JPS6042018A - Preparation of elsinan self-supporting film - Google Patents

Abstract

PURPOSE:To obtain the titled homogeneous film easily, steadily and continuously by pouring, spreading, heating and drying elsinan aqueous solution on an endless belt of heat-resistant plastics treated by corona discharge. CONSTITUTION:Elsinan aqueous solution (preferably containing water soluble inorganic substance of 0.04-2wt% to elsinan) 2 is poured and spread on the surface of heat-resistant plastic endless belt 3 treated by corona discharge device 8, then, heated and dried in a heating drier 4. Then elsinan film 6 being formed is peeled from the endless belt 3 and taken off by the take-up roll 7 to obtain the desired film. USE:Available for filmy food and filmy medicine including powdered food, granular medicine, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides self-supporting films of Ercinan (Selfs
The present invention relates to a method for producing an upporting film.

Elsinan belongs to the genus Elsinoe, as is clear from the descriptions in Japanese Patent Publication No. 55-27561 and Japanese Patent Application Laid-Open No. 53-121997, for example, when it is added to a nutrient medium containing sugars such as starch syrup and sugar. It is produced by culturing microorganisms with aeration and stirring, and separating and purifying the supernatant or P solution obtained by sterilization after culturing.

To produce a self-supporting film of Elcinan.

In order to increase the physical strength such as tensile strength and folding strength of the film, it is desirable to use high-purity El-7nan from which impurities such as inorganic substances have been removed as much as possible. Conventionally, the content of water-soluble inorganic substances is 0.01%. The following high purity ercinanes have been used:

In the case of manufacturing an ercinan film from a highly purified ercinan aqueous solution, the base material on which the ercinan aqueous solution is cast is a base material that allows the ercinan aqueous solution to be uniformly cast, and the formed L 7 It is necessary to select a base material from which the nanofilm can be easily peeled off. For example, in the case of the embodiment described in JP-A-54-52793, a metal plate and a chrome-plated metal opening are used. It is shown.

However, as is clear from the description in JP-A No. 54-52793, producing ercinane film by casting on these base materials requires a large amount of release agent to peel the film from the base material. Not only does it require sucrose fatty acid ester, but it also requires strict humidity control during exfoliation.

Despite these various controls.

Conventionally, it has been extremely difficult to stably and continuously produce an ercinan self-supporting film from an aqueous ercinan solution.

The present inventors have conducted extensive research into a method for stably and continuously producing a self-supporting film of ercinan without being limited to these conventional methods.

As a result, by casting an aqueous solution of El-7nan on an endless belt of heat-resistant plastic treated with corona discharge and heating and drying it, a uniform El-7nan film was easily formed, and by peeling it off, a uniform El-7nan film was formed. The present invention was completed by discovering that a self-supporting film can be produced stably and continuously.

In addition, the raw material ercinane used in the present invention is.

Unlike conventional methods, it does not require a high degree of purification, and surprisingly,
0.02-5. A film containing Ow/lW% of water-soluble inorganic substances can be produced without requiring strict humidity control, and the ercinane film has sufficient strength as a self-supporting film. This discovery was made and the present invention was completed.

The heat-resistant plastic referred to in the present invention refers to the temperature required to heat and dry the cast ercinan aqueous solution at a temperature of about 40 to 1000.
Any plastic can be used as long as it can withstand temperatures of 0.degree. C. For example, plastics such as polypropylene, polycarbonate, and polyester are used.

However, these heat-resistant plastics do not mix well with the ercinan aqueous solution as they are, and it is extremely difficult to form a uniform film on the surface of these plastics.

Therefore, the present inventors conducted a high-voltage discharge treatment on a film or sheet made of these plastics, for example, a corona discharge treatment according to the method described in Japanese Patent Publication No. 40-1.2383. It was found that an aqueous ercinan solution was uniformly cast onto these plastic films or notebooks, and furthermore, the ercinan film formed after heating and drying was found to be extremely easy to peel off.

In addition, at this time, these heat-resistant plastic films and sorting are made into an endless belt, and an aqueous solution of Elcinan is continuously cast onto this endless belt, and the self-supporting film of Elcinan is stabilized by heating and drying and peeling. We have discovered scales that can be produced continuously. Discharge treatment may be performed on the heat-resistant plastic film and sorted before forming the endless belt, but it may also be performed after forming the endless belt to avoid deterioration over time, or it may be applied continuously or intermittently during operation. It can also be done as appropriate.

It goes without saying that the ercinan aqueous solution referred to in the present invention mainly contains ercinan, but the ratio of 0.02 = 5. Ow/w%.

It is preferable to use a water-soluble inorganic material containing 0.04 to 20 w/w % of water-soluble inorganic substances. What is the content (w/w%) of water-soluble inorganic substances relative to ercinan in the present invention?

I completed it as follows. The L-7 nano content (4) in the ercinan sample is calculated by converting the ercinan sample into an OBW/vq6 aqueous solution and adding 3 times the volume of methanol to the solution at room temperature.The amount of sugar transferred to the precipitation part is measured by the anthrone method and expressed as the ratio (W/w%) of the amount of sugar contained in the precipitated part to the ercinan sample, and the water-soluble inorganic substance content (8) in the ercinan sample is First, the ignition residue after carbonization and then holding at 600°C for 16 hours was measured, and the ratio of ignition residue to the ercinane sample (w
/w%).

What is the water-soluble inorganic content (C) for ercinan?

Formula: %Formula% If necessary, other materials may be added to the ercinan aqueous solution, such as 1 flavoring agent 1 coloring agent, flavoring agent, natural thickening agent, cyclodextrin, protein, fat, oil, vitamin, hormone, antigenic substance, antibiotic. , physiologically active substances, viruses, spores, plant seeds, microcapsules, lecithin.

The film of the present invention can also be produced by appropriately mixing a plasticizer and the like, casting the mixture, and heating and drying it.

The concentration of the ercinan aqueous solution varies depending on the average molecular weight of ercinan, but is usually selected from a range of about 10 to 50 w/v%. Further, the thickness when casting the ercinan aqueous solution is preferably about 0.01 to 0.05 cm.

In the heat drying step, hot air or even hot air with a temperature of about 40 to 100° C. may be sent. The ercinan film formed by heating and drying in this manner is easily peeled off from the endless belt of heat-resistant plastic subjected to electric discharge treatment, and a self-supporting ercinan film is collected.

In the following, the method of the present invention for producing an ercinane self-supporting film will be explained according to the illustrated examples.

The ercinane aqueous solution (2) contained in the container (1) is continuously moved by a rotating roll (5) and applied to the surface of a heat-resistant plastic endless belt (3) that has been subjected to a corona discharge treatment by a corona discharge treatment device (8). After uniformly casting, the cast ercinan aqueous solution (2) is led to a heating drying device (4) and heated to dry to form an ercinan/film (6) on the surface of the endless belt (3), and further, Endless belt (3
) formed from ercinan self-supporting film (6
) is peeled off and wound onto a single take-up roll (7) to produce a self-supporting film of ercinan in multiple continuous manners.

The Er7nan self-supporting film thus obtained can be used as is as a water-soluble product 1, such as food, cosmetics, agricultural supplies, etc., depending on the material contained therein. In addition, other goods such as 1 food, cosmetics,
It can also be advantageously used as an edible or water-soluble packaging material for pharmaceuticals and the like.

In addition, if necessary, it is also possible to use Elsinan self-supporting film with printing, cutting Elsinan self-supporting film into a specific shape, or laminating it.
It is also free to use these by wrapping them in other packaging materials 1, such as aluminum foil or polypropylene film.

Examples of the present invention will be described below.

Example 1 Sucrose 5V//v% Yeast extract 0.2 w/
V%.

Corn staple liquor 0.5”/v%, K2HP
O4005w/vMgSO4・7H200,05”/
A liquid medium consisting of 200,001 w/v% of FeSO4.7H and water was sterilized at 120°C for 20 minutes, cooled, and the initial pH was adjusted to 60.
) IFO8417 was inoculated and cultured with aeration at 24° C. for 5 days. After culturing, the supernatant from which bacterial cells were removed by centrifugation is decolorized by adding activated charcoal according to a conventional method, and then partially purified by reverse osmosis membrane treatment and concentrated. ．． An approximately 15% w/w ercinane aqueous solution containing Ow/w% water-soluble minerals was prepared.

The average molecular weight of this ercinane was about 4 million, and the yield was about 40% based on the starting material, nyucrose.

Next, the Yersina/aqueous solution was continuously cast onto the endless belt surface of the corona discharge-treated polyester film, dried with hot air at about 60°C, and peeled off to a thickness of 0.02°C.
mm of Ercinan self-supporting films were produced continuously.

This film is transparent, edible, and can be advantageously used as a water-soluble packaging material.

Example 2゜D,E. 30 powdered starch syrup 4w/vchi, wheat germ 0.3
w/v%bNH4No30.1w/v%% K2HP
O40,1"/v%, MgSO4-7H200,05"
/v%, KCl O,05''/v%, Mn S'04
- A liquid medium consisting of 200,0001 w/v% 4H and water at 120°C.

After sterilizing for 20 minutes, it was cooled and the initial 1) H was set to 7.0, and Elsinoe leucosvira (Elsinoe
Eucospila) FERM-P 3874 was inoculated and cultured with aeration at 28°C for 4 days.

After culturing, use P solution to remove bacterial cells.

According to a conventional method, activated carbon is added to decolorize, then partially purified by H-type and OH-type ion exchange resins, and concentrated to obtain about 20 w/w/ml containing about 0.067 v% of water-soluble inorganic substances based on ercinane. A V% ercinan aqueous solution was prepared.

The average molecular weight of this ercinan was about 1 million, and the yield was about 65% based on the powdered candy used as the raw material.

Next, the aqueous ercinan solution was continuously cast onto the surface of the endless belt of polypropylene treated with corona discharge, and dried with hot air at about 80°C to form a self-supporting ercinan film with a thickness of 0.03 tea. Manufactured continuously.

This film is transparent and can be advantageously used as an edible, water-soluble packaging material.

Example 3 A raw material ercinan aqueous solution was prepared by mixing cherry flavor and a small amount of edible red coloring to the ercinan aqueous solution prepared by the method of Example 1.

Next, the aqueous ercinan solution was continuously cast onto the endless belt surface of the corona discharge-treated polycarbonate film, and dried with hot air at about 80° C. to continuously produce a self-supporting ercinan film with a thickness of 0.06 mm. .

Motoichi has a pink edible film that releases a cherry aroma when you put it in your mouth.

Example 4 A raw material ercinane aqueous solution was prepared by mixing a clathrate compound of t-menthol and β-cyclodextrin and a small amount of an edible green pigment into the sitaercinane aqueous solution prepared by the method of Example 2.

Next, it was cast onto the surface of an endless belt of polyester sheet treated with corona discharge, and dried with hot air at about 85°C to a thickness of 0.
03 mm of Ercinan self-supporting films were produced continuously.

Motoichi is a green edible film that releases a peppery aroma when you put it in your mouth.

Example 5 A raw material ercinan aqueous solution was prepared by mixing the ercinan aqueous solution prepared by the method of Example 1 with a clathrate compound of cinnamaldehyde and α-cyclodextrin and a small amount of an edible brown pigment.

Next, it was cast onto the surface of an endless belt of corona discharge treated polyester film and dried with hot air at about 95°C to a thickness of 0.
．． A 03 van Ercinan self-supporting film was produced continuously.

Motoichi has a brown edible film that spreads the aroma of Nirakei when you put it in your mouth.

[Brief explanation of the drawing]

The figure is a side view showing an example of an apparatus for carrying out the present invention. The reference numerals in the figure are number 9 of the first order. (11 is a container for an aqueous ercinan solution (2) is an aqueous solution of el 7 The winding roll (8) is a corona discharge treatment device Patent applicant: Hayashibara Biochemical Research Institute Co., Ltd.Representative: Ken Hayashibara 1 Indication of the case Patent Application No. 149993 of 1982 2 Name of the invention Method for manufacturing Elcinan self-supporting film 3 Person making the amendment Relationship to the case Patent applicant 4 1 of the specification to be amended - Details of the invention Item 5 of Explanation 4 Contents of the amendment (1) “To” in line 5 on page 5, line 10 on page 5, and line 5 on page 7 of the specification will be amended to “to”. (2) Specification Insert the following sentence between lines 9 and 10 on page 7 of the book. granular, grainy,
Materials in various shapes such as minced, fibrous, flaky, and flaky, such as furikake foods, granular medicines, powdered cosmetics, etc., are applied by a method such as a drop method or a blowing method, and then dried and fixed, or Furthermore, the surfaces of these various shaped materials were spray coated with an aqueous solution of ercinan and dried.
It is also free to manufacture the film of the present invention containing foods, medicines, cosmetics, etc. in various shapes by fixing the film. At that time, the furikake foods include, for example, roasted millet,
Cereals such as soybean flour, flaked roasted sesame seeds, peanut nuts, almond nuts, soybean flour, legumes such as flaked sweetened soybeans, cod made into rice flour, shrimp, krill, stretched squid, small fish, Seafood such as shellfish, shaved flakes, salted salmon crumbs, peeled cod roe, shishamo eggs, flaked bird and animal meat such as sohoroni and smoked meat, powdered chicken eggs, small grasses such as wallia, chlorella, scenedesmus,
Algae such as spirulina, flaky seaweed such as seaweed, wakame, and kelp, and granulated dried yeast are used as appropriate.

Claims (2)

[Claims] (1) During the production of Elnonane self-supporting film□. After casting an aqueous solution of ercinane onto an endless belt made of corona discharge-treated heat-resistant plastic and heating and drying it,
A method for producing a self-supporting ercinan film, which comprises peeling the ercinan film from the endless belt. (2) The ercinan aqueous solution is 00% compared to ercinan.
The manufacturing method according to claim (1), characterized in that it contains 2 to 50 w/w % of a water-soluble inorganic substance.