KR20110007902A - Method for preparing salt using yellow soil - Google Patents

Abstract

PURPOSE: A producing method of salt without harmful components is provided to reduce the salty taste of the salt, and to increase the alkaline property and the mineral content. CONSTITUTION: A producing method of salt without harmful components comprises the following steps: molding a container with a mixture formed with yellow soil and clay, and drying(S1); mixing yellow soil powder with a solution containing effective microorganisms, to make a coating solution(S2); spreading the coating solution inside the container, and drying(S3); filing the container with natural salt(S4); and firing the container(S5).

Description

Method for preparing salt using yellow soil {Method for Preparing Salt Using Yellow Soil}

The present invention provides a method for preparing salt using loess.

Salt is an indispensable ingredient in human life. It is based on sodium chloride. Salt is present in body fluids. In the blood of healthy humans, about 0.9% of salt is responsible for releasing waste products and promoting metabolism in cells. It also keeps body fluid alkaline and keeps acid and alkali parallel.

Generally, salt is 70 ~ 80% of rock salt and the rest is natural salt. It contains more than a dozen minerals such as calcium, potassium, magnesium, and food salt is recommended to use natural salt. In order to remove impurities in the natural salt and add good efficacy to the salt, it is manufactured by various methods such as a method of preparing bamboo salt using bamboo or baking natural salt in an ocher container.

The method for preparing bamboo salt is a technique of baking natural salt nine times at a high temperature of 1000 ° C. or more to add the efficacy of bamboo to salt and completely removing impurities in natural salt. For example, Korean Patent Laid-Open Publication No. 199595-0016574 has a weight ratio of 1: 2 to 1: 5 of bamboo and salt to fill natural salt in undried royal bamboo, which is 3 to 5 years old, After sealing, it is stacked in a firing furnace with 3 to 17 layers, and then calcined salt is prepared by the two-step firing method, and then the calcined salt is crushed and filled with new bamboo, and then repeatedly fired seven times as in the firing method. In the last nine firings, the temperature is raised to 1000 to 1800 ° C to disclose a technique of melting calcined salts.

However, the method of preparing bamboo salt has a problem of baking about 9 times to remove impurities and obtain soft salt.

In addition, the ocher salt manufacturing method, for example, may be prepared by putting natural salt in an ocher container and baking for 12 hours or more. For example, Korean Patent Laid-Open Publication No. 2003-0041291 is filled with natural salt in an ocher container that contains a sufficient amount of elvan and minerals, placed in a large scale seahorse, and then the temperature of the inside of the seaweed is controlled by using a fire oxide and a reduction fire. It discloses a method for producing ocher salt by baking salt through.

However, ocher may emit far infrared rays at high temperature firing, but the ocher vessel has a weak strength to withstand fire at high temperature firing, so that the clay falls or bursts in a high temperature kiln at 800 ° C. Thus, there is a problem that can not be obtained pure and soft pure ocher salt.

In the processing of natural salt, it is intended to provide a method of manufacturing ocher salt which is less salty, has high alkalinity, is rich in minerals, and has less impurities by firing at high temperature while preventing the rupture of the ocher container.

The present invention provides a technique for providing a good salt while preventing the rupture of the ocher container by coating a predetermined coating composition on the inner surface of the ocher container to solve this problem. Ocher salt manufacturing method according to one example,

Shaping and drying the container with a mixture of loess and clay; Mixing a solution containing an ocher powder and a useful microbial group to form a coating composition; Coating the coating composition on an inner surface of the dried container and then drying the coating composition; Filling natural salt into the container; And firing the container on which the natural salt is loaded.

In the material in which the ocher and clay are mixed, the mixing ratio of the ocher and clay may be 1: 3 to 1: 1.

In some cases, a solution containing a group of microorganisms useful for mixing the loess and clay may be added. At this time, the ocher: clay: useful microbial group may be mixed in a ratio of approximately 1: 3: 1 to 3: 3: 2, or 1: 3: 1.5.

The ocher powder: useful microorganism in the coating composition may be mixed in a ratio of 10: 1 to 10: 5, or 10: 3.

The firing is a first heat treatment process for heat treatment to be 150 ~ 550 ℃ at a rate of 30 ~ 50 ℃ / h; And a second heat treatment process of heat treatment to be 200 to 850 ° C. at a rate of 60 to 80 ° C./h.

The present invention also provides ocher salt prepared by the above method.

The ocher salt according to the embodiment of the present invention is substantially free of lead, ferrocyanide ions, sulfate ions, and quadrants. These ocher salts are free of impurities, rich in minerals and may be alkaline.

The method for producing ocher salt according to embodiments of the present invention does not include human harmful substances through high temperature firing using a container manufactured by using a material mixed with ocher and clay and applying a predetermined composition to the inner surface. Since mineral-rich salts can be produced, it is economical and industrially useful.

Advantages and features of the present invention and methods of performing the same will be understood more readily by reference to the following detailed description of the embodiments and the accompanying drawings. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 schematically shows a method for producing ocher salt according to an embodiment of the present invention. Referring to Figure 1 the manufacturing method of the ocher salt according to an embodiment of the present invention includes the following processes.

(S1) forming a container and drying the material from a mixture of clay and clay;

(S2) preparing a coating composition by mixing a solution containing an ocher powder and a useful microbial group;

(S3) process of applying the coating composition to the inner surface of the dried container and then drying;

(S4) the process of filling the natural salt in the container; And

(S5) Process of firing the container on which natural salt is loaded.

In the above, S1 and S2 may be performed simultaneously or S2 may be performed first. According to the method according to the present invention, the problem of low heat resistance of ocher can be solved by preparing a container using a material in which ocher and clay are mixed. Therefore, high temperature baking can be performed easily.

In particular, by coating a predetermined ocher composition on the inner surface of the container can not only increase the amount of far-infrared radiation generated from the loess, but also exhibit the effect of the addition of useful microbial groups.

Thus, the ocher salt prepared by the method according to the present invention is useful in the human body by efficiently alkalizing, free of impurities, and improving the binding rate of minerals.

In the process (S1), the material of the clay and clay is mixed when the container is molded. The loess contains useful components such as catalase, diphenol, oxydiase, syracase, protease, and the like, and generates far-infrared rays at high temperatures, thereby promoting salt alkalinity and improving mineral binding ability. There is this.

However, ocher has low heat resistance, and thus, in the case of a container made of only ocher as in the prior art, there is a problem in that it does not maintain its shape at a high temperature of about 850 ° C. and ruptures. On the other hand, clay has the advantage that the heat resistance and mechanical strength is relatively higher than the yellow soil. The clay may be to include, for example, great wall, silica.

Thus, in the present invention, the material using a mixture of loess and clay, the clay can be improved heat resistance by reinforcing the low heat resistance of the loess. Accordingly, since the sintering is possible at a high temperature, far-infrared rays generated from loess can be effectively applied to the natural salt inside the container.

The mixing ratio of the loess and clay is not particularly limited, but if the content of clay is too high, the effect of the addition of loess may not be sufficiently exhibited. If the content of loess is too high, heat resistance as described above is low. Thus, ocher and clay may be mixed in a mixing ratio of 1: 1 to 1: 3.

In one example, a solution containing a group of microorganisms useful for forming the mixed material of the loess and clay (hereinafter, sometimes referred to as 'EM enzyme solution') may be added.

The effective microorganisms (EM) means a combination of and cultivated dozens of microorganisms beneficial to humans among many microorganisms existing in nature. Examples of such useful microorganisms may include, but are not limited to, solutions containing mainly yeast, lactic acid bacteria, photosynthetic bacteria, and the like.

These useful microbial groups improve the antioxidant power of the fermentation product by the complex coexistence coexistence between the bacteria to prevent the decay of the material and to make the organic material low molecular weight to be easily absorbed. Here, antioxidant refers to inhibiting or eliminating the oxidation activity of active oxygen (O ₂ , H ₂ O ₂ , OH, etc.). In addition, the EM contains a variety of bioactive substances and minerals in addition to the antioxidant action, and has the property that these substances are easily absorbed by the human body. Moreover, as described above, the useful microbial group is synergistic by activating the useful microorganisms present in the loess.

The EM enzyme solution may synergize the enzyme in the loess and the enzyme in the EM enzyme solution by activating useful microorganisms present in the loess. Thus, there is an advantage that can maximize the activity of the yeast producing the mineral component of natural salt, useful enzyme component remaining in the loess, and photosynthetic bacteria, lactic acid bacteria, bioactive substances in EM enzyme solution.

In one example, the solution containing the ocher: clay: useful microbial population (EM enzyme solution) may be mixed in a ratio of 1: 3: 1 to 3: 3: 2. For example, a container may be prepared by mixing about 1 kg of clay: 1 kg of loess: 800 ml of EM enzyme solution. In addition, a container may be prepared by mixing about 1 kg of loess: 3 kg of clay: 1500 ml of EM enzyme solution.

In another aspect, the content of EM enzyme liquid relative to the total content of the ocher and clay may be about 40 to 50% by weight.

The interior of the container is loaded with natural salt, the coating of the predetermined coating composition as in the step (S2) on the inner wall of the container which is a portion of the natural salt.

The coating composition is formed by mixing a solution comprising ocher powder and useful microbial population.

The ocher powder may be obtained by, for example, collecting the ocher at about 30 cm to 1 m below the indicator of the forest in a clean area, and grinding the dried ocher obtained by drying for 4 to 8 hours to have a water content of 10% or less.

In another example, the loess powder may be obtained by adding EM enzyme solution to loess collected at 1 m below the surface of the soil and then filtering it using a 150 mesh swab to make sediment and drying it in a sunny place.

By applying the coating composition in the container, the content of the ocher component may be further increased, thereby increasing the amount of far-infrared rays emitted, and the far-infrared rays may be diffused into the container and applied directly to the natural salt. Therefore, the binding force of the mineral component in natural salt can be promoted and alkalinization can be aimed at.

The total content of ocher in the ocher container coated with the coating composition may be about 30 to about 40 wt% based on the weight of the dry container.

The composition ratio of the ocher powder and useful microorganisms in the coating composition is not particularly limited, but if the content of the useful microorganism group is too small, yeast and lactic acid bacteria do not stably grow and thus do not produce byproducts such as acetic acid and organic acids, and conversely, In many cases, the cost of production rises. Thus, the ocher powder: useful microorganisms may be 10: 1 to 10: 5.

In some cases, Jijosoo may be added when the mixed material of the ocher and clay is formed or when the coating composition is prepared.

 The Jijangsu means the supernatant separated from the precipitate obtained by precipitating an aqueous ocher solution. For example, the jijangsu may include, for example, mixing ocher powder and water in a ratio of about 1: 1 to form an aqueous ocher solution; Stirring the ocher aqueous solution for 1 to 6 hours and then precipitating for 12 to 24 hours; It can be obtained through; separating the precipitate to separate the jijangsu of the upper layer. The obstacle number may be the number of obstacles located at 60 to 80% from the upper layer.

The method of applying the coating composition in the process (S3) is not particularly limited and is possible by various known methods. In addition, the method of filling the natural salt in the container in the process (S4) is also not particularly limited.

Firing in the step (S5) is the first heat treatment step of heat treatment to be 150 ~ 550 ℃ at a rate of 30 ~ 50 ℃ / h; And a second heat treatment process of heat treatment to be 200 to 850 ° C. at a rate of 60 to 80 ° C./h.

The first or second heat treatment may be performed in multiple stages, respectively, and are not particularly limited. In one example, the firing may be performed in three stages of heat treatment for 5 to 6 hours up to 200 ° C., heat treatment for 5 to 6 hours up to 200-550 ° C., and heat treatment for 3 to 4 hours up to 550-800 ° C. .

As such, when fired at a high temperature of about 800 ° C., the amount of far-infrared rays and anions emitted from the container may be maximized. In addition, impurities in natural salt may evaporate and disappear. Therefore, the alkalinity of natural salt and the content rate of mineral can be raised, and an impurity can be removed almost completely.

On the other hand, when firing at a high temperature of more than 850 ℃ is not easy to separate from the container because the salt is burned or agglomerated into agglomerate, and also has to go through a separate grinding process for grinding the separated salt aggregate, the process is complicated There is a problem.

The present invention also provides ocher salt prepared by the above method. The ocher salt according to the present invention can be fired at a high temperature, so that far infrared rays emitted from the ocher are effectively applied to natural salts, thereby purifying the bitter and salty salts during salt recrystallization, and changing them into alkaline salts from which impurities are removed. Can be. In addition, by including the useful microbial group, minerals in natural salt, enzymes in loess, and useful substances in the useful microbial group can be activated through synergy. Thus, less salty and soft than normal salt can preserve the original taste of food.

In one example, the ocher salt may not include lead, ferrocyanide ions, sulfate ions, and quadrants.

Example 1

1 kg of clay (Yeju-san, Gyeonggi-do) and 1 kg of yellow soil (Gimhae-san, Gyeongnam) were mixed with 1500 ml of EM enzyme solution (Ever Miracle Co., Samcheon-dong, Wansan-gu, Jeonju-si), and then dried at room temperature. Meanwhile, a coating composition was prepared by mixing 100 g of ocher powder and 30 ml of EM enzyme solution (Ever Miracle Co., Samcheon-dong, Samsan-dong, Jeonju-si). The coating composition was applied to the inner surface of the dried container.

After filling the dried container with natural salt, the container is mounted in a kiln and fired. Firing is gradually heated the temperature of the kiln to 200 ℃ for about 5 hours, then gradually heated to 550 ℃ for about 5 hours, and finally to 800 ℃ for about 4 hours.

Experimental Example 1

In order to analyze the components of the ocher salt prepared according to Example 1, the test was requested to the Korea Food Research Institute, and the results are shown in Table 1 below.

TABLE 1

Test Items Reference value Results Judgment Sodium Chloride (%) 88.0 98.1 fitness Total Chlorine (%) 50.0 61.2 fitness moisture(%) 4.0 or less 0.5 fitness Insoluble content (%) 3.0 or less 1.7 fitness Sulfate ion (%) 1.5 or less 0.0 fitness Quarter (%) 0.1 or less 0.0 fitness Lead (mg / kg) 2.0 or less Not detected fitness Cadmium (mg / kg) 0.5 or less 0.364 fitness Ferrocyanide (g / kg) 0.010 or less Not detected fitness

Referring to Table 1, it can be confirmed that the ocher salt prepared according to the embodiment of the present invention is pure salt without impurities such as lead, ferrocyanide, sulfate, and quadrant, which is suitable for the determination condition as a food. .

Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

1 is a schematic diagram of a manufacturing process of ocher salt according to an embodiment of the present invention.

Claims (8)

Shaping and drying the container with a mixture of loess and clay; Preparing a coating composition by mixing a solution containing an ocher powder and a useful microbial group; Applying the coating composition to the inner surface of the dried container and then drying the coating composition; Filling natural salt into the container; And Process for calcining the container filled with natural salt; Ocher salt manufacturing method comprising a. The method of claim 1, wherein the ocher and clay in the mixed material of the loess and clay is 1: 3 to 1: 1 manufacturing method of ocher salt. The method for producing ocher salt according to claim 1, wherein a solution containing a useful microbial group is added to the mixed material of ocher and clay. The method of claim 3, wherein the ocher: clay: solution containing the useful microbial population is mixed in a ratio of 1: 3: 1 to 3: 3: 2. The method according to claim 1, wherein the solution comprising the ocher powder: useful microorganism group in the coating composition is 10: 1 to 10: 5. The method of claim 1, wherein the firing comprises: a first heat treatment process of heat treatment to achieve 150 to 550 ° C. at a rate of 30 to 50 ° C./h; And a second heat treatment process of heat treatment to be 200 to 850 ° C. at a rate of 60 to 80 ° C./h. A loess salt prepared by the method according to any one of claims 1 to 6. 8. The ocher salt of claim 7, wherein the ocher salt does not include lead, ferrocyanide ions, sulfate ions, and quadrants.

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