet material with a non-open plastic film film is used as a container, and good fermentation can be expected, and it is not necessary to pack the outer bag under reduced pressure. An exceptional advantage that is not available in conventional products is that it can provide a natto product in the form of a coat sheet that can be distributed.

The following effects are exhibited by the present invention.
(1) It is possible to provide a natto product in a film seal form which is a new packaging form.
(2) It is possible to provide a natto product in a new film seal form that can fundamentally solve the problems of conventional natto products in a PSP container.
(3) High quality natto can be produced with excellent heat retention and moisture retention.
(4) Like a PSP container, there is no need to wash or separate after use.
(5) There is little generation | occurrence | production of garbage, and it can process as burning garbage.
(6) Natto can be manufactured in a wide variety of forms such as circles, triangles, squares to stars.
(7) It is possible to produce natto with deodorizing and suppressing the odor unique to natto and ammonia odor.
(8) When a product is purchased, it is not bulky like a PSP container and can be easily opened.
(9) There is almost no deterioration due to drying seen in conventional natto products in a simple packaging form.
(10) Good fermentation and production of high quality natto can be realized without using a bag made of an apertured film.

  Next, the present invention will be specifically described with reference to test examples and examples, but the present invention is not limited to the following test examples and examples.

Test example 1
Use 1) non-woven fabric + top seal (inside), 2) top seal, 3) film, 4) film + Kimwipe, and add boiled beans to them, sandwich them in a triangle, and paste the two sides Or, it was fermented by immersing in any form. The raw soybean was made of very small grains, immersed in water for 18 hours, cooked at 131 ° C. for 23 minutes, and fermented.

  As a result, fermentation was impossible with only 1) non-woven fabric + top seal and 2) top seal. 3) Fermentation was possible only with the film. 4) Fermentation was possible if the outer material had a certain degree of air / humidity permeability, such as film + Kimwipe. Moreover, as a result of performing sensory evaluation (A to D4 stage) of the appearance, stringing, fragrance, hardness, and taste of the obtained natto products, 1) Nonwoven fabric + top seal, and 2) Top seal, D evaluation 3) Only film and 4) Film + Kimwipe were rated as A. As a result, it was found that only the film and the film + air / humidity permeable material are effective for fermentation.

  In addition, the sensory evaluation of the quality of natto products is a four-stage evaluation of A to D according to the evaluation criteria shown in Table 1 by a specialized panelist regarding the evaluation items such as appearance, stringing, aroma, hardness, and taste. went.

Test example 2
As container, 1) film + non-woven fabric, 2) film, 3) film + paper, 4) film + bubble wrap sheet (foamed on the surface), 5) film + eco sheet, and boiled beans , They were sandwiched between triangles, the two sides were pasted and fermented. The raw soybeans were very small grains, soaked in water for 18 hours, cooked at 131 ° C. for 23 minutes, and fermented. Fig. 2 shows a film seal form in which raw material boiled beans are packaged and sealed in a triangular shape using a film + nonwoven fabric, a film, and a film + paper as containers, and the appearance of natto manufactured using each sheet material. (Photo). In the case of film + nonwoven fabric, the best fermentation state and sensory evaluation were obtained.

  As a result, in all cases, the fermentation was carried out without any problem, but it was found that the film + nonwoven fabric was the best in the comprehensive evaluation of fermentation and sensory evaluation, and the ideal was the film + nonwoven fabric.

Test example 3
As a container, 1) 1 film, 2) 2 film layers, and 3) 3 film layers were used. As a result, although fermented without problems in any case, as a result of the sensory evaluation of the quality of the natto product, with one film, the stringing was evaluated as B, the fragrance was evaluated as C, and the others were evaluated as D. In the case of two layers of coatings and three layers of coatings, all were A evaluations.

  The nonwoven fabric was cut into 14 cm square, and a 12 cm square film was attached to the inside. 45 g of boiled beans were placed on this film, sandwiched between triangles with the above nonwoven fabric / film, and the two sides were pasted and fermented. The raw soybeans used very small grains, soaking in water for 17 hours, cooking at 131 ° C for 23 minutes, and fermentation at 36-48 ° C. As the nonwoven fabric, Stratec PP (manufactured by Idemitsu Conitec Co., Ltd.) was used. The types are shown in Table 2.

  The obtained natto product was subjected to sensory evaluation of appearance, stringing, aroma, hardness, and taste. All of the nonwoven fabrics having a thickness of 0.18 to 0.68 mm were fermented without problems. In addition, Table 3 shows the moisture value of natto.

  Regarding the sensory evaluation and the moisture value of natto, there was no difference in the type (thickness) of the nonwoven fabric, and the sensory evaluation was excellent. Depending on the thickness of the non-woven fabric, processing suitability such as bending at work differs, but it is thought that changing the thickness of the non-woven fabric according to the form and ease of processing does not affect the quality.

  As described above in detail, the present invention relates to a natto product in a novel film seal form, and according to the present invention, a new film seal form that is excellent in heat retention and moisture retention and enables high-quality natto production. Natto products are provided. The present invention provides a new natto product in the form of a container that is free from natto odor and has no aging problems, and is free from trash treatment problems seen in conventional natto products in the form of a PSP container. It is. The present invention provides new forms of natto products that are environmentally friendly, such as post-use treatment and garbage disposal problems, and provides various natto products and the product form of new natto products in the near future. Useful.

A conventional PSP container is shown. The film seal form in which each sheet material of film, film + nonwoven fabric, film + paper is package-sealed in a triangle and the appearance (photo) of natto manufactured using each sheet material are shown.

Claims (6)

  One or two or more non-open plastic film film sheet materials are used as containers, and the raw boiled beans are packaged and fermented to form a natto product in the form of a film seal form of atmospheric pressure packaging. A natto product in the form of a film seal.   The natto product in the form of a film seal according to claim 1, wherein a sheet material obtained by stacking an air / humidity permeable material and the film sheet is used as a container, and the raw boiled beans are package-sealed and fermented.   The natto product in the form of a film seal according to claim 2, wherein the air / humidity permeable material is a nonwoven fabric.   The natto product in the form of a film seal according to claim 3, wherein the nonwoven fabric has a thickness of 0.18 to 0.68 mm.   The natto product in the form of a film seal according to claim 1, which is package-sealed in any form such as a circle, triangle, square, rectangle, hand-wound, rice ball, crepe, or parachute.   The natto product in the form of a film seal according to claim 1 or 2, wherein a secondary material is optionally attached after the fermentation treatment, and further a packaging seal is made with another material to obtain a natto product.