JP4937000B2 - Food sheet material - Google Patents

Description

The present invention relates to a food sheet material, and in particular, various food sheet materials that directly or indirectly come into contact with food such as kitchen paper, cooking paper, storage sheets, drop lids, etc. are impregnated with a complex of trehalose and mineral adjustment liquid. By doing so, the composite is transferred to the food that comes into contact with the sheet material for food to give added value.

  Traditionally around the kitchen, draining vegetables, preserving fresh food, removing drip from meat and seafood, draining tempura and fry, removing scallops, boiled juice, pickled juice and soup stock, removing oil stains, Various food sheet materials are widely used as kitchen papers, cooking papers, storage sheets, drop lids, etc. in dropping lids during cooking.

For example, Patent Document 1 discloses that a pulp sheet having a water absorption of 170 ml / m ² or more is used as a freshness-holding sheet for maintaining the freshness of fresh foods such as meat and seafood for a long time. A freshness-keeping sheet that can absorb a large amount of drip to be added and that can add antibacterial action and antioxidant action to fresh food materials by adding catechin to the pulp sheet is disclosed. In Patent Document 2, as a food sheet suitable for storing fresh food in a household refrigerator or the like, sterilized water having at least one property of acidic or positive oxidation-reduction potential is provided on a liquid-absorbent sheet body. A food sheet impregnated with is disclosed.

  Trehalose can act as a barrier to protect from damage caused by drying and freezing, when water is lost from tissues and cells of vegetables and meats, as a substitute for water in tissues and cells. Attention has been focused on the effect of maintaining freshness. Patent Document 3 discloses a freshness-preserving agent containing an organic acid and / or polyphenol together with α, α-trehalose as a freshness-preserving agent for suppressing and retaining the freshness of fresh fish and shellfish.

Furthermore, the cleanliness and abundant mineral components of deep ocean water have recently attracted the attention of customers. Deep seawater demineralized water, raw water, concentrated water, bittern, etc. are mainly in the food field. It is used in many ways. This deep ocean water is practically taken off the coast of Cape Muroto and elsewhere, and it is the seawater in an environment where there is no wind wave or normal convection and mixing caused by surface temperature changes. It is not affected by marine pollution caused by various oils, chemical substances, agricultural chemicals and other harmful substances used, and the water temperature is as low as 13 ° C or less on average per year. Contains natural elements. Moreover, it has a feature that it has very little dissolved organic matter in seawater and is extremely clean from a microbial point of view. This deep ocean water has few marine pathogenic microorganisms and bacteria causing food poisoning, and the total viable count has been reported to be 1 / 10th to 1 / 100th of surface water. Has been.
JP 2002-345397 A JP 2004-357644 A JP 2003-225047 A

  Patent Document 1 relates to a freshness-holding sheet intended for improved absorbability and antibacterial action and antioxidant action by catechin, and Patent Document 2 relates to a freshness-holding sheet intended for bactericidal action by sterilizing water. Both are intended to keep the stored vegetables in their current state for a long time, and do not add value to the vegetables themselves. Further, Patent Document 3 is a solid or liquid freshness-keeping agent, and it is necessary to use it as ice or an aqueous solution when used, and there are restrictions on the method of use, and it is generally used in general homes and the like. It was inconvenient.

  In addition, modern people are worried about the shortage of minerals, and in particular, they need to take in trace minerals, and the market is rich in a variety of mineral supplements. However, these supplementary foods need to be ingested as foods separate from the staple food.

  The above-mentioned conventional freshness-keeping sheet etc. touches food, but the idea and proposal to give added value by using this as a medium to transfer some useful ingredient having nutritional value higher than the current value to food There is nothing.

Therefore, in view of the above-mentioned conventional problems, the present invention pays attention to cleanliness and abundant mineral components possessed by deep ocean water, and enables mass production in the near future with this ocean deep water, and has a freshness maintaining effect and other usefulness. Trehalose and minerals can be used for food as a food sheet by combining it with trehalose, using the opportunity of direct or indirect contact with food during cooking, preparation, storage, etc. An object of the present invention is to provide a sheet material for food that impregnates a composite of components to give the added value by transferring the composite to food.

In order to achieve the above object, the present invention is a food sheet material comprising kitchen paper, cooking paper, a preservation sheet or a drop lid that is in direct or indirect contact with food, using deep ocean water as a raw material, calcium and While concentrating magnesium without heating while maintaining a ratio of 1: 2.5 to 3.5, a liquid complex obtained by mixing trehalose with a mineral adjustment liquid in which the sodium content is suppressed to 5% or less of the hardness, A food sheet comprising 10% by weight to 30% by weight added to the basis weight of a base sheet composed of a nonwoven fabric, and the base sheet impregnated with a complex of mineral components using trehalose and deep seawater as raw materials. Providing materials.

Moreover, it is a food sheet material comprising kitchen paper, cooking paper, storage sheet or drop lid that directly or indirectly comes into contact with food, using deep sea water as a raw material, and calcium and magnesium in a ratio of 1: 2.5-3. A liquid composite prepared by mixing trehalose with a mineral adjustment liquid in which the sodium content is suppressed to 5% or less of the hardness while maintaining the ratio of .5 is maintained on the base sheet made of nonwoven fabric. Add 10 wt% to 30 wt% with respect to the basis weight, heat from the upper surface of the base sheet, impregnate and fix the complex of mineral components using trehalose and deep ocean water as raw materials in the base sheet, A food sheet material in which a base material sheet is impregnated with a complex of mineral components using trehalose and deep ocean water as raw materials is provided. And when it contacts food, the composite body impregnated in the base material sheet can be transferred to food.

According to the sheet material for food according to the present invention, as the sheet material for food comprising kitchen paper, cooking paper, storage sheet or drop lid that is in direct or indirect contact with food, various kinds of food sheet material in contact with the food sheet material are provided. The food is made from deep ocean water and is concentrated without heating while maintaining a ratio of calcium and magnesium in the ratio of 1: 2.5 to 3.5, and the sodium content is suppressed to 5% or less of the hardness. Trehalose and deep ocean water impregnated in a base sheet by adding 10 to 30% by weight of a liquid composite in which trehalose is mixed with the adjustment liquid with respect to the basis weight of the base sheet made of nonwoven fabric. The complex of mineral components made from the raw material migrates, and the freshness of the food is preserved by trehalose, the unpleasant odor is suppressed, and the deterioration of the lipid is suppressed and eaten. The quality of the can be maintained. In addition, mineral components that are essential to the human body, especially calcium, magnesium, and potassium, can be transferred to foods, and essential mineral components can be easily and efficiently consumed from foods, giving added value to foods. Can do. Moreover, the absorption efficiency of a mineral component increases by the synergistic effect with a trehalose. And it is only used for the original use as a sheet material for food, and does not require a special usage form and is easy to use.

  Hereinafter, the best embodiment of the food sheet material according to the present invention will be described. The food sheet according to the present invention is a sheet-like product that is used in direct or indirect contact with various solid and liquid foods, specifically draining vegetables and the like, preservation of fresh food, meat It is used for removing drip from fish and seafood, draining tempura and fries, removing acupuncture, boiled juice, pickled juice and soup stock, removing oil stains, and dropping lids during cooking. These are used as kitchen paper, cooking paper, storage sheets, drop lids, etc., but are not limited thereto. In addition to foods that are eaten directly, foods used for cooking and processing of seasonings and other foods are also included. Sheets are not limited to flat sheets, but also include bags and other three-dimensional or roll-processed sheets that can be directly or indirectly contacted with food in a certain area when used. If there is, the shape does not matter.

The base material sheet of the food sheet material is not particularly limited as long as it can be impregnated with a complex of mineral components using trehalose and deep seawater as raw materials. From the standpoint of use, it is preferable that fibers having hydrophilicity and lipophilicity are blended in the raw fiber. Specifically, it can be used in units of hydrophilic fibers such as pulp, rayon, and cotton, and composite fibers of pulp and fibers that absorb heat and oil such as polyester (PET) and polypropylene (PP). Can be used. In particular, non-woven fabrics made from polypropylene (PP) fibers have the property of adsorbing oil more than about 10 times their own weight. For example, they are used as oil adsorbents in the event of tanker accidents. Is also suitable as an accumulating sheet and a sheet for adsorbing excess fat. Pulp is also excellent in oil adsorption and water absorption and is suitable as a raw material for the base sheet. Using these fibers as the main raw material, a non-woven fabric or paper having a predetermined thickness and density is used. In this embodiment, a 100% pulp nonwoven fabric was used. In addition, the base sheet which mixed other natural fiber and synthetic fiber with the pulp may be sufficient.

  Trehalose is a white crystalline or crystalline powder and odorless natural carbohydrate substance. Widely distributed in nature and deeply related to life since ancient times, it is also contained in seawater as well as many animals and plants, and is also an energy source for living organisms. Have the function of maintaining the body and cells. Trehalose, which can be mass-produced from starch in 1993, has been industrially mass-produced in high purity since 1995 and is now widely used as a raw material for food and cosmetics.

  Trehalose is non-reducing, does not cause browning (Maillard reaction) even when heated in the presence of amino acids and proteins (non-coloring), and is very stable against heat and acid (heat and acid resistant) Property), up to 95% relative humidity, it does not absorb and release moisture (non-hygroscopic) at all, maintaining the freshness of fresh food, preventing starch aging, preventing protein denaturation, preventing lipid decay, and fish odor It is effective in suppressing production and suppressing the generation of rice odor from white rice.

  The other mineral preparation liquid made from deep ocean water is made from deep ocean water and concentrated without heating while keeping calcium and magnesium in a ratio of 1: 2.5 to 3.5. It is an adjustment solution that reduces sulfate ions by suppressing the sodium content, which becomes an obstructive factor when powdering the adjustment solution and is concerned about excessive intake to about 5% or less of the hardness. The main composition is shown in Table 1.

  In this embodiment, the deep sea water taken from the deep sea below 320 m below the sea surface off Cape Muroto was used as the raw material of the mineral adjustment liquid made from the deep sea water. The number of viable bacteria in the deep sea water off Muroto Cape is one digit or more less than that in the surface water, and it contains almost no pathogenic organisms. There is no concern about it, and its safety when used in food is extremely high. Muroto Deep Sea Water features low temperature stability, rich in mineral nutrients, excellent cleanliness, mineral characteristics, aging, and low temperature stability, and is a nutrient source for phytoplankton, a source of marine life It is rich in “nitrogen”, “phosphorus”, and “silicic acid”, and the deep ocean water plays a role in the storage of these nutrients. From the viewpoint of cleanliness, cleanness has physical cleanliness, biological cleanliness, and chemical cleanliness, and Muroto Deep Sea Water has excellent cleanliness. The temperature of this deep ocean water is almost constant throughout the season, the surface water temperature around Muroto Cape is about 16 ° C to 28 ° C, the depth of the deep water intake is about 9 ° C, about 10 ° C on land. It becomes about -12 degreeC.

  Regarding the mineral characteristics of deep sea water, deep sea water contains more than 70 kinds of elements, and also contains many major elements that humans must ingest, such as magnesium, calcium, and potassium. Magnesium is an element that is indispensable for maintaining the function of nerves and the like, and the lack of magnesium causes autonomic nerve malfunction and heart disease. Magnesium and calcium are closely related, and if one is deficient, the balance is lost, and potassium is effective for excretion of sodium. Iron and zinc are also closely related to health.

  Minerals are important components that make up muscles, blood, nerves, and organs in addition to bones and teeth. They are dissolved in body fluids inside and outside the cell, and the body's metabolism such as digestion, decomposition, and absorption of food. It is essential to do smoothly. Since minerals cannot be made in the body, there is only a means of taking it from food. Table 2 shows the contents of magnesium, calcium, potassium, and sodium in deep ocean water.

  As is clear when Table 1 and Table 2 are compared, the mineral adjustment liquid is contained in the ocean water from 400 mg / L to 3445 mg / L, and the magnesium is contained from 1200 mg / L to 10663 mg / L, respectively. As the amount increases, the ratio of calcium and magnesium is maintained in the range of 1: 2.5 to 3.5 as in the case of deep ocean water, and sodium is 508 mg / L from 10000 mg / L to approximately 5% or less of hardness. It is reduced to.

  Trehalose is mixed with the mineral adjustment liquid made from this deep ocean water. In the present embodiment, the mixture is composed of 12% by weight of trehalose and 88% by weight of the mineral adjustment liquid, so that it is easy to handle. In addition, 10 to 90 weight% is suitable for the mixing ratio of a trehalose with respect to a mineral adjustment liquid. As the mixing ratio of powdered trehalose increases, the concentration increases and becomes powdery. When the mixing ratio was 88% by weight of trehalose and 12% by weight of the mineral adjustment solution, the mixture became powdery. The mineral adjustment liquid made from deep ocean water mixed with trehalose used in the present embodiment was commercially available from HC Plastic Life Science Co., Ltd. under the trade name "Mineral Treha". This mineral treha (trade name) is liquid or powdery, and in this embodiment, a liquid having an appropriate concentration is used. However, in the case of powder or high concentration, the concentration is adjusted by dispersing in water. Table 3 shows the mineral components of the mineral adjustment liquid made from deep ocean water mixed with trehalose used in the present embodiment.

  As a result of requesting a mineral adjustment solution made from deep ocean water mixed with trehalose used in the present invention as a raw material and testing it, in the Ames test (mutagenicity test), the mineral adjustment solution mixed with trehalose In the reverse mutation test using Salmonella and Escherichia coli, it is judged that there is no induction of sudden mutation of the gene, and in the chromosomal aberration test, the mineral preparation mixed with trehalose does not induce mutagenicity during the chromosomal aberration test, In the acute oral toxicity test, there were no deaths or clinical signs due to administration of a mineral preparation mixed with trehalose, and it was judged that there was no toxicity.

The mineral adjustment liquid made from the deep sea water mixed with the trehalose described above is added to the base sheet. Fig. 1 shows mineral components made from trehalose and deep seawater as raw materials by adding mineral preparation liquid 2 (mineral treha / trade name) made from deep seawater mixed with trehalose to a non-woven fabric for food sheets as a base sheet. It is the schematic which shows the process of impregnating the composite_body | complex of. As shown to the figure (A), the mineral adjustment liquid 2 which uses the deep sea water which mixed the trehalose to the base material sheet 1 comprised with the nonwoven fabric which consists of 100% of pulp as a raw material is added, and the figure (B) Then, the adjustment liquid layer 3 is formed as shown in FIG. 3B, and then heating 4 is performed from the upper surface of the adjustment liquid layer 3 as shown in FIG. As shown in FIG. 4D, the mineral adjustment liquid 2 is impregnated and fixed, and the moisture 5 is evaporated. As shown in FIG. water base sheet 1 complexes TM is immersed contains minerals that the raw material is completed as a food sheet material S.

  The food sheet material obtained by the present invention is used for draining vegetables and the like, preserving fresh foods, removing drip from meat and seafood, draining tempura and fried foods, taking a pickle, boiled soup Widely used by processing into various shapes such as food sheet material with a predetermined flat shape such as filtration of soup stock and soup stock, removal of oil stains, dropping lids during cooking, etc., or food sheet material in rolls, bags, etc. Can be provided.

The complex of mineral components using trehalose and deep ocean water as a raw material as described above is formed by combining the hydroxyl groups at the 2nd and 4th positions in the trehalose molecule with calcium and magnesium as shown in FIG. In addition, the shape of cellulose molecules in the base sheet is a sheet shape due to hydrogen bonding, whereas the shape of trehalose molecules made of starch is a helical shape due to hydrogen bonding. Both structures are very stable because they are linked by a hydrogen bond between hydroxyl groups (OH groups), but due to the difference in molecular shape, cellulose does not dissolve in hot or cold water. Due to its nature, trehalose is easily soluble in water. Therefore, the composite is supported and impregnated between the fibers constituting the base sheet and in a fibrous form without being bonded to the base sheet. When the food sheet material comes into contact with food according to its application, trehalose exhibits easy solubility with respect to moisture, so that the complex easily shifts to food due to the moisture or oil content of the food. Moreover, the absorption rate of a mineral component improves by setting it as the composite_body | complex of a trehalose and a mineral component.

  Trehalose and mineral complex derived from deep ocean water, trehalose works to maintain the freshness of fresh food, prevent starch aging, prevent protein denaturation, prevent lipid decay, suppress fish odor production, It has the function of suppressing the generation of rice odor and improves the absorption efficiency of main minerals. In addition, since it forms a complex with trehalose, it is resistant to moisture and stable. That is, it has the individual advantages of trehalose and mineral components, and these complement each other and provide further effects. Furthermore, the mineral component has a sodium content of about 5% or less of the hardness, which causes excessive intake, and a mineral balance close to seawater (ratio of calcium: magnesium is about 1: 2.5 to 3.5). It is possible to efficiently ingest only essential mineral components that tend to be deficient.

  As an effect of trehalose on the absorption of mineral components, experimental reports using rats have been conducted. This is a comparison between when normal rats and magnesium-deficient rats each receive magnesium alone and when magnesium and trehalose are simultaneously consumed. As shown in Table 4, in normal rats, the absorption rate of magnesium alone is 36.0%, whereas when magnesium and trehalose are ingested at the same time, the absorption rate is 72.8%, which is more than double the absorption rate. In the case of the magnesium-deficient rat, it is greatly improved from 77.5% to 91.9%. Therefore, also in the present invention, the absorption efficiency is improved because the mineral component forms a complex with trehalose.

FIG. 3 is a schematic view of a first embodiment of the present invention in which a mineral conditioning liquid 2 made of deep ocean water obtained by mixing trehalose with a nonwoven fabric made of 100% pulp is impregnated . After the base sheet 1, 1 is formed into a desired cardboard shape using the rotary rollers 6, 6, the mineral adjustment liquid 2 made of deep ocean water mixed with trehalose from the nozzle 7 in the next step is sprinkled, Next, the substrate sheet 1 is subjected to predetermined embossing through the embossing rollers 8 and 8. Then, in the next step, the dryer 9 heats the substrate sheet 1 from the upper surface for a predetermined time to evaporate the moisture, and the minerals using trehalose and deep ocean water as raw materials between and on one side of the substrate sheet 1 After the component composite is impregnated and fixed, and then the thickness of the base sheet 1 is adjusted to be constant by passing between the pressing rollers 10 and 10, the food sheet material S is completed by winding it around the winding roller 11. To do.

  FIG. 4 is a schematic view of the second embodiment of the present invention, in which the same components as those of the first embodiment are denoted by the same reference numerals. As described above, first, a plurality of base material sheets 1 and 1 made of 100% pulp non-woven fabric are formed into a desired cardboard shape using the rotary rollers 6 and 6, and then the embossing roller 8 is used in the next step. , 8 through which the base sheet 1 is subjected to predetermined embossing, and then the mineral adjustment using the deep ocean water mixed with trehalose previously filled in the sealed container 12 as the transfer roller 13 rotates. The liquid 2 is transferred to the back side of the base sheet 1. In the next step, the base sheet 1 is heated by the dryer 9 to evaporate the moisture, and a mineral component complex using trehalose and deep ocean water as raw materials is formed between the fibers of the base sheet 1 and on one side. After impregnating and fixing, the thickness of the base sheet 1 is adjusted to be constant by passing between the pressing rollers 10 and 10, and then wound around the winding roller 11 to complete the food sheet material S.

FIG. 5 is a schematic diagram of the third embodiment of the present invention, in which the same components as those in the first and second embodiments are denoted by the same reference numerals. That is, as in the above example, a plurality of substrate sheets 1 and 1 made of 100% pulp non-woven are formed into a desired cardboard shape using rotary type rollers 6 and 6 and then embossed in the next step. In the mineral adjustment liquid 2 using raw deep sea water mixed with trehalose preliminarily filled in a container 14 whose upper portion is opened, after a predetermined embossing process is performed on the base sheet 1 through the rollers 8 and 8. By moving along the guide roller 15, the mineral adjustment liquid 2 made of deep ocean water mixed with trehalose is attached to both the front and back surfaces of the base sheet 1, and excess water is passed between the squeezing rollers 16 and 16. After the removal, the base sheet 1 is heated by the dryer 9 in the next step to evaporate water, and trehalose and deep ocean are formed between the fibers of the base sheet 1 and on both sides After impregnating and fixing a composite of mineral components made from the raw material and then passing between the pressing rollers 10 and 10, the thickness of the base sheet 1 is adjusted to be constant, and then wound around the winding roller 11 for food use. The sheet material S is completed. The nonwoven fabric is impregnated with a complex of mineral components using trehalose and deep seawater as raw materials not only by the first to third embodiments described above but also by other known means such as flexographic printing. It is possible.

  In each of the above-described embodiments, 5 wt% to 100 wt% of mineral adjustment liquid 2 using deep sea water mixed with trehalose as a raw material is added to the basis weight of the base sheet 1. If it is less than 5% by weight or more than 100% by weight, it is difficult to add to the base sheet, and when it is used as a food sheet, the effect cannot be expected if it is less than 5% by weight. It is because it is thought that the flavor of food itself will be broken if it exceeds.

  The obtained sheet material for food can be used for various purposes as a sheet-like material that directly or indirectly comes into contact with solid or liquid foods as kitchen paper, cooking paper, storage sheets, drop lids, etc. By contacting various foods as a sheet material for use, a complex of mineral components using trehalose and deep sea water as raw materials is transferred to various foods. In addition, the freshness of the foods can be maintained and the unpleasant odor can be suppressed by the transferred trehalose, and the quality of the foods can be maintained by suppressing the deterioration of the lipids. In addition, mineral components that are essential to the human body, especially calcium, magnesium, and potassium, can be transferred to foods, and essential mineral components can be easily and efficiently consumed from foods, giving added value to foods. Can do.

  For example, as a food sheet for draining vegetables, preserving fresh food, removing drip from meat and seafood, draining tempura and fries, removing scallops, boiled juice, pickled juice and soup stock, and removing oil stains When used, trehalose, which has been transferred from food sheets to various foods, has the characteristics of catching moisture and drip firmly and not easily releasing the caught moisture, thus preventing movement of color and taste, and freedom of water The freshness of various foods can be maintained by depriving them. At the same time, it is possible to add mineral components essential to the human body of calcium, magnesium, and potassium to various foods. Alternatively, when used as a drop lid when cooking, the boiled juice hits the drop lid and convects up and down, and the minerals and trehalose are dissolved in the food, thereby extracting the umami and making the food more delicious.

  The base material is a mineral adjustment liquid made from deep sea water, which is made of 100% pulp nonwoven fabric and mixed with trehalose mixed with 12% by weight of trehalose and 88% by weight of mineral adjustment liquid. After adding 10% by weight to the basis weight of the sheet to remove moisture, the sheet material for food was cut into a size of 240 mm × 270 mm. This food sheet material is used as a preservation sheet for maintaining freshness, wrapping thawed fish pieces (tuna; approx. 70 g) and lettuce (1/6 ball) for sashimi, and placing them in a polyethylene bag with a chuck. They were lined up and stored in an incubator set at 5 ± 0.5 ° C. Immediately before storage (0 hour), 24 hours after storage (1 day later) and 72 hours (3 days later), the sample was taken out of the incubator and visually observed. In addition, Table 5 shows the physical property standards of the base sheet used in Example 1.

  As a conventional example, the same experiment as in Example 1 was performed using a commercially available cooking paper (240 mm × 270 mm). Further, as a comparative example, after removing water by adding 10% by weight of an aqueous solution of 12% by weight of trehalose to a base sheet in a dry paper state made of 100% pulp non-woven fabric, 240 mm × The same experiment as in Example 1 was performed using a food sheet material cut to a size of 270 mm.

  It is well known that fatty acids (oils and fats) contained in foods (fishery products and grains) decompose during cooking and long-term storage, producing volatile aldehydes that cause unpleasant odors. In addition, since the components of the food are decomposed by microorganisms and may be spoiled or deteriorated, the freshness of the food can be determined by changing the appearance.

  In the case of thawed fish pieces (tuna; about 70 g) for sashimi, after 24 hours, 72 hours have passed, there is no significant change (rotation) in the color of the food in both Example 1, Conventional Example and Comparative Example, Color gloss was also good. However, in terms of odor, the conventional example produced the most rotting odor, and the rotting odor was not felt so much in Example 1 and the comparative example. Moreover, the fish meat surface after 72 hours is sticky, and it is considered that bacterial erosion is progressing. Usually, the freshness of fish meat is assumed to be that day or until the next day, and after two days, the freshness drops and the color is brown, and the luster usually falls. Therefore, Example 1 is considered to play a role as a preservation sheet for maintaining freshness.

  In the case of lettuce (1/6 ball), the color started to change from the outermost leaf. This is thought to be due to the loss of moisture due to oxidation by oxygen in the air when exposed to air. Compared to the color of the outer leaves of the conventional example 1 that fell and became loose, the color of the outer leaves of the example 1 was slightly crisp but slightly crisp. On the other hand, a large discoloration was partially observed in the comparative example. Therefore, Example 1 is considered to play a role as a freshness maintaining sheet.

  In order to use the food sheet material of Example 1 as a dropping lid for cooking, it was processed into a circle having a diameter of 20 cm, and immersed in 1 L of purified water heated to about 90 ° C. for 1 hour. Thereafter, the drop lid was taken out from the purified water, and the concentrations of magnesium and calcium in the produced water which was allowed to cool to room temperature were measured. The analysis method was ICP emission analysis. Further, as Conventional Example 2, the base sheet of Example 1 was processed into a circle having a diameter of 20 cm, and the same experiment as in Example 2 was performed.

  In this experiment, by using the sheet material for food according to the present invention as a drop lid, the presence or absence of migration due to the elution of mineral components in food is confirmed, and the results are shown in Table 6. As shown in Table 6, neither magnesium nor calcium was detected in Conventional Example 2 and purified water, but in Example 2, 4.9 mg / L magnesium and 2.1 mg / L calcium were detected, It was confirmed that the mineral component was transferred into the food by using the food sheet material for the dropping lid for cooking.

  Next, the drop lid of Example 2 was used for actual cooking at home, and whether or not there was a change in the taste and flavor of the food was examined in a questionnaire format. The number of samples was 10, and dishes using drop lids were stewed dishes such as pumpkin stewed, simmered salmon, stewed beef streaks.

  In response to the question “Is there a change in flavor?” As question 1, as shown in FIG. 6, “no change” was 20% and “changed” was 80%. When a specific evaluation was asked to the person who answered “There was a change” as Question 2, as shown in FIG. 7, “feeling that brought out the taste of food” was 70%, and “the raw odor was gone” 10%, 10% for "Koku out" and 10% for "Others". Other contents include “finished deep taste” and “delicious”.

  From the survey results of FIGS. 6 and 7, the majority of the users replied that “the taste of food was pulled out” by using the drop lid to which the present invention was applied. It can be seen that the mineral component has been transferred and has added value not found in the food itself.

  Next, in the drop lid of Example 2, the blending ratio of trehalose and mineral adjustment liquid with respect to the basis weight of the base sheet is less than 5% by weight, 10% by weight, 30% by weight, 60% by weight, 90% by weight or more, respectively. In the same manner as in Example 2, the experiment used for actual cooking was performed, and a questionary survey was conducted to determine which drop lid was most likely to extract the taste of food.

  As shown in the investigation results of FIG. 8, 10% by weight was 49%, 30% by weight was 38%, and 60% by weight was 13%. In addition, both less than 5 weight% and 90 weight% or more were 0%. From this result, it is considered that a preferable blending ratio is about 10 to 60% by weight.

According to the present invention, as a food sheet material composed of kitchen paper, cooking paper, a preservation sheet or a drop lid that is in direct or indirect contact with food, various foods in contact with the food sheet material include deep sea layers. Using water as a raw material, concentrate calcium and magnesium without heating while maintaining a ratio of 1: 2.5 to 3.5, and mix trehalose with a mineral adjustment solution that keeps the sodium content below 5% of the hardness. Mineral component using trehalose impregnated in base material sheet and deep sea water as raw materials, with added liquid composite 10% to 30% by weight based on basis weight of base material sheet made of nonwoven fabric Complex, that is, trehalose having a function of maintaining freshness, and transferring mineral components essential to the human body, especially calcium, magnesium and potassium As a result, trehalose keeps the freshness of the food and suppresses unpleasant odors, suppresses the deterioration of lipids and maintains the quality of the food, and can easily ingest essential minerals from food efficiently. Can add value to food. And it is only used for the original use as a sheet material for food, and does not require a special usage form and is easy to use. Moreover, the absorption rate of a mineral component improves by setting it as the composite_body | complex of a trehalose and a mineral component.

Schematic which shows the process of impregnating the base material sheet | seat with the composite of the mineral component which uses trehalose and deep sea water as a raw material. Structure diagram of a complex of mineral components using trehalose and deep ocean water as raw materials. 1 is a schematic diagram of a first embodiment of the present invention. Schematic of 2nd Embodiment of this invention. Schematic of 3rd Embodiment of this invention. The graph which shows the result of market research about the drop lid to which the present invention is applied. The graph which shows the result of market research about the drop lid to which the present invention is applied. The graph which shows the result of market research about the drop lid to which the present invention is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base material sheet 2 ... Mineral adjustment liquid made from deep ocean water mixed with trehalose 3 ... Adjustment liquid layer TM ... Complex of mineral components made from trehalose and deep ocean water 6 ... Rotary type roller 7 ... Nozzle DESCRIPTION OF SYMBOLS 8 ... Embossing roller 9 ... Dryer 10 ... Pressing roller 11 ... Winding roller 12 ... Sealed container 13 ... Transfer roller 15 ... Guide roller 16 ... Diaphragm roller

Claims (3)

A food sheet material consisting of kitchen paper, cooking paper, storage sheet or drop lid that comes into direct or indirect contact with food,
Trehalose is a mineral preparation that uses deep sea water as a raw material and concentrates calcium and magnesium in a ratio of 1: 2.5 to 3.5 without heating, while keeping the sodium content below 5% of the hardness. 10% by weight to 30% by weight of the base material sheet composed of the nonwoven fabric is added to the liquid composite, and the base material sheet is composed of trehalose and deep ocean water as raw materials. A sheet material for food, which is impregnated with a composite. A food sheet material consisting of kitchen paper, cooking paper, storage sheet or drop lid that comes into direct or indirect contact with food,
Trehalose is a mineral preparation that uses deep sea water as a raw material and concentrates calcium and magnesium in a ratio of 1: 2.5 to 3.5 without heating, while keeping the sodium content below 5% of the hardness. 10% by weight to 30% by weight of the liquid composite mixed with the base material sheet composed of the nonwoven fabric, and heated from the upper surface of the base material sheet, trehalose and the deep ocean water to complex impregnation fixing minerals as a raw material, characterized in that the moisture has been vaporized trehalose and deep-sea water to the base sheet by impregnated complex minerals as a raw material Food sheet material. The sheet material for food according to claim 1 or 2, wherein the composite impregnated in the base sheet can be transferred to food when in contact with food.

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