Mosquito repellent liquid containing zanthoxylum oil extract and preparation method of mosquito repellent liquid

Abstract

The invention belongs to the technical field of mosquito repellent products, and particularly relates to a mosquito repellent liquid containing zanthoxylum oil extract and a preparation method thereof, the mosquito repellent liquid containing zanthoxylum oil extract and the preparation method thereof are characterized in that the mosquito repellent liquid containing zanthoxylum oil extract comprises the following components: 30-50% of zanthoxylum oil, 25-40% of absolute ethyl alcohol and the balance of deionized water; the zanthoxylum oil extract is adopted as a mosquito repellent component, and the mosquito repellent is safe, non-toxic, mild, non-irritant and suitable for various people.

Description

Technical Field

[0001] The invention belongs to the technical field of mosquito repellent products, and specifically relates to a mosquito repellent liquid containing a pepper oil extract and a preparation method thereof. Background Art

[0002] Mosquito repellent is a liquid product specially designed to prevent mosquito bites. It releases specific chemical ingredients or natural extracts to achieve the effect of repelling mosquitoes. In the current market, there are many types of mosquito repellent products, each with its own characteristics, but they generally have certain shortcomings.

[0003] Traditional mosquito coils produce smoke during the burning process, which not only pollutes the environment, but may also have adverse effects on human respiratory health. Although electric mosquito coil liquid is easy to use, its main ingredients, such as pyrethroid insecticides, are easy to accumulate indoors if used in large quantities for a long time and with poor indoor air circulation, which may cause potential harm to the user's sleep, resistance, brain, liver and respiratory system. In addition, although mosquito repellent grass is a natural choice, its mosquito repellent effect is affected by many factors, such as plant size, sunlight intensity and space size, so its mosquito repellent effect is not stable and relatively weak. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a mosquito repellent liquid containing Zanthoxylum bungeanum oil extract and a preparation method thereof.

[0005] The technical scheme adopted by the present invention is as follows: the present invention provides a mosquito repellent liquid containing pepper oil extract, comprising the following ingredients: 30-50% pepper oil, 25-40% anhydrous ethanol, and the balance being deionized water.

[0006] Furthermore, the following ingredients are included: 50% of pepper oil, 25% of anhydrous ethanol, and the balance of deionized water.

[0007] This solution also discloses a method for preparing a mosquito repellent liquid containing a Zanthoxylum bungeanum oil extract, which mainly comprises the following steps:

[0008] Step 1: Shake and mix the pepper oil, anhydrous ethanol and deionized water, and let stand to obtain an emulsion mixture;

[0009] Step 2: Pour the emulsion mixture into a centrifuge for centrifugation at a speed of 7000-10000 rpm for 10 minutes to obtain a clear and transparent supernatant;

[0010] Step 3: Filter the supernatant using a filter to obtain mosquito repellent water;

[0011] Step 4: Take samples of the mosquito repellent for testing and then bottle it after passing the test.

[0012] Furthermore, the filter is a microporous filter with a pore size of 0.22 um.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows:

[0014] (1) The present invention uses pepper oil extract as a mosquito repellent component, which is safe, non-toxic, mild and non-irritating, and suitable for all kinds of people.

[0015] (2) The mosquito repellent liquid of the present invention is easy to carry and suitable for various environments such as home and outdoor.

[0016] (3) The mosquito repellent liquid of the present invention contains the natural aroma of Chinese prickly ash, which is fresh and has no irritating smell.

[0017] (4) The mosquito repellent liquid of the present invention can effectively repel mosquitoes for 0.5-1 hour.

[0018] (5) The preparation method of the mosquito repellent liquid of the present invention is simple, and the required raw materials are environmentally friendly and widely available, which is conducive to large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the chromatogram obtained after HPLC analysis of mosquito repellent liquid and linalool reference substance;

[0020] Figure 2 This is the chromatogram obtained after HPLC analysis of mosquito repellent liquid and limonene reference substance.

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the protection scope of the present invention is not limited to these embodiments. Any changes or equivalent substitutions that do not deviate from the concept of the present invention are included in the protection scope of the present invention.

[0023] Example 1

[0024] A mosquito repellent liquid containing pepper oil extract, the raw material ratio is: 30% pepper oil, 40% anhydrous ethanol, 30% deionized water.

[0025] The main mosquito repellent ingredients of Sichuan pepper oil are linalool and limonene.

[0026] Preparation process:

[0027] Step 1: Shake and mix the pepper oil, anhydrous ethanol and deionized water, and let stand to obtain an emulsion mixture;

[0028] Step 2: Pour the emulsion mixture into a centrifuge for centrifugation at a speed of 7000-10000 rpm for 10 minutes to obtain a clear and transparent supernatant;

[0029] Step 3: Filter the supernatant using a filter to obtain mosquito repellent water;

[0030] Step 4: Take samples of the mosquito repellent for testing and then bottle it after passing the test.

[0031] Example 2

[0032] A mosquito repellent liquid containing pepper oil extract, the raw material ratio is: 50% pepper oil, 25% anhydrous ethanol, 25% deionized water.

[0033] The main mosquito repellent ingredients of Sichuan pepper oil are linalool and limonene.

[0034] Preparation process:

[0035] Step 1: Shake and mix the pepper oil, anhydrous ethanol and deionized water, and let stand to obtain an emulsion mixture;

[0036] Step 2: Pour the emulsion mixture into a centrifuge for centrifugation at a speed of 7000-10000 rpm for 10 minutes to obtain a clear and transparent supernatant;

[0037] Step 3: Filter the supernatant using a filter to obtain mosquito repellent water;

[0038] Step 4: Take samples of the mosquito repellent for testing and then bottle it after passing the test.

[0039] Use effect test

[0040] Test samples: Example 1 and Example 2

[0041] Test method: 20 volunteers were selected and randomly divided into 2 groups, 10 in each group. The mosquito repellents of Examples 1 and 2 of the present invention were tested respectively. One person in each group was randomly selected as a blank control, and the rest of the volunteers were evenly smeared with the mosquito repellent on their arms and legs. The volunteers were then allowed to sit quietly or walk slowly within the experimental range to observe the effect of the mosquito repellent.

[0042] The results showed that no allergic symptoms such as redness, swelling, itching, etc. occurred at the application site in the two experimental groups. The 100% repellent time of the mosquito repellent obtained in Example 1 can reach 30 minutes, and the 100% repellent time of the mosquito repellent obtained in Example 2 can reach 1 hour.

[0043] In summary, the mosquito repellent liquid is prepared from a certain ratio of prickly ash oil extract, anhydrous ethanol and deionized water. While achieving the mosquito repellent effect, it can also play an antibacterial and disinfecting role. Anhydrous ethanol can also accelerate the volatilization speed of the mosquito repellent liquid and reduce the sticky feeling of the mosquito repellent liquid on the skin. The raw materials for preparation are green and natural, have little irritation to the human body, and have a pleasant fragrance.

[0044] The chromatogram obtained after HPLC analysis of mosquito repellent liquid and linalool reference substance, chromatographic conditions: using a C18 chromatographic column with a specification of 4.6mm×250mm, 5um, column temperature of 30℃, injection volume of 10ul, UV detection wavelength of 205nm, mobile phase of 50% acetonitrile-water solution, isocratic elution at a flow rate of 1ml / min for 20min, the reference substance was diluted with anhydrous ethanol, the experimental results are as follows Figure 1 shown.

[0045] The chromatogram obtained after HPLC analysis of mosquito repellent liquid and limonene reference substance, chromatographic conditions: using a C18 chromatographic column with specifications of 4.6mm×250mm, 5um, column temperature of 40℃, injection volume of 10ul, UV detection wavelength of 203nm, mobile phase of 70% acetonitrile-water solution, isocratic elution at a flow rate of 1ml / min for 30min, the reference substance was diluted with anhydrous ethanol, the experimental results are as follows Figure 2 shown.

[0046] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mosquito repellent liquid containing Zanthoxylum bungeanum oil extract, characterized in that: The invention comprises the following ingredients: 30-50% of pepper oil, 25-40% of anhydrous ethanol and the balance of deionized water.

2. The mosquito repellent liquid containing Zanthoxylum bungeanum oil extract according to claim 1, characterized in that: The invention comprises the following ingredients: 50% of pepper oil, 25% of anhydrous ethanol and the balance of deionized water.

3. A method for preparing a mosquito repellent liquid containing a Zanthoxylum oil extract, comprising preparing the mosquito repellent liquid containing a Zanthoxylum oil extract according to claim 2, characterized in that: The main steps are as follows: Step 1: Shake and mix the pepper oil, anhydrous ethanol and deionized water, and let stand to obtain an emulsion mixture; Step 2: Pour the emulsion mixture into a centrifuge for centrifugation at a speed of 7000-10000 rpm for 10 minutes to obtain a clear and transparent supernatant; Step 3: Filter the supernatant using a filter to obtain mosquito repellent water; Step 4: Take samples of the mosquito repellent for testing and then bottle it after passing the test.

4. The preparation method according to claim 3, characterized in that: The filter is a microporous filter with a pore size of 0.22 um.

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