Packaged food and drink

Abstract

To provide a packaged food and drink capable of maintaining the quality of contents such as the amount of vitamins, the color, flavor and texture of a product even when stored for a long period of time in spite of a composition containing a protein and vitamins or an emulsifier and liable to deteriorate, and capable of reducing a transportation cost.SOLUTION: A packaged food or drink comprising a packaging container having a space for containing a content, and a powder for food or drink filled in the packaging container, wherein the packaging container is formed of a flexible material having gas barrier properties, and the packaging container has a front face part and a back face part facing each other, and further has a bottom face part or a pair of side face parts connecting the front face part and the back face part, or has a shape in which the front face part and the back face part are joined to each other at their peripheral edges, the powder for eating and drinking contains a protein and at least one kind selected from vitamins and emulsifiers and has ≤ 40% gas content expressed by v / V when the volume of the gas existing in a housing space is defined as v and the volume of the powder for eating and drinking is defined as V.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a packaged food or drink. [Background technology]

[0002] Protein-containing powders are widely distributed in the form of powdered drinks that are dissolved in water to produce a drink, etc. Protein powder-containing powdered drinks and other edible powders may contain emulsifiers to improve their solubility in water, or may contain vitamins to supplement nutrients that tend to be deficient or to maintain or improve protein metabolism in the body (e.g., Patent Document 1).

[0003] Furthermore, conventionally, powdered foods and beverages have been sealed in packaging containers for transport. For example, Patent Document 2 describes a product for the bread-making industry that includes a container and a powdered composition, wherein the powdered composition contains an improver composition and active yeast, the head space of the container is at least 5% of the total volume of the container after sealing, and the product is characterized by being made of an inert atmosphere. The document also describes that this configuration ensures stable rise during bread making even after long-term storage. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2021 / 054452 [Patent Document 2] International Publication No. 2006 / 000065 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when a powdered food or drink containing protein and vitamins or an emulsifier is stored in a container, the vitamins may degrade during storage, reducing the active ingredients, or the emulsifier may deteriorate, adversely affecting the quality of the contents, such as their flavor. Furthermore, protein itself is a material that is easily degraded, which can cause the color, flavor, and texture of the food to deteriorate, making long-term storage difficult. Meanwhile, the container described in Patent Document 1 requires high transportation costs and nitrogen substitution costs, and no consideration has been given to maintaining the quality of the contents, such as the color, flavor, and texture of the product, while reducing these costs. Therefore, the object of the present invention is to provide a containerized food and beverage product that has a composition that is prone to deterioration, namely, a protein and a vitamin or an emulsifier, but that can maintain the quality of the contents, such as the amount of vitamins, color, flavor, and texture of the product, even after long-term storage, and that can reduce transportation costs and production costs. [Means for solving the problem]

[0006] The present invention provides the following configurations. <1> A container-packaged food or beverage having a packaging container having a storage space for contents and a powder for food or beverage filled in the packaging container, The packaging container is made of a flexible material having gas barrier properties, The packaging container has a front portion and a back portion facing each other, and further has a bottom portion or a pair of side portions connecting the front portion and the back portion, or has a shape in which the front portion and the back portion are joined to each other at their peripheral portions, The powder for food or drink contains a protein and at least one selected from a vitamin and an emulsifier, A containerized food or beverage in which the gas content expressed as v / V is 40% or less, where v is the volume of the gas present in the storage space and V is the volume of the powder for consumption.

[0007] <2> The powder for consumption has an average particle size of 10 to 800 μm. <1> A food or drink in a container as described above.

[0008] <3> The powder for consumption has a bulk density of 0.01 to 1.0 g / ml. <1> or <2> A food or drink in a container as described above.

[0009] <4> The powder for consumption has a moisture content of 1 to 10% by mass. <1> or <2> A food or drink in a container as described above.

[0010] <5> The powder for consumption is a powdered drink; <1> or <2> A food or drink in a container as described above.

[0011] <6> The vitamin is at least one selected from vitamin C, vitamin B2, and vitamin B6, and the emulsifier is lecithin. <1> or <2> A food or drink in a container as described above. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a containerized food or beverage that has a composition that is prone to deterioration, including vitamins or emulsifiers and proteins, while reducing transportation and production costs and maintaining the quality of the contents, such as the amount of active vitamins, and the color, flavor, and texture of the product, over a long period of time. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a schematic perspective view of an example of a container according to the present invention as seen from the front side, where (a) shows the state before degassing and (b) shows the state after degassing. [Figure 2] FIG. 2 is a schematic perspective view of the container shown in FIG. 1 as seen from the side, where (a) shows the state before degassing and (b) shows the state after degassing. [Figure 3] 3(a) to 3(c) are schematic diagrams showing examples of the positions of check valves in containers. [Figure 4] FIG. 4 is an enlarged view of the check valve of the container in FIG. 1(a) and its vicinity (the area surrounded by the chain line frame in FIG. 1(a)). [Figure 5] FIG. 5 is a schematic diagram illustrating the degassing step in producing the container of the present invention. [Figure 6]FIG. 6 is a schematic perspective view showing the state in which the containers shown in FIG. 1(b) and FIG. 2(b) after degassing are packed in a box. [Figure 7] FIG. 7 is a schematic front view of a food / drink container showing yet another embodiment of the present invention, where (a) shows the state before degassing and (b) shows the state after degassing. [Figure 8] FIG. 8 is a schematic side view of the container shown in FIG. 7 placed in a mailing box, where (a) shows the state before degassing and (b) shows the state after degassing. DETAILED DESCRIPTION OF THE INVENTION

[0014] The present invention will be described below based on its preferred embodiments. A food and drink container 10 according to one embodiment of the present invention is shown in FIGS. Figures 1 and 2 are schematic perspective views of an example of a container according to the present invention, as seen from the front and side, respectively. (a) in Figures 1 and 2 shows the state before gas is reduced, and (b) in each figure shows the state after gas is reduced. The container containing food or beverage according to the present disclosure corresponds to the state after gas is reduced in Figures 1(b) and 2(b).

[0015] As shown in Fig. 1, the food / drink container 10 of this embodiment has a packaging container 12 (hereinafter simply referred to as "container 12") having a storage space for the contents. The food / drink container 10 has edible powder filled in the packaging container 12.

[0016] In the present invention, a protein powder is used as the powder for consumption. Protein powders are susceptible to deterioration due to heat, light, moisture, etc., and caking due to excessive compression is a problem. For this reason, the gas content of the present invention, as described below, is particularly effective in powders for consumption containing protein powder. Examples of protein powders include collagen powder, milk-derived protein powder, legume-derived protein powder, seed-derived protein powder, and seafood-derived protein powder. Examples of milk-derived protein powders include whole milk powder, skim milk powder, buttermilk powder, whey protein (WPC: Whey Protein Concentrate, WPI: Whey Protein Isorate), milk protein (MPC: Milk Protein Concentrate, MPI: Milk Protein Isorate), and casein. Examples of legume-derived protein powders include soybean-derived protein powder and pea-derived protein powder. Examples of soybean-derived protein powders include powdered soy protein and soy peptide. Examples of powdered soy protein include isolated soy protein and concentrated soy protein. Concentrated soy protein is a powder obtained by concentrating and drying protein and soybean pulp from defatted soybeans. Isolated soy protein is a powder obtained by separating protein from defatted soybeans and drying it. Isolated soy protein is obtained, for example, by defatting soybeans, extracting them with water, and then adding acid to the resulting soy milk to produce whey and curd. The curd is separated by centrifugation or filtering, and then neutralized, dried, and pulverized. When these proteins are granulated, the granulation process can be carried out using various granulation methods described below.

[0017] In the present invention, the use of milk-derived protein powder or legume-derived protein powder as the protein source is particularly preferred because of the high quality maintenance effect achieved by specifying the gas content. As the milk-derived protein, cow's milk-derived protein is preferred because of its excellent economic significance for the present invention and its relatively low milk-specific odor, and whey protein is particularly preferred because of its water-solubility and rapid digestion and absorption. As the legume-derived protein powder, soybean-derived protein powder is preferred because of its excellent economic significance for the present invention and its resistance to odor due to oxidation, and soy protein isolate or soy protein concentrate are preferred because of their excellent solubility.

[0018] The powder for food or drink of the present invention contains at least one selected from the group consisting of vitamins and emulsifiers. Vitamins are classified into water-soluble vitamins and fat-soluble vitamins. Fat-soluble vitamins include vitamin A, vitamin D, vitamin E, and vitamin K. Examples of water-soluble vitamins include vitamin B and vitamin C (ascorbic acid or its salts). Vitamins belonging to the vitamin B group include vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin B3 (niacin), vitamin B5 (pantothenic acid), vitamin B6 (pyridoxine or its salt, pyridoxal, pyridoxamine), vitamin B7 (biotin), vitamin B12, pantothenic acid, and folic acid. These vitamins may be in the form of salts or derivatives. These may be used alone or in combination of two or more.

[0019] In particular, the powder for consumption of the present invention is preferably one containing water-soluble vitamins, as these vitamins are prone to deterioration during storage, and therefore the technical significance of applying the present invention is excellent. In particular, it is preferable to use at least one selected from vitamin C (ascorbic acid or its salt), vitamin B2 (riboflavin), and vitamin B6 (pyridoxine or its salt, pyridoxal, pyridoxamine). Vitamin C is often added to protein powders because it is necessary for collagen synthesis, but it is easily oxidized by air, causing it to lose its activity. Vitamin C itself also acts as an antioxidant, helping to prevent deterioration of beverage powders. Vitamin B2 acts as a coenzyme for oxidoreductases involved in the metabolism of carbohydrates, lipids, and proteins, and in energy production. For this reason, it is often added to protein powders, but it is easily soluble in water and easily decomposed by light and alkali. Vitamin B6 acts as a coenzyme for oxidoreductase enzymes involved in protein metabolism and energy production. Vitamin B6 is sometimes used alone, and because vitamin B2 is used when vitamin B6 is activated, it is sometimes added to protein powder together with vitamin B2. It is easily soluble in water and is vulnerable to acid and light, so it loses its activity when exposed to these conditions.

[0020] Examples of ascorbic acid salts include alkali metal salts and alkaline earth metal salts. Examples of alkali metal salts include sodium salts and potassium salts. Examples of alkaline earth metal salts include calcium salts and magnesium salts. Examples of pyridoxine salts include hydrochloride, sulfate, nitrate, hydrobromide, and phosphate.

[0021] When a vitamin is contained in a powder for consumption, it is preferable that the protein powder and the vitamin are mixed together. When the protein powder is a granulated product, one method for mixing the protein powder and the vitamin is to mix the granulated product with the vitamin after granulation, but this is not limiting, and the vitamin may also be added to the protein before granulation.

[0022] Examples of emulsifiers include glycerin fatty acid esters, organic acid monoglycerides, propylene glycol fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, and lecithin. Examples of glycerin fatty acid esters include esters of glycerin and fatty acids, as well as glycerin acetate esters, glycerin acetate fatty acid esters, glycerin lactate fatty acid esters, glycerin citric acid fatty acid esters, glycerin succinate fatty acid esters, glycerin diacetyltartaric acid fatty acid esters, polyglycerin fatty acid esters, and polyglycerin condensed ricinoleate esters. Examples of lecithins include fractionated lecithin, enzymatically hydrolyzed lecithin, enzymatically treated lecithin, and hydrogenated lecithin. Lecithin is a mixture primarily composed of phospholipids containing unsaturated fatty acids, and the use of lecithin in the present invention is particularly preferred due to its significant effect of preventing lecithin deterioration due to oxidation.

[0023] When an emulsifier is contained in a powder for consumption, it is preferable that the protein powder and the emulsifier are mixed together. When the protein powder is a granulated product, one method for mixing the protein powder and the emulsifier includes, but is not limited to, dissolving or dispersing the emulsifier in an aqueous liquid such as water and adding it as a binder when granulating the protein.

[0024] 1(b) and 2(b), the container 12 of this embodiment has at least a front portion 13A and a back portion 13B facing each other, and further has a pair of side portions 14, 14 connecting the front portion 13A and the back portion 13B, and a bottom portion 15. The front portion 13A, the back portion 13B, and the bottom portion 15 are preferably flat in an unfolded state described below. In the examples of Figures 1 and 2, the container 12 stands upright so that the sealing portion 17 is located at the upper side of the front portion 13A and the back portion 13B. The sealing portion 17 is a sealed opening through which the edible powder is introduced when the packaged food or beverage 10 is produced. Sealing is usually performed by heat sealing or the like. In the example shown in Figure 2, the bottom portion 15 is located on the opposite side of the sealing portion 17 when the front portion 13A and the back portion 13B are stretched in the vertical direction Y'. Figures 3(a) to 3(c) show examples of containers used in the present invention, showing schematic front views of the container in an unfolded state, with Figure 3(a) corresponding to the container shown in Figure 1. As shown in Figure 3(a), the front portion 13A has a shape that is elongated in one direction, and it is preferable that the direction from the bottom portion 15 toward the sealing portion 17 is the longitudinal direction Y of the front portion 13A from the viewpoint of ease of use of the container 12. Although not shown, in this embodiment, the rear portion 13B is also elongated in one direction like the front portion 13A, with the longitudinal direction extending from the bottom portion 15 toward the sealing portion 17. In the example shown in Figures 1, 2, and 3, the front portion 13A and the rear portion 13B are identically rectangular, specifically rectangular. The longitudinal direction Y and the shape here are determined when the powder for consumption is removed from the container and the front portion 13A and the rear portion 13B are unfolded to maximize their area (hereinafter also referred to as the "unfolded state").

[0025] In the example shown in Figures 1 and 2, a pair of opposing side portions 14, 14 are continuous with the front portion 13A and the back portion 13B to form side walls surrounding the bottom portion 15 of the container 12. The bottom portion 15 is continuous with the front portion 13A, the back portion 13B, and the side portions 14, 14 while being surrounded by them. When the powder for food or drink is sealed inside the container 12, it is preferable that the bottom portion 15 has a flat shape rather than a downwardly convex shape, as this makes it easier to degas the inside of the container 12 and adjust it to a suitable gas content, as described below. In the example shown in Figures 1 and 2, the bottom portion 15 is rectangular in plan view, specifically, oblong.

[0026] The pair of front portion 13A and rear portion 13B are joined together at their upper ends, thereby forming a sealing portion 17. In the example shown in FIG. 2, the side portions 14, 14 have a shape that narrows toward the sealing portion 17 in the longitudinal direction Y. As shown in the figure, the front portion 13A and the rear portion 13B are joined and sealed at their upper end surfaces facing each other, thereby forming the sealing portion 17. Alternatively, the side portions 14, 14 may have a rectangular shape in a side view. In this case, for example, an upper surface portion parallel to the bottom surface portion 15 is provided between the front portion 13A and the rear portion 13B.

[0027] In a container such as the container 10 shown in Figures 1 and 2, which has a front portion 13A and a back portion 13B facing each other, and further has a bottom portion 15 or a pair of side portions 14, 14 connecting the front portion 13A and the back portion 13B, the internal space formed by the front portion 13A and the inner surface of the bottom portion 15 and / or the side portions 14, 14 serves as a storage space for powder for consumption or drinking. In addition, in a container 110 described below in which the front portion 13A and the back portion 13B have a shape in which they are joined to each other at their respective peripheral portions, the storage space is a space surrounded by the inner surfaces of the front portion 13A and the back portion 13B.

[0028] In this embodiment, the area of ​​the front portion 13A and the area of ​​the back portion 13B are both larger than the area of ​​the side portion 14 and the area of ​​the bottom portion 15. The areas referred to here refer to the areas in the unfolded state.

[0029] The container 12 is made of a flexible material with gas barrier properties. A flexible material is a material that can be easily bent without breaking. Gas barrier properties refer to poor permeability to oxygen and the like. In particular, the flexible material preferably has poor oxygen permeability and poor water vapor permeability. In particular, the container 12 used in the present invention preferably has poor oxygen permeability, poor water vapor permeability, and poor light permeability. In this specification, "poor permeability" also includes impermeability.

[0030] In the container 12, when the volume of the edible powder present in the storage space is V and the volume of the gas present in the storage space is v, the gas content v / V expressed as v / V is preferably 40% or less, more preferably 30% or less, even more preferably 25% or less, even more preferably 20% or less, particularly preferably 18% or less, especially preferably 15% or less, and of these, 12% or less is preferred. By keeping the gas content v / V in the container 12 below the upper limit, it is possible to prevent the alteration of vitamins and the deterioration of the emulsifier, and it is possible to maintain the quality of the edible powder inside, such as its color, flavor, texture, and solubility in water.It is also preferable in that it has excellent volume reduction properties and effectively improves transportability.

[0031] Furthermore, the gas content v / V is preferably 0% or more, more preferably 0.01% or more, even more preferably 0.5% or more, even more preferably 0.6% or more, particularly preferably 0.7% or more, and particularly preferably 0.8% or more. Even when the gas content v / V is 0%, a small amount of air typically exists in the container, and the container is not a vacuum. Here, "not a vacuum" means that the pressure is not negative, that is, the pressure is atmospheric pressure or higher. By ensuring that the gas content v / V is equal to or greater than the lower limit, wrinkles on the container surface, which would impair the appearance, and the contents can be prevented from forming solidified portions. If solidified portions form, it will be necessary to break them up by hand or the like before using the contents. Furthermore, if the gas content v / V is above the lower limit, the edible powder can move slightly inside, making it easier to distribute the edible powder evenly in the container 12, and this is also preferable in that it makes the thickness in the Z direction (depth Z1) uniform, for example, thereby further improving the transportability of the containerized food and beverage 10.

[0032] As described above, the gas content v / V (%) in the container 12 is the ratio between the volume v of the gas in the storage space in the container 12 and the volume V of the edible powder that is the content in the storage space of the container 12 (hereinafter also referred to as the "internal volume"). The volume v of the gas in the container 12 is determined by sealing the check valve 16 in the container 12, inserting a syringe needle into the container so that there is no air leakage, and measuring the amount of gas removed by aspirating with the syringe until negative pressure is created inside the container and the plunger is pulled back. Specifically, it can be determined by the method described in the examples below. The inventors believe that the volume v of the gas present in the storage space does not include the amount of air present in the gaps between the edible powder contents. On the other hand, the volume V of the edible powder in the container 12 can be calculated from the amount (g) of the edible powder content and the packed bulk density (g / ml).

[0033] To further enhance the effect of the gas content v / V, the ratio Pw / Lv (g / L) of the mass Pw (g) of the edible powder per 1 L of the volume Lv in the container 12 is preferably 70 g / L to 300 g / L, and more preferably 80 g / L to 250 g / L. The volume Lv here refers to the maximum volume of the container 12. The maximum volume is the maximum internal volume when the container is sealed, and includes the volume of the food or drink if the container contains food or drink.

[0034] Furthermore, from the viewpoint of preventing caking and maintaining the quality of the powder for consumption or consumption, the volume v of the gas determined as described above is preferably 10 ml or more and 800 ml or less, more preferably 30 ml or more and 600 ml or less, and particularly preferably 60 ml or more and 200 ml or less.

[0035] The volume V of the powder for consumption in the container 12 is preferably 900 ml to 7000 ml, more preferably 950 ml to 6500 ml, even more preferably 1200 ml to 6500 ml, still more preferably 1600 ml to 6500 ml, and particularly preferably 3200 ml to 6000 ml.

[0036] The gas in the container 12 is preferably air. In the present invention, the quality of the powder for consumption or consumption can be maintained without replacing the gas in the container 12 with an inert gas such as nitrogen, and both production costs and quality maintenance can be achieved.

[0037] 1, 3, and 4, in this embodiment, the check valve 16 is disposed on the front surface portion 13A of the container 12. In the example shown in FIG. 3, the check valve 16 is disposed on the outer surface side of the front surface portion 13A, but it may also be disposed on the inner surface side. Furthermore, the check valve 16 is formed in a generally circular shape in a plan view as shown in FIG. 4, but it may also have another shape, such as a rectangular shape. The check valve 16 may also be disposed on the rear surface portion 13B instead of or in addition to being disposed on the front surface portion 13A. The container shown in FIG. 1 is preferably made of a soft material, so that when the air inside is released and the volume is reduced, the sealing portion 17 will fold with the back portion 13B facing inward, even without any fold lines being provided in advance.

[0038] The check valve 16 is provided in a through-hole (not shown) in the front portion 13A. Although not shown, the check valve 16 may be composed of, for example, a filter plate made of nonwoven fabric covering the through-hole in the front portion 13A; an annular base plate laminated and fixed to the filter plate on the outside of the container; an annular spacer plate laminated and fixed to the base plate on the outside of the container and having a through-hole with a larger diameter than the base plate; a diaphragm formed with a smaller diameter than the spacer plate and attached to the outside of the container on the base plate by a sealing fluid layer such as silicone oil or silicone adhesive so as to be able to open and close the through-hole in the base plate; and a surface plate having a hole with a smaller diameter than the hole in the spacer plate, adhesively fixed to the outside of the container on the spacer plate, and having a convex portion on the inside surface of the container that supports the peripheral edge of the diaphragm on the outside surface of the container. The base plate, spacer plate, and surface plate can all be made of plastic film. The size of the outer shape of the check valve 16 when viewed from above may be, for example, a circle equivalent diameter of 19 mm to 21 mm. In this type of check valve 16, when suction is applied from outside the container 12, the suction pressure acts on the diaphragm through the through opening. When the suction pressure on the container 12 exceeds a predetermined pressure and the pressure acting on the diaphragm through the through opening increases, the seal between the base plate and the diaphragm by the sealing fluid layer is partially released, forming a gas flow path between the gap between the base plate and the diaphragm and the through opening. Gas inside the container 12 is discharged to the outside through this flow path. Thereafter, when the suction pressure on the container 12 falls below the predetermined pressure, the gap between the base plate and the diaphragm is again sealed by the sealing fluid layer. In other words, air is blocked from entering the container 12 from the outside. According to the check valve 16 of this embodiment, the through opening is covered with a filter plate made of nonwoven fabric. Therefore, even if a gas flow from the inside of the container 12 toward the diaphragm occurs due to back pressure outside the container 12 and the food powder inside the container 12 is carried by the gas flow, the powder can be selectively captured by the filter plate. This prevents the food powder from passing through the through opening and reaching the diaphragm side.

[0039] 3(a) to 3(c) show examples of the deployed state of the front part 13A. As shown in FIG. 3, the check valve 16 is preferably provided in the central region of the front part 13A where the check valve 16 is provided. The central region is the area between the end E on the sealing part 17 side and the length L in the longitudinal direction Y when the front part 13A or the back part 13B where the check valve 16 is provided is viewed from the outer surface side. U The ratio (L1 / L) of the length L1 in the same direction Y from the check valve 16 to the width W in the width direction X is in the range of 30 to 70%, and the width direction left end E L The ratio (W1 / W) of the distance W1 from the front edge to the width direction X is 40 to 60%. The width direction X refers to a direction parallel to the front face portion 13A in the unfolded state described above and perpendicular to the longitudinal direction Y. As described above, an example of the front face portion 13A corresponding to Figs. 1 and 2 is Fig. 3(a).

[0040] If the check valve 16 is located in the central region, when a suction device is attached to the check valve 16 and suction pressure is applied around the check valve 16 inside the container 12 to remove the air, the density of the food and beverage powder around the check valve 16 inside the container 12 can be easily maintained at an appropriate level, so air can be removed more easily than at other positions, and as a result, the thickness of the food and beverage powder (thickness in the Z direction in Figure 2) can be made more uniform, improving transportability. In addition, by making the thickness of the food and beverage powder more uniform, the area of ​​the food and beverage powder that comes into contact with air can be made smaller, making it easier to maintain quality.

[0041] In manufacturing container 10, food or beverage is placed into container 12 through the opening of container 12 while container 12 is still in an open state (not shown) with sealing portion 17 unsealed, and then heat sealing or the like is used to seal sealing portion 17. Next, as shown in FIG. 5, sealed container 10 is laid down with the face portion of front portion 13A or back portion 13B on which check valve 16 is not provided (back portion 13B in the example of FIG. 5) facing downwards, and an aspirator 26 is attached to check valve 16 with check valve 16 facing upward, and the interior of container 10 is degassed through check valve 16 by suction pressure from outside container 10. As shown in FIG. 5, it is preferable to attach aspirator 26 to check valve 16 while container 10 before degassing is held down from above by holding portion 25, and to suck air upward from check valve 16 to prevent displacement during or after suction. Examples of holding portion 25 include a plate-like member made of plastic or the like. In this embodiment, such degassing process degasses the container 10 (FIGS. 1(a) and 2(a)) before degassing by a predetermined amount, resulting in a container 10 (FIGS. 1(b) and 2(b)) with a gas content of 40% or less.

[0042] The suction device 26 is not particularly limited as long as it can suck air through the check valve 16 and achieve a gas content that produces the effects of the present invention, and examples thereof include a vacuum pump. Specific examples of vacuum pumps include an oil-sealed rotary vacuum pump, a Kinney vacuum pump, a rotary vane vacuum pump, a Teflon (registered trademark) diaphragm dry vacuum pump, a water-sealed vacuum pump, a mechanical booster pump, and an oil diffusion pump.

[0043] To further enhance the above-mentioned effects, in this embodiment, the ratio (L1 / L) in the central region is more preferably 35 to 65%, and particularly preferably 40 to 62.5%. Also, the ratio (W1 / W) is more preferably 45 to 55%, and particularly preferably 47.5 to 52.5%. Figures 3(a) to (c) satisfy the above-mentioned ranges.

[0044] The longitudinal length L of the front surface portion 13A is preferably 250 to 500 mm, more preferably 275 to 475 mm, and particularly preferably 290 to 450 mm. The width W is preferably 150 to 330 mm, more preferably 175 to 315 mm, and particularly preferably 190 to 300 mm. As shown in FIG. 2, when the container 12 has a bottom portion or a pair of side portions, the depth Z1 is preferably 50 to 120 mm, and more preferably 90 to 115 cm. The depth Z1 here refers to the length in the thickness direction (Z direction) of the container 12, and refers to the direction perpendicular to the longitudinal direction Y' (vertical direction) and the width direction X when the powder inside the container is removed and the container is filled with air to the maximum extent possible, with the longitudinal direction of the front surface portion aligned parallel to the vertical direction.

[0045] Suitable materials for the container 12 used in the present invention include metallized films, laminated sheets of metallized films and synthetic resins, and laminated sheets of metal foil and synthetic resins, in terms of flexibility and poor oxygen permeability, water vapor permeability, and light permeability. Metallized films are preferably synthetic resin films with metal vapor deposited on them. Metallized films are films with metal vapor deposited on the surface of polyester, polyamide, or other films. Examples of metals in metal-deposited films and metal foils include aluminum, gold, silver, iron, steel, copper, nickel, and alloys containing these as the main component (for example, a total of 60 mass % or more, more preferably 90 mass % or more of these metals). Aluminum is preferred as the metal in metal-deposited films and metal foils.

[0046] As the synthetic resin in a laminate sheet of a metallized film and a synthetic resin or a laminate sheet of a metal foil and a synthetic resin, a thermoplastic resin is preferred from the viewpoint of heat sealing properties. Examples of thermoplastic resins include polyolefin-based resins. Examples of polyolefin-based resins include polyethylene (PE), low-density polyethylene (LDPE), medium-density polyethylene (MDPE), high-density polyethylene (HDPE), linear low-density polyethylene (LLDPE), polypropylene, ethylene-vinyl acetate copolymer, ethylene-ethyl (meth)acrylate copolymer, ethylene-(meth)acrylic acid copolymer, and ethylene-propylene copolymer. Among these, polyethylene-based resins or polypropylene-based resins are preferred. A polyethylene-based resin refers to a resin in which 60% by mass or more of its constituent monomers are ethylene monomers, and the same applies to polypropylene-based resins. In the laminated sheet of a metallized film and a thermoplastic resin and the laminated sheet of a metal foil and a thermoplastic resin, the thermoplastic resin layer is preferably disposed as an inner layer for heat sealing.

[0047] Furthermore, in a metallized film, a laminated sheet of a metallized film and a synthetic resin, or a laminated sheet of a metal foil and a synthetic resin, another layer may be laminated on the outer layer side of the metallized film or metal foil. Suitable examples of such an outer layer (e.g., the outermost layer) include a thermoplastic resin film selected from polyethylene terephthalate (PET), biaxially oriented polypropylene (OPP), polyamide, and nylon (ONY). By laminating such an outer resin layer on the metallized film or metal foil, the gas barrier properties can be further improved.

[0048] The flexible material constituting the container 12 preferably has a thickness of 50 μm to 110 μm, more preferably 60 μm to 100 μm, and particularly preferably 70 to 90 μm. In this specification, the thickness of the flexible material refers to the sum of the thicknesses of the multiple layers (total thickness) when the flexible material is a laminate of multiple layers.

[0049] The food / drink container 10 is a single-layer container in which the outer surface of the container film that forms the inner wall of the storage space in which the contents are stored is exposed to the outside of the container. However, the container 10 may be a double-layer container.

[0050] The powder for consumption is further explained below. In the powder for consumption, the protein content is preferably 10% by mass or more, as this provides excellent effects by adopting a specific gas content described below. From this viewpoint, the protein content in the powder for consumption is preferably 25% by mass or more, more preferably 50% by mass or more, even more preferably 70% by mass or more, and particularly preferably 90% by mass or more. Furthermore, the proportion of protein in the powder for consumption or consumption may be 99.9% by mass or less, 99% by mass or less, or 98% by mass or less.

[0051] The content of vitamins in the powder for consumption or consumption is preferably 0.0000001 mass% or more in total, more preferably 0.00001 mass% or more, even more preferably 0.0001 mass% or more, and even more preferably 0.01 mass% or more, in order to provide nutrients, maintain or improve protein metabolism in the body, and achieve the technical significance of adopting the specific gas content of the present invention.

[0052] The content of vitamins in the powder for consumption or drinking is preferably 5% by mass or less in total, more preferably 4% by mass or less, even more preferably 3% by mass or less, and even more preferably 1.6% by mass or less, in terms of making it easier to obtain the effects of the present invention, reducing the manufacturing costs of the powder for consumption or drinking, and fully utilizing the health benefits of the vitamins.

[0053] In powders for consumption, the content of vitamins is preferably 0.00001 mass parts or more, more preferably 0.0001 mass parts or more, even more preferably 0.001 mass parts or more, and even more preferably 0.01 mass parts or more, as the total amount of vitamins per 100 mass parts of protein, in order to provide nutrients, maintain or improve protein metabolism in the body, and achieve the technical significance of adopting the specific gas content of the present invention. In the powder for consumption, the content of vitamins is preferably 4 parts by mass or less in total of vitamins per 100 parts by mass of protein, more preferably 3 parts by mass or less, even more preferably 2 parts by mass or less, and even more preferably 1.6 parts by mass or less, in order to easily obtain the effects of the present invention, reduce the manufacturing costs of the powder for consumption, and fully utilize the health benefits of vitamins.

[0054] The vitamin C content in the powder for consumption or drinking is preferably 0.00001% by mass or more, more preferably 0.0001% by mass or more, even more preferably 0.001% by mass or more, and even more preferably 0.01% by mass or more, for the purpose of replenishing nutrients, maintaining or improving protein metabolism in the body, achieving the excellent technical significance of adopting the specific gas content of the present invention, and preventing deterioration of the appearance, flavor, odor, and texture of the powder for consumption or drinking during storage.

[0055] The vitamin C content in the powder for consumption or drinking is preferably 2% by mass or less, more preferably 1.5% by mass or less, even more preferably 1.0% by mass or less, and even more preferably 0.6% by mass or less, in order to make it easier to obtain the effects of the present invention, reduce the manufacturing costs of the powder for consumption or drinking, and fully utilize the health benefits of the vitamin.

[0056] In the powder for consumption, the content of vitamin C is preferably 0.0001 parts by mass or more per 100 parts by mass of protein, more preferably 0.001 parts by mass or more, even more preferably 0.01 parts by mass or more, and even more preferably 0.1 parts by mass or more, for the purpose of supplementing nutrients, maintaining or improving protein metabolism in the body, the excellent technical significance of adopting the specific gas content of the present invention, and preventing deterioration of the appearance, flavor, smell, and texture of the powder for consumption during storage. In the powder for consumption, the content of vitamin C is preferably 3 parts by mass or less per 100 parts by mass of protein, more preferably 2 parts by mass or less, even more preferably 1 part by mass or less, and even more preferably 0.6 parts by mass or less, in order to easily obtain the effects of the present invention, reduce the manufacturing costs of the powder for consumption, and fully utilize the health benefits of vitamin C.

[0057] The content of vitamin B2 in the powder for consumption or consumption is preferably 0.0000001% by mass or more, more preferably 0.000001% by mass or more, even more preferably 0.00001% by mass or more, and even more preferably 0.0001% by mass or more, for the purpose of supplementing nutrients, maintaining or improving protein metabolism in the body, and achieving the technical significance of adopting the specific gas content of the present invention.

[0058] The content of vitamin B2 in the powder for consumption is preferably 2% by mass or less, more preferably 1.5% by mass or less, even more preferably 1.0% by mass or less, and even more preferably 0.6% by mass or less, in order to make it easier to obtain the effects of the present invention, reduce the manufacturing costs of the powder for consumption, and fully utilize the health benefits of the vitamin.

[0059] In powders for consumption, the content of vitamin B2 is preferably 0.000001 parts by mass or more per 100 parts by mass of protein, more preferably 0.00001 parts by mass or more, even more preferably 0.0001 parts by mass or more, and even more preferably 0.001 parts by mass or more, for the purpose of supplementing nutrients, maintaining or improving protein metabolism in the body, and achieving the technical significance of adopting the specific gas content of the present invention. In the powder for consumption, the content of vitamin B2 is preferably 2 parts by mass or less per 100 parts by mass of protein, more preferably 1.5 parts by mass or less, even more preferably 1.0 part by mass or less, and even more preferably 0.6 part by mass or less, in order to make it easier to obtain the effects of the present invention, reduce the manufacturing costs of the powder for consumption, and fully utilize the health benefits of the vitamin.

[0060] The vitamin B6 content in the powder for consumption or consumption is preferably 0.0000001% by mass or more, more preferably 0.000001% by mass or more, even more preferably 0.00001% by mass or more, and even more preferably 0.0001% by mass or more, for the purpose of supplementing nutrients, maintaining or improving protein metabolism in the body, and achieving the technical significance of adopting the specific gas content of the present invention.

[0061] The vitamin B6 content in the powder for consumption is preferably 2% by mass or less, more preferably 1.5% by mass or less, even more preferably 1.0% by mass or less, and even more preferably 0.6% by mass or less, in order to make it easier to obtain the effects of the present invention, reduce the manufacturing costs of the powder for consumption, and fully utilize the health benefits of the vitamin.

[0062] In powders for consumption, the content of vitamin B6 is preferably 0.000001 parts by mass or more per 100 parts by mass of protein, more preferably 0.00001 parts by mass or more, even more preferably 0.0001 parts by mass or more, and even more preferably 0.001 parts by mass or more, for the purpose of supplementing nutrients, maintaining or improving protein metabolism in the body, and achieving the technical significance of adopting the specific gas content of the present invention. In the powder for consumption, the content of vitamin B6 is preferably 2 parts by mass or less per 100 parts by mass of protein, more preferably 1.5 parts by mass or less, even more preferably 1.0 part by mass or less, and even more preferably 0.6 part by mass or less, in order to make it easier to obtain the effects of the present invention, reduce the manufacturing costs of the powder for consumption, and fully utilize the health benefits of the vitamin.

[0063] In terms of the content of the emulsifier in the powder for consumption, the function of the emulsifier such as improving the solubility of the protein powder in water, and the excellent technical significance of adopting the specific gas content of the present invention, the content is preferably 0.00001% by mass or more, more preferably 0.0001% by mass or more, even more preferably 0.001% by mass or more, even more preferably 0.01% by mass or more, and particularly preferably 0.1% by mass or more.

[0064] The content of emulsifier in the powder for consumption or drinking is preferably 10% by mass or less, more preferably 8% by mass or less, even more preferably 7% by mass or less, even more preferably 6.5% by mass or less, and particularly preferably 6.1% by mass or less, in order to more easily obtain the effects of the present invention, reduce the manufacturing costs of the powder for consumption or drinking, and fully exert the health benefits of the emulsifier. In powders for consumption, the content of emulsifier is preferably 0.001 mass parts or more per 100 mass parts of protein, more preferably 0.01 mass parts or more, even more preferably 0.1 mass parts or more, and even more preferably 1 mass part or more, in terms of enabling the emulsifier to exert its function and the excellent technical significance of adopting the specific gas content of the present invention. In powders for consumption, the content of emulsifier is preferably 12 parts by mass or less per 100 parts by mass of protein, more preferably 10 parts by mass or less, even more preferably 8 parts by mass or less, and even more preferably 7 parts by mass or less, in order to easily obtain the effects of the present invention, reduce the manufacturing costs of powders for consumption, and fully utilize the function of the emulsifier.

[0065] The powder for consumption is preferably a powdered beverage, taking advantage of the anti-caking properties and quality retention provided by the inclusion of a specific gas content. Examples of powdered beverages include powdered plants or their derived substances, powdered animals or their derived substances, powdered bacteria such as lactic acid bacteria, bifidobacteria, and yeast or their derived substances, powdered fungi or their derived substances, and powdered seaweed or their derived substances. Specific examples of powdered beverages include green juice, smoothies, protein, powdered milk, coffee (regular coffee, instant coffee, cafe au lait, etc.), tea (green tea, black tea, oolong tea, milk tea, etc.), cocoa, soup, miso soup, seasoning, sake, and oil.

[0066] When the powder for consumption or consumption contains ingredients other than proteins, vitamins, and emulsifiers, the other ingredients may include, for example, dietary fiber such as water-soluble dietary fiber and insoluble dietary fiber, minerals, plants or processed plant products, algae, microorganisms such as lactic acid bacteria and yeast, etc. Furthermore, if necessary, ingredients commonly used in the food industry such as sugars such as dextrin and starch, oligosaccharides, sweeteners, acidulants, colorants, thickeners, glazing agents, excipients, nutritional supplements, binders, lubricants, stabilizers, diluents, bulking agents, food additives, seasonings, etc. may also be added.

[0067] The powder for consumption in the present invention may be in the form of a granulated powder or a non-granulated powder, but is preferably a granulated powder. Granulation methods for obtaining granulated powder include fluidized bed granulation, extrusion granulation, tumbling granulation, and stirring granulation. When producing the granulated powder, proteins and vitamins or emulsifiers can be added.

[0068] The powder for food or drink preferably has an average particle size of 10 μm or more, more preferably 20 μm or more, even more preferably 30 μm or more, and particularly preferably 60 μm or more. The powder for food or drink preferably has an average particle size of 800 μm or less, more preferably 600 μm or less, even more preferably 400 μm or less, and particularly preferably 200 μm or less. When the particle size of the powder for food or drink is below the upper limit and / or above the lower limit, the gas content is easily achieved, and the quality maintenance effect due to the gas content is even more excellent. The average particle size of the powder for consumption is the volume cumulative particle size at 50% of the cumulative volume measured by a laser diffraction / scattering light particle size distribution measuring device.

[0069] The bulk density of the powder for consumption is preferably 0.01 g / ml or more, more preferably 0.05 g / ml or more, and even more preferably 0.09 g / ml or more. The bulk density of the powder for consumption is preferably 0.9 g / ml or less, more preferably 0.8 g / ml or less, and even more preferably 0.7 g / ml or less. When the bulk density of the powder for consumption is below the upper limit and / or above the lower limit, the gas content is easily achieved, and the quality maintenance effect due to the gas content is even more excellent.

[0070] The powder for consumption preferably has a packed bulk density of 0.1 g / ml or more, more preferably 0.15 g / ml or more, and even more preferably 0.2 g / ml or more. The powder for consumption preferably has a packed bulk density of 1.0 g / ml or less, more preferably 0.7 g / ml, and even more preferably 0.65 g / ml or less. When the packed bulk density of the powder for consumption is below the upper limit and / or above the lower limit, the anti-caking and quality-maintaining effects due to the gas content are even more excellent.

[0071] When the bulk density (loose bulk density) of a powder for food or drink is D1 and the packed bulk density is D2, the bulk density is D1 and the packed bulk density is D2, and the compressibility (%) of the powder for food or drink, expressed by the formula: [(D2-D1) / D2] x 100 (%), is preferably 8% or more, more preferably 15% or more, even more preferably 17% or more, and particularly preferably 20% or more. The compressibility is preferably 60% or less, particularly preferably 55% or less, and even more preferably 50% or less. When the compressibility of the powder for food or drink is below the upper limit and / or above the lower limit, the gas content is easily achieved, and the quality maintenance effect due to the gas content is even more excellent.

[0072] The moisture content of the powder for consumption is preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 6% by mass or less. The moisture content is preferably 1.5% by mass or more. When the moisture content of the powder for consumption is within this range, the prevention of caking and the quality maintenance effect due to the gas content are more excellent. The moisture content is measured using an infrared moisture meter.

[0073] According to the present invention, the quality of the food powder can be effectively maintained in the container 10 containing the food or beverage whose volume has been reduced by degassing. This allows the container 12 to be mailed, for example, by non-standard mail (within the standard size) such as Yu-Pack (registered trademark), thereby reducing transportation costs. Furthermore, the container 12 can be easily reduced in volume and mailed, for example, by standard mail (non-standard size) such as Yu-Pack (registered trademark) in size 60 (total length, width, and thickness of 60 cm), thereby reducing transportation costs. Figure 6 shows how the reduced container 12 is placed in a box for mailing. For example, two standing pouches with a length L of 300 mm, a width W of 200 mm, and a depth Z1 of 100 mm can be placed in a box with a length of 200 mm, a width of 200 mm, and a depth of 200 mm.

[0074] 7 and 8 show another embodiment of the present invention. In the following example, differences from the above embodiment will be mainly described. Other points are the same as the above embodiment. In the containerized food and drink 110 shown in Figures 7 and 8, the container 112 does not have a flat bottom or side surface, but has a shape in which two front and back surfaces 13A, 13B are joined together at their edges. The container 112 before degassing (Figures 7(a) and 8(a)) is degassed from the check valve 16 with the front surface 13A with the check valve 16 facing upward, to become the container 112 according to the present invention (Figures 7(b) and 8(b)). In this embodiment, too, the check valve 16 is located in the central region of the front portion 13A of the container 112, and when a suction device is attached to the check valve 16 and suction pressure is applied around the check valve 16 inside the container 12 to remove air, it is easy to maintain an appropriate density of the edible powder around the check valve 16 inside the container 12, so air can be removed more easily than at other positions.As a result, it is easier to make the thickness of the edible powder (thickness in the Z direction in Figure 8) uniform, which improves transportability and makes it easier to maintain quality.

[0075] In the example shown in FIG. 7, the front portion 13A is rectangular, and the end E extending along the longitudinal direction Y is U , E V and an end E extending along the width direction X R , E LHowever, in the case of a three-sided sealed bag or the like, where a sheet of flexible material is folded once and then stacked in two to form the front portion 13A and the back portion 13B, one of the four edges can be the fold of the two sheets and does not need to be joined. The reduced volume of the container can be placed in a small box and mailed, as shown in Figure 8. For example, a three-sided zipper bag with a length L of 340 mm and a width W of 230 mm can be stored in a box with a length of 229 mm, a width of 338 mm, and a depth of 28 mm. [Example]

[0076] The present invention will be described in more detail below with reference to examples. However, the scope of the present invention is not limited to such examples. Hereinafter, unless otherwise specified, "%" means % by mass and "parts" means parts by mass. In the following examples, containers with the same container number have the same shape, material, and size.

[0077] (Method for measuring bulk density) The measurement was carried out using a Powder Tester® PT-X manufactured by Hosokawa Micron Corporation in accordance with JIS standard K6720. Specifically, the measurement was carried out according to the following procedures a to d. a. Powder tester included, capacity 100cm 3 The weight of the cup was measured. b. Place the powder in the powder tester, vibrate for 30 seconds, with an amplitude of 1.5 mm, and drop the powder into a volume of 100 cm. 3 The powder was filled into a cup, and the powder was stopped from falling when it overflowed from the cup. The powder that overflowed from the cup was scraped off using a cb and the total weight was measured. Calculate the mass of the powder in the cup from the difference between the weight measured at dc and the weight measured at a. 3 The weight of the powder per unit area was determined and used as the bulk density.

[0078] (Method for measuring packed bulk density) The packed bulk density was determined using a powder property evaluation device (Powder Tester PTX manufactured by Hosokawa Micron Corporation). The bulk density was determined in the same manner as above. Next, a cap was attached to the container, and the container was tapped 180 times from a height of 18 mm. After that, the excess powder above the container surface was removed and the weight was measured. The packed bulk density (g / ml) was calculated by dividing the weight (g) of the sample filled in the container after tapping by 100 (ml).

[0079] (Method for measuring particle size) The average particle size of the powder was measured under the following conditions using a laser diffraction / scattering particle size distribution measuring device: Laser Micronsizer LMS-3000 manufactured by Seishin Enterprise Co., Ltd. (protein powder) The dispersion medium was ethanol. Particle refractive index: 1.330 Dispersion medium refractive index: 1.360

[0080] (Method for measuring moisture content) Measurement was carried out using a Sartorius MA35 infrared moisture meter.

[0081] <Examples 1 to 4, Comparative Examples 1 to 4> (Comparative Example 1) A container (container number 1) shown in FIGS. 1 and 2 was prepared. Container No. 1: A flat-bottomed standing pouch measuring 300 mm in maximum height, 200 mm in width, and 100 mm in depth. The materials of this container, from outer to inner layers, were (outer) PET (polyethylene terephthalate, 12 μm thick) / DL (dry laminate) / VMPET (aluminum-vapor-deposited PET film, 12 μm thick) / DL / LLDPE (linear low-density polyethylene film (LL), 50 μm thick) (inner), with a total thickness of 100 μm. This container is open at the top before the contents are sealed inside. Granulated powders of powdered soy protein with added vitamins were produced as follows. Water (210 ml) was used as a binder, and powdered soy protein (Proleena HD101R, Fuji Oil Co., Ltd., 0.7 kg) was charged into the granulation chamber (volume approximately 30 L) of a fluidized bed granulator. The product temperature in the granulation chamber was 43°C, and the air volume was 20 m 3 A gas flow of 30 ml / min at a flow rate of 30 ml / min was blown upward to fluidize the raw material powder. Granulation was carried out while spraying the binder prepared above at a constant rate from the sprayer on top of the machine, after which the spraying was stopped and the machine was dried. The total amount of binder liquid sprayed and the spraying time (granulation time) used for granulation was 210 g and 7 minutes, respectively. The spray air pressure was 0.1 MPa. After spraying was completed, the granulated material in the chamber was dried under the above-mentioned gas flow conditions until the moisture content was 6.0% by mass. The temperature of the gas flow during drying was 70°C and the air volume was 30 m 3 / min. After drying, vitamins L-sodium ascorbate (Nippon Bulk Pharmaceutical Co., Ltd.), riboflavin (HighChem Co., Ltd.), and pyridoxine hydrochloride (HighChem Co., Ltd.) were mixed in to final concentrations of 0.5 mass%, 0.5 mass%, and 0.5 mass%, respectively, for a total of 1.5 mass%. In this way, a granulated product, which is a protein-containing granule, was obtained. The granules had a bulk density of 0.277 g / ml, an average particle size of 89 μm, a moisture content of 5.04 mass%, a packed bulk density of 0.38 g / ml, and a compressibility of 27.1%. 1 kg of this granule was placed in the container and the upper open end was fastened.

[0082] Example 1 In Comparative Example 1, while maintaining the non-vacuum state inside the container, the air inside was removed through the check valve 16 until the air amount and gas content reached the values ​​shown in Table 1. Other than that, the same procedure was followed as in Comparative Example 1.

[0083] (Comparative Example 2) Granulated powder of concentrated whey protein with added vitamins was produced as follows. Water (210 ml) was used as a binder, and concentrated whey protein (WPC80 ISO Chill 8000, Lacto Japan Co., Ltd., 0.7 kg) was charged into the granulation chamber (volume approximately 30 L) of a fluidized bed granulator. The product was heated to a temperature of 43°C and the air volume was 20 m 3A gas flow of 30 ml / min at a flow rate of 30 ml / min was blown upward to fluidize the raw material powder. Granulation was carried out while spraying the binder prepared above at a constant rate from the sprayer on top of the machine, after which the spraying was stopped and the machine was dried. The total amount of binder liquid sprayed and the spraying time (granulation time) used for granulation was 210 g and 7 minutes, respectively. The spray air pressure was 0.1 MPa. After spraying was completed, the granulated material in the chamber was dried under the above-mentioned gas flow conditions until the moisture content was 6.0% by mass. The temperature of the gas flow during drying was 70°C and the air volume was 30 m 3 / min. After drying, vitamins L-ascorbate sodium (Nippon Bulk Pharmaceutical Co., Ltd.), riboflavin (HighChem Co., Ltd.), and pyridoxine hydrochloride (HighChem Co., Ltd.) were mixed to a final concentration of 0.5% by mass, 0.5% by mass, and 0.5% by mass, respectively, for a total of 1.5% by mass. In this way, a granulated product, which is a protein-containing granule, was obtained. The granules had a bulk density of 0.222 g / ml, a packed bulk density of 0.36 g / ml, an average particle size of 142 μm, a moisture content of 5.81% by mass, and a compressibility of 38.3%. 1 kg of this granule was placed in the container and the upper open end was fastened.

[0084] Example 2 In Comparative Example 2, while maintaining the non-vacuum state inside the container, the air inside was removed through check valve 16 until the air amount and gas content reached the values ​​shown in Table 1. Other than this, the procedure was the same as Comparative Example 1. Other than this, the procedure was the same as Comparative Example 2.

[0085] (Comparative Example 3) Granulated powders were prepared by adding lecithin as an emulsifier to powdered soy protein as follows. A solution of lecithin dissolved in water (SLP Paste Lyso, Tsuji Oil Mills, lecithin concentration in the dissolved solution: 30 g / 1.5 L) was used as a binder, and powdered soy protein (Proleena HD101R, Fuji Oil Mills, 0.7 kg) was charged into the granulation chamber (volume approximately 30 L) of a fluidized bed granulator. The product temperature in the granulation chamber was 43°C, and the air volume was 20 m 3A gas flow at a flow rate of 30 ml / min was blown upward to fluidize the raw material powder. Granulation was carried out while spraying the binder prepared above at a constant rate from the sprayer on top of the machine, after which the spraying was stopped and the machine was dried. The total amount of binder liquid sprayed and the spraying time (granulation time) used for granulation was 1050 g and 50 minutes, respectively. The spray air pressure was 0.1 MPa. After spraying was completed, the granulated material in the chamber was dried under the above-mentioned gas flow conditions until the moisture content reached the following: The temperature of the gas flow during drying was 70°C, and the air volume was 30 m 3 / min. In this way, a granulated product, which is a protein-containing granule, was obtained. The granules had a bulk density of 0.258 g / ml, a packed bulk density of 0.46 g / ml, an average particle size of 107 μm, a moisture content of 4.18 mass%, and a compressibility of 43.9%. 1 kg of this granule was placed in the container and the upper open end was fastened.

[0086] Example 3 In Comparative Example 3, while maintaining the non-vacuum state inside the container, the air inside was removed through the check valve 16 until the air amount and gas content reached the values ​​shown in Table 1. Other than that, the same procedure was followed as in Comparative Example 3.

[0087] Comparative Example 4 Granulated powder was prepared by adding lecithin as an emulsifier to concentrated whey protein as follows. A solution of lecithin dissolved in water (SLP Paste Lyso, Tsuji Oil Mills, lecithin concentration in the dissolved solution: 30 g / 1.5 L) was used as a binder, and concentrated whey protein (WPC80 ISO Chill 8000, Lacto Japan, 0.7 kg) was charged into the granulation chamber (volume approximately 30 L) of a fluidized bed granulator. The granulation was carried out at a temperature of 70°C and an airflow of 40–50 m / s. 3A gas flow of 1 / hour was blown upward to fluidize the raw material powder. Granulation was carried out while spraying the binder prepared above at a constant rate from the sprayer on top of the machine, after which the spraying was stopped and the material was dried. The total amount of binder liquid sprayed for granulation was 1050 g, and the spraying time (granulation time) was approximately 50 minutes. The spray air pressure was 0.1 MPa. After spraying was completed, the granulated material in the chamber was dried under the above-mentioned gas flow conditions until the moisture content reached the following: The temperature of the gas flow during drying was 70°C, and the air volume was 30 m 3 / min. In this way, a granulated product, which is a protein-containing granule, was obtained. The granules had a bulk density of 0.225 g / ml, a packed bulk density of 0.44 g / ml, an average particle size of 158 μm, a moisture content of 5.49 mass%, and a compressibility of 48.9%. 1 kg of this granule was placed in the container and the upper open end was fastened.

[0088] Example 4 In Comparative Example 4, while maintaining the non-vacuum state inside the container, the air inside was removed through the check valve 16 until the air amount and gas content reached the values ​​shown in Table 1. Other than that, the same procedure was followed as in Comparative Example 4.

[0089] (Measurement of the volume v of a gas) A syringe-type plunger with a needle at the tip (Ulove Prs, product name: Large-capacity syringe, capacity 300 mL, material: polypropylene) was used. An aluminum seal was attached to the check valve to seal it, and the syringe needle was inserted into the bag over the tape to prevent air leakage around the needle. The air in the container was then aspirated with the syringe until negative pressure was created inside the container and the plunger was pulled back, and the amount of air was measured. After that, for the accelerated test, the amount of air v shown in Table 1 was returned to the container in which the air was measured. After the needle was removed, the hole was sealed with an aluminum seal.

[0090] (Calculation of volume V of powder for consumption) The packed amount (g) is calculated as the bulk density (g / cm 3 ) to calculate the volume V of the powder for consumption, which is the content of the container.

[0091] (Calculation of gas content) It was calculated by dividing the volume of gas v by the volume of the powder for consumption V.

[0092] The containerized foods and drinks of Comparative Examples 1 to 4 and Examples 1 to 4 were subjected to an accelerated test in which the containers were left unopened at 60°C for one week. After the accelerated test, the contents in each container were subjected to a sensory evaluation in comparison with the same contents (immediately after production) that had not been subjected to the accelerated test. 10 g of each sample was dissolved in 150 ml of water for evaluation. The sensory evaluation was carried out by panelists who regularly take in protein and have experience in sensory evaluation. The evaluation items were browning (appearance), taste (sourness, saltiness), texture (roughness (pleasant texture), lingering in the mouth (pleasant aftertaste)), and odor (burnt odor, powdery odor, sulfur odor, and, for samples with added emulsifier, the odor of deteriorated lecithin). The evaluation was carried out as shown below. In addition, the presence or absence of lumps 2 mm or more in diameter was confirmed after stirring 20 times with a medicine spoon. evaluation Better than before the accelerated test: 5 points Slightly better than before the accelerated test: 3 points Same as before the accelerated test: 0 points Slightly worse than before the accelerated test: -3 points Worse than before the accelerated test: -5 points It is best if no browning is observed, and there is no sour or salty taste. There should be no roughness, and it should not leave a lingering taste in the mouth. It is best if there is no smell (burnt smell, powdery smell, sulfur smell, smell of deteriorated lecithin).

[0093] For Examples 1 and 2 and Comparative Examples 1 and 2, the content of each vitamin was measured and the residual rate (%) was calculated. Vitamin Analysis Methods <Method for measuring vitamin content> HPLC analysis conditions Sample preparation Approximately 100 mg of sample was precisely weighed, 2% by mass of metaphosphoric acid was added, and the mixture was thoroughly suspended using ultrasound or the like, and the resulting solution was made exactly 50 mL. The solution was then filtered through a 0.45 μm membrane filter to prepare the sample solution.

[0094] Separately, approximately 10 mg of L-ascorbic acid, riboflavin, and pyridoxine hydrochloride were precisely weighed and dissolved in 2% metaphosphoric acid to make exactly 100 mL, which was used as the standard stock solution. This was then diluted 5, 10, and 20 times with 2% metaphosphoric acid and filtered through a 0.45 μm membrane filter to prepare the standard solutions. The sample solution and standard solution were analyzed by HPLC under the conditions below, and a calibration curve was created from the peak area and concentration of L-ascorbic acid, riboflavin, and pyridoxine hydrochloride in the standard solution. The L-ascorbic acid, riboflavin, and pyridoxine hydrochloride (mg / mL) in the sample were calculated from the created calibration curve, and the contents in the sample were calculated. The HPLC conditions were as follows: Column (Imtakt "C18mm"), inner diameter 3 μm, length 100 mm ·HPLC device (“Nexera-i LC-2040C 3D Plus” manufactured by Shimadzu Corporation) Eluent: Solution A: 0.01% acetic acid mixture, Solution B: acetonitrile ·Flow rate: 0.7ml / min UV detector: L-ascorbic acid 245 nm, riboflavin 265 nm, pyridoxine hydrochloride 290 nm ·Injection volume: 5μl Column temperature: 40℃ Eluent gradient conditions [Table A]

[0095] [Table 1]

[0096] <Volume reduction evaluation> In addition to the container No. 1 described above, the following containers were prepared. Container No. 2: A three-sided zipper bag measuring 340 mm in length and 230 mm in width. The material of this three-sided zipper bag was a laminate film consisting of, from the outer layer to the inner layer, (outer) PET (polyethylene terephthalate, thickness 12 μm) / DL (dry laminate) / VMPET (PET film with aluminum vapor deposition, 12 μm) / DL / LLDPE (linear low-density polyethylene, thickness 50 μm) (inner). The total thickness was 74 μm. The check valve was installed in the position shown in Figure 3(c).

[0097] Container No. 3: It had the same external shape as Container No. 1, with a maximum height of 410 mm, width of 292 mm, and depth of 115 mm. The check valve was installed in the position shown in Figure 3(b). The material was the same as Container No. 1.

[0098] (Comparative Examples 5 to 6) For Comparative Examples 5 and 6, the containers shown in Table 2 were used, and the same concentrated whey protein-containing powder as used in Example 3 was filled in the amounts shown in Table 2. The openings were sealed by heat sealing, and the amount of air inside and the volume of the powder were then measured. The upper limit height position where the contents were present was measured for the obtained containers containing powder for consumption. The three-sided zipper bag of container No. 2 was laid down with the front side facing sideways, while the standing packs of containers No. 1 and 3 were measured in an upright position with the top of the bag folded toward the bottom. The results are shown in Table 2. The constituent films of the containers of container numbers 2 and 3 were the same as those of the container of container number 1.

[0099] (Examples 5 to 7) For Examples 5 to 7, the containers shown in Table 2 were used, and the same concentrated whey protein powder as used in Examples 2 and 4 was filled in the amounts shown in Table 2. The openings were sealed by heat sealing, and the air was then removed so that the air amounts and gas contents were as shown in Table 2. The upper limit height position at which the contents were present was measured in the same manner as in Comparative Examples 5 to 7. The results are shown in Table 2.

[0100] [Table 2]

[0101] It was found that, similarly to Examples 1 to 4, Examples 5 to 7 also exhibited an effect in maintaining the quality of the contents. In Example 7, the container height was less than the height of the shipping box, 193 mm, making it suitable for shipping. Similar volume reduction was achieved in Examples 5 and 6. Furthermore, since the contents did not move even when the container was rotated, and the height and shape of the container did not change, packing into the shipping box could be done quickly.

[0102] (Manufacturing Examples 1 to 9) Powders of the raw materials (other than the fortifying agent preparation and vitamins) listed in Tables 3 and 4 were mixed, and the powder mixture was granulated and then mixed with the fortifying agent preparation and vitamins to produce foods. The produced foods were filled into two containers, packaging container 12 or 112, and then sealed, and the air inside the containers was removed through the check valve. Each production example demonstrated the effects of the present invention.

[0103] [Table 3]

[0104] [Table 4] [Industrial Applicability]

[0105] The present invention provides containerized food and beverage products for various edible powders that have compositions that are prone to deterioration, including vitamins or emulsifiers and proteins, while reducing transportation and production costs and maintaining the quality of the contents, such as the amount of active vitamins, product color, flavor, and texture, over a long period of time. [Explanation of symbols]

[0106] 10, 110 Containerized food and drink 12, 112 Packaging containers 13A Front part 13B Back part 14 Side part 15 Bottom part 16 Check valve

Claims

1. A container-packaged food or beverage having a packaging container having a storage space for contents and a powder for food or beverage filled in the packaging container, The packaging container is made of a flexible material having gas barrier properties, The packaging container has a front portion and a back portion facing each other, and further has a bottom portion or a pair of side portions connecting the front portion and the back portion, or has a shape in which the front portion and the back portion are joined to each other at their peripheral portions, The powder for food or drink contains a protein and at least one selected from a vitamin and an emulsifier, A containerized food or beverage having a gas content expressed as v / V of 40% or less, where v is the volume of the gas present in the storage space and V is the volume of the powder for consumption.

2. 2. The container-packaged food or drink according to claim 1, wherein the powder for consumption has an average particle size of 10 to 800 μm.

3. 3. The container-packaged food or drink according to claim 1, wherein the powder for consumption has a bulk density of 0.01 to 1.0 g / ml.

4. The container-packed food or drink according to claim 1 or 2, wherein the water content is 1 to 10% by mass.

5. 3. The container-packaged food or drink according to claim 1, wherein the powder for consumption is a powdered drink.

6. 3. The container-packaged food or drink according to claim 1, wherein the vitamin is at least one selected from vitamin C, vitamin B2, and vitamin B6, and the emulsifier is lecithin.

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