Natural plant resource volatile mosquito and insect expelling and killing agent and preparation method thereof

A plant-derived, natural plant technology, applied in the field of preparation of mosquito repellents, can solve problems such as waste, low efficiency, and difficulty in achieving the desired effect, and achieve the effect of simple and feasible preparation method and improved extraction rate

Inactive Publication Date: 2018-04-13
WUYI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the unilateral essential oil has a single component and low effici

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation of Wedelia volatile mosquito repellent, comprising the following components and percentages:

[0031] Wedelia essential oil 10%, ethanol 20%, 1, 2-pentanediol 1%, menthol 0.5%, vitamin B 1 0.5%, deionized water 68%.

[0032] Wherein the extraction method of Wedelia essential oil mainly comprises the following steps:

[0033] (1) First weigh 400 g of fresh Wedelia stems, leaves and flowers, cut them into pieces, put them into a 2000 mL distillation flask, add 1200 mL of distilled water, and directly heat and reflux for 2 h through steam distillation;

[0034] (2) Preliminary separation of the oil-water mixture obtained in step (1) through a micro-separating funnel, and direct drying with a desiccant and concentration under reduced pressure to obtain the required dried Wedelia essential oil;

[0035] (3) Filter the crude essential oil obtained in step (2) through a microfiltration membrane (pore size ≤ 0.50 microns) to obtain clarified and dried Wedelia es...

Embodiment 2

[0043] A preparation of lantana volatile mosquito repellent, comprising the following components and percentages:

[0044] Lantana essential oil 12%, ethanol 18%, 1, 2-pentanediol 1.5%, menthol 0.5%, vitamin B 1 0.6%, deionized water 67.4%.

[0045] Wherein the extraction method of lantana essential oil mainly comprises the following steps:

[0046] (1) First weigh 400 g of fresh lantana stems and leaves, cut them into pieces, put them into a 2000 mL distillation flask, add 1200 mL of distilled water, and directly heat and reflux for 2 h through steam distillation;

[0047] (2) Preliminary separation of the oil-water mixture obtained in step (1) through a micro-separating funnel, and direct drying with a desiccant and concentration under reduced pressure to obtain the required dry lantana essential oil;

[0048] (3) Filter the crude essential oil obtained in step (2) through a microfiltration membrane (pore size ≤ 0.50 microns) to obtain clarified and dried lantana essential...

Embodiment 3

[0056] A preparation of a volatile mosquito repellant for ghost needle grass, comprising the following components and percentages:

[0057] Ghost needle essential oil 8%, ethanol 20%, 1, 2-pentanediol 1.2%, menthol 0.6%, vitamin B 1 0.5%, deionized water 69.7%.

[0058] Wherein the extraction method of the essential oil of ghost needle grass mainly includes the following steps:

[0059] (1) Firstly, weigh 400 g of fresh spruces stems and leaves, cut them into pieces, put them into a 2000 mL distillation flask, add 1200 mL of distilled water, and directly heat and reflux for 2 h through steam distillation;

[0060] (2) Preliminarily separate the oil-water mixture obtained in step (1) through a micro-separating funnel, and dry it directly with a desiccant and concentrate it under reduced pressure to obtain the required dried ghost needle grass essential oil;

[0061] (3) Filter the crude essential oil obtained in step (2) through a microfiltration membrane (aperture ≤ 0.50 mic...

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Abstract

The invention provides a natural plant resource volatile mosquito and insect expelling and killing agent. Plant essential oil is extracted from natural plants in a Lingnan region; the plant resource volatile mosquito and insect expelling and killing agent is prepared from the following ingredients in a compounding mode: 10 to 30 percent of plant essential oil, 5 to 20 percent of ethanol, 0.1 to 2percent of 1,2-pentanediol, 0.1 to 2 percent of menthol, 0.1 to 2 percent of vitamin B1 and 44 to 80 percent of deionized water. The plants universally existing in the Lingnan region are used as the basis; the volatile ingredients of the plants are extracted for preparing the plant resource volatile mosquito and insect expelling and killing agent; the menthol and the vitamin B1 are also added formeeting the sensory requirements of user groups and the mosquito and insect expelling and killing synergistic effect; the plant essential oil and the ethanol have the certain characteristics of anticorrosion, antibiosis and the like; the addition of preservatives, antibacterial agents and the like with toxic and side effects on the human body is not needed; the natural resources are reasonably developed and utilized; the guide is provided for the effective control on foreign specie plants and the environment protection; the economic benefits and the social benefits can also be generated on thedevelopment of the Lingnan region; the preparation method is simple and feasible, and is applicable to large-scale and mass production.

Description

technical field [0001] The invention relates to a preparation method of a mosquito repellent, in particular to a preparation method of a mosquito repellent using natural plants in Lingnan area of ​​China as raw materials. Background technique [0002] People who live and work in environments such as forests, grasslands and wilderness often need to use insect repellents. Because mosquitoes feed on human blood, they are the main vectors of diseases such as dengue fever, filariasis, yellow fever, and malaria. Therefore, a safe, efficient, non-toxic and pollution-free mosquito repellent is exactly what people need. The most commonly used broad-spectrum repellents today are DEET and BAAPE. If used for a long time or in large quantities, they will cause neurological symptoms in the human body and cause pollution to the water and soil environment. At the same time, the mosquito repellent products containing the above two ingredients on the market are all expensive, have poor repe...

Claims

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Application Information

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IPC IPC(8): A01N65/12A01N65/28A01N65/08A01N65/36A01N31/02A01N31/06A01N43/78A01N25/02A01P17/00A01P7/04
CPCA01N25/02A01N31/02A01N31/06A01N43/78A01N65/00A01N65/08A01N65/12A01N65/28A01N65/36Y02A50/30
Inventor 吴盼盼吴通荣汤冠婷陆文滢冯嘉惠李嘉豪李冬利洪为谦盛钊君张焜
Owner WUYI UNIV
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