JP3217546U - PET bottle with oral rehydration solution - Google Patents

Abstract

To provide a PET bottle containing an oral rehydration solution that safely contains an oral rehydration solution whose pH has been reliably lowered by using acidic water as electrolyzed water and citric acid as an active ingredient.
SOLUTION: Drinking ingredients salt and glucose, and citric acid and trisodium citrate are dissolved in electrolyzed acidic water, do not contain phosphorus, and have an osmotic pressure lower than the plasma osmotic pressure of human body 310 mOsm / l. Then, the oral rehydration solution whose pH is adjusted to 3.5 to 3.2 is filled in a PET bottle in a heated state and sealed.
[Selection] Figure 1

Description

  The present invention relates to a PET bottle containing an oral rehydration solution that uses citric acid and has a stable pH.

  In recent years, the number of people who feel thirsty has increased along with changes in the living environment, and frequent drinking of water has been recommended to prevent heat stroke. Therefore, the distribution of beverages such as sports drinks and oral rehydration fluids is also increasing.

  For example, an oral rehydration solution has a function similar to that of physiological saline because water having an osmotic pressure substantially equal to that of a body fluid is smoothly absorbed into the body, and forms a corner of a soft drink today. In general, beverages such as these rehydration solutions often use phosphoric acid as a pH adjuster or use a phosphoric acid compound as a constituent. In addition, liquidity (pH) variation due to a slight difference in mixing ratio during the manufacturing process may cause a difference in sterilization effect and may cause an unexpected situation such as generation of defective products.

  In addition, the sterilization conditions for beverages are regulated by the Food Sanitation Law according to the pH of the contents, etc., and acidic beverages having a pH of less than 4.0 are effective at 65 ° C. for 10 minutes, or equivalently, and It is described that an acidic beverage having a pH of less than 4.0 to 4.6 is subject to a method having a potency of 85 ° C., 30 minutes, or equivalent. Therefore, in products with a pH of 4.0 or higher, the heating conditions are severer than those with a pH of less than 4.0, and thus there is a concern that the cost of heat treatment will increase and the original flavor of the material will be impaired. . Therefore, after adjusting the pH of the beverage to less than 4, sterilization is often performed under relatively mild heating conditions.

  Therefore, as a method of adjusting the pH to a low level, there is a method of adding phosphoric acid as generally disclosed in Patent Document 1. In addition, as disclosed in Patent Documents 2 to 4, drinks in which citric acid is mixed to lower the pH have been proposed.

JP-A-2006-149946 JP 2008-182773 A JP2015-50961A Japanese Patent Laying-Open No. 2015-65848

  Phosphoric acid and phosphoric acid compounds have been approved for use as soft drinks by the Food Sanitation Law, but phosphoric acid is likely to bind directly to calcium in the body. Thus, when the intake of mineral components in the body is insufficient, it binds to the calcium constituting the bone, leading to the extracorporeal excretion of calcium. In particular, it is said that this tendency is obvious in the elderly. Phosphorus itself is an essential ingredient, but as shown in the food ingredient composition table, it is one of the ingredients that should be avoided because it is contained in a wide variety of normal foods. is there.

  From this point of view, it is suitable to avoid the use of phosphorus in the rehydration solution and to use citric acid as the acidulant. Citric acid is a useful ingredient that is contained in many natural foods including citrus fruits and is deeply involved in metabolism in the body as a citric acid cycle. Citric acid is digested in the body and binds to minerals such as calcium like phosphorus and does not have the risk of excreting minerals outside the body, so it can be said to be a completely useful component for health.

  However, as disclosed in Patent Documents 2 to 4, a beverage having a low pH by containing citric acid has a low pH by mixing citric acid with citrus fruits, tapioca, tomato, etc., which are originally acidic beverages. It is adjusted and does not produce a beverage by lowering the pH of neutral drinking water. Accordingly, there has been a demand for a production method capable of effectively lowering pH by suppressing a large change in taste.

  This device has been made in view of the above-mentioned problems of the background art, and by using acidic water as electrolyzed water and citric acid as an active ingredient, an oral rehydration solution whose pH has been reliably lowered can be safely obtained. An object is to provide a stored plastic bottle containing oral rehydration solution.

  In this device, drinking salt and glucose, and citric acid and trisodium citrate are dissolved in electrolyzed acidic water, do not contain phosphorus, and have an osmotic pressure lower than the plasma osmotic pressure 310 mOsm / l of the human body, It is a pet bottle containing an oral rehydration liquid that is filled with an oral rehydration liquid adjusted to pH 3.5 to 3.2 in a heated state and sealed.

  The acidic water is obtained by electrolyzing groundwater.

  The PET bottle with oral rehydration solution of this device has a stable and low pH, the conditions of heat sterilization may be mild, the cost of sterilization treatment can be suppressed, and the influence on the flavor and appearance of the beverage It has been able to be greatly suppressed. And since citric acid is used and does not contain phosphorus, there is no health problem when drinking.

It is the schematic of the manufacturing apparatus of the PET bottle containing an oral rehydration liquid which is one Embodiment of this device. It is a schematic piping diagram which shows the equipment of each dissolution tank and product tank of the manufacturing apparatus of the oral rehydration liquid of this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of an oral rehydration liquid production apparatus 10 which is an apparatus for producing a plastic bottle containing oral rehydration liquid according to an embodiment of the present invention. The oral rehydration solution manufacturing apparatus 10 is provided with a well 12 for taking groundwater as a raw material. A 5 μm filter 14 for filtering the groundwater taken in the well 12, an activated carbon filter 16, a 2 μm filter 17, and a storage tank 18 for storing the filtered groundwater are sequentially provided.

  Downstream of the storage tank 18, a pH adjuster 20 is provided through a 2 μm filter 19, and filtered groundwater is introduced. The other downstream of the storage tank 18 is provided with an electrolyzer 22 that passes through another 2 μm filter 21 and introduces electrolyzed filtered groundwater. Downstream of the electrolyzer 22, an alkaline tank 24 that stores electrolyzed alkaline water and an acidic tank 26 that stores acidic water that is electrolyzed electrolytic water are provided.

  A citric acid tank 27 that supplies citric acid as an electrolyte is connected to the electrolyzer 22. The citric acid concentration in the citric acid tank 27 is, for example, 25%. Alkaline water obtained by electrolysis is unnecessary and is sent from the alkali tank 24 to a waste liquid treatment machine and discarded. The acidic water obtained by electrolysis is stored in the acidic tank 26, introduced into the pH adjuster 20, and used for pH adjustment. The pH adjuster 20 also introduces groundwater filtered by the filter 19, adjusts the pH to less than 4.0, and sends the adjusted pH C to the downstream side. The citric acid tank 27 may contain citric acid compounds such as trisodium citrate in addition to citric acid and may be used for electrolysis. Also, other food-grade electrolytes other than harmless phosphoric acid may be dissolved and supplied to the electrolyzer 22.

  Downstream of the pH adjuster 20, a dissolution tank 28 that dissolves predetermined components including sweeteners in the pH adjusted water C adjusted by the pH adjuster 20, and other solutions containing citric acid in the pH adjusted water C. A dissolution tank 30 for dissolving predetermined components is provided. The dissolution tank 28 and the dissolution tank 30 are each directly connected to the pH adjuster 20. Downstream of the dissolution tank 28 and the dissolution tank 30, a product tank 32 that mixes the aqueous solution A produced in the dissolution tank 28 and the aqueous solution B produced in the dissolution tank 30 to generate an oral rehydration source solution is provided. . The product tank 32 is also connected to the pH adjuster 20 and introduces pH-adjusted water C to dilute the stored oral rehydration source liquid to an appropriate concentration to obtain an oral rehydration liquid D. The dissolution tank 28, the dissolution tank 30, and the product tank 32 are installed in the high clean holding chamber 36.

  FIG. 2 shows a dissolution tank 28, a dissolution tank 30, a product tank 32, and a piping system. In the supply path of pH adjustment water C of each tank, solenoid valves V1, V2, V3 indicated by symbols and flow rates are shown. Integrated flow meters M1, M2, and M3 with settings are provided, and by adjusting the flow rate of the pH-adjusted water C flowing into the tanks 28, 30, and 32, an aqueous solution A, an aqueous solution B, and an oral rehydration solution D having a constant concentration. Can be manufactured continuously. The product tank 32 is provided with a quality check sensor S for measuring pH and the like, and confirms the quality such as pH. Pumps P1, P2, P3, and P4 for supplying the liquid in the tank to the downstream side are provided on the downstream side of the dissolution tanks 28 and 30 and the product tank 32. In the dissolution tank 28, the dissolution tank 30, and the product tank 32, a stirring screw driven by a motor M is provided to make the contained liquid components uniform. The dissolution tank 32 is piped so that the aqueous solution A and the aqueous solution B from the dissolution tank 28 and the dissolution tank 30 and the pH adjustment water C from the pH adjuster 20 are mixed by the pipe mixer 33 and flowed in.

  In the downstream of the product tank 32 and outside the high clean holding chamber 36, a bottle filling machine 34 for filling the plastic bottle with the oral rehydration liquid D made in the product tank 32 is provided. Here, the oral rehydration solution D is filled in a plastic bottle that has been washed with ozone water. The filling is performed by hot filling at 85 ° C. and then sealed to complete the product.

  Next, the manufacturing method of the oral rehydration liquid of this embodiment is demonstrated based on FIG. 1, FIG. In the method for producing an oral rehydration solution according to this embodiment, filtered ground water is introduced into the electrolysis device 22 and an electrolyte such as citric acid is added from the citric acid tank 27 and electrolyzed to obtain acidic water of the electrolyte. The acidic water obtained by electrolysis is temporarily stored in the acidic tank 26 and introduced into the pH adjuster 20. The groundwater filtered by the filter 19 is also introduced into the pH adjuster 20, and pH adjusted water C whose pH is adjusted to less than 4.0 is sent downstream.

  Downstream of the pH adjuster 20, pH adjusted water C is introduced into the dissolution tanks 28 and 30, predetermined components including sweeteners are dissolved in the dissolution tank 28, and other predetermined components including citric acid are dissolved in the dissolution tank. Dissolve at 30. The aqueous solution A produced in the dissolution tank 28 and the aqueous solution B produced in the dissolution tank 30 are sent to the product tank 32, and pH adjusted water C is also introduced into the product tank 32 to dilute it to an appropriate concentration. Replenisher D. The pH at this time is less than 4.0, preferably pH 3.8 to 3.0, more preferably pH 3.5 to 3.2. The prepared oral rehydration solution is filled into a bottle with a hot fill at 85 ° C.

  The oral rehydration solution D produced by the oral rehydration solution production apparatus 10 is adjusted in pH with acidic water of electrolyzed water, adjusted in pH with citric acid and trisodium citrate, and has a pH of less than 4.0, preferably pH 3. It is 8-3.0, More preferably, it is pH 3.5-3.2, for example, is adjusted to about pH 3.2. Accordingly, in accordance with the provisions of the Food Sanitation Law, since the pH is less than 4, heating at 65 ° C. for 10 minutes or sterilization equivalent to or higher is sufficient, and the product is sterilized under mild heating conditions and can be shipped. In particular, when the oral rehydration solution D has a pH of 3.5 to 3.2, the storage stability is high.

An example of the capacity of each tank, the type of pump, and the capacity is shown in Table 1 below.

  In the dissolution tank A28, glucose, sucralose, and fragrance are dissolved in the pH-adjusted water C. In the dissolution tank B30, salt, citric acid, trisodium citrate, potassium lactate, magnesium sulfate, and glutamine are dissolved in the pH adjusted water C. In addition, you may melt | dissolve active ingredients other than this.

Table 2 below shows the concentration and osmotic pressure of each component, the weight when producing 50 m ³ per day, and the tank used for dissolution.

  The pH of oral rehydration solution D produced with the formulation shown in Table 2 is 3.2. Further, 62 mmol of citric acid and 17 mmol of trisodium citrate are dissolved in 1 liter of water, and the pH is equivalent to the pH buffer solution of 3.17. The osmotic pressure of oral rehydration fluid D is 293.9 mOsm / l, which is slightly lower than the plasma osmotic pressure of human body 310 mOsm / l. Thereby, it is possible to quickly absorb moisture and electrolyte components from the intestinal tract.

  According to the method for producing a plastic bottle containing oral rehydration liquid and the oral rehydration liquid production apparatus 10 of this embodiment, an oral rehydration liquid D having a constant concentration can be produced continuously and efficiently. The oral rehydration solution D produced by the oral rehydration solution production apparatus 10 is effectively adjusted to a low pH with acidic water of electrolyzed water, and further contains citric acid and trisodium citrate serving as a pH buffer solution. The pH becomes 4.0 or less, and sterilization can be performed under mild heating conditions, and the cost of sterilization can be reduced. Moreover, the influence which it has on the flavor and external appearance of the oral rehydration liquid D can be suppressed significantly. Moreover, even if there is a change in the production situation, the pH is always kept below 3.5. Since the pH is stable at less than 3.5, it can withstand long-term storage.

  Furthermore, the oral rehydration solution produced according to this embodiment dissolves citric acid, which is a component effective for the human body, using harmless pH-adjusted water C that has been pH-adjusted using acidic water generated by electrolyzer 22. Thus, an oral rehydration solution D can be prepared, and it is safe without using a substance that requires attention to intake such as phosphoric acid as a pH lowering agent. Even if the pH is adjusted to an acidic level using an edible acid, in the case of a beverage with a light taste such as an oral rehydration solution, it becomes sour and unfit for drinking, but the acidic water of electrolyzed electrolytic water is used. Thereby, even if the density | concentration of edible acid is thin, a highly acidic drink with low pH can be manufactured. In addition, citric acid is a useful ingredient that is contained in many natural foods such as citrus fruits and is deeply involved in metabolism in the body as a citric acid cycle. Citric acid is digested in the body and is calcium like phosphorus. It is a very useful ingredient for health without the fear of excretion of minerals outside the body by combining with equal minerals. Since citric acid is used also in the electrolysis, acidic water suitable for food can be produced, and a safe oral rehydration solution D can be produced.

  In addition, the PET bottle containing an oral rehydration solution of the present invention is not limited to the above embodiment, and can be changed as appropriate. The type of filter for filtering the groundwater taken can be changed freely. The water-soluble component that dissolves in the dissolution tank 28 that dissolves predetermined components including the sweetener and the dissolution tank 30 that dissolves other predetermined components including citric acid can be appropriately changed. The beverage to be produced may be a so-called sports drink or a soft drink such as carbonated drink, and can be applied to all drinks that are rehydrated by oral intake.

Here, the result of having tested caustic soda to the oral rehydration fluid D manufactured with the formulation shown in Table 2 and testing the pH stability will be described. In the test method, a caustic soda solution as a strong electrolytic alkaline agent was prepared at 1.05 g / 100 ml, the caustic soda solution was added to 1 l of the beverage 10, and the pH was measured. The amount of caustic soda solution added was tested in six amounts ranging from 3.5 ml to 100 ml. The test results are shown in Table 3 below.

  This table shows that this oral rehydration solution D has a very high pH stability. Usually, when 3 mg of a caustic soda solution is added to 1 l (liter) of water, the pH is 10.0, when 100 mg is added, the pH is 11.5, and when 400 mg is added, the pH is 12.1. In contrast, this oral rehydration solution D is pH 3.20 to pH 4.00 when caustic soda solution is added to 3.5 ml to 100 ml, and pH 4.00 even when 105 mg of caustic soda is added, without fluctuation. It was found to be stable and acidic and to have high pH stability. Since the pH is stable at 4.0 or less, it can be sterilized under mild heating conditions as stipulated by the Food Sanitation Law.

DESCRIPTION OF SYMBOLS 10 Oral rehydration apparatus 12 Well 14 5 micrometer filter 16 Activated carbon filter 17, 19, 21 2 micrometer filter 18 Storage tank 20 pH adjuster 22 Electrolyzer 24 Alkali tank 26 Acid tank 27 Citric acid tank 28 Dissolution tank 30 Dissolution tank 32 Product tank 34 Bottle filling machine A, B Aqueous solution C pH adjusted water D Oral rehydration solution

Claims (2)

  Salt and glucose, and citric acid and trisodium citrate, which are drinkable components, are dissolved in electrolyzed acidic water, do not contain phosphorus, and have an osmotic pressure lower than the plasma osmotic pressure of the human body of 310 mOsm / l and a pH of 3. An oral rehydration solution-filled PET bottle, which is filled with an oral rehydration solution adjusted to 5 to 3.2 in a heated state and sealed.   The plastic bottle with an oral rehydration solution according to claim 1, wherein the acidic water is obtained by electrolyzing groundwater.

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