TW201802040A - Industrial method of preparing alkaline water with sea mineral - Google Patents

Abstract

An industrial method of preparing alkaline water with sea mineral is provided. The method includes: mixing mineral water and reverse osmosis water to obtain a mixture with about 20 [mu]s/cm to about 80 [mu]s/cm conductivity; electrolyzing the mixture to obtain alkaline water; and adding concentrated deep ocean water into the alkaline water, so as to obtain the alkaline deep ocean water without bromate.

Description

Industrial production method for alkaline beverage water containing marine minerals

The invention relates to an industrial production method of an alkaline beverage water containing marine minerals, in particular to an industrial production method of an alkaline beverage water containing no bromate containing marine minerals.

Bromate is a salt formed from bromic acid and contains a triangular pyramidal bromate ion, BrO ³⁻ , which is classified as a potential carcinogen of grade 2b by the International Agency for Research on Cancer. Internationally, the World Health Organization and the US Environmental Protection Agency stipulate that the maximum allowable concentration of bromate in drinking water is 10 μg/L.

The amount of bromate in water is related to the amount of bromide in the water source and the amount of ozone added. If the bromide content in the water source is high or the amount of ozone added is high, it is likely that the final bromate index of the product will exceed the standard. Therefore, the food and beverage industry often uses reverse osmosis instead of adding ozone to obtain clean production water.

Alkaline water can be used for drinking, health care, cleaning and cutting wafer surfaces. Some scholars in Taiwan have pointed out that drinking alkaline water can treat symptoms such as gastrointestinal discomfort caused by hyperacidity in the body. Among them, the formation of alkaline water is to change the pH value and the oxidation-reduction potential of the water by electrolysis, and decompose to generate oxygen and hydrogen. After hydrogen and oxygen are generated on the surface of the cathode and anode, the water around the electrode tends to be alkaline and acidic, and the oxidation-reduction potential also changes. Inserting a porous semipermeable membrane between the two poles or an anion-cation semipermeable membrane capable of selectively passing an anion and a cation, that is, an alkaline water having a high concentration of hydroxide ions and a reducing power can be collected from the cathode, and the anode collects a high concentration of hydrogen ions. And acidic water with oxidizing power.

However, the low conductivity of the production water obtained by reverse osmosis is not conducive to electrolytic production of alkaline water. At the same time, the solution of marine minerals contains 12 kinds of chlorine, sodium, magnesium, sulfur, calcium, potassium, bromine, carbon, antimony, boron, antimony and fluorine. They account for about 99.9% of all water elements which form cations five ^{ten Na, K +, Ca 2+, Mg} 2+ and Sr ^2+, and six kinds of anions ^{C1 -, S04 2-, Br -} , HCO 3 ^- 11 kinds of ionic components such as Co ₃ ^2- and F ^-2 . Therefore, in order to increase the minerals beneficial to human health in the water, and to increase the conductivity of the production water to facilitate the production of alkaline water, the solution containing marine minerals is conventionally added to the reverse osmosis water to supplement the electrolyte required for electrolysis. It is electrolyzed to produce alkaline beverage water containing marine minerals.

However, it has been found that the production of bromate is still produced when the above-mentioned method is used to produce alkaline mineral water containing a stable quality of marine minerals.

In view of the above-mentioned problems of the prior art, it is an object of the present invention to provide an industrial process for producing alkaline beverage water containing no bromate containing marine minerals.

According to one aspect of the present invention, an industrial process for producing an alkaline beverage water containing marine minerals is provided, which comprises the steps of mixing mineral water with reverse osmosis water to obtain a conductivity of from about 20 μs/cm to about 80 μs/cm. a mixture; electrolyzing the mixture to obtain alkaline water; and adding a solution containing marine minerals to the obtained alkaline water to obtain an alkaline beverage water containing no bromate containing marine minerals.

Preferably, the conductivity of the mixture may range from about 40 [mu]s/cm to about 60 [mu]s/cm.

Preferably, the mineral water and the reverse osmosis water may be mixed at a ratio of 1:3.25.

Preferably, the method further comprises adding acidic water generated by the electrolysis step to the alkaline water to adjust the pH value of the alkaline beverage water containing the marine mineral.

Preferably, the alkaline beverage water containing marine minerals may have a pH between about 9.0 and about 9.6.

Preferably, the alkaline beverage water containing marine minerals may have a conductivity of from about 80 μs/cm to about 110 μs/cm.

According to the above, the industrial production method of the marine mineral-containing alkaline beverage water according to the present invention may have one or more of the following advantages:

(1) The resulting alkaline beverage water containing marine minerals does not contain detectable bromate.

(2) The pH of the generated alkaline beverage water containing marine minerals is stable.

(3) Maintain the production rate of alkaline beverage water containing marine minerals.

In order to make the above-mentioned objects, technical features, and gains after actual implementation more apparent, a more detailed description will be provided below with reference to the corresponding drawings in the preferred embodiments.

As used herein, the term "mineral water" means water which may contain minerals such as calcium, magnesium, sodium, potassium, and the like, and may have a conductivity of from about 30 to about 300 [mu]s/cm.

As used herein, the term "reverse osmosis water" refers to water that has been subjected to a reverse osmosis process, having a TDS of about 3 ppm and a conductivity of from about 2 to about 10 [mu]s/cm.

As used herein, the phrase "solution containing marine minerals" means 1000 to 1500 mg of calcium, 1400 to 2100 mg of magnesium, 2000 to 4000 mg of sodium, 1400 to 2100 mg of potassium, sulfate of <6.5 wt.%, and specific gravity per 100 g of solution. 1.23~1.25 marine mineral solution

Please refer to FIG. 1 , which is a flow chart of an industrial production method of alkaline mineral water containing marine minerals according to an embodiment of the present invention.

As shown in Fig. 1, the industrial production method of the marine mineral-containing alkaline beverage water of the present invention comprises: a mixing step of mixing reverse osmosis water with mineral water (step S101); an electrolysis step of electrolysis mixture (step S103); An addition step of adding a solution containing marine minerals (step S105).

In step S101, the reverse osmosis water is mixed with the mineral water, wherein the reverse osmosis water is obtained by reverse osmosis using a semipermeable membrane. Examples of semipermeable membrane materials used include, but are not limited to, cellulosic membranes, aromatic polyamines, polyimines, and polybenzazoles; examples of semipermeable membrane structural shapes used include, but are not limited to, helical , hollow fiber type and tubular type. The semipermeable membrane pore size and the semipermeable membrane thickness are also not particularly limited as long as the semipermeable membrane can be used to obtain reverse osmosis water as defined herein.

In this step, the mineral water and the reverse osmosis water are mixed at a volume ratio of 1:3.25 to supplement the electrolyte required for conduction in the reverse osmosis water to facilitate the subsequent electrolysis step. In order to optimize the alkaline water taste of the output, the conductivity of the mixture obtained by mixing the reverse osmosis water and the mineral water in this step may be in the range of 20 μs/cm to about 80 μs/cm, for example, may be about 20 μs/cm, about 40 μs/cm, about 60 μs/cm, about 80 μs/cm. Preferably, it may be from about 30 μs/cm to about 50 μs/cm, and further preferably from about 40 μs/cm to about 52 μs/cm.

In step S103, the mixture obtained in step S101 is electrolyzed with an electrolysis current of about 1.0 A to about 2.0 A to obtain alkaline water and acidic water, respectively. The semipermeable membrane in this step may be a porous semipermeable membrane capable of restricting water transfer or an anion-cation semipermeable membrane capable of selectively passing an anion and a cation, but the invention is not limited thereto.

In step S105, the alkaline water obtained in step S103 is collected, and a solution containing marine minerals is added. In this step, in order to maintain good mouthfeel and stable quality, the conductivity of the alkaline mineral water containing marine minerals can be adjusted to be between about 80 μs/cm and about 110 μs/cm by the addition of a solution containing marine minerals. For example, it may be from about 82 μs/cm to about 102 μs/cm. Meanwhile, in order to obtain a drinkable marine mineral-containing alkaline beverage water (pH value less than 10), the acid water produced in the step S103 may be optionally added to obtain the obtained alkaline mineral water containing marine minerals. The range of pH values is adjusted to between about 9.0 and about 9.6, preferably between about 9.2 and about 9.5, although the invention is not limited thereto.

The yield of the marine mineral-containing alkaline beverage water obtained by the above-described industrial production method comprising the marine mineral-containing alkaline beverage water of steps S101 to S105 may be greater than 70%. And after sterilization and precision filtration process, it can be packaged drinking water. The sterilization process used therein may include, but is not limited to, a UV sterilization, a high temperature sterilization, and a high pressure sterilization process.

Fig. 2 is a flow chart showing the industrial implementation of an industrial production method of alkaline mineral water containing marine minerals according to an embodiment of the present invention. According to the industrial production method of the marine mineral-containing alkaline beverage water according to the embodiment, the reverse osmosis water and the mineral water are first mixed, and then the conductivity of the mixture of the reverse osmosis water and the mineral water is adjusted to 20 μs in the mixing tank. After the range of /cm to about 80 μs/cm, the mixture is electrolyzed by an electrolysis device to obtain acidic water and alkaline water. Then, the acidic beverage, the alkaline water and the solution containing the marine mineral are mixed to prepare an alkaline beverage water containing a marine mineral having a conductivity of about 80 μs/cm to about 110 μs/cm and a pH value of less than 10. . The obtained alkaline beverage water containing marine minerals is further subjected to UV sterilization and precision filtration to obtain a finished product.

The embodiments of the present invention are described in detail below with reference to the examples and the accompanying drawings.

The reverse osmosis water used in the comparative example and the example is the water obtained by using the reverse osmosis process in the mineral water of Ruifang area, and is obtained by the reverse osmosis process, hereinafter referred to as RO water; the mineral water used is the mineral water of Ruifang area. The solution containing marine minerals is Japan's indoor marine deep water concentrate; the electrolyzer used is Hitachi HI-TAQ5; and the conductivity and pH value described therein are HACH portable digital conductivity The HQ14d and METTLER pH meter S220 (InLab Science electrode rod) were measured.

Preparation of Examples 1-4

5.5 kg of RO water was mixed with 0.5 kg of mineral water to obtain a mixture 1 having a conductivity of 20 μs/cm. 4.9 kg of RO water was mixed with 1.09 kg of mineral water to obtain a mixture 2 having a conductivity of 40 μs/cm. 4.35 kg of RO water was mixed with 1.65 kg of mineral water to obtain a mixture 3 having a conductivity of 60 μs/cm. 3.8 kg of RO water was mixed with 2.2 kg of mineral water to obtain a mixture 4 having a conductivity of 80 μs/cm.

The mixture 1-4 was subjected to an electrolysis process using an electrolysis current of 1.0 to 2.0 A to prepare an alkaline water 1-4. The preparation of Examples 1-4 was carried out by adding 0.006 g of a solution containing marine minerals in alkaline water 1-4. The characteristics of pH 1-5, bromate and bromide of Examples 1-4 are shown in Table 1 below. Table 1

Comparative example

3.8 kg of RO water, 2.294 kg of mineral water and 0.006 g of a solution containing marine minerals were mixed to obtain a comparative mixture 1 having a conductivity of 80 μs/cm. 4.35 kg of RO water, 1.644 kg of mineral water and 0.006 g of a solution containing marine minerals were mixed to obtain a comparative mixture 2 having a conductivity of 60 μs/cm.

Comparative Examples 1 and 2 were respectively subjected to electrolytic processes of 1.0 to 2.0 A to obtain Comparative Examples 1 and 2, and the characteristics of pH, bromate and bromide of the obtained alkaline water are shown in Table 2 below. Table 2

By comparing Tables 1 and 2 above, we can see that the step of adding a solution containing marine minerals is placed in comparison with the comparative example in which the step of adding a solution containing marine minerals is conventionally placed before the electrolysis process. After the electrolysis process, the alkaline beverage water obtained has a lower bromide ion and an almost undetectable amount of bromate content, effectively reducing the bromate salt of the potential carcinogen classified as Class 2b by the International Agency for Research on Cancer.

The alkaline beverage water obtained by the method of the present invention is subjected to UV sterilization and precision filtration to prepare a packaged drinking water 1. The packaged drinking water 1 was tested for pH stability under the following conditions.

The packaged drinking water 1 of the present invention and the alkaline water of the brand are directly exposed to the air for 72 hours, and are respectively at 0 hours, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 24 hours and The pH values of the two were measured at 72 hours, and the data obtained are shown in Table 3 below. table 3

The packaged drinking water 1 of the present invention and the alkaline water of the brand are opened at intervals to open the cap and the pH value is detected by 70 ml of water, and then the original bottle cap is turned into a closed closed loop, and the two are compared below. The pH values measured at time intervals: 0 hours, 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 24 hours, and 72 hours, and the obtained data are shown in Table 4 below. Table 4

As can be seen from Tables 3 and 4 above, the packaged drinking water 1 provided in accordance with the present invention can have a relatively stable pH compared to other brands of alkaline water. Among them, by utilizing the open circulation method which is close to the user's usual drinking water habit, we can see from Table 4 that the packaged drinking water 1 of the present invention can maintain a pH close to 9 within 72 hours after the user opens the seal. Its acid-base stability is much higher than his brand alkaline water.

The unopened packaged drinking water 1 was placed at room temperature (25 ° C), 37 ° C and 55 ° C for two weeks, and the pH value of the packaged drinking water 1 was measured at 0 weeks, 1 week and 2 weeks, respectively, and carried in HACH. The type digital turbidimeter 2100P detects whether it produces turbidity or other visual changes visible to the naked eye, and the results are shown in Table 5 below. table 5

The unopened packaged drinking water 1 is placed in three places in the outdoor car (three different positions in the table, A, B and C). The space is three weeks, and is 0 days, 2 days, 4 days respectively. The pH of the packaged drinking water 1 was tested at 7 days, 9 days, 11 days, 17 days, and 21 days, and the results are shown in Table 6 below. The daily indoor space temperature is up to 70.6 ° C, the lowest is 21.1 ° C; the relative humidity is up to 82.9%, the lowest is 9.9%. Table 6

Store the unopened packaged drinking water 1 and other alkaline water at 25 ° C, RH 75 ~ 85%, and test the pH, conductivity and hardness of the packaged drinking water 1 every other month. The results are shown in the following table. 7. Table 7

According to Tables 5 to 7 above, it can be seen that the packaged drinking water of the present invention has good storage stability regardless of the storage conditions of the packaged drinking water of the present invention. In particular, by Table 7, we can see that the packaged drinking water of the present invention has only a 2.7% decrease in the pH of the packaged drinking water of the present invention compared with other alkaline waters, which is reduced compared with other alkaline waters. The pH value of 27% ((9.52-9.26) / (9.05-8.09) * 100%) decreased.

From the results shown in Tables 1 to 7 above, it can be found that the industrial production method of the alkaline beverage water containing marine minerals according to the embodiment of the present invention maintains the output rate of the alkaline beverage water containing marine minerals while It can produce alkaline beverage water containing marine minerals without detectable bromate, stable pH value, high storage stability and low cost.

While the invention has been particularly shown and described with reference to the exemplary embodiments of the embodiments of the invention The spirit and scope defined by the scope of patents and their equivalent scope.

S101～S105‧‧‧Steps

The above and other features and advantages of the present invention will become more apparent from the detailed description of the exemplary embodiments thereof

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart showing the steps of an industrial process for producing an alkaline beverage water containing marine minerals according to an embodiment of the present invention.

Fig. 2 is a flow chart showing the industrial implementation of an industrial production method of alkaline mineral water containing marine minerals according to an embodiment of the present invention.

S101~S105‧‧‧Steps

Claims (6)

An industrial process for producing alkaline beverage water containing marine minerals, comprising the steps of: mixing a mineral water with a reverse osmosis water to obtain a mixture, wherein the mixture has a conductivity of from about 20 μs/cm to about 80 μs/cm. The mixture is electrolyzed to obtain an alkaline water; and a solution containing marine minerals is added to the alkaline water to obtain the marine mineral-containing alkaline beverage water containing no bromate. The method of claim 1, wherein the mixture has a conductivity of from about 30 μs/cm to about 50 μs/cm. The method of claim 1, wherein the mineral water and the reverse osmosis water are mixed in a volume ratio of 1:3.25 to 5.3. The method of claim 1, further comprising adding one of the acidic waters to the alkaline water. The method of claim 4, wherein the marine mineral-containing alkaline beverage water has a pH of between about 9.0 and about 9.6. The method of any one of claims 1 to 5, wherein the marine mineral-containing alkaline beverage water has a conductivity of from about 80 μs/cm to about 110 μs/cm.