RU2790485C1 - Biodegradable detergent and disinfectant for the food industry - Google Patents

Abstract

FIELD: household chemicals.

SUBSTANCE: invention relates to household chemicals, namely to detergent compositions intended for cleaning and disinfecting various surfaces, food processing equipment, pipelines, conveyor belts, packaging lines, containers, etc. A biodegradable detergent is described, including a composition of surface-active substances (surfactants) and auxiliary components, contains syntanol ALM-7 and ALM-10 as nonionic surfactants, cocamidopropyl betaine and C12-18 alkyldimethylamine oxide as amphoteric surfactants, sodium hydroxide is used as an alkalinity regulator, disodium salt of ethylenediaminetetraacetic acid is used as a complexing agent, as an antibacterial component - alkyldimethylbenzylammonium chloride, distilled water is used as the main component.

EFFECT: implementation of the invention provides a high washing capacity, good foam stability on vertical surfaces and an effective antibacterial effect.

1 cl, 3 ex

Description

The developed composition is a mixture based on surface-active compounds and auxiliary components intended for meat, fish processing, oil and fat, beer and non-alcoholic, liquor, wine, and confectionery industries.

Currently, the domestic market has a large assortment of professional detergents. To maintain a high level of cleanliness and sanitary and epidemiological situation in the food industry, highly effective and safe cleaners are required that can maintain the microbiological cleanliness of the production premises, equipment and inventory.

Patent RU2142499C1 [1] describes a detergent-disinfectant containing a disinfectant, a nonionic surfactant, an alkali metal polyphosphate, carbamide, a fragrance and water. As a nonionic surfactant, it contains oxyethylated monoalkylphenols based on propylene trimers, disinfectant, alkali metal polyphosphate, urea, perfume and water. Disadvantage: limited scope, since this composition cannot be used on painted surfaces; high corrosivity.

Patent RU2527966C1 [3] describes a detergent and disinfectant foam containing potassium hydroxide, a disinfectant component - catamine AB and water, and additionally: sodium hydroxide, alkylpolyglycoside and alkyldimethylamine oxide as nonionic surfactants, ethylenediaminetetraacetic acid salt, glycol A. Disadvantage: low detergent ability, low foaming, high corrosivity.

There is an invention RU2533425C1 [3], which refers to liquid detergent disinfectant compositions based on quaternary ammonium bases and is intended to remove contaminants of oil and fat, protein, organic origin, as well as to disinfect equipment in the food industry and catering establishments, containing wt.%: nonionic surfactant (surfactant); alkyldimethylbenzylammonium chloride and/or didecyldimethylammonium chloride; potassium hydroxide; potassium metasilicate; sodium gluconate; triethanolamine and water. Disadvantage: the composition contains a high level of corrosive agents, the content of only one type of surfactant, low foaming ability.

This technical solution is the closest in technical essence and the achieved result to the claimed technical solution, therefore it is taken as a prototype.

The problem of the present invention is to create a biodegradable detergent and disinfectant for cleaning and disinfecting various surfaces, food processing equipment, containers, pipelines, transport belts, packaging lines, containers, inventory, tools, work tables, as well as for cleaning production and utility rooms. Effective against bacteria, yeasts and molds, in particular strains of E. coli, Staphylococcus aureus, Streptococcus pneumoniae, fecal bacteria, Salmonella and many others.

The technical result consists in providing good foam stability on vertical surfaces, as well as good washing ability.

The invention includes biodegradable components such as nonionic and amphoteric surfactants, alkali metal hydroxide, complexing agent, antibacterial component and water, wt.%:

Component Content, wt.% Sintanol ALM-7 4-8 Sintanol ALM-10 2-6 Cocamidopropyl Betaine 10-14 Alkyldimethylamine oxide С12-18 1-5 NaOH 1-5 Ethylenediaminetetraacetic acid disodium salt 3-9 Alkyldimethylbenzylammonium chloride 3-9 Water rest

Sintanol ALM-7 and sintanol ALM-10 are used as nonionic surfactants - these are ethoxylated fatty alcohols, which are strong emulsifying agents, low toxicity and biodegradable.

Cocamidopropyl betaine, obtained from the fatty acids of coconut oil, is used as an ampholytic surfactant; it can acquire acidic and alkaline properties. It has a synergistic effect with non-ionic surfactants, providing a high degreasing and dispersing ability. Also used in the composition is C12-18 alkyldimethylamine oxide - tertiary amine oxide used in the cosmetic industry in the production of shampoos, bath foams, and in the production of household chemicals.

The disodium salt of ethylenediaminotetraacetic acid is used as a complexing agent, its presence plays a key role in the binding of hardness salts (ions Ca2+, Mg2+, Zn2+, Fe3+, Ni3+, etc.). They also prevent the formation of by-product polymeric products with salts of divalent metals, which makes it possible to avoid precipitation during dilution of the product and further storage of the solution.

As an antibacterial component, alkyldimethylbenzylammonium chloride is used, which is a highly effective antimicrobial disinfectant against bacteria of the Escherichia coli group, gram-negative and gram-positive bacteria (except tuberculosis), staphylococci, salmonella, molds and yeasts. The alkali metal hydroxide in the present invention acts as an alkalinity regulator and detergency enhancer.

Comparison of the claimed invention with the state of the art known from scientific, technical and patent documentation did not reveal a tool that has features that are identical to all the features contained in the proposed claims, therefore, it meets the condition of patentability "novelty".

This technical solution is industrially applicable, since its purpose is indicated in the description of the application and the title of the invention, it can be carried out industrially for washing food equipment. Therefore, the claimed technical solution meets the condition of "industrial applicability".

The biodegradability of the mixture components corresponds to 90-95% (GOST 32509-2013) [4], which meets the requirements of domestic and foreign standards of environmental cleanliness of household chemicals.

The pH level was measured according to GOST 22567.5-93 [5]. This indicator corresponds to pH 11.5-12, which meets the requirements of GOST, and is also optimal for this type of detergent.

To achieve optimal results when cleaning equipment and lines, it is recommended to use a foam kit, with a dilution ratio of 1:3-1:5 or a foam generator - a dilution ratio of 1:30-1:50, depending on the degree of contamination.

Method of preparation: a calculated amount of water is fed into a container equipped with a stirrer and a heating circuit, after which alkali metal hydroxide is loaded into this container in accordance with the recipe. Disodium salt of ethylenediaminetetraacetic acid is added to the hot solution until complete dissolution in the calculated amount. Next, an appropriate mixture of nonionic and amphoteric surfactants is added and stirred for 20-30 minutes until they are completely dissolved. At the end of the process, an antibacterial component is added and mixed for 10-15 minutes. During the entire preparation, the agitator must ensure complete mixing without stagnant zones.

The implementation of the claimed invention is achieved by the implementation of the specified purpose, which is illustrated by the examples below, confirming the possibility of obtaining the claimed technical result.

Example 1

The ratio of the components of a biodegradable detergent and disinfectant:

Component Content, wt.% Sintanol ALM-7 4 Sintanol ALM-10 2 Cocamidopropyl Betaine 10 Alkyldimethylamine oxide С12-18 1 NaOH 1 Ethylenediaminetetraacetic acid disodium salt 3 Alkyldimethylbenzylammonium chloride 3 Water rest

The result is insufficient foaming, poor foam stability on vertical surfaces. Good washing power. The composition of example 1 does not fully comply with the recommendations for the use of detergents for washing food equipment.

Example 2

The ratio of the components of a biodegradable detergent and disinfectant:

Component Content, wt.% Sintanol ALM-7 8 Sintanol ALM-10 6 Cocamidopropyl Betaine 14 Alkyldimethylamine oxide С12-18 5 NaOH 5 Ethylenediaminetetraacetic acid disodium salt 9 Alkyldimethylbenzylammonium chloride 9 Water rest

EFFECT: excessive foaming, good foam stability on vertical surfaces. Good washing power. The composition of example 2 does not fully comply with the recommendations for the use of detergents for washing food equipment.

Example 3

The ratio of the components of a biodegradable detergent and disinfectant:

Component Content, wt.% Sintanol ALM-7 6.5 Sintanol ALM-10 3.5 Cocamidopropyl Betaine 12 Alkyldimethylamine oxide С12-18 3 NaOH 3 Ethylenediaminetetraacetic acid disodium salt 6 Alkyldimethylbenzylammonium chloride 6 Water rest

EFFECT: optimal foam formation, good foam stability on vertical surfaces. Good washing power. The composition of example 3 fully complies with the recommendations for the use of detergents for washing food equipment.

Evaluation of washing ability was carried out by cleaning the glass surface contaminated with a universal pollutant of the following composition: grease; lanolin; emulsifier; yolk; linseed oil; sunflower oil; oleic acid; distilled water. The plates are cleaned, degreased with acetone and weighed with an accuracy of 0.0002 g. A contaminant is applied to clean plates with a brush in a uniform layer and left for a day at room temperature. Apply the test product to contaminated plates with a spray gun so that it completely covers the surface of the plate. After 10 minutes exposure with a stream of tap water (temperature 30-40°C) for 1 minute. remove the resulting emulsion. The plates dried for 1 hour at 20°C are weighed again.

Washing capacity (degree of purification) was determined by the formula:

where p0 is the initial weight of the plate, g;

p1 is the mass of the plate with the pollutant, g;

p2 - mass of the plate after washing, g.

Examples Washing capacity, % Experience 1 Experience 2 Experience 3 1 84 89 86 2 96 97 96 3 98 99 99

In the course of testing on standard test cultures ( Escherichia coli, Staphylococcus aureus, Candida albicans ), an effective antibacterial effect of the studied samples of the developed composition was established. In this case, the absence of cell growth on the samples and the formation of an extensive zone of lysis were observed.

The proposed composition of the detergent and disinfectant has the optimal composition and price/quality ratio. At the same time, the selected composition has a synergistic effect to achieve high washing power in combination with biological activity.

Information sources

1. RU 2527966 C1, C11D 1/62, C11D 1/75, C11D 1/825, C11D 1/835, C11D 3/48., publ. 09/10/2014.

2. U 2142499 C1, C11D1/72, C11D3/06, C11D3/20, C11D3/4, publ. 12/10/1999.

3. RU 2533425 C1, C11D 1/38, C11D 1/62, C11D 1/66, publ. 11/20/2014.

4. GOST 32509-2013 Surfactants. Method for determining biodegradability in the aquatic environment. Date of introduction 01.01.2015.

5. GOST 22567.5-93 Synthetic detergents and surfactants. Methods for determining the concentration of hydrogen ions. Date of introduction: 01/01/1996.

Claims (2)

Biodegradable detergent and disinfectant for cleaning and disinfecting various surfaces, food processing equipment, containers, pipelines, transport belts, packaging lines, containers, inventory, tools, work tables, as well as for cleaning production and utility rooms, including a composition of surfactants (surfactant) from a mixture of nonionic, amphoteric surfactants and auxiliary components, contains sintanol ALM-7 and ALM-10 as nonionic surfactants, cocamidopropyl betaine and C12-18 alkyldimethylamine oxide as amphoteric surfactants, sodium hydroxide is used as an alkalinity regulator, as a complexing agent - disodium salt of ethylenediaminotetraacetic acid, as an antibacterial component - alkyldimethylbenzylammonium chloride, and also contains water, wt.%: sintanol ALM-7 4-8 sintanol ALM-10 2-6 cocamidopropyl betaine 10-14 alkyldimethylamine oxide С12-18 1-5 NaOH 1-5 disodium salt of ethylenediaminetetraacetic acids 3-9 alkyldimethylbenzylammonium chloride 3-9 water the rest up to 100