CN114854506A - Green composite CIP cleaning agent and preparation method and use method thereof - Google Patents

Abstract

The invention relates to a green composite CIP cleaning agent and a preparation method and a use method thereof. The green composite CIP cleaning agent is prepared from the following raw materials in percentage by weight: 1-8% of alkyl glycoside C08-10APG, 1-4% of sodium lauroyl sarcosine LS30, 1-3% of sodium fatty acid methyl ester sulfonate, 1-7% of sodium fatty alcohol-polyoxyethylene ether sulfate AES, 1-5% of dodecyl dimethyl betaine BS12, 1-6% of chelating agent, 0.1-2% of auxiliary agent, 0.1-0.5% of defoaming agent, 0-0.5% of PH regulator, 0.01-2% of bactericide and the balance of deionized water. The invention solves the problems that the cleaning process is too long in time, high in energy consumption and high in cost, the cleaning agent corrodes and damages equipment, and the generated industrial wastewater is easy to cause environmental pollution and does not accord with the green cleaning standard. The cleaning agent prepared by the invention has the characteristics of naturalness, high efficiency, low foam, greenness, environmental protection and the like.

Description

A kind of green composite CIP cleaning agent and its preparation method and using method

technical field

The invention relates to the field of chemical cleaning agents, in particular to a green composite CIP cleaning agent and a preparation method and use method thereof.

Background technique

In the modern dairy processing process, a large number of pipeline material transmission and heat exchange processes are involved, which will inevitably produce pipe wall deposits. The main components of the dirt formed in the dairy production process are sugar, fat, protein and inorganic salts. At present, the general dairy product enterprises will carry out in-situ cleaning (Cleaning In Place, CIP) on the equipment after each production, which is defined as not disassembling the equipment or components, using a certain temperature and concentration of cleaning agent through the machine and other equipment. A circulating loop, the high-speed liquid makes the equipment clean and free of scale through mechanical flushing force and chemical dissolution. The status of CIP cleaning and disinfection is closely related to product quality. Incomplete cleaning and disinfection will affect product quality, which may lead to food safety incidents caused by bacterial infection. Traditional dairy production enterprises usually use two-step cleaning with alkali and acid. Flushing (normal temperature water), conventional cleaning agents have complex cleaning processes, large water consumption, long cleaning time, large energy consumption, and difficulty in sewage treatment in production enterprises, which have a great impact on the environment. The cleaning process takes a long time, consumes a lot of energy and is expensive, and the industrial waste water produced is likely to cause environmental pollution, which does not meet the green cleaning standards.

SUMMARY OF THE INVENTION

The invention provides a green composite CIP cleaning agent and a preparation method and a using method thereof, which solves the problems that the cleaning process takes too long, energy consumption is high and the cost is expensive, the cleaning agent corrodes and damages the equipment, and the industrial waste water produced is easy to cause environmental pollution, and does not cause pollution. Technical issues in compliance with green cleaning standards.

In order to solve the above problems, one aspect of the present invention provides a green composite CIP cleaning agent, and the green composite CIP cleaning agent is prepared by the following raw materials by weight percentage:

Preferably, the chelating agent adopts one or a combination of sodium citrate or EDTA-2Na.

Preferably, the auxiliary agent is sodium carbonate.

Preferably, the defoamer is dimethyl silicone oil.

Preferably, the bactericide is methylisothiazolinone.

Preferably, the pH regulator is citric acid.

The present invention also provides a preparation method of a green composite CIP cleaning agent, comprising the following steps:

S1: weigh 1-8% alkyl glycoside C08-10APG, 1-4% sodium lauroyl sarcosinate LS30, 1-3% sodium fatty acid methyl ester sulfonate, 1-7% fatty alcohol polyoxygen Sodium Vinyl Ether Sulfate AES, 1-5% Lauryl Dimethyl Betaine BS12, 1-6% Chelating Agent, 0.1-2% Auxiliary, 0.1-0.5% Defoamer, 0-0.5% PH Regulator , 0.01-2% fungicide and deionized water;

S2: Heat part of the deionized water to a constant temperature of 60-70 °C, add auxiliary agents and chelating agents and stir until the dissolution is complete, then add alkyl glycoside C08-10APG, sodium fatty acid methyl ester sulfonate, sodium lauroyl sarcosinate LS30 in turn , fatty alcohol polyoxyethylene ether sodium sulfate AES, dodecyl dimethyl betaine BS12, defoamer, stir well, add the remaining deionized water, continue to stir until the temperature drops to room temperature;

S3: Adjust the mixed solution in S2 to neutrality with a PH regulator, and add a bactericide to obtain a green composite CIP cleaning agent.

The present invention also provides a method for using the green composite CIP cleaning agent, comprising:

The green composite CIP cleaning agent can be used after being diluted with water, wherein the weight ratio of the green composite CIP cleaning agent and water is 1:10-100;

The use temperature of the green composite CIP cleaning agent is 40-60°C.

The green composite CIP cleaning agent provided by the present invention is selected from the raw materials of alkyl glycoside C08-10APG, sodium lauroyl sarcosinate LS30, sodium fatty acid methyl ester sulfonate, fatty alcohol polyoxyethylene ether sulfate sodium AES, dodecyl dimethacrylate Methyl betaine BS12, chelating agent using sodium citrate or EDTA-2Na or a combination of the two, auxiliary agent using sodium carbonate, defoaming agent using dimethicone, bactericide using methyl isothiazolinone and pH regulator Citric acid is used, and the ingredients of the product formula meet the requirements in "List of Food Disinfectant Raw Materials (Ingredients %) (2009 Edition)", national standards GB2760-2014, GB22115-2008 and GB14930.1-2015. Each component has good compatibility, good calcium soap dispersibility, mild and safe performance, and improves the washing effect in hard water. The chelating agent adopts sodium citrate or EDTA-2Na or the combination of the two, which can effectively remove calcium and magnesium ions in water. The auxiliary agent adopts sodium carbonate, which can improve the detergency of the cleaning agent. Flushing achieves the effect of saving water, and the bactericide uses methylisothiazolinone, which has long-acting antibacterial function. Therefore, the green composite CIP cleaning agent prepared by the present invention has the characteristics of naturalness, high efficiency, low foaming, greenness, environmental protection and the like. The prepared green composite CIP cleaning agent can achieve effective defoaming within 10 min. The decontamination rate is high, and the decontamination rate is above 86%. After being placed in an oven at (-5±2)°C or (40±1)°C for 24 hours, the stability is good and there is no flocculent condensation. The sterilization test is carried out after diluting 10 times, 50 times and 100 times with deionized water respectively, and the sterilization performance is good. At the same time, the invention can complete the cleaning of the CIP equipment after washing with the diluted cleaning agent, and then washing with water. The cleaning process reduces the amount of cleaning agent and water. Therefore, the cleaning time can be shortened by more than 50%, and the cleaning water can be saved by about 50%. The generated wastewater can be directly discharged. In addition, the green composite CIP cleaning agent prepared by the invention has a neutral pH value and does not corrode equipment.

Detailed ways

In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the following examples are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. If the specific conditions are not indicated in the examples, it is carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments used without the manufacturer's indication are conventional products that can be purchased from the market.

Example 1

A green composite CIP cleaning agent is prepared from the following raw materials by weight percentage:

The preparation method of the green composite CIP cleaning agent described in embodiment 1, comprises the steps:

S1: Weigh 7% alkyl glycoside C08-10APG, 1% sodium lauroyl sarcosinate LS30, 2% sodium fatty acid methyl ester sulfonate, 6% fatty alcohol polyoxyethylene ether sulfate sodium AES, 4% by weight percentage respectively Dodecyl dimethyl betaine BS12, 5% sodium citrate, 2% sodium carbonate, 0.5% dimethicone, 0.5% citric acid, 2% methylisothiazolinone and deionized water;

S2: Heat part of deionized water to a constant temperature of 60-70 °C, add sodium carbonate and sodium citrate and stir until completely dissolved, then add alkyl glycoside C08-10APG, sodium fatty acid methyl ester sulfonate, and sodium lauroyl sarcosinate in turn LS30, fatty alcohol polyoxyethylene ether sodium sulfate AES, dodecyl dimethyl betaine BS12, dimethicone, stir well, add the remaining deionized water, and continue stirring until the temperature drops to room temperature;

S3: The mixed solution in S2 is adjusted to neutrality with citric acid, and methylisothiazolinone is added to obtain a green composite CIP cleaning agent.

Example 2

A green composite CIP cleaning agent is prepared from the following raw materials by weight percentage:

The preparation method of the green composite CIP cleaning agent described in embodiment 2, comprises the steps:

S1: Weigh 8% alkyl glycoside C08-10APG, 2% sodium lauroyl sarcosinate LS30, 2% sodium fatty acid methyl ester sulfonate, 6% fatty alcohol polyoxyethylene ether sulfate sodium AES, 5% by weight percentage respectively Dodecyldimethylbetaine BS12, 1% EDTA-2Na, 2% sodium carbonate, 0.4% dimethicone, 0.3% citric acid, 1% methylisothiazolinone and deionized water;

S2: Heat part of the deionized water to a constant temperature of 60-70 °C, add sodium carbonate and EDTA-2Na and stir until the dissolution is complete, then add alkyl glycoside C08-10APG, sodium fatty acid methyl ester sulfonate, and sodium lauroyl sarcosinate in turn LS30, fatty alcohol polyoxyethylene ether sodium sulfate AES, dodecyl dimethyl betaine BS12, dimethicone, stir well, add the remaining deionized water, and continue stirring until the temperature drops to room temperature;

S3: The mixed solution in S2 is adjusted to neutrality with citric acid, and methylisothiazolinone is added to obtain a green composite CIP cleaning agent.

Example 3

A green composite CIP cleaning agent is prepared from the following raw materials by weight percentage:

The preparation method of the green composite CIP cleaning agent described in embodiment 3, comprises the steps:

S1: weigh 6% alkyl glycoside C08-10APG, 3% sodium lauroyl sarcosinate LS30, 2% sodium fatty acid methyl ester sulfonate, 6% fatty alcohol polyoxyethylene ether sulfate sodium AES, 3% by weight percentage respectively Dodecyl dimethyl betaine BS12, 2% sodium citrate, 2% EDTA-2Na, 2% sodium carbonate, 0.4% dimethicone, 0.5% citric acid, 2% methylisothiazolinone and ionized water;

S2: heat part of deionized water to a constant temperature of 60-70 °C, add sodium carbonate, sodium citrate and EDTA-2Na and stir until it is completely dissolved, then add alkyl glycoside C08-10APG, sodium fatty acid methyl ester sulfonate, lauroyl in turn Sodium sarcosinate LS30, fatty alcohol polyoxyethylene ether sulfate sodium AES, dodecyl dimethyl betaine BS12, dimethicone, stir well, add the remaining deionized water, and continue to stir until the temperature drops to room temperature;

S3: The mixed solution in S2 is adjusted to neutrality with citric acid, and a bactericide is added to obtain a green composite CIP cleaning agent.

Example 4

A green composite CIP cleaning agent is prepared from the following raw materials by weight percentage:

The preparation method of the green composite CIP cleaning agent described in embodiment 4, comprises the steps:

S1: weigh 4% alkyl glycoside C08-10APG, 2% sodium lauroyl sarcosinate LS30, 3% sodium fatty acid methyl ester sulfonate, 4% fatty alcohol polyoxyethylene ether sulfate sodium AES, 5% by weight percentage respectively Dodecyl dimethyl betaine BS12, 4% sodium citrate, 1% EDTA-2Na, 2% sodium carbonate, 0.5% dimethicone, 0.5% citric acid, 1% methylisothiazolinone, and ionized water;

S2: Heat part of the deionized water to a constant temperature of 60-70 °C, add sodium carbonate, sodium citrate, and EDTA-2Na and stir until it is completely dissolved, then add alkyl glycoside C08-10APG, sodium fatty acid methyl ester sulfonate, and lauroyl in turn Sodium sarcosinate LS30, fatty alcohol polyoxyethylene ether sulfate sodium AES, dodecyl dimethyl betaine BS12, dimethicone, stir well, add the remaining deionized water, and continue to stir until the temperature drops to room temperature;

S3: The mixed solution in S2 is adjusted to neutrality with citric acid, and methylisothiazolinone is added to obtain a green composite CIP cleaning agent.

Example 5

A green composite CIP cleaning agent is prepared from the following raw materials by weight percentage:

The preparation method of the green composite CIP cleaning agent described in embodiment 5, comprises the steps:

S1: weigh 4% alkyl glycoside C08-10APG, 3% sodium lauroyl sarcosinate LS30, 3% sodium fatty acid methyl ester sulfonate, 7% fatty alcohol polyoxyethylene ether sulfate sodium AES, 3% by weight percentage respectively Dodecyl dimethyl betaine BS12, 4% sodium citrate, 1% EDTA-2Na, 2% sodium carbonate, 0.4% dimethicone, 0.4% citric acid, 2% methylisothiazolinone and des ionized water;

S2: Heat part of the deionized water to a constant temperature of 60-70 °C, add sodium carbonate, sodium citrate, and EDTA-2Na and stir until it is completely dissolved, then add alkyl glycoside C08-10APG, sodium fatty acid methyl ester sulfonate, and lauroyl in turn Sodium sarcosinate LS30, fatty alcohol polyoxyethylene ether sulfate sodium AES, dodecyl dimethyl betaine BS12, dimethicone, stir well, add the remaining deionized water, and continue to stir until the temperature drops to room temperature;

S3: The mixed solution in S2 is adjusted to neutrality with citric acid, and methylisothiazolinone is added to obtain a green composite CIP cleaning agent.

Example 6

A green composite CIP cleaning agent is prepared from the following raw materials by weight percentage:

The preparation method of the green composite CIP cleaning agent described in embodiment 6, comprises the steps:

S1: Weigh 8% alkyl glycoside C08-10APG, 1% sodium lauroyl sarcosinate LS30, 2% sodium fatty acid methyl ester sulfonate, 4% fatty alcohol polyoxyethylene ether sulfate sodium AES, 5% by weight percentage respectively Dodecyldimethylbetaine BS12, 1% EDTA-2Na, 3% sodium citrate, 1% sodium carbonate, 0.5% dimethicone, 0.3% citric acid, 2% methylisothiazolinone and des ionized water;

S2: Heat part of the deionized water to a constant temperature of 60-70 °C, add sodium carbonate, sodium citrate, and EDTA-2Na and stir until it is completely dissolved, then add alkyl glycoside C08-10APG, sodium fatty acid methyl ester sulfonate, and lauroyl in turn Sodium sarcosinate LS30, fatty alcohol polyoxyethylene ether sulfate AES, lauryl dimethyl betaine BS12, defoamer, stir well, add the remaining deionized water, and continue to stir until the temperature drops to room temperature;

S3: The mixed solution in S2 is adjusted to neutrality with citric acid, and methylisothiazolinone is added to obtain a green composite CIP cleaning agent.

The using method of the green composite CIP cleaning agent described in embodiment 1-6, comprises:

The green composite CIP cleaning agent is diluted with water and can be used, wherein the weight ratio of the green composite CIP cleaning agent and water is 1:10-100;

The use temperature of the green composite CIP cleaning agent is 40-60°C.

When cleaning the CIP equipment, first use the diluted cleaning agent at a temperature of 40-60 ℃ to clean, and then wash the CIP equipment with water.

Foam performance test:

The green composite cleaning agent prepared in Examples 1-6 was formulated into 100 mL of a solution with a mass fraction of 2%, added to a 500 mL stoppered graduated cylinder, shaken up and down evenly for 20 times, and the foam volume at 0, 5 and 10 min was measured respectively, and parallel measurements were made. Average of 3 times. The result is as follows:

0min 5min 10min Example 1 300 11 0 Example 2 312 45 9 Example 3 325 48 10 Example 4 304 16 0 Example 5 311 39 8 Example 6 295 13 0

Detergent ability test:

Scrub the stainless steel sheet (100mm×50m) with absolute ethanol, place the weighing scale m ₁ , put tin foil around it, and preheat the container to 90°C in an oven. When the container reaches the required temperature (90°C), take it. Quantitative amounts of milk are added to each container and placed back in the oven. After the milk has been air-dried on the surface, a quantitative amount of milk is added and dried again. Repeat this process to complete a total of 4 cycles. Each drying cycle took 45 minutes. Remove the foil, then rinse the dry milk container with deionized water to remove unadhered residue before drying. The meter m ₂ is weighed again. Take an appropriate amount of the prepared cleaning agent, prepare 500 mL of a dilute solution with a mass fraction of 2% in an 800 mL beaker, heat it to 40-60 ° C in a water bath, place the stainless steel sheet with the milk scale side down in the beaker, and place it in the beaker at a rate of 50 r/min under the magnetic force. Stir on a stirrer for 10 min, then place the stainless steel sheet in an oven at 60° C. to dry for 6 h, take it out and naturally cool to room temperature, and weigh again to measure m ₃ . The stain removal rate (D) is D=m ₂ -m ₃ /m ₂ -m ₁ ×100%. The green composite cleaning agent prepared by embodiment 1-6 is carried out decontamination test, and the results are as follows:

Decontamination rate Example 1 97% Example 2 90% Example 3 95% Example 4 86% Example 5 92% Example 6 95%

Stability test:

The green composite cleaning agent prepared in Examples 1-6 was placed in an oven at (-5±2)°C or (40±1)°C for 24h, or at room temperature for 1 month, and the results were as follows:

Sterilization test:

Add 0.90mL of green compound CIP cleaning agent diluted to 10, 50 and 100 times and 0.10mL of 10 ⁶ CFU/mL Escherichia coli suspension into a 1.50mL centrifuge tube with a pipette, and pipette repeatedly for 15-20 times. The Escherichia coli suspension and the cleaning agent solution were mixed evenly, and the bacterial concentration of the mixed solution was 10 ⁵ CFU/mL. Spread the liquid in the centrifuge tube on a culture plate. After the culture plate had no flowing liquid, it was inverted and placed in a constant temperature incubator at 37°C for 12 hours, and the killing rate was detected and calculated. Each group of experiments was performed in parallel three times. The results are shown in the following table:

1/10 1/50 1/100 Example 1 99.99% 98.45% 96.27% Example 2 99.27% 96.26% 93.71% Example 3 99.99% 97.19% 95.58% Example 4 98.17% 95.31% 93.55% Example 5 99.99% 98.86% 96.97% Example 6 99.99% 99.02% 97.88%

It can be seen from the above data that the green composite CIP cleaning agents prepared in Examples 1-6 can achieve effective defoaming within 10 minutes. The decontamination rate is high, and the decontamination rate is above 86%. After being placed in an oven at (-5±2)°C or (40±1)°C for 24 hours, the stability is good and there is no flocculent condensation. The sterilization test was carried out after diluting 10 times, 50 times and 100 times with deionized water respectively, and the sterilization performance was good. At the same time, after cleaning with the diluted cleaning agent, the present invention can complete the cleaning of the CIP equipment after one time of water washing. Compared with the traditional cleaning process, the consumption of cleaning agent and water is reduced. Therefore, the cleaning time can be shortened by about 50%. % or more, while saving about 50% of cleaning water. In addition, the generated wastewater can be directly discharged. In addition, the green composite CIP cleaning agent prepared by the invention has a neutral pH value and does not corrode equipment.

Claims (8)

1. a green composite CIP cleaning agent is characterized in that, described green composite CIP cleaning agent is prepared by the following raw materials by weight percentage:

2. green composite CIP cleaning agent according to claim 1, is characterized in that: described chelating agent adopts one or two combinations in sodium citrate or EDTA-2Na. 3. green composite CIP cleaning agent according to claim 1 is characterized in that: described auxiliary agent adopts sodium carbonate. 4. green composite CIP cleaning agent according to claim 1 is characterized in that: described defoamer adopts dimethyl silicone oil. 5. green composite CIP cleaning agent according to claim 1 is characterized in that: described bactericide adopts methyl isothiazolinone. 6. green composite CIP cleaning agent according to claim 1 is characterized in that: described pH regulator adopts citric acid. 7. a preparation method of the green composite CIP cleaning agent as described in any one of claim 1-6, is characterized in that, comprises the steps: S1: weigh 1-8% alkyl glycoside C08-10APG, 1-4% sodium lauroyl sarcosinate LS30, 1-3% sodium fatty acid methyl ester sulfonate, 1-7% fatty alcohol polyoxygen Sodium Vinyl Ether Sulfate AES, 1-5% Lauryl Dimethyl Betaine BS12, 1-6% Chelating Agent, 0.1-2% Auxiliary, 0.1-0.5% Defoamer, 0-0.5% PH Regulator , 0.01-2% fungicide and deionized water; S2: Heat part of the deionized water to a constant temperature of 60-70 °C, add auxiliary agents and chelating agents and stir until the dissolution is complete, then add alkyl glycoside C08-10APG, sodium fatty acid methyl ester sulfonate, sodium lauroyl sarcosinate LS30 in turn , fatty alcohol polyoxyethylene ether sodium sulfate AES, dodecyl dimethyl betaine BS12, defoamer, stir well, add the remaining deionized water, and continue to stir until the temperature drops to room temperature; S3: Adjust the mixed solution in S2 to neutrality with a PH regulator, and add a bactericide to obtain a green composite CIP cleaning agent. 8. the using method of the green composite CIP cleaning agent as described in any one of claim 1-6, is characterized in that: The green composite CIP cleaning agent can be used after being diluted with water, wherein the weight ratio of the green composite CIP cleaning agent and water is 1:10-100; The use temperature of the green composite CIP cleaning agent is 40-60°C.