Special cleaning agent for poultry eggs as well as preparation method and application of special cleaning agent

Abstract

The invention belongs to the technical field of cleaning of poultry eggs, and discloses a special cleaning agent for poultry eggs as well as a preparation method and application thereof. The special cleaning agent for poultry eggs comprises the following components: linear alkylbenzene sulfonate, fatty alcohol polyoxyethylene ether sodium sulfate, cocoanut fatty acid diethanolamide, sodium silicate, sodium tripolyphosphate, sodium carbonate, sodium chloride, sodium hypochlorite, a defoaming agent, an enzyme preparation and water. The cleaning agent is used for cleaning fresh poultry eggs, dirt on the surfaces of the poultry eggs can be rapidly removed, the dirt can be prevented from being adhered again, the sterilization rate on escherichia coli, staphylococcus aureus and salmonella reaches 95% or above, meanwhile, the influence on the strength of the poultry eggs can be reduced to the maximum extent, and the breakage rate of the poultry eggs is kept at the low level.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning poultry eggs, and in particular to a special cleaning agent for poultry eggs, a preparation method and application thereof. Background Art

[0002] Poultry eggs are a common food in people's daily diet. The dirt such as feces, blood, feathers, etc. on their surface will not only bring inconvenience to the storage, processing and inspection of poultry eggs, but also easily lead to the reproduction of microorganisms, thus affecting the quality and safety of poultry eggs and reducing their edible value and commercial value. In many countries and regions, untreated poultry eggs have long been banned from entering the market, and fresh poultry eggs must be properly cleaned and sterilized before they are put on the market. At present, the cleaning and sterilization of fresh poultry eggs are usually carried out separately. First, the dirt on the surface of the poultry eggs is removed by washing or wiping, and then the poultry eggs are sterilized by soaking or gas fumigation using bactericides such as peracetic acid, potassium permanganate, ozone, chlorine dioxide, etc. Not only are the steps cumbersome, but if not handled properly, it may lead to poor cleaning or sterilization effects, and may also affect the strength and appearance structure of the eggshell, increasing the damage of the eggshell. Summary of the invention

[0003] Based on the above reasons, the purpose of the present invention is to provide a special cleaning agent for poultry eggs, which can quickly remove dirt on the surface of fresh poultry egg shells and kill pathogenic bacteria on the egg shells. The present invention also provides a preparation method and application method of the above special cleaning agent for poultry eggs.

[0004] In order to achieve the above object, the first technical solution adopted by the present invention is: A special cleaning agent for poultry eggs comprises the following components: linear alkylbenzene sulfonate, sodium polyoxyethylene fatty alcohol ether sulfate, coconut oil fatty acid diethanolamide, a first defoaming agent, sodium tripolyphosphate, sodium carbonate, sodium chloride, sodium hypochlorite, a second defoaming agent, an enzyme preparation and water.

[0005] The synergistic effect of the three components, linear alkylbenzene sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate and coconut oil fatty acid diethanolamide, can improve the ability of the cleaning agent to infiltrate the eggshell surface, loosen and remove dirt on the surface of fresh eggshells during the eggshell cleaning process, and can emulsify and solvate the dirt.

[0006] The linear alkylbenzene sulfonate is sodium alkylbenzene sulfonate having 10 to 16 carbon atoms, for example, sodium dodecylbenzene sulfonate.

[0007] The mass fractions of the linear alkylbenzene sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate, and coconut oil fatty acid diethanolamide are 27%-29%, 21%-23%, and 7%-9%, respectively.

[0008] The combined use of the three sodium salts of sodium tripolyphosphate, sodium carbonate and sodium chloride can further improve the cleaning ability of the detergent on the eggshell of fresh poultry eggs, and can prevent dirt from re-adhering to the surface of the eggshell.

[0009] Preferably, the mass fractions of the sodium tripolyphosphate, sodium carbonate and sodium chloride are 1.5%-2.5%, 3%-4% and 4%-4.5% respectively.

[0010] The sodium hypochlorite functions by cooperating with the above components to kill pathogenic bacteria such as Escherichia coli, Staphylococcus aureus and Salmonella on the eggshells of fresh poultry eggs.

[0011] Preferably, the mass fraction of the sodium hypochlorite is 8%-9%.

[0012] The use of the first defoamer and the second defoamer can prevent the generation of more foam during the fresh egg washing process, which affects the washing effect. The first defoamer is selected from one or more of sodium silicate, polydimethylsiloxane, and polydimethylsiloxane emulsion, and the second defoamer is selected from one or more of polydimethylsiloxane and polydimethylsiloxane emulsion.

[0013] Preferably, the mass fractions of the first defoaming agent and the second defoaming agent are 1%-1.4% and 0.4%-0.6%, respectively.

[0014] The enzyme preparation includes protease and lipase. The protease includes pepsin, trypsin and alkaline protease, which can quickly clean blood stains, blood spots, blood clots and dry egg white liquid adhered to the eggshell surface; the lipase is alkaline lipase, which can quickly clean fat and grease in dry egg yolk liquid. The combined use of the protease and lipase can further improve the cleaning effect of fresh poultry eggs.

[0015] Preferably, the mass fraction of the enzyme preparation is 0.03%-0.05%.

[0016] The components of the special cleaning agent for poultry and eggs are all food grade.

[0017] The special cleaning agent for poultry eggs is a liquid product. The appearance, odor, stability, pH value, fluorescent brightener, methanol, and heavy metal indicators of the product all comply with the provisions of GB / T 9985-2022 "Detergents for Hand-washing Dishware".

[0018] The second technical solution adopted by the present invention is: The preparation method of the above-mentioned special cleaning agent for poultry eggs comprises the following steps: Slowly adding linear alkylbenzene sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate and coconut oil fatty acid diethanolamide to water in sequence, stirring continuously during the adding process, to obtain a first material; Slowly adding sodium silicate to the first material in portions to obtain a second material; Adding sodium tripolyphosphate, sodium carbonate, sodium chloride, and then sodium hypochlorite and a defoaming agent to the second material in sequence, homogenizing and ultrasonicating to obtain a third material; Add the enzyme preparation to the third material and mix well.

[0019] During the preparation of the first material, linear alkylbenzene sulfonate, sodium polyoxyethylene fatty alcohol ether sulfate and coconut oil fatty acid diethanolamide cannot be added together, otherwise agglomeration will occur, thereby reducing the use effect of the special cleaning agent for poultry eggs.

[0020] If the first defoamer is sodium silicate, it is difficult to dissolve and needs to be added slowly in batches to increase its dissolution rate and avoid generating too much precipitation. The first defoamer and the second defoamer need to be added in steps to ensure the effect of eliminating foam in the special cleaning agent for poultry eggs.

[0021] The role of the homogenization and ultrasound is to fully dissolve the ingredients in the egg cleaning agent to ensure its cleaning effect on fresh eggs. It should be noted that homogenization and ultrasound can easily reduce the activity of the enzyme preparation or even inactivate it, so the enzyme preparation needs to be added after homogenization and ultrasound treatment to ensure its activity.

[0022] Preferably, the homogenization pressure is 15-70 MPa and the time is 20-28 min.

[0023] Preferably, the frequency of the ultrasound is 10-60 kHz and the intensity is 10-100 W / cm 2 , time is 2-6 min.

[0024] The third technical solution adopted by the present invention is: The application method of the above-mentioned special cleaning agent for poultry and eggs is to add the special cleaning agent for poultry and eggs into water, mix it evenly, and then clean the fresh poultry eggs by spraying.

[0025] Preferably, the dosage of the special cleaning agent for poultry eggs is 3%-6% of the water mass.

[0026] Preferably, the pH value of the water is 9-11, and the pH is adjusted using 1% sodium carbonate.

[0027] When using the special cleaning agent for poultry eggs of the present invention to clean poultry eggs, it is not necessary to use water with a temperature higher than 10°C (41-44°C) from the internal temperature of the poultry eggs to passivate the activity of microorganisms on the surface of the eggshell to prevent pathogenic bacteria from entering the interior of the eggshell. When the water temperature is maintained at 32-35°C, the sterilization rate of pathogenic bacteria on the surface of the eggshell can reach more than 95%. If it exceeds 35°C, the sterilization effect will be reduced.

[0028] The beneficial effects of the present invention are: (1) The egg cleaning agent of the present invention can quickly remove dirt on the eggshell surface and prevent the dirt from re-adhering. The rate of Escherichia coli, Staphylococcus aureus and Salmonella mold on the eggshell is more than 95%. In addition, the egg cleaning agent has little effect on the strength of the eggshell and the egg breakage rate is low.

[0029] (2) The present invention adds each component slowly in sequence and combines homogenization and ultrasonic treatment to fully dissolve each component, thereby ensuring that the prepared special cleaning agent for poultry eggs is not stratified and does not contain any suspended matter or precipitation. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present invention clearer, the scheme of the present invention is further described in detail below in conjunction with embodiment.It will be appreciated by those skilled in the art that the following examples are exemplary only, and are not intended to limit the scope of the present invention.In addition, in the following description, those not indicating specific conditions in the examples are carried out according to the conditions of normal conditions or manufacturer's recommendations.Reagents used or instruments not indicating manufacturers are conventional products that can be obtained by commercial purchase.

[0031] The special cleaning agent for poultry eggs of the present invention can be widely used in the cleaning of poultry eggs such as chicken eggs, duck eggs, goose eggs, etc. The following examples use fresh chicken eggs as the cleaning objects, and the index determination methods involved in the examples are as follows: (1) Cleanliness: Since the dirt on the surface of each eggshell is unevenly distributed, the cleanliness of a single egg is not enough to reflect the cleaning effect of the special cleaning agent for poultry eggs. Therefore, the embodiment of the present invention is designed to reflect the cleaning effect of the cleaning agent by the cleanliness of the whole bucket of eggs. The calculation formula for the cleanliness of the whole bucket of eggs is as follows: Where G is the cleanliness level of the whole bucket of eggs; i is the cleanliness level of each egg, i=1,2,3,4,5; ni is the number of eggs with cleanliness level i; N is the total number of eggs in each bucket; The cleanliness grade of each egg is determined by sensory evaluation, and the grade classification standard is: Level 1 (Extraordinary Clean): There is no dirt visible to the naked eye on the eggshell surface, and the surface is glossy; Level 2 (very clean): There is no visible dirt on the eggshell surface; Level 3 (clean): There are 1-3 pinpoint dirt spots on the eggshell surface; Level 4 (not clean enough): There are 1-3 rice-sized dirt on the eggshell surface; Level 5 (unclean): There is more than one piece of flaky dirt on the eggshell surface.

[0032] (2) Eggshell strength measurement: The eggs were placed vertically in a plastic egg tray and the top (small end) and bottom (large end) of the eggshell were pierced with a P / 2N probe under the following conditions; the pre-test speed, test speed and post-test speed were 10 mm / s, 1.0 mm / s and 2.0 mm / s, respectively. The test distance was 5.0 mm and the trigger force was 20 g. The force required to pierce the eggshell was the eggshell strength (kgf). Three eggs were measured in each treatment group and the average value was taken.

[0033] (3) Sterilization rate of Escherichia coli, Staphylococcus aureus and Salmonella: The detection of E. coli refers to GB 4789.3-2016 "National Food Safety Standard Food Microbiology Examination Coliform Count"; The detection of Staphylococcus aureus refers to GB 4789.10-2016 "National Food Safety Standard Food Microbiology Test Staphylococcus aureus Test"; The detection of Salmonella refers to GB 4789.4-2024 "National Food Safety Standard Food Microbiology Inspection Salmonella Inspection"; The sterilization rate was calculated based on the determination results of Escherichia coli, Staphylococcus aureus and Salmonella on the egg surface before and after washing.

[0034] The components used to prepare the special cleaning agent for poultry eggs in the following examples are all food grade.

[0035] Example 1 Since the contents of four components in the special cleaning agent for poultry eggs, namely, sodium linear alkylbenzene sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate, sodium carbonate and sodium tripolyphosphate, have a great influence on the cleaning effect and eggshell strength of the cleaning agent, this embodiment is mainly used to illustrate the influence of the contents of these four components on the cleaning effect and eggshell strength of fresh eggs.

[0036] Experimental example: Preparation of special cleaning agent for poultry eggs: The cleaning agent components are (by mass percentage): sodium dodecylbenzene sulfonate 28%, sodium polyoxyethylene fatty alcohol ether sulfate 22%, coconut oil fatty acid diethanolamide 8%, sodium silicate 1.2%, sodium carbonate 3.5%, sodium tripolyphosphate 2%, sodium chloride 4.3%, sodium hypochlorite 8.6%, polydimethylsiloxane 0.5%, water 21.87%, alkaline protease 0.01%, alkaline lipase 0.01%, pepsin 0.005%, trypsin 0.005%; The preparation method comprises: slowly adding sodium dodecylbenzene sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate and coconut oil fatty acid diethanolamide into water in sequence, and continuously stirring during the adding process to obtain a first material; Slowly adding sodium silicate to the first material in portions to obtain a second material; Sodium tripolyphosphate, sodium carbonate, sodium chloride, and then sodium hypochlorite and polydimethylsiloxane were added to the second material in sequence. After homogenization at a pressure of 15 MPa for 20 min, the mixture was heated at a frequency of 10 kHz and an intensity of 10 W / cm 2 Ultrasonication for 2 min under the conditions of to obtain the third material; Alkaline protease, alkaline lipase, pepsin and trypsin are added to the third material, and the mixture is evenly mixed to obtain a special cleaning agent for poultry eggs.

[0037] Application method of special cleaning agent for poultry eggs: Take water with a temperature of 33°C, adjust its pH value to 9 using 1% sodium carbonate, then add 5% of the water mass of the above-mentioned special cleaning agent for poultry eggs into the water, mix well, clean the fresh eggs by spraying, and measure the indicators of the cleaned fresh eggs.

[0038] (1) Effect of sodium dodecylbenzene sulfonate content on fresh egg cleaning effect and eggshell strength On the basis of the above experimental examples, the sodium dodecylbenzene sulfonate content was set to 25%, 26%, 27%, 28%, 29%, 30% and 31%. Fresh eggs were cleaned using special egg cleaning agents with different sodium dodecylbenzene sulfonate contents. The cleanliness and eggshell strength of the fresh eggs after cleaning were measured. The measurement results are shown in Table 1.

[0039] Table 1 Cleanliness and eggshell strength of fresh eggs at different sodium dodecylbenzene sulfonate contents .

[0040] According to the results in Table 1, when the content of sodium dodecylbenzene sulfonate is 27%-29%, the special cleaning agent for poultry eggs has a good cleaning effect on fresh eggs and will not significantly reduce the strength of the eggshell.

[0041] (2) Effect of sodium sulfate content of fatty alcohol polyoxyethylene ether on the cleaning effect and eggshell strength of fresh eggs On the basis of the above experimental examples, the sodium sulfate content of fatty alcohol polyoxyethylene ether was set to 19%, 20%, 21%, 22%, 23%, 24% and 25%, and the fresh eggs were cleaned with special egg cleaning agents with different sodium sulfate contents of fatty alcohol polyoxyethylene ether. The cleanliness and eggshell strength of the fresh eggs after cleaning were measured. The measurement results are shown in Table 2.

[0042] Table 2 Cleanliness and eggshell strength test results of fresh eggs at different fatty alcohol polyoxyethylene ether sodium sulfate contents .

[0043] According to the results in Table 2, when the content of sodium sulfate of fatty alcohol polyoxyethylene ether is 21%-23%, the special cleaning agent for poultry eggs has a good cleaning effect on fresh eggs and has little effect on the strength of the eggshell.

[0044] (3) Effect of sodium carbonate content on fresh egg cleaning effect and eggshell strength Based on the above experimental examples, the sodium carbonate content was set to 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, and 5%. Fresh eggs were cleaned using special egg cleaning agents with different sodium carbonate contents. The cleanliness and eggshell strength of the fresh eggs after cleaning were measured. The measurement results are shown in Table 3.

[0045] Table 3 Cleanliness and eggshell strength of fresh eggs at different sodium carbonate contents .

[0046] According to the results in Table 3, when the sodium carbonate content is 3%-4%, the egg cleaning agent has the best cleaning effect on fresh eggs.

[0047] (4) Effect of sodium tripolyphosphate content on fresh egg cleaning effect and eggshell strength Based on the above experimental examples, the sodium tripolyphosphate content was set to 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, and 3.5%. Fresh eggs were cleaned using special egg cleaning agents with different sodium tripolyphosphate contents. The cleanliness and eggshell strength of the fresh eggs after cleaning were measured. The measurement results are shown in Table 4.

[0048] Table 4 Cleanliness and eggshell strength test results of fresh eggs at different sodium tripolyphosphate contents .

[0049] According to the results in Table 4, when the content of sodium tripolyphosphate is 1.5%-2.5%, the special cleaning agent for poultry eggs has a good cleaning effect on fresh eggs, and the egg shell still has good strength.

[0050] Example 2 This example is used to illustrate the influence of the application method of the special cleaning agent for poultry eggs on its cleaning effect and sterilization effect.

[0051] (1) Based on the experimental example in Example 1, the water temperature in the application method was set to 30°C, 31°C, 32°C, 33°C, 34°C, 35°C, 36°C, and 37°C. The cleaning degree, sterilization rate, and eggshell strength of fresh eggs at different water temperatures were measured. The measurement results are shown in Table 5.

[0052] Table 5 Results of cleaning cleanliness, sterilization rate and eggshell strength of fresh eggs at different water temperatures .

[0053] According to the test results in Table 5, it can be seen that the special cleaning agent for poultry eggs has a good cleaning effect when the water temperature is 32-35℃ during the application process, and the sterilization rate of Escherichia coli, Staphylococcus aureus and Salmonella is above 95%, and the impact on the strength of the eggshell is also small. When the water temperature exceeds 35℃, not only will the sterilization rate of various pathogens decrease significantly, but the strength of the eggshell will also decrease.

[0054] (2) Based on the experimental example of Example 1, the pH of the water in the application method was set to 8, 9, 10, 11, and 12, and the cleaning degree, sterilization rate, and eggshell strength of fresh eggs at different pH values ​​were measured. The measurement results are shown in Table 6.

[0055] Table 6 Results of cleaning cleanliness, sterilization rate and eggshell strength of fresh eggs at different pH values .

[0056] According to the test results in Table 6, it can be seen that when the pH value of water is 9-11 during the application of the special cleaning agent for poultry eggs, it not only has a good cleaning effect, but also has a sterilization rate of more than 95% for Escherichia coli, Staphylococcus aureus and Salmonella, and has little effect on the strength of eggshells. When the pH value of water is lower than 9 or higher than 11, the sterilization rate will be significantly reduced.

[0057] (3) Based on the experimental example in Example 1, the addition amount of the special cleaning agent for poultry eggs in the application method was set to 1%, 2%, 3%, 4%, 5%, 6%, 7%, and 8% of the water mass. The cleaning degree, sterilization rate, and eggshell strength of fresh eggs at different dosages were measured. The measurement results are shown in Table 6.

[0058] Table 7 Results of cleaning cleanliness, sterilization rate and eggshell strength of fresh eggs at different dosages of egg cleaning agents .

[0059] According to the test results in Table 7, it can be seen that when the amount of special cleaning agent for poultry eggs is 3%-6% of the water mass during the application process, it has a good cleaning effect, and the sterilization rate of Escherichia coli, Staphylococcus aureus and Salmonella is above 95%, and the impact on the eggshell strength is also small. When the amount of special cleaning agent for poultry eggs is less than 3%, the cleaning effect on fresh eggs is poor; if it is higher than 6%, it will have a greater impact on the eggshell strength.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A special cleaning agent for poultry eggs, characterized in that: The cleaning agent is composed of the following components in percentage by mass: 27%-29% linear alkylbenzene sulfonate, 21%-23% sodium polyoxyethylene fatty alcohol ether sulfate, 7%-9% coconut oil fatty acid diethanolamide, 1%-3% sodium tripolyphosphate, 3%-4% sodium carbonate, 4%-4.5% sodium chloride, 8%-9% sodium hypochlorite, 1%-1.4% first defoamer, 0.4%-0.6% second defoamer, 0.03%-0.05% enzyme preparation, and the rest is water.

2. The special cleaning agent for poultry eggs as claimed in claim 1, characterized in that: The linear alkylbenzene sulfonate is an alkylbenzene sulfonate having 10 to 16 carbon atoms.

3. The special cleaning agent for poultry eggs as claimed in claim 1, characterized in that: The first defoaming agent is selected from one or more of sodium silicate, polydimethylsiloxane, and polydimethylsiloxane emulsion.

4. The special cleaning agent for poultry eggs as claimed in claim 1, characterized in that: The second defoaming agent is selected from one or more of polydimethylsiloxane and polydimethylsiloxane emulsion.

5. The special cleaning agent for poultry eggs as claimed in claim 1, characterized in that: The enzyme preparations are protease and lipase.

6. The method for preparing the special cleaning agent for poultry eggs according to any one of claims 1 to 5, characterized in that: The following steps are involved: Slowly adding linear alkylbenzene sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate and coconut oil fatty acid diethanolamide to water in sequence, stirring continuously during the adding process, to obtain a first material; Slowly adding a first defoamer to the first material to obtain a second material; Sodium tripolyphosphate, sodium carbonate, and sodium chloride are sequentially added to the second material, followed by sodium hypochlorite and a second defoaming agent, and homogenization and ultrasonication are performed to obtain a third material; Add enzyme preparation to the third material and mix well.

7. The method for using the special cleaning agent for poultry eggs according to any one of claims 1 to 5, characterized in that: Add special cleaning agent for poultry eggs into the water, mix well and then clean the eggs by spraying.

8. The application method according to claim 7, characterized in that: The usage of the special cleaning agent for poultry eggs is 3%-6% of the water quality.

9. The application method according to claim 7, characterized in that: The pH value of the water is 9-11.

10. The application method according to claim 7, characterized in that: The temperature of the water is 32-35°C.

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