LU502658B1 - Insect repellent water for solenopsis invicta and preparation method thereof - Google Patents

Abstract

The invention discloses an insect repellent water for solenopsis invicta, which is characterized by comprising the following raw materials in percentage by mass: 0.01%~10% of mixed Cinnamomum cassia Presl essential oil, 1%~10% of emulsifier and the balance of water; among them, the mixed Cinnamomum cassia Presl essential oil is a mixture composed of Vietnamese Cinnamomum cassia Presl bark essential oil and cinnamyl acetate with a mass ratio of 5~45:4. The preparation method comprises: (1) weighing all raw materials; (2) adding cinnamyl acetate into Vietnamese Cinnamomum cassia Presl essential oil bark, and magnetically stirring to obtain mixed Cinnamomum cassia Presl essential oil for later use; (3) adding emulsifier into water and magnetically stirring to obtain emulsifier aqueous solution; (4) adding the mixed Cinnamomum cassia Presl essential oil into the emulsifier aqueous solution, and magnetically stirring to obtain the insect repellent water for solenopsis invicta.

Description

Description LU502658

Insect repellent water for solgnopsis invicig and preparation method thereof

Technical field

The invention relates to the technical field of insecticides, and relates to insect repellent water, in particular to an insect repellent water for sofenopsis invicta and the preparation method thereof.

Background

Solenopsis invicha, as cue of the "100 most harmful invasive organısma in the world", bas spread all over the world since it invaded the United States from South America in the 1930s.

Since il was discovered in China, it has attracted great attention from relevant parties. On

January 17th, 2005, the Ministry of Agriculture announced that sofenopsis Invicia was designated as an imported plant quarantine pest of the People's Republic of China and a national plant quarantine pest.

Solenopris invicios can use and colonize human beings and living environment, and are more aggressive than other ants. After they bite humans, it not only brings a strong tingling sensation, but also causes strong burns and itching and then forms blisters and white pustules because there are high-concentration toxins in their venom, ruptured or bruised pustules can cause secondary bacterial infection and may lead to permanent scars, in more serious cases, severe allergic reactions will occur, leading to anaphylactic shock or even death.

In recent years, insecticides or poisonous baits are commonly used to lure solenopsis invicia to die slowly. However, both insecticides and poisonous bats are synthesized by chemical components, which will also cause harm to human health and environmental pollution

Therefore, more and more people are interested in researching and developing alternative control strategies.

À series of studies have shown that essential oils extracted from plants are toxic to different pests, Different compounds in plant essential oil (HOR) can act synergistically to improve its action potential and efficacy.

Chnnamenum cassia Pres! is one of the traditional Chinese medicinal materials with 500658 traditional medicinal value. In it, the volatile components of Cinnoamomum cassia Pres!) mainly containing terpenes and aliphatic compounds, have the highest medicinal value, The essential oil components in bark are different from those in leaves, and cinnamaldehyde is the highest content component thereof, in addition, some other components are also the main components of

Clnnamomum cassia Presi essential oi), and the main components in leaves are shghtiy different from those in bark, The Cihnamomum cassia Presi essential oil is a pure natural component, which is easy to decompose, safe, polintion-fres and toxic residue-fres, and has antibacterial, antioxidant, anti-inflanunatory and insecheida! activites, In recent years, researchers have used the Cämamomum cassis Presi essential oil on many insects, animals and parasitic fungi, all of which have the effects of avoidance, expulsion, inhibition and death, Repellence and fumigation are the prominent characteristics of Cinnamon cassia Pres! essential où, which can be used to process Cinnamomum cassis Presi essential oil, and then make products such as insect repellent water and fumigant, thus providing a guarantee for Cipmamaomum cassia Presi products to strengthen pesticide control and human health and safety management.

In the prior technology, the control means of sofenopsis invicta are immature, and the control products and methods are single. Therefore, the development of a insect repellent water by plant is lacking in the current research field, and it is extremely necessary to study a insect repellent water by green plant to prevent sofenopsis invicta from harming human body.

Summary in view of this, the purpose of the invention is to provide an insect repellent water for solenapsis invichs and the preparation method thereof. The insect repellent of the invention 18 hight yellow milky white liquid, with uniform and stable texture, taint Chmamamum cassia Prest fragrance, easy absorpiion, wo greasy, and lasting repellent effect. The adjusted volatile components of Cinnamon cassia Pres! repel solenopsis wovicia, which can act on different targets in solenopsis invicta cells so that solenopsis invict can change its ability to recognize people, thus achieving the control effect.

In order to achieve the above purpose, the invention adopts the following technical scheme:

À insect repellent water for solenopsis fivicta, which comprises the following raw materials in percentage by mass. 0.01%~10% of mixed Crrrammonnen cassia Presi essential oil, 19-10% of emulsifier and the balance of water, among them, the mixed Cimamomum cassia Pres!

essential oil 15 a mixture composed of Vietnamese Cinnamnum cassia Fres! bark essential +, 502658 and cinnamyl acetate with a mass ratio of 5-45: 4,

The invention has the advantages that:

The invention finds a new way to control sofenopsis invicta, which can effectively drive or kill solenopsis invicta by using the repellency of mixed (innamomum cassia Pres! essential oil.

It 1s mainly used for human beings, and can also be used for plant after proportion adjustment,

The invention 15 a now mechanism tor killing insects and increasing efficiency by modifying the essential off components of plant and adding the main components of similar essential oils. The insect repellent water provided by the invention can obviously enrich the product selectivity, improve the control effect, reduce the pesticide dosage and residue, and has the advantages of low dosage, good effect and low cost.

Further, the mass ratio of the mixed Cinnamomum cassia Pres! essential oil to the emulsifier is 1:1-9.

The adoption of the above further beneficial effects Hes in that the above mixing ratio of the invention can make the mixed Cinnamonnun cassia Pres! essential oil completely dispersed in the aquecus solution to form a uniform oil-in-water mixed solution of small particles and reduce the volatilization of components, thus facilitating the absorption of components.

Further, the emulsifier is any one of polyoxyethylene sorbitan monopaimutate (Tween 20), polyoxyethylene sorbitan monostearate (Tween 60) and polyoxyethylene sorbitan monocleate {Tween SO) or a mixture of several of them.

The adoption of the emulsifier has the advantages that the mixed C'Inramonum cassia Pres! essential oil can be better integrated into the agueous solution, the system 15 more stable, and the drug loading of the product is alse improved.

A preparation method of insect repellent water for sofenopsis invicta includes the following steps: {1} Weighing the raw materials according to the mass percentage of the insect repellent

Water for sofenopsis invicta, {2} Adding cinnamyl acetate into Vietnamese CBMamomum cassia Pres! bark essential où, and magnetically stirring at 20-100rpm for 20-40min to obtain mixed Chmamomum cassia

Presi essential oil for later use,

{3} Adding an emulsifier into water, and magnetically stirring for 30-60min Ét502658 300-1000rpm to obtain emulsifier aqueous solution; {4} Adding the mixed Cinnamon cassia Presi essential oil obtained in step (23 into the emulsifier aqueous solution obtained in step (3), and magnetically stirring for 0.5—4h at 20-25°C at 100-750 rpm, thus obtaining the insect repellent water for selenopsis invicta.

Further, tn the above step (2), the preparation method of Vietnamese Clmsnonnon cossia

Fresi bark essential oil comprises the following steps: grinding Vietnamese Chmamomuim cossia

Presi bark, sieving with a 40-00-mesh steve, extracting ÜMnamomum cassic Pres! bark essential où by steam distillation, further extracting and pusifving Cimnomomuem cassia Presi bark essential oil by a separatory funnel, anhydrous sodium sulfate and nontoxic organic soivent, and volatilizing the organic solvent until the solution is yellow viscous liguid, namely the

Vietnamese (inpamonnim cassia Pres! bark essential où.

According to the above technical scheme, compared with the prior technology, the invention has the following beneficial effects. 1. As the saliva of sofenopsis invicta 18 toxic, the mild ones fester and have scars, and the severe ones die, so we should protect it from the source. The invention puts forward effective insect repellent water for controlling solenopsis Iimvicfa tor the first time to protect the human body; moreover, the insect repellent water of the invention Is not greasy, has a refreshing feeling, and has the effect of moistening skin, 2. The insect repelient water of the invention is made of pure natural formula, 15 nontoxic and harmless to human body, can effectively replace chemical pesticides, reduce pesticide residues, and can be used in farmland after proportion adjustment to reduce the damage of soienopais invicta to farmland and effectively disperse and kill sofenopsis fmvicie; 3. The insect repellent water of the invention also has good bacteriosiatic effect to reduce the infection of germs and enhance the protection: 4. The efficacy of the insect repellent water of the invention is long-lasting, and the mixed

Cinnamomun cossia Pres! essential oil 15 compatible with the emulsifier to produce oil-in-water liquid particles, which can reduce the volatilization speed of the mixed Chmamonnum cassia

Presi essential oil and increase its adhesive force, and is easy to absorb,

The insect repellent water of the invention does not use any toxic organic solvent in the preparation process, 15 green and safe, and has been purified and extracted for many times to greatly increase the purity of essential oil, The insect repellent water prepared in the principle i502 658 component analysis of the invention has a low-dose and high-efficiency effect, 6. The insect repellent water of the invention is easy 10 process, does not need complicated equipment in the preparation process and is easy to operate, so it 18 suitable for mass industrial production.

Description of the invention

The technical solutions in the embodiments of the invention are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the invention, but not all of them. Based on the embodiment of the invention, all other embodiments obtained by ordinary technicians in the field without creative labor are within the scope of the invention.

Embodiment 1

The insect repellent water for solenopsis invicta comprises the following raw materials by mass: S0mg of Vietnamese Clnmnamomum cassie Pres! bark essential oil, 20mg of cionamyl acetate, 300mg of polyoxvethylene sorbitan monopalnutate (Tween 20) and 10g of deionized water,

The preparation method specifically comprises the following steps: {1} Weighing 13g of Cinhnamomum cassia Presi bark, grinding, sieving with a 60-mesh sieve, adding 300g of water, uniformly mixing, heating to 270°C and distilling for 4h to obtain a mixture of Cinnamon cassia Presi essential oil and water, filtering by à separatory funnel for three times, absorbing water with anhydrous sodium suifate, collecting essential oil, extracting and purifying with anhydrous ethanol and volatilizing anhydrous ethanol to obtain yellow viscous liquid, namely the Vietnamese Cimnomenum cassia Pres! bark essential oil, then weighing the raw materials according fo the above mass, {2} Dropwise adding cinnamy! acetate into the Vietnamese Cinnamon cassia Pres! bark essential oil, and magnetically stirring for 40nun at 20rpm to obtain mixed Cinnamon cassia

Presi essential oil for later use; {3} Dropwise adding polyoxyethylene sorbitan monopalmitate (Tween 20) into water, and magnetically stirring for 60min at 30rpm to obtain emulsifier aqueous solution with a mass concentration of 354;

{4} Adding the mixed Cinnamomum cassia Presi essential oil obtained in step (2) into 41502658 emulsifier aqueous solution obtained in step (3), and magnetically stirring at 20°C for 05h at 7S0rpm to obtain insect repellent water for solenopsis invicia,

Embodiment 2

The insect repellent water for solenopsis invicta comprises the following raw materials by mass. 23mg of Vietnamese Cirnamomum casyio Presi! bark essential oil, 20mg of cinnamyl acetate, 100mg of polyoxyethylene sorbitan monopalmitate (Tween 20) and 10g of deionized

Water,

The preparation method specifically comprises the following steps: {19 Weighing 15g of Chmomomum cassia Presi bark, grinding, sieving with a 40-mesh steve, adding 375g of water, uniformly mixing, heating to 270°C and distilling for 4h to obtain a mixture of Chmanomum cassie Presi essential oil and water, filtering for three times by a separatory funnel, absorbing water with anhydrous sodium sulfate, collecting essential oil, extracting and purifying with anhydrous ethanol and volathzing anbydrous ethanol to obtain yellow viscous figuid, namely the Cinnomonmum cassia Pres! bark essential oil; then weighing the raw materials according to the above mass, {2} Dropwise adding cinpamyl acetate into the Vietnamese Carmamnonuam cassia Prest bark essential oil, and magnetically stirring at 50rpm for 30min to obtain mixed Cinnamon cossica

Presi essential oil for later use, {33 Dropwise adding polyoxyethylene sorbitan monopalnutate (Tween 20} into water, and magnetically stirring at 500rpm for 40min to obtain emulsifier aqueous solution with a mass concentration of 3%, {4} Adding the mixed Cihnamomum cassia Pres! essential oil obtained in step (2) into the emulsifier aquecus solution obtained in step (3), and magnetically atirring at 20°C for 4h at 7SOrpm to obtain insect repellent water for solenapsis dvicia,

Embodiment 3

The insect repellent water for solenopsis invict comprises the following raw materials by mass: 225mg of Vietnamese Cianamomum cassia Fres! bark essential oil, 20mg of cinnamyl acetate, 1000mg of polyoxyethylene sorbitan monostearate (Tween 60} and 10g of deionized water,

The preparation method specifically comprises the following steps:

{1} Weighing 15g of Cinnomomun cassia Presi bark, grinding, sieving with a 30-miest 502658 sieve, adding 225g of water, uniformly mixing, heating to 270°C and distilling for 4h to obtain a mixture of Cinnamonugn cassia Pres! essential oil and water, filtering for three times by a separatory funnel, absorbing water with anhydrous sodium sulfate, collecting essential oil, extracting and purifying with anhydrous ethanol and volatilizing anhydrous ethane to oblain yellow viscous liquid, namely the Cirnommomum cassio Pres! bark essential oil, then weighing the raw materials according to the above mass; {2} Dropwise adding cinnamy! acetate into the Vietnamese Cinnomomum cassia Pres! bark essential oil, and magnetically stirring at 100rpm for 20min to obtain mixed Carmen CONSHE

Pres! essential oil for later use; {3} Dropwise adding polyoxyethylene sorbitan monostearate {Tween 60} into water, and magnetically stirring at 1000rpm for 30min to obtain emulsifier aqueous solution with a mass concentration of 10%; {4} Adding the mixed Cinnamon cassia Pres! essential oil obtained in step (23 into the emulsifier aqueous solution obtained in step (3), and magnetically stirring at 20°C for 4h at the speed of 100rpm to obtain insect repellent water for solenopsis invicta.

Embodiment 4

The insect repellent water for solenopsis invicta comprises the following raw materials by mass: S0mg of Vietnamese Cinmamonuun cassis Pres! bark essential oil, 300mg of polyoxyethylene sorbitan monooleate (Tween 80) and 10g of deionized water.

The preparation method specifically comprises the following steps: {1} Weighing 13g of Cinnamoman caxsa Presi back, grinding, sieving with a 60-mesh sieve, adding 300g of water, uniformly mixing, heating to 270°C and distilling for 4h to obtain a mixture of Cémamonuon cassia Presi essential oil and water, filtering by a separatory funnel for three times, absorbing water with anhvdrous sodium sulfate, collecting essential oil, extracting and purifying with anhvdrous ethanol and volatilizing anhydrous ethanol to obtain yellow viscous liquid, namely the Cinnanomaum cassia Pres] bark essential oil, then weighing the raw materials according to the above mass; {2} Dropwise adding emulsifier into water, and magnetically stirring for 30min at 1000rpm to obtain emulsifier aqueons solution with a mass concentration of 3%;

{3} Dropwise adding the Vietnamese Cirnomoimen cassia Pres! bark essential oil into 41502658 emulsifier agueous solution obtained in step (2), and magnetically stirring at 25°C for 4h at 7S0rpm to obtain the insect repellent water for sofenopsis Irvicia,

Comparative example

The insect repellent water for solenopsis brvicia comprises the following raw materials: 47mg of trans cinnamaldehyde standard, 23 3mg of cinnamyl acetate, 300mg of polyoxyethylene sorbitan monooleate {Tween 80) and 10g of deionized water.

The preparation method specifically comprises the following steps: {1} Weighing the raw materials according to the above mass; {23 Dropwise adding cinnamyl acetate into trans cinnamaldehyde standard, and magnetically stirring at 20rpm for 40min to obtain mixed solution for later use; {3} Dropwise adding emulsifier into water, and magnetically stirring at 30rpm for 60min to obtain emulsifier aqueous solution with a mass concentration of 3%; {4} Adding the mixed solution obtained in step (2) into the emulsifier aqueous solution obtained in step (3), and magnencally stirring at 20°C for 4h at 100rpim to obtain insect repellent water for sofenopsis invicia,

Performance testing

Repellent effect test

Take the insect repellent water prepared in embodiments 1-4 and comparative example to soak the same-size ham sausage for 30s, while take the deionized water for the blank control group to soak the same-size ham sausage for 30s, then put them in different positions in the same beaker after drying, release 50 sofenopsis Invickas, observe and count the aggregation number of soienopais invicia after Ih and Zh, respectively, and calculate the aggregation rate of solenopsis

UPC,

The results are shown in Table ! and Table 2.

Table 1 Aggregation number and aggregation rate of sofenopsis invicta alter 1h

Table 2 The aggregation number and aggregation rate of sofenopsis invicia after 2h

From Table 1 and Table 2, it can be seen that compared with the comparative example and the blank control group, the insect repellent water prepared in embodiments 1-4 of the invention has more remarkable control effect on sofenopsis nvicia,

To sum up, in the invention, natural plant essential oil is used as the effective ingredient, and the emulsifier with water solubility and high safety ts used to wrap the essential oil in water, which can reduce the volatilization of essential oil and better combine with skin. The invention reduces the toxicity of pesticides to be safe, green and environment-friendiy, can be used for protecting human body safety to reduce the damage of sofgnopsis invicta, enriches the control methods of sofenopsis invicta, and has a very simple manufacturing process and a long efficacy time.

The above description of the disclosed embodiments enables those skilled in the field to make or use the invention, Many modifications to these embodiments will be obvious to those skilled in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention will not be limited to the embodiments shown herein, bul will accord to the widest scope consistent with the principles and novel features disclosed herein

Claims (8)

Claims LU502658

1. An insect repellent water for solenopsis invicta, which is characterized by comprising the following raw materials in percentage by mass: 0.01%—10%6 of mixed Cinnamomum cassis Pres! essential oil, 1%-10% of emulsifier and the balance of water; The mixed Cinnamonmum cossia Pres! essential oil is a mixture of Vietnamese Craupnonun cassie Presi bark essential où and cinnamyl! acetate with a mass ratio of 5-45. 4.

2. The insect repellent water for sofenopsis frvicto according to claim |, characterized in that the mass ratio of the mixed Camamoimen cassia Pres! essential oil and the emulsifier is 1 1-9,

3. The insect repellent water for sofenopsis invicta according to claim | or 2, characterized in that the emulsifier is any one of polyoxyethylene sorbitan monopalmitate, polyoxyethyiene sorbitan monostearate and polyoxyethylene sorbitan monocleste, or a mixture of several of them.

4. The preparation method of insect repellent water for solenopsis invicte, which is characterized by comprising the following steps: {1} weighing all raw materials according to the mass percentage of the sect repellent water for solenopsis invicta according to any one of claims 1 to 3; {2} adding cinnamyl acetate into Vietnamese C'innamonnen cassia Presi essential ol bark, and magnetically stirring to obtain mixed Cinnamonnm cassia Presi essential oil for later use; {3} adding emulsifier into water and magnetically stirring to obtain emulsifier aqueous solution; {4} adding the mixed Chmamomum cassia Pres! essential oil obtained in the step (2) into the emulsifier agueous solution obtained in the step (3), and magnetically stirring to obtain the insect repeliont water for solenopsis invicia.

The preparation method of insect repellent water for solenapsis invicta according to claim 4, characterized in that, in step (2) the preparation method of the Vietnamese Crncmonnon cassis Presi bark essential oil comprises the following steps: grinding Vietnamese ÜMnamomuin cassia Presi bask, sieving with a 40-60-mesh sieve, extracting the Cinnamon cassia Pres! essential oil, and further extracting and purifying to obtain a yellow viscous Higuid, namely the Vietnamese Chmamonum cassia Presi bark essential oil.

6. The preparation method of insect repellent water for sofenopsis invicia according 1502658 claim 4, characterized in that in step (2), the rotating speed of magnetic stirring is 20-I00rpm and the time is 20-40min.

7. The preparation method of insect repellent water for sofenopais invicio according to claim 4, characterized in that in step (3), the rotating speed of magnetic stirring is 300-1000rpm and the time is 30-60min,

8. The preparation method of insect repellent water for solenopsis invicta according to claim 4, characterized in that in step (4), the temperature of magnetic stirring is 20-25°C, the rotating speed is 100-750rpm, and the time 15 0.5~4h,