JP2021013335A - Edible film - Google Patents

Abstract

To provide an edible film having excellent light resistance.SOLUTION: An edible film contains a colored plant, inorganic substance and a base material. The inorganic substance includes bivalent metal ions. Relative to the edible film, bivalent metal ions are contained by 0.75-6 mass%. There are also provided a method for improving the light resistance of an edible film and a method for improving the punching workability of an edible film.SELECTED DRAWING: None

Description

The present invention relates to an edible film containing a colored plant and having excellent light resistance. The present invention also relates to a method for improving light resistance and a method for improving punching processability of an edible film.

Conventionally, film-shaped or sheet-shaped foods (sometimes collectively referred to as "edible films" in the present specification) have been provided for the purpose of decorating foods such as confectionery and frozen confectionery and beverages. ing. In such an edible film, an edible pigment or the like is blended with a base material such as starch, agar, or cellulose to impart decorativeness.

Further, in order to improve the flavor of the edible film when coloring it, a film using a colored edible plant has also been proposed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2012-249585

Such an edible film may be placed under light irradiation conditions such as lighting in a state where it is arranged as a decoration for food and drink, for example. Under such light irradiation conditions, there is a problem that the dye fades and the color of the edible film becomes dull. In particular, when a colored plant is used for coloring the edible film, the problem of fading may occur remarkably.

The present invention has been made in view of such a problem, and an object of the present invention is to provide an edible film having excellent light resistance.

As a result of studies to solve the above problems, it was found that the light resistance is improved by containing a predetermined amount of an inorganic substance containing a divalent metal ion in an edible film containing a colored plant and a base material, and the present invention has been made. It has been completed. Specifically, the present invention is as follows.

[1] An edible film containing a colored plant, an inorganic substance, and a base material.
An edible film containing divalent metal ions and containing 0.75 to 6% by mass of the divalent metal ions with respect to the edible film.
[2] The edible film according to [1], which contains 10 to 80% by mass of the colored plant.
[3] The edible film according to [1] and [2], which contains 3.0 to 40% by mass of glycerin.
[4] The edible film according to [1] to [3], wherein the colored plant contains at least one of carotenoid, chlorophyll and tannin.
[5] The edible film according to [1] to [4], wherein the divalent metal ion is calcium or barium.
[6] A method for improving the light resistance of an edible film containing a colored plant, an inorganic substance and a base material.
A method for improving the light resistance of an edible film, which comprises adjusting the content of divalent metal ions as an inorganic substance in the edible film to 0.75 to 6.0% by mass.
[7] A method for improving the punching processability of an edible film containing a colored plant, an inorganic substance, and a base material.
The content of divalent metal ions as an inorganic substance in the edible film was adjusted to 0.75 to 6.0% by mass.
A method for improving punching processability of an edible film, which comprises further adding glycerin to the edible film and adjusting the content of the glycerin with respect to the edible film to 3.0 to 40% by mass.

According to the present invention, an edible film having excellent light resistance is provided.

Hereinafter, embodiments of the present invention will be described.
The edible film according to the present embodiment contains a colored plant, an inorganic substance, and a base material, and contains a predetermined amount of divalent metal ions as the inorganic substance.

In the present embodiment, by incorporating a colored plant, an excellent flavor derived from the plant is imparted to the edible film, and a color is also imparted to be excellent in decorativeness. An edible film containing such a colored plant may have a problem of inferior light resistance, but in the present embodiment, by containing a predetermined amount of divalent metal ions as an inorganic substance, the light resistance is excellent. It can be used, and it has excellent decorativeness to foods and drinks even under conditions of being exposed to light for a long time.

(1) Colored plants The colored plants used in the present embodiment are not particularly limited as long as they are edible and have colors suitable for decoration.
Colored plants preferably contain at least one of carotenoids, chlorophyll and tannins. Colored plants having these often have colors suitable for decoration, and can be particularly preferably used in the present embodiment. In addition, when a colored plant containing carotenoid, chlorophyll, tannin, etc. is used, there may be a concern about fading due to light irradiation, but in the present embodiment, such fading is suppressed.

In the present embodiment, examples of colored plants include not only vegetables, fruits, grains, teas, beans / nuts, potatoes, but also algae, mushrooms, and the like.
The plants (vegetables, fruits, grains, teas, beans / nuts, potatoes, algae, mushrooms, etc.) that can be used in the present embodiment are not particularly limited as long as the effects of the present embodiment are exhibited. The following can be exemplified.

Vegetable types include tomatoes, eggplants, pumpkins, peppers, bitter melons, nabella, togan, okura, edamame, pods, sardines, sardines, cabbage, corn, cucumbers and other fruit vegetables, carrots, gobos, onions, bamboo shoots, lentils, Root vegetables such as turnips, radishes, potatoes, sweet potatoes, purple potatoes, sweet potatoes, rakkyo, garlic, ginger, moroheiya, asparagus, celery, kale, yomogi, bok choy, spinach, komatsuna, cabbage, lettuce, Chinese cabbage, broccoli, cauliflower, Examples include leafy stems such as turnips, parsley, onions, shungiku, and nira.
Fruit types include apples, strawberries, kiwi fruits, grapes, peaches, pineapples, guava, bananas, mangoes, acerolas, prunes, blueberries, hascups, papayas, passion fruits, plums, pears, apricots, lyches, melons, and pears. , Sumomo, citrus fruits (orange, Wenzhou citrus, lemon, grapefruit, lime, mandarin, yuzu, shikuwasa, tangerine, temple orange, tangelo, calamancy, etc.) and the like.

Examples of cereal types include rice, barley, wheat, adlay, buckwheat, rye, Japanese millet, millet and the like.
Teas, green tea (including matcha, etc.), black tea, oolong tea, and other tea plants; herbs such as rose hips, peppermint, lemongrass, cinnamon, rosemary, and lavender can be mentioned.
Examples of the types of beans and seeds include coffee, cacao, adzuki beans, soybeans, chickpeas, mung beans, lentils, almonds, cashew nuts, chestnuts, coconuts, sesame seeds, pistachios, peanuts, and sunflower seeds.
Examples of the type of potatoes include potatoes, sweet potatoes, taros, yams, and Jerusalem artichokes.
Examples of algae include sea lettuce, green laver, kelp, hijiki seaweed, and wakame seaweed.
Examples of mushrooms include enokitake mushrooms, oyster mushrooms, shiitake mushrooms, beech mushrooms, hon-shimeji mushrooms, nameko mushrooms, king trumpet mushrooms, oyster mushrooms, maitake mushrooms, mushrooms, and matsutake mushrooms.

The above-mentioned colored plants (vegetables, fruits, grains, teas, beans / nuts, potatoes, algae, mushrooms, etc.) can be used alone or in combination of two or more.
Among the above, from the viewpoint of color and flavor, green-yellow vegetables such as carrots, tomatoes, kale, peppers and mugwort, fruits such as grapes, and teas such as matcha are particularly preferable.

Colored plants can be blended after being squeezed, crushed, ground, crushed, etc. before being blended into an edible film, and are appropriately dried, roasted, etc. before and after these treatments. You may. As the form of the obtained colored plant, various forms such as juice, puree, paste, and powder can be taken.

The blending amount of the colored plant in the edible film can be, for example, 10 to 80% by mass, further 20 to 60% by mass, and further 20 to 50% by mass. it can. Within such a range, the color of colored plants is effectively imparted, and an edible film having further excellent strength such as light resistance and die-cutting suitability can be obtained, and other components (inorganic substances, base materials, etc.) A sufficient amount of the compound can be secured.
In addition, in this specification, the compounding amount in an edible film and the compounding ratio of compounding components are expressed by the dry mass excluding water unless otherwise specified. For example, when the above-mentioned colored plants are added in an aqueous solution such as juice, puree, paste, or a water suspension, the blending amount (% by mass) is the colored plants (dry solid content) with respect to the edible film (dry mass). expressed.

(2) Inorganic matter The inorganic matter used in this embodiment contains divalent metal ions. The divalent metal ion imparts a light resistance improving effect for colors from colored plants. In addition, unlike monovalent metal ions such as sodium and potassium, and trivalent metal ions such as trivalent iron, divalent metal ions are less likely to affect color and taste, and divalent metal ions are strong in edible films. Since it also imparts effects such as improvement and improvement in punching workability, it can be suitably used in the present embodiment from these viewpoints as well.

The divalent metal ion is preferably calcium, barium or magnesium, more preferably calcium or barium, and particularly preferably calcium. These are suitable because they do not easily affect the taste and color of the edible film.
Examples of the food material containing the divalent metal ion include seaweed calcium, eggshell calcium, shell calcium, calcium chloride, salt and the like, and seaweed calcium, eggshell calcium and shell calcium are preferable because they do not easily affect the flavor. .. Further, from the viewpoint of allergies, seaweed calcium and shell calcium are particularly preferable.

The inorganic substance preferably contains 0.75 to 6.0% by mass as a divalent metal ion content with respect to the edible film. When the divalent metal ion content is in such a range, the effect of improving the light resistance of the edible film becomes more excellent.
From the viewpoint of improving the light resistance improving effect, the divalent metal ion content with respect to the edible film is more preferably 0.9 to 4.5% by mass, and 1.5 to 4.5% by mass. It is particularly preferable that it is%.
The content of divalent iron in the edible film is more preferably 0.05% by mass or less, more preferably 0.03% by mass, because it may affect the odor of the edible film. The following is particularly preferable.

(3) Base material The base material used in the present embodiment is not particularly limited as long as it is generally used for an edible film. Specific examples thereof include polysaccharides such as agar, gelatin, cellulose, pullulan, alginic acid, pectin, guagam, konjac, and xanthan gum. Among these, agar, gelatin, cellulose, and pullulan are particularly preferable, and agar and cellulose are more preferable, because the strength of the edible film can be easily adjusted to a desired range and the shape of the edible film can be easily maintained.

The blending amount of the above-mentioned base material in the edible film can be, for example, 10 to 75% by mass, further 13 to 73% by mass, and further 15 to 70% by mass. it can. Within this range, the strength and processability of the edible film will be more excellent, and the blending amount of other components (colored plants, inorganic substances, etc.) can be sufficiently secured, and the color and light resistance of the edible film can be secured. It becomes easy to make the sex excellent.

In the edible film according to the present embodiment, the compounding ratio of the colored plant and the base material is preferably colored plant: base material = 10:90 to 80:20, and is preferably 20:80 to 60:40. Is particularly preferred. By setting the blending ratio within the above range, it becomes easy to make the strength and processability of the edible film excellent, and it becomes easy to make the color and flavor of the edible film excellent.

In the edible film according to the present embodiment, the blending amount of glycerin is preferably 2 to 40% by mass, more preferably 3 to 30% by mass, and particularly preferably 5 to 25% by mass. By setting the compounding ratio within the above range, it is easy to adjust the strength to improve the accuracy of punching without significantly impairing the light resistance of the edible film, so that a product having a more tasteful shape is provided. It becomes easy.

(4) Other components, etc. In the edible film according to this embodiment, water is usually used as the solvent / dispersion medium. The water that can be used is degassed in advance, regardless of the type of hard water or soft water, as long as it is suitable for eating and drinking and can meet the above-mentioned requirements for divalent metal ions. Water may be used.

In addition to the raw materials described above, the edible film according to the present embodiment may contain amino acids, vitamins, sweetening agents, flavors, acidulants, functional ingredients and the like as long as the effects of the present embodiment are not impaired. Good.
Examples of amino acids include alanine, glutamine, glutamic acid, leucine, isoleucine, theanine and the like.
Examples of vitamins include vitamin C, vitamin E, vitamin D, vitamin K and B vitamins.
Examples of the sweetener include sugars such as sucrose, fructose, glucose, fructose-dextrose liquid sugar, and reduced malt sugar; sweeteners such as sugar, granulated sugar, isomerized sugar, xylitol, palatinose, and erythritol; aspartame, acesulfam potassium, High-sweetness sweeteners such as neotheme, stevia extract, saccharin, and sclarose; sugar alcohols such as sorbitol may be mentioned, and sugarless bulk sweeteners, bulk sugar sweeteners, and the like may be further included.
Examples of the flavoring include flavors extracted from citrus fruits and other fruits, plant seeds, rhizomes, bark, leaves and the like or extracts thereof, flavors obtained from milk or dairy products, synthetic flavors and the like.
Examples of the acidulant include citric acid, trisodium citrate, adipic acid, gluconic acid, succinic acid, tartaric acid, lactic acid, fumaric acid, malic acid and the like.
Examples of functional ingredients include collagen, chondroitin sulfate, glucosamine, hyaluronic acid, placenta, oyster extract, chitosan, propolis, royal jelly, tocopherol, polyphenol, caffeine, saponin, plum extract, aloe, reishi, and agarix. Be done.
These additives can be used alone or in admixture of two or more.

In addition, the edible film of the present embodiment may also contain various esters, emulsifiers, preservatives, seasonings, colorants (pigments), oils, pH adjusters, quality stabilizers and the like.

The pH of the edible film according to the present embodiment is not particularly limited, but can be, for example, 5.5 to 8.5, 6.0 to 8.0, and 6 It can be .5-7.5.

(5) Edible Film The edible film according to the present embodiment can be produced by a conventionally known method except that it contains the above-mentioned components. For example, the edible film according to the present embodiment can be produced by dissolving and dispersing the base material in water, mixing colored plants and inorganic substances with other components as necessary, and molding the base material.
In the above molding, the sheet may be molded and then die-cut, and the fluidity is lowered after being poured into the mold in a highly fluid state (for example, a solution / suspension state or a high temperature state). (For example, drying or cooling) may be used for molding.
Further, the surface of the film may have a mirror surface or irregularities.

When the edible film of the present embodiment is molded into a sheet shape, the thickness after molding is preferably 30 μm to 300 μm, more preferably 50 to 300 μm, and particularly preferably 60 to 100 μm. Within such a range, it becomes easier to maintain the shape after die cutting and molding.

According to the edible film according to the above-described embodiment, since it contains a colored plant, an inorganic substance and a base material and a predetermined amount of divalent metal ion is used as the inorganic substance, it has excellent light resistance even under light irradiation conditions. It becomes.

The embodiments described above are described for facilitating the understanding of the present invention, and are not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

Hereinafter, the present invention will be described in more detail by showing production examples, test examples, etc., but the present invention is not limited to the following production examples, test examples, etc.

Example 1 : Production of edible film containing matcha Agar (manufactured by Ina Food Industry Co., Ltd., Kanten Cook) 5.3 parts by mass is heated and dissolved in 90.9 parts by mass of water, and seaweed calcium (manufactured by Taiyo Kagaku Co., Ltd., calcium content 30) (% by mass) 0.3 parts by mass and 3.5 parts by mass of matcha powder were mixed to prepare a preparation solution for an edible film. The obtained preparation was poured onto an aluminum sheet so as to have a thickness of 100 μm when dried, and then dried to produce a matcha-containing edible film (Sample 2).

Further, the blending amount of matcha and seaweed calcium, and the type and blending amount of the base material were changed to produce a matcha-containing edible film (Samples 1, 3 to 21). In Samples 8 and 9, cellulose (manufactured by Asahi Kasei Corporation) was used as the base material instead of agar.

[Test Example 1] Light resistance test The obtained matcha-containing edible film was installed in an artificial meteorological instrument (LH-350SP, manufactured by Nippon Ika Kikai Seisakusho Co., Ltd.) and was used as a light source under the conditions of 5 ° C. and 25% RH. Was irradiated with light having an irradiance of 10,000 lux for 12 hours using a 25 kW fluorescent lamp.
Before and after light irradiation, the color tone of the edible sheet was measured using a spectrophotometer (manufactured by Minolta, CM-2600d), and the color difference was calculated.
The results are shown in Table 1.

As shown in Table 1, the light resistance of the sample containing a predetermined amount of calcium was improved regardless of whether agar or cellulose was used as the base material.

Example 2 : Production of carrot-containing edible film 4.4 parts by mass of agar (manufactured by Ina Food Industry Co., Ltd., Kanten Cook) is heat-dissolved in 58.3 parts by mass of water, and seaweed calcium (manufactured by Taiyo Kagaku Co., Ltd., calcium content 30) 0.3 parts by mass) and 37.0 parts by mass (dry solid content 4.4 parts by mass) of carrot juice (solid content 11.9% by mass) were mixed to prepare a preparation solution for an edible film. The obtained preparation was poured onto an aluminum sheet so as to have a thickness of 100 μm when dried, and then dried to produce a carrot-containing edible film (Sample 23).

Further, the blending amounts of carrot, agar, and seaweed calcium were changed to produce a carrot-containing edible film (Samples 22, 24-28).

The obtained carrot-containing edible film was subjected to a light resistance test in the same manner as in Example 1. However, in the light resistance test, the light irradiation time was changed to 7 days.
The results are shown in Table 2.

As shown in Table 2, the same results as those of the matcha-containing edible film were obtained in the carrot-containing edible film.

Example 3 : Production of glycerin-containing edible film 6.7 parts by mass of cellulose (manufactured by Asahi Kasei Co., Ltd.) was dissolved in 90.8 parts by mass of water, 0.3 parts by mass of seaweed calcium (manufactured by Taiyo Kagaku Co., Ltd.), matcha powder 1 A preparation solution for an edible film was prepared by mixing 7 parts by mass and 0.5 parts by mass of glycerin (manufactured by Kenei Pharmaceutical Co., Ltd.). The obtained preparation was poured onto a plastic film so as to have a thickness of 100 μm when dried, and then dried to produce an edible film (Sample 30).
Further, the blending amount of matcha and seaweed calcium, and the type and blending amount of the base material were changed to produce a matcha-containing edible film (Samples 29, 31 to 36).

The obtained matcha-containing edible film was subjected to a light resistance test in the same manner as in Example 1. Furthermore, the properties of the edible film (hardness, suppleness, cracking, stickiness, etc.) were also evaluated.
The results are shown in Table 3.

[Test Example 2] Punching test The obtained matcha-containing edible film (thickness 100 μm) was punched by pressing a star or crescent-shaped punch (maximum inner diameter 10 mm) perpendicularly to the film surface. .. The shape of the punched edible film was observed and evaluated according to the following criteria. The results are shown in Table 3.
◎: Can be punched accurately and has excellent product quality. ○: Small chips, cracks, burrs, etc. occur at the edges, but it does not affect the product quality. ×: Product quality such as visually recognizable chips and cracks. Does not meet

As shown in Table 3, even in the edible film containing glycerin, the sample containing a predetermined amount of calcium had improved light resistance. In addition, the sample containing a predetermined amount of calcium was excellent in punching suitability and properties.

Example 4 : Production of glycerin-containing edible film Matcha-containing edible film was produced in the same manner as in Sample 32 except that the blending amount of glycerin was changed (Samples 37 to 44).
The obtained matcha-containing edible film was evaluated for light resistance, punching suitability, and properties in the same manner as in Example 3. The results are shown in Table 4.

As shown in Table 4, all the samples in which the blending amount of glycerin was adjusted were excellent in light resistance, and were also excellent in punching process suitability and properties.

Claims (7)

An edible film containing colored plants, minerals and substrates
An edible film containing divalent metal ions and containing 0.75 to 6% by mass of the divalent metal ions with respect to the edible film. The edible film according to claim 1, wherein the edible film contains 10 to 80% by mass of the colored plant. The edible film according to claim 1 or 2, wherein the edible film contains 3.0 to 40% by mass of glycerin. The edible film according to any one of claims 1 to 3, wherein the colored plant contains at least one of carotenoid, chlorophyll and tannin. The edible film according to any one of claims 1 to 4, wherein the divalent metal ion is calcium or barium. A method for improving the light resistance of an edible film containing colored plants, inorganic substances and a base material.
A method for improving the light resistance of an edible film, which comprises adjusting the content of divalent metal ions as an inorganic substance in the edible film to 0.75 to 6.0% by mass. A method for improving the punching processability of an edible film containing colored plants, inorganic substances and a base material.
The content of divalent metal ions as an inorganic substance in the edible film was adjusted to 0.75 to 6.0% by mass.
A method for improving punching processability of an edible film, which comprises further adding glycerin to the edible film and adjusting the content of the glycerin with respect to the edible film to 3.0 to 40% by mass.