A highly efficient super-concentrated fatty acid disinfectant stock solution and its preparation method and application

Abstract

The present invention relates to the technical field of disinfectant preparation, and in particular to a highly efficient super-concentrated fatty acid disinfectant stock solution and a preparation method and application thereof. The present invention provides a highly efficient super-concentrated fatty acid disinfectant stock solution, which is prepared from the following components by mass: caprylic acid, oxalic acid, capric acid, undecanoic acid, alkyl glycoside sulfosuccinate sodium salt, alcohol ether glycoside, glycerol, ethylene glycol, octadecyl stearate, and end-capped polyether. The object of the present invention is to provide a highly efficient super-concentrated fatty acid disinfectant stock solution with a high fatty acid content, saving transportation costs, strong hard water resistance, clarity and transparency at a specified dilution multiple, high efficiency and safety, low foaming and easy rinsing, good bactericidal performance, and good stability. The stock solution can be used as a disinfectant for food contact surfaces, metal hard surfaces, food processing industry, and public places.

Description

Technical Field

[0001] The invention relates to the technical field of disinfectant preparation, and in particular to a high-efficiency super-concentrated fatty acid disinfectant stock solution and a preparation method and application thereof. Background Art

[0002] To ensure food safety, in addition to having good operating standards, it is more important to prevent the invasion of viruses and bacteria. Thorough cleaning and disinfection are the key.

[0003] At present, the cleaning and disinfection products on the market mainly include acidic cleaning agents, alkaline cleaning agents, disinfectants (mainly peracetic acid, chlorine dioxide, etc.), bottle washing additives, antibacterial agents, etc. Due to the different product characteristics (pH, active ingredients, etc.) and the different development levels of sub-industries (equipment, production management), food companies have different choices for suppliers.

[0004] Acid cleaning is mainly a method that uses acidic materials as cleaning agents. Such acidic materials include organic and inorganic types. For example: acetic acid, nitric acid, phosphoric acid, citric acid, etc. Acid cleaning is mainly good for cleaning mineral dirt and can play an antibacterial role, but the cleaning effect on some fats and proteins is not so obvious.

[0005] In 2002, Ecolab, Inc. of the United States, disclosed a fatty acid sterilization composition in its U.S. Patent No. 6472358, which contains at least one fatty acid with 5 to 14 carbon atoms, a weak acid with 1 to 4 carbon atoms, and a strong acid, which is nitric acid or a combination of nitric acid and sulfonic acid. The sterilization composition contains inorganic strong acids such as nitric acid, which are highly corrosive to production equipment.

[0006] In 2016, patent CN 106675884A disclosed an acidic foam composite cleaning agent for food processing. This invention solved the problem that ordinary acidic foam cleaning agents have limited ability to remove inorganic dirt on food processing equipment, and the raw materials used do not meet the standards for cleaning agents for food processing equipment, and the foam penetration ability is limited and it is not easy to rinse. However, this product is a foam cleaning agent, which is not easy to rinse, has residues, and wastes water resources.

[0007] In 2017, patent CN 107801716A disclosed a low-foam fatty acid disinfectant. The disinfectant is not only easy to obtain raw materials, low cost, efficient and safe, low-foam and residue-free, but also has good and efficient sterilization, cleaning and antiviral effects, and good low-temperature stability. However, the total amount of organic acid in the product is up to 12%, the amount of emulsifier used is large, the water content is high, and the transportation cost is increased.

[0008] Therefore, how to provide a disinfectant stock solution with low corrosiveness, easy cleaning, low water content, good bactericidal effect and high content of effective ingredients to solve the problems existing in the above-mentioned prior art is an issue that technical personnel in this field urgently need to solve. Summary of the invention

[0009] The purpose of the present invention is to provide a high-efficiency super-concentrated fatty acid disinfection stock solution with high fatty acid content, saving transportation costs, strong resistance to hard water, clarity and transparency at a specified dilution multiple, high efficiency and safety, low foaming and easy flushing, good bactericidal performance and good stability. The stock solution can be used as a bactericidal disinfectant for food contact surfaces, metal hard surfaces, food processing industry and public places.

[0010] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0011] The present invention provides a highly efficient super-concentrated fatty acid disinfection stock solution, which is prepared from the following components in parts by weight:

[0012]

[0013] Preferably, the sodium salt of alkyl glycoside sulfosuccinate is a compound having the following general formula:

[0014]

[0015] Wherein: R is a saturated or unsaturated, linear or branched alkyl group with 8 to 18 carbon atoms; n=1.2 to 1.4 is the average degree of polymerization of glucose units.

[0016] Preferably, the sodium salt of alkyl glycoside sulfosuccinate is C 12-14 Alkyl glycoside sulfosuccinate sodium salt, n=1.3.

[0017] Among them, "C 12-14 " means: the number of C atoms in the alkyl glycoside product is and mixture, and what is used here is a mixture of C12 and C14, so the number of C atoms in the product is also a mixture recorded as C12-14.

[0018] Preferably, the alcohol ether glycoside is a compound having the following general formula:

[0019]

[0020] Wherein: R is an alkyl group with 10 to 16 carbon atoms, m=1.2 to 1.8 is the average degree of polymerization of glucose units, and n is 1 to 3.

[0021] Preferably, the alcohol ether glycoside is C 12-14 Alcohol ether glycoside m=1.2,n=2 or C 16-18Alcohol ether glycoside n=3, m=1.8.

[0022] The present invention also provides a method for preparing the highly efficient super-concentrated fatty acid disinfectant stock solution, comprising the following steps:

[0023] (1) mixing and heating alkyl glycoside sulfosuccinate sodium salt, alcohol ether glycoside, glycerol, ethylene glycol, octadecyl stearate and blocked polyether, while stirring, to obtain phase A;

[0024] (2) Caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated while stirring to obtain phase B;

[0025] (3) Add phase B into phase A and mix.

[0026] Preferably, the heating temperatures in steps (1) and (2) are independently 50 to 80°C.

[0027] Preferably, the heating temperatures in steps (1) and (2) are independently 60-70°C.

[0028] The present invention also provides the high-efficiency super-concentrated fatty acid disinfection stock solution, and the use of the high-efficiency super-concentrated fatty acid disinfection stock solution prepared by the high-efficiency super-concentrated fatty acid disinfection stock solution preparation method in food disinfection.

[0029] The present invention also provides the high-efficiency super-concentrated fatty acid disinfection stock solution, and application of the high-efficiency super-concentrated fatty acid disinfection stock solution prepared by the high-efficiency super-concentrated fatty acid disinfection stock solution preparation method in medical disinfectant.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. Use non-toxic and non-irritating sodium salt of alkyl glycoside sulfosuccinate and alcohol ether glycoside as emulsifiers to increase the content of effective fatty acids, prepare super-concentrated fatty acid disinfectant stock solution, and reduce transportation costs;

[0032] 2. The disinfectant has strong resistance to hard water. At the specified dilution concentration (such as 100ppm, 200ppm), it is clear, transparent and stable with good stability;

[0033] 3. The disinfectant has low foaming properties and is easy to rinse, saving water resources;

[0034] 4. The disinfectant has a spectrum of bactericidal properties with a bactericidal rate of more than 99.99%. It can be used as a sterilizer on food contact surfaces, metal hard surfaces, food processing industry, and public places. DETAILED DESCRIPTION

[0035] The present invention provides a highly efficient super-concentrated fatty acid disinfection stock solution, which is prepared from the following components in parts by weight:

[0036]

[0037] It is preferably prepared from the following components in parts by weight:

[0038]

[0039] It is further preferably prepared from the following components in parts by weight:

[0040]

[0041]

[0042] More preferably, it is prepared from the following components in parts by weight:

[0043]

[0044] In the present invention, the alkyl glycoside sulfosuccinate sodium salt is a compound having the following general formula:

[0045]

[0046] Wherein: R is a saturated or unsaturated, linear or branched alkyl group with 8 to 18 carbon atoms; n=1.2 to 1.4 is the average degree of polymerization of glucose units.

[0047] In the present invention, the sodium salt of alkyl glycoside sulfosuccinate is C 12-14 Alkyl glycoside sulfosuccinate sodium salt, n=1.3.

[0048] In the present invention, the alcohol ether glycoside is a compound having the following general formula:

[0049]

[0050] Wherein: R is an alkyl group with 10 to 16 carbon atoms, m=1.2 to 1.8 is the average degree of polymerization of glucose units, and n is 1 to 3.

[0051] In the present invention, the alcohol ether glycoside is C 12-14 Alcohol ether glycoside m=1.2,n=2 or C 16-18 Alcohol ether glycoside n=3, m=1.8.

[0052] The present invention also provides a method for preparing the highly efficient super-concentrated fatty acid disinfectant stock solution, comprising the following steps:

[0053] (1) mixing and heating alkyl glycoside sulfosuccinate sodium salt, alcohol ether glycoside, glycerol, ethylene glycol, octadecyl stearate and blocked polyether, while stirring, to obtain phase A;

[0054] (2) Caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated while stirring to obtain phase B;

[0055] (3) Add phase B into phase A and mix.

[0056] In the present invention, the heating temperatures in steps (1) and (2) are independently 50 to 80°C; preferably 64 to 76°C; more preferably 68 to 72°C; and more preferably 70°C.

[0057] The present invention also provides the high-efficiency super-concentrated fatty acid disinfection stock solution, and the use of the high-efficiency super-concentrated fatty acid disinfection stock solution prepared by the high-efficiency super-concentrated fatty acid disinfection stock solution preparation method in food disinfection.

[0058] The present invention also provides the high-efficiency super-concentrated fatty acid disinfection stock solution, and application of the high-efficiency super-concentrated fatty acid disinfection stock solution prepared by the high-efficiency super-concentrated fatty acid disinfection stock solution preparation method in medical disinfectant.

[0059] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0060] Example 1

[0061] A highly efficient super-concentrated fatty acid disinfectant stock solution, consisting of the following components in percentage by mass:

[0062]

[0063]

[0064] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0065] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 12-14 , m = 1.3), alcohol ether glycoside (R = C 12-14 , n=3, m=1.8), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 60° C., and stirred while heating to obtain phase A;

[0066] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 60° C., and stirred while heating to obtain phase B;

[0067] (3) Add phase B into phase A and stir continuously until the mixture is evenly mixed to obtain a clear and transparent product.

[0068] Example 2

[0069] A highly efficient super-concentrated fatty acid disinfectant stock solution, consisting of the following components in percentage by mass:

[0070]

[0071]

[0072] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0073] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 12-14 , m = 1.3), alcohol ether glycoside (R = C 12-14 , n=3, m=1.8), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 65° C., and stirred while heating to obtain phase A;

[0074] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 65° C., and stirred while heating to obtain phase B;

[0075] (3) Add phase B into phase A and stir continuously until the mixture is evenly mixed to obtain a clear and transparent product.

[0076] Example 3

[0077] A highly efficient super-concentrated fatty acid disinfectant stock solution, consisting of the following components in percentage by mass:

[0078]

[0079] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0080] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 10-12 , m = 1.2), alcohol ether glycoside (R = C 14-16 , n=3, m=1.8), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 70° C., and stirred while heating to obtain phase A;

[0081] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 65° C., and stirred while heating to obtain phase B;

[0082] (3) Add phase B into phase A and stir continuously until the mixture is evenly mixed to obtain a clear and transparent product.

[0083] Example 4

[0084] A highly efficient super-concentrated fatty acid disinfectant stock solution, consisting of the following components in percentage by mass:

[0085]

[0086] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0087] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 16-18 , m = 1.4), alcohol ether glycoside (R = C 14-16 , n=2, m=1.8), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 55° C., and stirred while heating to obtain phase A;

[0088] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 75° C., and stirred while heating to obtain phase B;

[0089] (3) Add phase B into phase A and stir continuously until the mixture is evenly mixed to obtain a clear and transparent product.

[0090] Example 5

[0091] A highly efficient super-concentrated fatty acid disinfectant stock solution, consisting of the following components in percentage by mass:

[0092]

[0093] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0094] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 12-14 , m = 1.3), alcohol ether glycoside (R = C 12-14 , n=3, m=1.8), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 70° C., and stirred while heating to obtain phase A;

[0095] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 70° C., and stirred while heating to obtain phase B;

[0096] (3) Add phase B into phase A and stir continuously until the mixture is evenly mixed to obtain a clear and transparent product.

[0097] Comparative Example 1

[0098] A highly efficient super-concentrated fatty acid disinfectant stock solution, consisting of the following components in percentage by mass:

[0099]

[0100] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0101] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 12-14 , m=1.3), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 70° C., and stirred while heating to obtain phase A;

[0102] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 70° C., and stirred while heating to obtain phase B;

[0103] (3) Add phase B to phase A and stir continuously until the mixture is evenly mixed and the product becomes opaque. Set aside to separate into layers.

[0104] Comparative Example 2

[0105] A highly effective super-concentrated fatty acid disinfectant stock solution, comprising the following components in percentage by mass:

[0106]

[0107] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0108] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 12-14 , m = 1.3), alcohol ether glycoside (R = C 12-14 , n=3, m=1.8), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 70° C., and stirred while heating to obtain phase A;

[0109] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 70° C., and stirred while heating to obtain phase B;

[0110] (3) Add phase B into phase A and stir continuously until the mixture is evenly mixed to obtain a clear and transparent product.

[0111] Comparative Example 3

[0112] A highly effective super-concentrated fatty acid disinfectant stock solution, comprising the following components in percentage by mass:

[0113]

[0114]

[0115] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0116] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 12-14 , m = 1.3), alcohol ether glycoside (R = C 12-14, n=3, m=1.8), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 70° C., and stirred while heating to obtain phase A;

[0117] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 70° C., and stirred while heating to obtain phase B;

[0118] (3) Add phase B into phase A and stir continuously until the mixture is evenly mixed to obtain a clear and transparent product.

[0119] Comparative Example 4

[0120] A highly effective super-concentrated fatty acid disinfectant stock solution, comprising the following components in percentage by mass:

[0121]

[0122]

[0123] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0124] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 12-14 , m = 1.3), alcohol ether glycoside (R = C 12-14 , n=3, m=1.8), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 65° C., and stirred while heating to obtain phase A;

[0125] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 65° C., and stirred while heating to obtain phase B;

[0126] (3) Add phase B into phase A and stir continuously until the mixture is evenly mixed to obtain a clear and transparent product.

[0127] Comparative Example 5

[0128] A highly effective super-concentrated fatty acid disinfectant stock solution, comprising the following components in percentage by mass:

[0129]

[0130]

[0131] The preparation method of the above-mentioned high-efficiency super-concentrated fatty acid disinfectant stock solution is as follows:

[0132] (1) According to the composition of the disinfectant stock solution, alkyl glycoside sulfosuccinate sodium salt (R = C 12-14 , m = 1.3), alcohol ether glycoside (R = C 12-14, n=3, m=1.8), glycerin, ethylene glycol, stearyl stearate and blocked polyether are mixed and heated to 40° C., and stirred while heating to obtain phase A;

[0133] (2) according to the composition of the disinfectant stock solution, caprylic acid, oxalic acid, capric acid, and undecanoic acid are mixed and heated to 40° C., and stirred while heating to obtain phase B;

[0134] (3) Add phase B to phase A and stir continuously until the mixture is evenly mixed and the product becomes opaque. Set aside to separate into layers.

[0135] Experimental Example 1

[0136] Experiments were conducted on Examples 1 to 5 and Comparative Examples 1 to 4:

[0137] 1. The foam performance test method is based on GB / T 7462-94 using the improved Roche foam method.

[0138] 2. The determination method of antibacterial rate refers to China Light Industry Standard QB / T 2738-2012

[0139] The test results of the superconcentration obtained in the examples and comparative examples are shown in Table 1 below:

[0140] Table 1 Measurement results

[0141]

[0142] It can be seen from Table 1 that the products prepared in Examples 1-5 are all clear and transparent. Compared with Examples 1-5, in Comparative Example 1, no alcohol ether glycoside is added, and the prepared product is opaque, delaminated, and unstable; in Comparative Example 2, no alkyl glycoside sulfosuccinate sodium salt is added, and the prepared product is clear and transparent, but it is opaque after dilution as required; Comparative Example 5 has a different preparation method, and the prepared product is delaminated and unstable.

[0143] In comparative example 3, the fatty acid content is calculated in small amounts, and the antibacterial rate of the obtained product is small; in comparative example 4, no end-capped polyether is added, and the prepared product has high foam performance, and the foam is relatively stable, and rinsing is difficult. Examples 1 to 5 are all within the scope of the present invention, have strong hard water resistance, are clear and transparent at a specified dilution multiple, are highly efficient and safe, are low in foam and easy to rinse, have good bactericidal performance, good stability, and have good market prospects.

[0144] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A super concentrated fatty acid disinfectant stock solution, characterized in that: The invention is prepared from the following components in parts by weight: 30-50 parts of caprylic acid, 3-5 parts of oxalic acid, 3-8 parts of capric acid, 10-20 parts of undecanoic acid, 2-5 parts of sodium salt of alkyl glycoside sulfosuccinate, 5-10 parts of alcohol ether glycoside, 5-15 parts of glycerol, 1-4 parts of ethylene glycol, 3-5 parts of octadecyl stearate, and 5-10 parts of blocked polyether; The method for preparing the super-concentrated fatty acid disinfectant stock solution comprises the following steps: (1) mixing and heating alkyl glycoside sulfosuccinate sodium salt, alcohol ether glycoside, glycerol, ethylene glycol, octadecyl stearate and capped polyether, while stirring, to obtain phase A; (2) Mix caprylic acid, oxalic acid, capric acid and undecanoic acid and heat them while stirring to obtain phase B; (3) Add phase B into phase A and mix; The heating temperatures in steps (1) and (2) are independently 50 to 80°C.

2. The super concentrated fatty acid disinfectant stock solution according to claim 1, characterized in that: The alkyl glycoside sulfosuccinate sodium salt is a compound having the following general formula: Wherein: R is a saturated or unsaturated, linear or branched alkyl group with 8 to 18 carbon atoms; n = 1.2 to 1.4; n is the average degree of polymerization of glucose units.

3. The super concentrated fatty acid disinfectant stock solution according to claim 2, characterized in that: The alkyl glycoside sulfosuccinate sodium salt is C 12-14 Alkyl glycoside sulfosuccinate sodium salt, n = 1.3; n is the average degree of polymerization of glucose units.

4. The super concentrated fatty acid disinfectant stock solution according to claim 1, characterized in that: The alcohol ether glycoside is a compound having the following general formula: Wherein: R is an alkyl group with 10 to 16 carbon atoms, m=1.2 to 1.8, n is 1 to 3; m is the average degree of polymerization of glucose units.

5. The super concentrated fatty acid disinfectant stock solution according to claim 4, characterized in that: The alcohol ether glycoside is C 12-14 Alcohol ether glycoside, m=1.2, n=2; m is the average degree of polymerization of glucose units.

6. The method for preparing a super-concentrated fatty acid disinfectant stock solution according to any one of claims 1 to 5, characterized in that: The steps include: (1) mixing and heating alkyl glycoside sulfosuccinate sodium salt, alcohol ether glycoside, glycerol, ethylene glycol, octadecyl stearate and capped polyether, while stirring, to obtain phase A; (2) Caprylic acid, oxalic acid, capric acid and undecanoic acid are mixed and heated while stirring to obtain phase B; (3) Add phase B to phase A and mix; The heating temperatures in steps (1) and (2) are independently 50 to 80°C.

7. The preparation method according to claim 6, characterized in that: The heating temperatures in steps (1) and (2) are independently 60-70°C.

8. Use of the super-concentrated fatty acid disinfection stock solution according to any one of claims 1 to 5 or the super-concentrated fatty acid disinfection stock solution prepared by the method for preparing the super-concentrated fatty acid disinfection stock solution according to claim 6 or 7 in food disinfection.

9. Use of the super-concentrated fatty acid disinfectant stock solution according to any one of claims 1 to 5 or the super-concentrated fatty acid disinfectant stock solution prepared by the method for preparing the super-concentrated fatty acid disinfectant stock solution according to claim 6 or 7 in preparing a medical disinfectant.

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