HU192552B - Method for stabilizing mineral, medicinal and refreshing waters - Google Patents

Abstract

Field of the Invention The present invention relates to mineral waters, mineral waters, soft drinks, and the like. to stabilize the environment. According to the present invention, the amount of natural mineral water, mineral water, soft drink water, calcium content, and the amount of calcium remaining after deduction of the calcium content of water soluble calcium carbonate up to 30 ° C, is equivalent to an equivalent amount of calcium. acid, preferably tartaric acid, citric acid, acetic acid, solid, liquid, or any solution at any concentration prepared therefrom, and then bottled. -1-

Description

FIELD OF THE INVENTION The present invention relates to a process for the production of natural mineral waters, medicinal mineral waters, refreshing waters, etc. (hereinafter referred to as "waters") by mixing different concentrations of organic acids harmless to human health or a solution of them in concentrations to prevent harmful precipitations, resulting in a pleasant beverage which can be stored, transported for several months and retains its original taste.

The waters stabilized according to the invention serve to satisfy all or part of the biological water requirement.

Mineral water is water which is extracted or obtained from underground aquifers, naturally and / or protected, and is naturally pure, microbiologically and chemically harmless to human health, with an annual dissolved mineral content of 1000 mg / liter or more.

The mineral water, like the previous one, is also pure and harmless water, which, irrespective of its size, has a dissolved mineral content which can be curative due to its other biologically active ingredients.

Refreshing water, as described above, is also pure and harmless water, which, depending on its geological origin, has a generally different composition and is particularly refreshing, but does not otherwise qualify as mineral or medicinal water.

The water can be used directly at the site or bottled at the site and then transported to the consumer.

Water that has been transported from a water tank in a tanker or otherwise shall not be used for bottling.

The waters can be filled in glass bottles, metal cans or bottles of textile material. A crown plug, screw lock or other airtight closure is suitable for sealing.

According to the organoleptic requirements for the waters, the waters must be "clean, transparent, free of suspended solids, deposits, and sediment.

Regardless of the nature of the aquifer (groundwater, karstic water, protected aquifer) different natural constituents - cations, anions - occur in the waters, depending on the natural conditions.

The cations may be various metal ions such as iron, manganese, copper, zinc, calcium, etc., and the anions may be sulfate, fluoride, iodide, carbonate, bicarbonate, and the like. Their value can be expressed in mg / l. Cations and anions form different compounds with each other and are generally present in water in dissolved form.

An exception is calcium carbonate, which is precipitated from water due to its low solubility. The precipitate formed in the bottle forms a sediment which does not meet the organoleptic requirements. Unfortunately, the precipitation does not occur before bottling, because then it could be filtered out of the water, but during storage. This separation adversely affects sellability and consumption.

There are several ways of trying to prevent it from falling apart. One possible solution is the physico-chemical route.

As is known, the carbon dioxide in the water in the following equilibrium process keeps the carbonate in the form of a highly water soluble (166 g / l solubility at 20 ° C) bicarbonate.

Ca (IICO ₃ ) ₂ -CaCO ₃ + CO ₂ - H ₂ O

So if you increase the concentration of carbon dioxide in water (which is 0.05-1.0 g / l in natural waters and can be raised to 7.0 g / l according to MSZ 11399), it is. balance can be shifted in the direction of the lower arrow. However, this path 5 can only be secured by the use of sealed glass bottles. A further requirement is that the carbon-enriched article can only be filled into glass bottles with a pressure resistance of 1.5 MPa (about 15 atm). This solution is not advantageous because of the difficulty of transporting glass bottles over long distances, and the difficulty of collecting and returning empty bottles.

Another solution is to reduce the salt content by exchanging the alkaline earth metal ion, which in turn enriches the system with alkali metal ions or changes the hydrogen ion concentration (pH). This solution changes the nature of the waters and results in drinking water.

It is an object of the present invention to provide a solution that preserves the original natural character of the waters, which can be well stored and transported.

Our invention has led to the discovery that when substances are added to waters that produce compounds that are water-soluble in calcium or that are sufficiently soluble in water, they are naturally harmless to hu25 manic health and do not alter the taste of the waters. storable, transportable waters are obtained.

According to the present invention, the substances which meet the requirements described above are admixed with water in an amount that binds the calcium ions in the water, or a portion thereof, in such a way that no calcium carbonate precipitation occurs.

The amount of calcium carbonate that is present in solution in the solution at the required storage temperature, usually between 1 ° C and 20 ° C, does not interfere with subsequent storage.

Suitable water stabilizing agents are generally organic acids such as tartaric acid, citric acid, acetic acid and the like. and other organic substances such as ascorbic acid (polyhydric alcohol).

The stabilization of the waters is carried out by mixing the calcium content of the water or the calcium content remaining after deduction of the calcium content of water-soluble calcium carbonate up to 30 ° C in equimolar amounts of the 45 substances mentioned above or a solution thereof, and then bottling them.

The invention is further illustrated by examples.

Example 7

Stabilization of mineral water with citric acid.

286 mg Ca, Qiter (7.15 mmol / L) and 1260 mg HCOj / liter (20.65 mmol / liter) composition of mineral water in the carbon 56 position is removed, CaCO ₃ precipitate. For stabilization, 4.77 mmol, i.e. 915 mg of citric acid per liter of mineral water, in an aqueous solution of 100 mg / ml is added to the calcium content.

9.15 ml. The mineral water is filled into a plastic container and sealed with a plastic cap. No precipitation was observed after 3 months storage, even though the calculated calcium citrate concentration (1.19 g / l) is higher than the water soluble concentration of calcium citrate (0.85 g / l). The titratable free carbonic acid concentration also does not change during storage.

192,552

Example 2

Stabilization of mineral water with tartaric acid.

To stabilize the mineral water of the composition described in Example 1, tartaric acid is used. The tartaric acid, 4.77 mmol, i.e. 100 mg of tartaric acid, calculated on the calcium content, is added to 1 liter of mineral water, preferably in the form of an aqueous solution of 100 mg / ml. When stored under the conditions described in Example 1, no precipitation was observed. 10

The invention has the following advantages:

Water is stabilized by a simple procedure. The water thus stabilized can be placed in disposable plastic bottles without the need for airtight closure;

The water can be transported with great safety because it is easier to transport the plastic bottles. During the transportation and storage there are no precipitations, so the waters that meet the organoleptic requirements can reach the distant consumers.

Example 3

Stabilization of mineral water with glycerol.

178 mg Ca ⁴⁺ / liter (4.45 mmol / liter) and 1310 mg

HCOj / L (21.47 mmol / L) mineral water was stabilized by the addition of glycerol. An equimolar amount of glycerol based on the calcium content, 4.45 mmol, requires 410 mg for 1 liter of mineral water. The addition is conveniently carried out in a 10% aqueous solution. The mineral water is filled into a plastic container and hereafter referred to as

Example 1 was followed.

Claims (2)

Claims CLAIMS 1. A process for stabilizing mineral waters, medicinal mineral waters, and refreshing waters, characterized in that the calcium content of the extracted natural mineral water, mineral water, refreshing water is not more than 30 ° C of water per soluble calcium carbonate, a corresponding amount of an equimolar amount of an organic acid, preferably tartaric acid, citric acid, acetic acid or polyhydric alcohol, preferably glycerol or a solution thereof, is added and then bottled. 2. The process of claim 1, wherein the mineral water is mixed with a 10% strength citric acid solution.