Manufacturing method of brine liquid

Abstract

To address such a problem that antifreeze not freezing even at low temperatures is essential for rapid freezing, and to provide a brine liquid recognized as a food additive, having high safety and not freezing even at low temperatures.SOLUTION: The conventionally-used brine liquid consisting primarily of an ethyl alcohol with a concentration of less than 60% by weight starts to freeze at around -25 to -30°C. However, when rapid freezing is performed at further low temperatures, the ethyl alcohol with the concentration of 60% by weight or more is required. Brine liquid with the ethyl alcohol concentration of 60% by weight or more is considered a small quantity of hazardous substance under the Fire Service Act and is subject to storage restrictions. Although the present brine liquid is a composition with the concentration of 60% by weight or more, by adding propylene glycol thereto, the composition does not fall under the category of small quantities of hazardous substances under the Fire Service Act and is classified as a class 2 petroleum, which eases storage restrictions. In addition, when the brine liquid is used, it does not freeze even at around -55°C. which increases its usefulness as the brine liquid for low temperatures.

Description

[Technical field]

[0001] The present invention relates to a brine solution, and more particularly to a brine solution useful for rapid brine freezing of foods. Summary of the Invention [Problem to be solved by the invention]

[0002] In general, the brine must satisfy the following conditions: it must be chemically stable and not deteriorate, inert, non-toxic, non-irritating, non-flammable, non-explosive, not freeze at low temperatures, and have high thermal conductivity. One type of brine that has been used traditionally is ethyl alcohol with a concentration of 60% by weight or less. These ethyl alcohol-based brines are safe, corrosion-resistant, and chemically stable, and are also colorless, odorless, and non-toxic, making them widely used.

[0003] However, brine with an ethyl alcohol concentration of 60% or less has the disadvantages of having a high freezing point, poor thermal conductivity, and freezing at a relatively high temperature even when below freezing.

[0004] Therefore, although it depends on the concentration of ethyl alcohol, the conventional brine solution is not suitable for use at low temperatures. In this context, there is a demand for a brine solution that does not freeze even at low temperatures and can maintain a low viscosity.

[0005] The present invention has been made to solve these problems, and an object of the present invention is to provide a brine solution which is highly safe, does not freeze even at low temperatures, maintains a low viscosity, and has good thermal conductivity. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention is characterized in that a brine solution obtained by adding propylene glycol to a composition having a brine concentration of 60% or more, the main component of which is ethyl alcohol, is used as a brine solution for food.

[0007] The present invention focuses on the fact that ethyl alcohol has excellent thermal conductivity and is suitable as a brine solution, and aims to eliminate the problem of preventing freezing at ultra-low temperatures by adding propylene glycol while maintaining its suitability as a brine solution. According to claim 1 of the present invention, by using a brine solution containing ethyl alcohol and propylene glycol, which are approved as food additives, as main components for food use, it is possible to form a brine solution that increases the flash point while maintaining the suitability of ethyl alcohol as a brine solution, is difficult to evaporate, eliminates its loss, and does not freeze even at low temperatures.

[0008] Furthermore, according to claim 2 of the present invention, a brine solution containing 60% or more ethyl alcohol and propylene glycol in a ratio of 8:2 to 7:3 was rapidly frozen in a freezer capable of a freezing temperature of -60 degrees C. As a result, a brine solution was obtained that did not freeze even at low temperatures and also satisfied safety requirements such as a flash point.

[0009] However, according to claim 3 of the present invention, by adding ethylene glycol, the product is classified as Class 2 petroleum as stipulated in the Fire Service Act, and storage restrictions are relaxed, making it easier for general companies to handle the product without the need to employ qualified personnel, which is a major advantage. Effect of the Invention

[0010] As described above, the brine solution of the present invention, which contains 60% or more by weight of ethyl alcohol at 70-80% and 20-30% of propylene glycol, has excellent thermal properties such as inherent thermal conductivity, does not freeze even at low temperatures, and also satisfies safety requirements such as flash point. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] A preferred embodiment of the brine solution according to the present invention will be described below. The brine solution according to the present invention has a composition suitable for food use. The brine solution for food use is prepared by adding propylene glycol, which is a substance with almost the same physical properties as ethyl alcohol, to ethyl alcohol to maintain the inherent suitability of ethyl alcohol as a brine solution, and by adjusting the amount of ethyl alcohol composition with 60% by weight or more and propylene glycol to an appropriate blending ratio, the brine solution is prevented from freezing at ultra-low temperatures, loss due to evaporation is eliminated, and the flash point is raised to prevent ignition, and other safety measures are taken.

[0012] Therefore, a food-grade brine solution containing methyl alcohol at a concentration of 60% by weight or more and propylene glycol as components can constitute an ideal brine solution for rapid freezing of foods and the like at low temperatures.

[0013] The food-use brine solution of the present invention has an ethyl alcohol composition concentration of 60% by weight or more, and other compositions are composed of propylene glycol, purified water, and other additives. By adding propylene glycol to a conventional brine solution of 60% by weight or more, it is classified as a second petroleum under the Fire Service Act, and restrictions on handling of hazardous materials under the Fire Service Act are relaxed. On the other hand, conventional brine solutions composed of ethyl alcohol concentration of 60% by weight and purified water without the addition of propylene glycol have restrictions on handling under the Fire Service Act and require safety measures for storage and management, which leads to increased costs.

[0014] The brine solution of the present invention is composed of ethyl alcohol at a composition concentration of 60% by weight or more, purified water, and ethylene glycol. The lower the alcohol concentration, the less likely it is to cause problems such as evaporation or ignition, but it becomes difficult to obtain the benefits of alcohol. Therefore, by setting the ethyl alcohol concentration at 60% by weight or more and adjusting the ratio of ethyl alcohol to ethylene glycol, it is possible to maintain the original thermal properties, particularly the property of preventing freezing at ultra-low temperatures.

[0015] Therefore, by using the brine of the present invention in a quick freezing system, storage problems can be solved and a brine suitable for the purpose can be obtained.

[0016] Thus, the brine of the present invention has good thermal properties, maintains a low viscosity even at low temperatures, and is easy to maintain because of the relaxed restrictions under the Fire Service Act. The brine of the present invention, which is mainly composed of ethyl alcohol and propylene glycol, is recognized as a food additive and can be used safely to freeze food products such as seafood, meat, and agricultural products. EXAMPLES

[0017] The brine solution of the present invention was prototyped in a refrigerator with a refrigeration capacity of -60 degrees C. Its usefulness was verified at low temperatures by changing the composition ratio of ethyl alcohol with a concentration of 60% by weight or more and propylene glycol. The usefulness as a brine solution is shown below.

[0018] If the propylene glycol composition ratio is 10:6 or more, the viscosity of the brine becomes extremely high, making it unsuitable as a brine for quick freezing foods, etc. On the other hand, when the ratio of a composition containing 60% by weight or more of ethyl alcohol to propylene glycol is 8:2 to 7:3, the viscosity is appropriate and an ideal brine solution can be obtained without freezing even at low temperatures.

Claims

1. A brine solution containing an ethyl alcohol concentration of 60% by weight or more and a brine solution containing propylene glycol, the brine solution having an ethyl alcohol concentration of 60% or more.

2. 2. The brine solution of claim 1, wherein the ratio of ethyl alcohol to propylene glycol is from 8:2 to 7:

3.

3. 3. The brine solution of claim 1 or 2, characterized in that it is a second petroleum product.