RU104539U1 - CAPACITY FOR LIQUID PRODUCT - Google Patents

Abstract

 1. A container for a liquid product, comprising a housing, characterized in that it is provided with means for antimicrobial action on the product located in it, made in the form of at least one pair of electrically connected electrodes made of metals or coated with metals placed inside the housing with redox potentials of different magnitude, while a metal whose ions have oligodynamically used an electrode with a lower redox potential their properties. ! 2. The container according to claim 1, characterized in that the metal from the group comprising silver, gold, copper or an alloy containing mainly at least one of the metals of this group is used as the electrode metal with a lower redox potential. ! 3. The container according to claim 1, characterized in that the metal from the group comprising gold, platinum, silver or an alloy containing mainly at least one of the metals of this group is used as the electrode metal with a large redox potential. ! 4. The container according to claim 1, characterized in that the pair of electrically connected electrodes is made in the form of short-circuited plates fixed inside the housing, or formed by a film coating on the inner surface of the housing. ! 5. The container according to claim 1, characterized in that the housing is made of a non-conductive material or coated on its inner surface with a non-conductive material.

Description

The invention relates to the field of food storage and relates to the design of consumer containers, intended primarily for liquid food products.

Consumer containers are known, which are a hollow vessel with a filling neck or a filling hole, into which a liquid food product, in particular drinks, is placed (see GOST 10117.2-2001 - Glass bottles for food liquids. Types, parameters and main dimensions).

These well-known consumer containers do not provide long-term storage of food products without changing their initial properties due to the negative effects of the vital processes of bacteria contained in the products. As a result of this, in order to increase the shelf life of products in consumer containers, it is necessary to use various methods of processing products and to comply with their storage conditions, which ensure the slowdown of metabolic processes in the product.

Pre-sterilization treatment of a consumer container, pasteurization or sterilization of a product before placing it in a consumer container or directly in a consumer container, adding substances to the product with an action aimed at its conservation are used as methods of processing products and their storage conditions that ensure the slowdown of metabolic processes. adding preservatives, thickeners, disintegrants, stabilizers, etc.), cooling the product and storing it in consumers capacity at low temperatures, protecting the product from light exposure during storage until use.

However, thermal sterilization processing of the product, its cooling and storage in a consumer container at low temperatures, as well as the addition of preservatives to the product, have a negative effect on the product and its nutritional properties and require an increase in labor costs in the production and storage of the product.

Also known are consumer containers containing means for creating a reduced storage temperature of the product (patent RU No. 2183003 C2, 2002, patent RU No. 2204092 C2, 2003), means for protecting the product from negative temperature and light effects (patent RU No. 2263061 C2, 2005) , means for creating a gaseous environment conducive to improving the safety of the product (patent RU 2361795 C2, 2009).

These well-known consumer containers, along with the disadvantages inherent in the above methods used in them, are characterized by the complexity of the structures and significant material costs in their manufacture and operation.

The technical result of this utility model is to improve the storage conditions of a liquid food product in a consumer container and increase the safety of its food properties while reducing costs and negative effects on the product due to sterilization processing of the product, adding preservative additives to it and observing the low-temperature storage mode.

The specified technical result is achieved in that the container for a liquid product containing a housing is provided with means for antimicrobial exposure of the product inside it, made in the form of at least one pair of electrically connected electrodes made of metal or coated with metals having different redox potentials, while metal as the electrode with a lower redox potential is metal, ions to torogo possess oligodynamic properties.

As an electrode metal with a lower redox potential, a metal from the group including silver, gold, copper, or an alloy containing mainly at least one of the metals of this group is used.

As the metal of the electrode with a large redox potential, a metal from the group comprising gold, platinum, silver, or an alloy containing mainly at least one of the metals of this group is used.

A pair of electrically connected electrodes is made in the form of short-circuited plates fixed inside the housing, or formed by a film coating on the inner surface of the housing.

In this case, the container body is made of a non-conductive material or coated on its inner surface with a non-conductive material.

The essence of the proposed utility model is illustrated by the following graphic materials:

figure 1 shows a General view of the container for a liquid product made of non-conductive material;

figure 2 shows a General view of the container for a liquid product, made with a coating of the inner surface of a non-conductive material.

The container for a liquid product contains a housing 1 with a neck 2. On the inner surface 3 of the housing 1 there is a means for antimicrobial exposure to the product located in it, made in the form of electrically connected electrodes 4, 5.

The electrodes 4, 5 are made in the form of longitudinal and / or transverse plates fixed on the inner side surface 3 of the housing 1, and / or in the form of a plate fixed on the inner surface of the bottom of the housing 1 (Fig. 1), or in the form of similarly arranged film strips coating deposited on the inner surface 3 of the housing 1 (figure 2), with the formation of a short-circuited metal pair with different redox potentials.

The container body 1 is made of a non-conductive material (FIG. 1) or with a coating 6 on its inner surface 3 of a non-conductive material (FIG. 2).

An electrode with a lower redox potential (anode) is made of a metal whose ions have oligodynamic properties, for example, of the following metals: silver, gold, copper or an alloy, mainly containing at least one of these metals.

The electrode with a large redox potential (cathode) is made of the following metals: gold, platinum, silver or an alloy, mainly containing at least one of these metals.

In electrochemistry, it is customary to call anode an electrode that is connected to the positive pole of the current source and which dissolves in the electrolyte under the influence of the electric field of this source. If the dissolution of the electrode occurs upon the contact of two dissimilar metals (short-circuited metal pairs), without the application of an external electric field, the sign of its charge may depend not only on the magnitude of the electrochemical potential with respect to the other electrode, but also on the magnitude of the electron work function and degree of activity (or from inertness) of the electrolyte to the electrodes. Therefore, in short-circuited metal vapors, it is customary to call a soluble electrode an anode, even if the sign of its charge is negative [1].

According to the proposed utility model, one or more short-circuited metal pairs composed of identical anodes and cathodes of the same or different metal composition can be placed in a consumer container.

For example, the anode can be made of copper, and the cathode can be made of silver or coated with silver (Cu-Ag electrode pair, potential difference 0.06 μV). The anode can be silver, and the cathode can be gold or coated with gold (Ag-Au electrode pair, potential difference 0.015 μV) or another metal that has a large electrochemical potential in this case with respect to silver, for example, Ag-Pt electrode pair with a potential difference of 0.044 μV, Au-Pt with a potential difference of 0.025 μV, Cu-au with a potential difference of 0.09 μV.

In any case, with respect to the anode (dissolving electrode), the cathode always has a greater electrochemical potential.

Since, according to the Volta rule, for the occurrence of a contact potential difference between the electrodes it does not matter what the conductor is made between, the base of the device can be either metal or dielectric. For example, copper is partially coated with a layer of silver (copper-silver pair). Copper is completely covered with a layer of silver, then a layer of gold is partially applied (a pair of silver-gold). The dielectric is completely covered with a layer of silver, then a layer of gold is partially applied (a pair of silver-gold). In this case, in both cases, we obtain the desired device.

Potential differences for the most efficient short-circuited metal pairs used in the utility model are shown in Table 1.

Table 1. Metal couple Potential difference, μV Cu-Ag 0.06 Cu-Au 0.09 Ag-au 0.015 Ag-pt 0,044 Au-pt 0,025

If necessary, a means for antimicrobial action on the product in the container can be assembled on the basis of the battery, in particular, when the task is to separate two or more metals into the product simultaneously. For example, when using a combination of Cu-Ag-Pt, copper and silver ions will enter the product, and when using a combination of Ag-Au-Pt, silver and gold ions will enter the product.

If it is necessary to use precious metals (silver, gold, platinum, etc.), to save them, the electrodes can be made of any conductive material and covered with a layer of the necessary metal. In this case, the coating thickness of the cathode can be minimal - 0.1 μm, since its material is not consumed, and the thickness of the coating of the anode is calculated by the Faraday formula, in accordance with the need for requirements on the life of the device and the concentration required in the consumer container with the product metal ions of the anode.

In the proposed utility model, in a short-circuited metal pair, metal is always used as an anode, whose ions have oligodynamic properties. The cathode ions in some combinations of short-circuited metal pairs in minimum concentrations with respect to the anode ions can also diffuse into the solution (product), but this is a third-party and insignificant result, which is a side effect when performing the task.

Means for antimicrobial effects on the product can be performed either all-metal, or by applying metal coatings to a single base of a conductor or dielectric, including the walls of a consumer container or closure, if any in the consumer container.

The base of the product can be both rigid and elastic. Including the basis may be the walls of the consumer container itself or means of capping, if any, in the consumer container. The consumer container with the product itself can also be flexible and elastic.

The form of the antimicrobial agent for the product and its location in the consumer capacity is not significant. The shape of the electrodes and their relative position relative to each other are not important, it is important to use the very principle of a short-circuited metal pair with electrodes made of metals with different electrochemical potentials, one of which (the anode) has oligodynamic properties, and accordingly dissolves in the product, and the other (the cathode ) and has a large redox potential with respect to the anode. For serial use, variants of any geometric shape made of a flat workpiece are most suitable, since flat workpieces can be made by stamping from rolled (foil) materials, as the most ergonomic and suitable for forming the device. Also, before forming a single device, it is possible to apply the cathode material by a known and simple method of cathodic deposition on the anode material preform.

The operation of the device is based on the well-known physicochemical properties of short-circuited metal pairs well known in electrochemistry and electroplating, and is carried out as follows. When two dissimilar metals are connected, electrons rush from a metal with a lower electron work function (anode) to a metal with a higher electron work function (cathode) and a contact potential difference will arise between them (along the contact line). In this case, the anode is charged positively, and the cathode is negatively charged. Then comes the electronic equilibrium. To maintain such electron motion between the electrodes, an external force is required.

When a short-circuited metal pair is immersed in any even the weakest electrolyte (in this case, a liquid food product), to which the electrodes are chemically inert, ions will begin to diffuse from their surface. Since metal ions have a positive charge, they will not be able to separate from the negatively charged electrode (cathode), but will be repelled by the same charged electrode (anode), which causes new free electrons to appear in it. Such a process can go on until the anode electrode is completely dissolved.

With the beginning of the growth in the number of bacteria in the food product, which precedes, causes and spoils the product in the process of their reproduction, the product medium becomes more acidic in relation to the initial state, since at the same time as the number of bacteria increases, the content of enzymes and metabolic products associated with the reproduction process increases bacteria. On the other hand, with an increase in the acidity of the medium, the operation of the device for the release of anode ions into the product occurs more efficiently. Metal ions isolated in the product, possessing oligodynamic properties, interfere with the vital functions of microbes, interfering with the formation of new enzymes, and block the amino acids that make up the enzyme, preventing the further growth of bacteria. As a result, the phase of bacteriostasis begins in the product; accordingly, the spoilage period of the product comes later.

Thus, the proposed utility model improves the storage conditions of a liquid food product in a consumer container and increases the safety of its nutritional properties. The utility model is characterized by simplicity of construction and requires significant material costs in the manufacture and operation due to sterilization processing of the product, the addition of preservative additives to it and compliance with the low-temperature regime of its storage.

Despite the fact that the processes used in the utility model are based on well-known and studied physical principles and phenomena, the essence of the proposed utility model solves the problem and provides the specified technical result.

The applicant’s analysis of the available patent and scientific and technical information showed that there is no information on the use in these applications for the intended purpose of the oligodynamic effect of metal ions using an antimicrobial agent on a product based on a short-circuited metal pair placed directly in a product located in a consumer’s container consumer capacity, and ensuring its contact with the product.

The solution of the problem confirms the novelty of the utility model and its compliance with the patentability requirements of the utility model.

Information sources

1. A.M. Yampolsky, V.A. Ilyin. Quick reference electroplating. L .: Engineering, 1981, p. 14.

Claims (5)

1. A container for a liquid product, comprising a housing, characterized in that it is provided with means for antimicrobial action on the product located in it, made in the form of at least one pair of electrically connected electrodes made of metals or coated with metals placed inside the housing with redox potentials of different magnitude, while a metal whose ions have oligodynamically used an electrode with a lower redox potential their properties. 2. The container according to claim 1, characterized in that the metal from the group comprising silver, gold, copper or an alloy containing mainly at least one of the metals of this group is used as the electrode metal with a lower redox potential. 3. The container according to claim 1, characterized in that the metal from the group comprising gold, platinum, silver or an alloy containing mainly at least one of the metals of this group is used as the electrode metal with a large redox potential. 4. The container according to claim 1, characterized in that the pair of electrically connected electrodes is made in the form of short-circuited plates fixed inside the housing, or formed by a film coating on the inner surface of the housing. 5. The container according to claim 1, characterized in that the housing is made of a non-conductive material or coated on its inner surface with a non-conductive material.