CN110747071A - Fruit and vegetable pesticide residue cleaning agent and preparation method thereof - Google Patents
Fruit and vegetable pesticide residue cleaning agent and preparation method thereof Download PDFInfo
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- CN110747071A CN110747071A CN201910960455.0A CN201910960455A CN110747071A CN 110747071 A CN110747071 A CN 110747071A CN 201910960455 A CN201910960455 A CN 201910960455A CN 110747071 A CN110747071 A CN 110747071A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/825—Mixtures of compounds all of which are non-ionic
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
- A23L5/27—Removal of unwanted matter, e.g. deodorisation or detoxification by chemical treatment, by adsorption or by absorption
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/201—Monohydric alcohols linear
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/2027—Monohydric alcohols unsaturated
- C11D3/2031—Monohydric alcohols unsaturated fatty or with at least 8 carbon atoms in the alkenyl chain
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/221—Mono, di- or trisaccharides or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3719—Polyamides or polyimides
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
- C11D3/3742—Nitrogen containing silicones
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3773—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines in liquid compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/382—Vegetable products, e.g. soya meal, wood flour, sawdust
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/662—Carbohydrates or derivatives
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
Abstract
The invention belongs to the technical field of cleaning agents, and provides a cleaning agent for residual pesticides on fruits and vegetables and a preparation method thereof. The fruit and vegetable residual pesticide cleaning agent comprises 5-20 parts of tea seed powder, 3-15 parts of modified corn starch, 0.1-1 part of artemisia argyi extract, 0.5-3 parts of poly-N-isopropylacrylamide, 3-10 parts of poloxamer, 1-5 parts of sucrose fatty acid ester, 0.5-3 parts of olive oil alcohol, 1-7 parts of sodium gluconate, 1-5 parts of sodium polyaspartate, 1-5 parts of alkyl glucoside, 0.5-3 parts of potassium citrate, 0.5-1 part of ethanol and 70-100 parts of water, and the preparation method comprises the steps of mixing the tea seed powder, the modified corn starch and the artemisia argyi extract, crushing the mixture, sieving the mixture by a 300-mesh sieve to obtain a powdery mixture, adding the poloxamer into water, dissolving the other components in a formula, and heating and stirring to obtain a mixed solution; and adding the powdery mixture into the mixed solution, heating and stirring, and homogenizing to obtain the fruit and vegetable pesticide residue cleaning agent. Through the technical scheme, the problem that the effect of removing residual pesticides on the surfaces of fruits and vegetables by using the detergent in the prior art is not good is solved.
Description
Technical Field
The invention belongs to the technical field of cleaning agents, and relates to a cleaning agent for residual pesticides on fruits and vegetables and a preparation method thereof.
Background
Pesticides such as pesticide are often used to control the growth of fruits, vegetables and other crops. When the pesticide is applied, the utilization rate of the pesticide is low, the pesticide which is adhered to the surface of crops and has the functions of killing insects and killing bacteria accounts for a small part of the used pesticide, most of the pesticide directly falls into the soil, and the rest of the pesticide is scattered into the air in the form of fine particles. Although the residual quantity of the pesticide can be gradually reduced through volatilization, diffusion, migration, adsorption and degradation, the pesticide used in successive years will pollute the atmosphere, water, soil, crops and environmental organisms, thereby causing the pesticide residue in the food.
Since most fruits and vegetables are eaten when fresh, residual pesticides adsorbed on the fruits and vegetables are seriously harmful to human bodies. In order to reduce the harm of pesticide residue to human bodies in actual life, vegetables and fruits are generally washed by detergent. However, the efficiency of removing pesticide residues on the surfaces of fruits and vegetables by using the existing detergent is not high, and meanwhile, the washed pesticides can flow to a sewer along with water, so that secondary pollution to the environment is caused.
Disclosure of Invention
The invention provides a fruit and vegetable pesticide residue cleaning agent and a preparation method thereof, and solves the problem that in the prior art, a detergent has a poor effect of removing pesticide residues on the surfaces of fruits and vegetables.
The technical scheme of the invention is realized as follows:
the fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
5-20 parts of tea seed powder, 3-15 parts of modified corn starch, 0.1-1 part of a mugwort extract, 0.5-3 parts of poly-N-isopropylacrylamide, 3-10 parts of poloxamer, 1-5 parts of sucrose fatty acid ester, 0.5-3 parts of olive oil alcohol, 1-7 parts of sodium gluconate, 1-5 parts of sodium polyaspartate, 1-5 parts of alkyl glucoside, 0.5-3 parts of potassium citrate, 0.5-1 part of ethanol and 70-100 parts of water.
As a further technical scheme, the paint comprises the following components in parts by weight:
13 parts of tea seed powder, 9 parts of modified corn starch, 0.5 part of artemisia argyi extract, 1.8 parts of poly-N-isopropylacrylamide, 6 parts of poloxamer, 3 parts of sucrose fatty acid ester, 1.6 parts of olive oil alcohol, 4 parts of sodium gluconate, 3 parts of sodium polyaspartate, 3 parts of alkyl glucoside, 1.6 parts of potassium citrate, 0.8 part of ethanol and 85 parts of water.
As a further technical scheme, the modified corn starch consists of the following components in parts by weight:
10-30 parts of corn starch, 5-13 parts of aminopropyl isobutyl silsesquioxane, 2-8 parts of citric acid, 0.1-0.5 part of a silane coupling agent and 25-40 parts of water.
As a further technical scheme, the modified corn starch consists of the following components in parts by weight:
20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of a silane coupling agent and 33 parts of water.
As a further technical scheme, the preparation method of the modified corn starch comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain the modified corn starch.
As a further technical scheme, the mugwort extract is prepared by crushing mugwort, extracting with water, purifying with CAD-40 type macroporous adsorption resin, eluting with ethanol, concentrating and drying.
The invention also provides a preparation method of the fruit and vegetable pesticide residue cleaning agent, which comprises the following steps:
s1, weighing the components according to the formula of the fruit and vegetable pesticide residue cleaning agent for later use;
s2, mixing and crushing the tea seed powder, the modified corn starch and the artemisia argyi extract, and sieving the mixture through a 300-mesh sieve to obtain a powdery mixture;
s3, adding poloxamer into water, dissolving, adding sucrose fatty acid ester, olive oil alcohol, sodium gluconate, sodium polyaspartate, ethanol, alkyl glucoside and potassium citrate, and heating and stirring to obtain a mixed solution;
s4, adding the powdery mixture obtained in the step S2 into the mixed liquid obtained in the step S3, adding poly N-isopropylacrylamide and ethanol, and heating and stirring to obtain a mixed material;
and S5, homogenizing the mixed material obtained in the step S4 to obtain the fruit and vegetable pesticide residue cleaning agent.
As a further technical scheme, the heating and stirring in the step S3 is specifically heating to 50-60 ℃, and stirring for 20min under heat preservation.
As a further technical scheme, the heating and stirring in the step S4 is specifically heating to 55-60 ℃, and stirring for 15-20 min under heat preservation.
As a further technical scheme, in the step S5, the homogenization is carried out for 30min at the speed of 2000-2500 r/min.
The working principle and the beneficial effects of the invention are as follows:
1. according to the invention, the fruit and vegetable pesticide residue cleaning agent obtained by the specific formula and the preparation method has a good effect of removing pesticide residues in fruits and vegetables, the removal rate of chlorothalonil residues in cucumbers is up to 98.77%, the removal rate of flubendiamide residues in leaf lettuce is up to 97.63%, and the problem of poor effect of removing pesticide residues on the surfaces of fruits and vegetables by using the detergent in the prior art is effectively solved. The fruit and vegetable pesticide residue cleaning agent has good stability, has no precipitation and discoloration after being stored for 24 hours at the low temperature of minus 5 +/-2 ℃, has no peculiar smell, layering, discoloration and turbidity after being stored for 24 hours at the high temperature of 40 +/-1 ℃, and has long storage time.
2. According to the fruit and vegetable pesticide residue cleaning agent, the tea seed powder and the folium artemisiae argyi extract are added into the raw materials of the fruit and vegetable pesticide residue cleaning agent, the tea seed powder and the folium artemisiae argyi extract are matched with each other, a better antibacterial effect can be achieved, the natural tea saponin rich in the tea seed powder has the effects of sterilization and detoxification, flavonoid compounds contained in the folium artemisiae argyi extract have an antibacterial effect, and the tea seed powder and the folium artemisiae argyi extract are matched with each other, so that the antibacterial and detoxification effects of the fruit and vegetable pesticide residue cleaning agent are remarkably improved, the microbial inspection result of the prepared fruit and vegetable pesticide residue cleaning agent is enabled to meet the standard requirements, and therefore the.
3. According to the invention, the sodium gluconate, the poloxamer and the sucrose fatty acid ester are added into the raw materials of the fruit and vegetable residual pesticide cleaning agent, the sodium gluconate, the poloxamer and the sucrose fatty acid ester are matched with each other and contain two groups of hydrophilic and lipophilic groups, and an adsorption layer is formed in the hydrophilic phase of the sodium polyaspartate, the poly N-isopropylacrylamide, the tea seed powder and the modified corn starch and the lipophilic phase interface of the tea seed powder, the modified corn starch and the mugwort extract to combine the two phases, so that the interface compatibility of the two phases is improved, the prepared fruit and vegetable residual pesticide cleaning agent is more stable when being placed at high and low temperatures, the service life of the fruit and vegetable residual pesticide cleaning agent is prolonged, the storage time is long, and the fruit and vegetable residual pesticide cleaning agent is.
4. In the invention, the modified corn starch, the tea seed powder, the sodium polyaspartate and the poly-N-isopropylacrylamide are obviously matched, so that the pesticide residue removing effect of the fruit and vegetable pesticide residue cleaning agent is obviously improved. Firstly, citric acid and aminopropyl isobutyl silsesquioxane are adopted to modify corn starch, the crosslinking property of the corn starch is improved, the prepared modified corn starch has a better coating effect on the residual pesticides on fruits and vegetables, sodium polyaspartate and poly-N-isopropylacrylamide have hydrogen bonds, anionic groups and cationic groups, the residual pesticides in the fruits and vegetables have a good adsorption effect through intermolecular force and electrostatic action, meanwhile, the sodium polyaspartate, the poly-N-isopropylacrylamide and the sodium citrate are compatible and have a good complexing effect on heavy metals in the pesticides, tea saponin contained in tea seed powder has a decomposition effect on the residual pesticides in the fruits and vegetables, and the alkaline environment provided by the sodium polyaspartate, the poly-N-isopropylacrylamide and the potassium citrate obviously improves the removal effect of the modified corn starch, the tea seed powder and the like on the residual pesticides in the fruits and vegetables, therefore, the modified corn starch and the tea seed powder, the sodium polyaspartate and the poly-N-isopropylacrylamide are compatible with each other, so that the effect of obvious synergism is achieved, and the prepared fruit and vegetable pesticide residue cleaning agent has an obvious effect of removing residual pesticides in fruits and vegetables.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
5 parts of tea seed powder, 3 parts of modified corn starch, 0.1 part of artemisia argyi extract, 0.5 part of poly-N-isopropylacrylamide, 3 parts of poloxamer, 1 part of sucrose fatty acid ester, 0.5 part of olive oil alcohol, 1 part of sodium gluconate, 1 part of sodium polyaspartate, 1 part of alkyl glucoside, 0.5 part of potassium citrate, 0.5 part of ethanol and 70 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of silane coupling agent and 33 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method comprises the following steps:
s1, weighing the components according to the formula of the fruit and vegetable pesticide residue cleaning agent for later use;
s2, mixing and crushing the tea seed powder, the modified corn starch and the artemisia argyi extract, and sieving the mixture through a 300-mesh sieve to obtain a powdery mixture;
s3, adding poloxamer into water, dissolving, adding sucrose fatty acid ester, olive oil alcohol, sodium gluconate, sodium polyaspartate, ethanol, alkyl glucoside and potassium citrate, heating to 50-60 ℃, and keeping the temperature and stirring for 20min to obtain a mixed solution;
s4, adding the powdery mixture obtained in the step S2 into the mixed liquid obtained in the step S3, adding poly-N-isopropylacrylamide and ethanol, heating to 55-60 ℃, keeping the temperature, and stirring for 15-20 min to obtain a mixed material;
s5, homogenizing the mixed material obtained in the step S4 at a speed of 2000-2500 r/min for 30min to obtain the fruit and vegetable pesticide residue cleaning agent.
Example 2
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
20 parts of tea seed powder, 15 parts of modified corn starch, 1 part of a mugwort extract, 3 parts of poly-N-isopropylacrylamide, 10 parts of poloxamer, 5 parts of sucrose fatty acid ester, 3 parts of olive oil alcohol, 7 parts of sodium gluconate, 5 parts of sodium polyaspartate, 5 parts of alkyl glucoside, 3 parts of potassium citrate, 1 part of ethanol and 100 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of silane coupling agent and 33 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of example 1.
Example 3
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
10 parts of tea seed powder, 7 parts of modified corn starch, 0.3 part of artemisia argyi extract, 1.5 parts of poly-N-isopropylacrylamide, 5 parts of poloxamer, 2 parts of sucrose fatty acid ester, 1.3 parts of olive oil alcohol, 3 parts of sodium gluconate, 2 parts of sodium polyaspartate, 2 parts of alkyl glucoside, 1.2 parts of potassium citrate, 0.7 part of ethanol and 80 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of silane coupling agent and 33 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of example 1.
Example 4
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
17 parts of tea seed powder, 11 parts of modified corn starch, 0.7 part of artemisia argyi extract, 2.1 parts of poly-N-isopropylacrylamide, 8 parts of poloxamer, 4 parts of sucrose fatty acid ester, 2.1 parts of olive oil alcohol, 5 parts of sodium gluconate, 4 parts of sodium polyaspartate, 4 parts of alkyl glucoside, 2.3 parts of potassium citrate, 0.9 part of ethanol and 90 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of silane coupling agent and 33 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of example 1.
Example 5
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
13 parts of tea seed powder, 9 parts of modified corn starch, 0.5 part of artemisia argyi extract, 1.8 parts of poly-N-isopropylacrylamide, 6 parts of poloxamer, 3 parts of sucrose fatty acid ester, 1.6 parts of olive oil alcohol, 4 parts of sodium gluconate, 3 parts of sodium polyaspartate, 3 parts of alkyl glucoside, 1.6 parts of potassium citrate, 0.8 part of ethanol and 85 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of silane coupling agent and 33 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of example 1.
Example 6
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
13 parts of tea seed powder, 9 parts of modified corn starch, 0.5 part of artemisia argyi extract, 1.8 parts of poly-N-isopropylacrylamide, 6 parts of poloxamer, 3 parts of sucrose fatty acid ester, 1.6 parts of olive oil alcohol, 4 parts of sodium gluconate, 3 parts of sodium polyaspartate, 3 parts of alkyl glucoside, 1.6 parts of potassium citrate, 0.8 part of ethanol and 85 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 10 parts of corn starch, 5 parts of aminopropyl isobutyl silsesquioxane, 2 parts of citric acid, 0.1 part of silane coupling agent and 25 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of example 1.
Example 7
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
13 parts of tea seed powder, 9 parts of modified corn starch, 0.5 part of artemisia argyi extract, 1.8 parts of poly-N-isopropylacrylamide, 6 parts of poloxamer, 3 parts of sucrose fatty acid ester, 1.6 parts of olive oil alcohol, 4 parts of sodium gluconate, 3 parts of sodium polyaspartate, 3 parts of alkyl glucoside, 1.6 parts of potassium citrate, 0.8 part of ethanol and 85 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 30 parts of corn starch, 13 parts of aminopropyl isobutyl silsesquioxane, 8 parts of citric acid, 0.5 part of silane coupling agent and 40 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of example 1.
Comparative example 1
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
13 parts of tea seed powder, 9 parts of corn starch, 0.5 part of artemisia argyi extract, 1.8 parts of poly-N-isopropylacrylamide, 6 parts of poloxamer, 3 parts of sucrose fatty acid ester, 1.6 parts of olive oil alcohol, 4 parts of sodium gluconate, 3 parts of sodium polyaspartate, 3 parts of alkyl glucoside, 1.6 parts of potassium citrate, 0.8 part of ethanol and 85 parts of water;
wherein the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of example 1 except that the modified corn starch in step S2 is changed into corn starch.
Comparative example 2
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
9 parts of modified corn starch, 1.8 parts of poly-N-isopropylacrylamide, 6 parts of poloxamer, 3 parts of sucrose fatty acid ester, 1.6 parts of olive oil alcohol, 4 parts of sodium gluconate, 3 parts of sodium polyaspartate, 3 parts of alkyl glucoside, 1.6 parts of potassium citrate, 0.8 part of ethanol and 85 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of silane coupling agent and 33 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of the example 1 except that the tea seed powder and the mugwort extract in the step 2 are correspondingly deleted.
Comparative example 3
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
13 parts of tea seed powder, 9 parts of modified corn starch, 0.5 part of artemisia argyi extract, 6 parts of poloxamer, 3 parts of sucrose fatty acid ester, 1.6 parts of olive oil alcohol, 4 parts of sodium gluconate, 3 parts of alkyl glucoside, 1.6 parts of potassium citrate, 0.8 part of ethanol and 85 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of silane coupling agent and 33 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of example 1 except that the sodium polyaspartate and the poly-N-isopropylacrylamide in the step S3 are removed.
Comparative example 4
The fruit and vegetable pesticide residue cleaning agent comprises the following components in parts by weight:
13 parts of tea seed powder, 9 parts of modified corn starch, 0.5 part of artemisia argyi extract, 1.8 parts of poly-N-isopropylacrylamide, 1.6 parts of olive oil alcohol, 3 parts of sodium polyaspartate, 3 parts of alkyl glucoside, 1.6 parts of potassium citrate, 0.8 part of ethanol and 85 parts of water;
wherein the modified corn starch consists of the following components in parts by weight: 20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of silane coupling agent and 33 parts of water, wherein the preparation method comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain modified corn starch; the folium Artemisiae Argyi extract is prepared by pulverizing folium Artemisiae Argyi, extracting with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying;
the preparation method is the same as that of example 1 except that the sodium gluconate, the poloxamer and the sucrose fatty acid ester in step S3 are deleted correspondingly.
The following performance tests were performed on the fruit and vegetable pesticide residue cleaning agents prepared in examples 1 to 7 and comparative examples 1 to 4:
(1) microbial detection
Total number of colonies: the total number of colonies of the sample was tested according to the test method specified in GB/T4789.2-2016 "determination of total number of colonies for food hygiene microbiological examination";
coliform group bacteria: testing the coliform of the sample according to a testing method specified in GB/T4789.3-2016 (national food safety Standard food microbiology inspection coliform count);
the results of the measurements are shown in the following table:
TABLE 1 stability of the fruit and vegetable pesticide residue cleaners prepared in examples 1-7 and comparative examples 1-4
As can be seen from the data in Table 1, the microbial test of the fruit and vegetable pesticide residue cleaning agent prepared in the embodiment 1-7 meets the standard, and is safe and reliable. The fruit and vegetable pesticide residue cleaning agent of the comparative examples 1-4 has relatively poor microbial inspection results, wherein the fruit and vegetable pesticide residue cleaning agent of the comparative example 2 has the worst microbial inspection result, because the tea seed powder and the mugwort extract are not added in the raw material formula of the fruit and vegetable pesticide residue cleaning agent of the comparative example 2, the tea seed powder and the mugwort extract are mutually matched, a better antibacterial effect can be exerted, the natural tea saponin rich in the tea seed powder has the effects of sterilization and detoxification, the flavonoid compound contained in the mugwort extract has the antibacterial effect, and the tea seed powder and the mugwort extract are mutually compatible, so that the antibacterial and detoxification effects of the fruit and vegetable pesticide residue cleaning agent are remarkably improved, the microbial inspection result of the prepared fruit and vegetable pesticide residue cleaning agent is more in line with the standard requirement, and therefore, the fruit and vegetable pesticide residue cleaning agent is safer and.
(2) Stability: testing the stability of the fruit and vegetable cleaning agent according to a test method specified in GB/T24691-one 2009-fruit and vegetable cleaning agent; during testing, the test sample is placed in a refrigerator at minus 5 +/-2 ℃ for 24 hours, and is taken out to be recovered to room temperature, and whether precipitation and discoloration phenomena exist or not is observed; placing the test sample in a heat preservation box with the temperature of 40 +/-1 ℃ for 24h, taking out the test sample and recovering to room temperature to observe whether the phenomena of peculiar smell, layered discoloration and turbidity exist, wherein the test results are shown in the following table:
TABLE 2 stability of the fruit and vegetable pesticide residue cleaners prepared in examples 1-7 and comparative examples 1-4
| Item | -5℃±2℃ | 40℃±1℃ |
| Example 1 | No precipitation and discoloration | No foreign taste, layering, discoloration and turbidity |
| Example 2 | No precipitation and discoloration | No foreign taste, layering, discoloration and turbidity |
| Example 3 | No precipitation and discoloration | No foreign taste, layering, discoloration and turbidity |
| Example 4 | No precipitation and discoloration | No foreign taste, layering, discoloration and turbidity |
| Example 5 | No precipitation and discoloration | No foreign taste, layering, discoloration and turbidity |
| Example 6 | No precipitation and discoloration | No peculiar smell, layering, color change and turbidityElephant |
| Example 7 | No precipitation and discoloration | No foreign taste, layering, discoloration and turbidity |
| Comparative example 1 | No precipitation and discoloration | No foreign taste, layering, discoloration and turbidity |
| Comparative example 2 | No precipitation and discoloration | No foreign taste, layering, discoloration and turbidity |
| Comparative example 3 | No precipitation and discoloration | No foreign taste, layering, discoloration and turbidity |
| Comparative example 4 | Slightly precipitated out | Has turbidity phenomenon |
As can be seen from the data in Table 2, the fruit and vegetable pesticide residue cleaning agent prepared in examples 1-7 has good stability, no precipitation and discoloration phenomena after being stored at the low temperature of minus 5 ℃ plus or minus 2 ℃ for 24 hours, and no odor, delamination, discoloration and turbidity phenomena after being stored at the high temperature of 40 ℃ plus or minus 1 ℃ for 24 hours. The fruit and vegetable residual pesticide cleaning agent in the comparative example 4 is slightly precipitated after being stored at a low temperature of minus 5 +/-2 ℃ for 24 hours, and has a turbidity phenomenon after being stored at a high temperature of 40 +/-1 ℃ for 24 hours, which indicates that the fruit and vegetable residual pesticide cleaning agent in the comparative example 4 has poor stability, because sodium gluconate, poloxamer and sucrose fatty acid ester are not added in the raw materials of the fruit and vegetable residual pesticide cleaning agent in the comparative example 4, the sodium gluconate, the poloxamer and the sucrose fatty acid ester are mutually matched and contain two groups of hydrophilic and lipophilic, and an adsorption layer is formed in the hydrophilic phase of the sodium polyaspartate, the poly N-isopropylacrylamide, the tea seed powder, the modified corn starch and the lipophilic phase interface of the tea seed powder, the modified corn starch and the artemisia argyi extract to combine the two phases, so that the interface compatibility of the two phases is improved, and the prepared fruit and vegetable residual pesticide cleaning agent is more stable under the high and low temperature, further, the service life of the cleaning agent for the residual pesticides on the fruits and vegetables is prolonged, the storage time is long, and the cleaning agent is suitable for popularization and application.
(3) Residual pesticide removing effect
Respectively and uniformly spraying 1000 times of chlorothalonil solution on 11 cucumbers, standing for 3 days, testing the pesticide residue in each cucumber, then respectively placing the 11 cucumbers into 2000 times of pesticide residue disinfectant prepared in examples 1-7 and comparative examples 1-4, soaking for 10min, taking out, rinsing with clean water, testing the pesticide residue in each cucumber after being dried in the air, and calculating the pesticide residue removal rate;
respectively and uniformly spraying 1000 times of fipronil on 11 leaf lettuce, standing for 3 days, testing the pesticide residue in each leaf lettuce, then respectively placing the 11 leaf lettuce in 2000 times of pesticide residue disinfectant prepared in examples 1-7 and comparative examples 1-4, soaking for 10min, taking out, rinsing with clean water, air drying, testing the pesticide residue in each leaf lettuce after cleaning, and calculating the pesticide residue removal rate;
the method for testing the pesticide residue refers to the regulation in NY/T761-2008 'determination of organophosphorus, organochlorine, pyrethroid and carbamate pesticide residue in vegetables and fruits', and the test results are shown in the following table:
TABLE 3 residual pesticide removing effect of fruit and vegetable residual pesticide cleaning agent prepared in examples 1 to 7 and comparative examples 1 to 4
As can be seen from the data in Table 3, the removal rate of the fruit and vegetable pesticide residue cleaning agent prepared in examples 1 to 7 on chlorothalonil residue in cucumber is as high as 98.77%, and the pesticide residue of leaf lettuce is higher than that of cucumber, but the removal rate of the fruit and vegetable pesticide residue cleaning agent prepared in examples 1 to 7 on flubendiamide residue in leaf lettuce is 97.63%, so that an unexpected effect is achieved. The fruit and vegetable pesticide residue cleaning agent of comparative examples 1-4 has a poor effect of removing pesticide residues, wherein the effect of comparison 1-3 is relatively poor, the modified corn starch is replaced by the corn starch in the fruit and vegetable pesticide residue cleaning agent raw material of comparative example 1, the tea seed powder and the wormwood extract are not added in the fruit and vegetable pesticide residue cleaning agent raw material of comparative example 2, and the sodium polyaspartate and the poly N-isopropylacrylamide are not added in the fruit and vegetable pesticide residue cleaning agent raw material of comparative example 3, so that the modified corn starch, the tea seed powder, the sodium polyaspartate and the poly N-isopropylacrylamide are obviously matched, and the pesticide residue removing effect of the fruit and vegetable pesticide residue cleaning agent is obviously improved. Firstly, the corn starch is modified by citric acid and aminopropyl isobutyl silsesquioxane, the crosslinking property of the corn starch is improved, the prepared modified corn starch has a better coating effect on the residual pesticides on fruits and vegetables, the sodium polyaspartate and the poly-N-isopropylacrylamide have hydrogen bonds, anionic groups and cationic groups, the residual pesticides in the fruits and vegetables also have a good adsorption effect through intermolecular force and electrostatic action, meanwhile, the sodium polyaspartate, the poly-N-isopropylacrylamide and the sodium citrate are compatible and have a good complexing effect on heavy metals in the pesticides, the tea saponin contained in the tea seed powder has a decomposition effect on the residual pesticides in the fruits and vegetables, and the alkaline environment provided by the sodium polyaspartate, the poly-N-isopropylacrylamide and the potassium citrate obviously improves the removal effect of the modified corn starch, the tea seed powder and the like on the residual pesticides in the fruits and vegetables, therefore, the modified corn starch and the tea seed powder, the sodium polyaspartate and the poly-N-isopropylacrylamide are compatible with each other, so that the effect of obvious synergism is achieved, and the prepared fruit and vegetable pesticide residue cleaning agent has an obvious effect of removing residual pesticides in fruits and vegetables.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The cleaning agent for the residual pesticide on the fruits and vegetables is characterized by comprising the following components in parts by weight:
5-20 parts of tea seed powder, 3-15 parts of modified corn starch, 0.1-1 part of a mugwort extract, 0.5-3 parts of poly-N-isopropylacrylamide, 3-10 parts of poloxamer, 1-5 parts of sucrose fatty acid ester, 0.5-3 parts of olive oil alcohol, 1-7 parts of sodium gluconate, 1-5 parts of sodium polyaspartate, 1-5 parts of alkyl glucoside, 0.5-3 parts of potassium citrate, 0.5-1 part of ethanol and 70-100 parts of water.
2. The fruit and vegetable pesticide residue cleaning agent according to claim 1, which is characterized by comprising the following components in parts by weight:
13 parts of tea seed powder, 9 parts of modified corn starch, 0.5 part of artemisia argyi extract, 1.8 parts of poly-N-isopropylacrylamide, 6 parts of poloxamer, 3 parts of sucrose fatty acid ester, 1.6 parts of olive oil alcohol, 4 parts of sodium gluconate, 3 parts of sodium polyaspartate, 3 parts of alkyl glucoside, 1.6 parts of potassium citrate, 0.8 part of ethanol and 85 parts of water.
3. The fruit and vegetable pesticide residue cleaning agent according to claim 1, wherein the modified corn starch comprises the following components in parts by weight:
10-30 parts of corn starch, 5-13 parts of aminopropyl isobutyl silsesquioxane, 2-8 parts of citric acid, 0.1-0.5 part of a silane coupling agent and 25-40 parts of water.
4. The fruit and vegetable pesticide residue cleaning agent according to claim 3, wherein the modified corn starch comprises the following components in parts by weight:
20 parts of corn starch, 8 parts of aminopropyl isobutyl silsesquioxane, 5 parts of citric acid, 0.3 part of a silane coupling agent and 33 parts of water.
5. The fruit and vegetable pesticide residue cleaning agent according to claim 3 or 4, wherein the preparation method of the modified corn starch comprises the following steps: dissolving a silane coupling agent in water, sequentially adding citric acid, corn starch and aminopropyl isobutyl silsesquioxane, uniformly mixing, reacting at 120-150 ℃ for 1h, cooling the reaction solution to room temperature, and freeze-drying to obtain the modified corn starch.
6. The cleaning agent for fruit and vegetable pesticide residues as claimed in claim 1, wherein the mugwort extract is obtained by pulverizing mugwort, leaching with water, purifying with CAD-40 type macroporous adsorbent resin, eluting with ethanol, concentrating, and drying.
7. The preparation method of the fruit and vegetable pesticide residue cleaning agent is characterized by comprising the following steps:
s1, weighing all components for later use according to the formula of the fruit and vegetable pesticide residue cleaning agent as claimed in any one of claims 1 to 6;
s2, mixing and crushing the tea seed powder, the modified corn starch and the artemisia argyi extract, and sieving the mixture through a 300-mesh sieve to obtain a powdery mixture;
s3, adding poloxamer into water, dissolving, adding sucrose fatty acid ester, olive oil alcohol, sodium gluconate, sodium polyaspartate, ethanol, alkyl glucoside and potassium citrate, and heating and stirring to obtain a mixed solution;
s4, adding the powdery mixture obtained in the step S2 into the mixed liquid obtained in the step S3, adding poly N-isopropylacrylamide and ethanol, and heating and stirring to obtain a mixed material;
and S5, homogenizing the mixed material obtained in the step S4 to obtain the fruit and vegetable pesticide residue cleaning agent.
8. The preparation method of the fruit and vegetable pesticide residue cleaning agent according to claim 7, wherein the heating and stirring in the step S3 is heating to 50-60 ℃, and stirring for 20min with heat preservation.
9. The preparation method of the fruit and vegetable pesticide residue cleaning agent according to claim 7, wherein the heating and stirring in the step S4 is heating to 55-60 ℃, and stirring for 15-20 min under heat preservation.
10. The preparation method of the fruit and vegetable pesticide residue cleaning agent according to claim 7, wherein in the step S5, the homogenization is carried out at a speed of 2000-2500 r/min for 30 min.
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| CN110638673A (en) * | 2019-09-25 | 2020-01-03 | 河北瑞龙生物科技有限公司 | Skin care product containing green tea extract and preparation method thereof |
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| CN107629892A (en) * | 2017-08-17 | 2018-01-26 | 深圳市科霖洁生物科技有限公司 | A kind of fruits and vegetables cleaning powder and preparation method thereof |
| CN109749874A (en) * | 2017-11-06 | 2019-05-14 | 慈溪市亿邦机械有限公司 | A kind of fruits and vegetables cleaning agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105950312A (en) * | 2016-05-20 | 2016-09-21 | 西安文理学院 | Fruit and vegetable pesticide residue detergent and preparation method thereof |
| CN107629892A (en) * | 2017-08-17 | 2018-01-26 | 深圳市科霖洁生物科技有限公司 | A kind of fruits and vegetables cleaning powder and preparation method thereof |
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