Method for preparing mosquito repellent by using sand ginger oil to extract waste liquid

A repellent, ginger oil technology, applied in animal repellents, botanical equipment and methods, chemicals for biological control, etc., can solve the problems of polluting the environment, harming human health, etc. harm, pollution reduction, harm reduction effect

Active Publication Date: 2022-04-15
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, people have used the most mosquito repelling methods to control mosquitoes by burning mosquito coils and spraying chemical insecticides. Mosquito coils and chemical insecticides not only pollute the environment but also damage human health when killing mosquitoes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention utilizes sand ginger oil to extract waste liquid and prepares the method for mosquito repellent, comprises the following steps:

[0033] a. extract trans-ethyl p-methoxycinnamate and cis-ethyl p-methoxycinnamate mixture from sand ginger oil extraction waste liquid, comprising the following steps:

[0034] (1) Collect the water phase distillate, which is the water phase distillate flowing out from the oil-water separator of the sand ginger oil extraction tank; or the brown yellow turbid waste liquid in the sand ginger oil extraction tank The water-phase distillate collected after redistillation; wherein the water-phase distillate flowing out of the oil-water separator of the ginger oil extraction tank is a colorless transparent liquid, which is the remaining distilled water after the ginger oil is separated, and dissolved in this water There are some volatile components of sand ginger, and its main components are trans-ethyl p-methoxycinnamate and c...

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Abstract

The present invention utilizes ginger oil to extract the waste liquid to prepare the method for mosquito repellent, first extract trans-p-methoxy ethyl cinnamate and cis-p-methoxy ethyl cinnamate mixture from the sand ginger oil extraction waste liquid , then mix 30-50 parts of trans-p-methoxy ethyl cinnamate and cis-p-methoxy ethyl cinnamate mixture, 10-20 parts of glycerin, 1-5 parts of Eucalyptus magnanimum by mass ratio Leaf oil, 2-20 parts of propylene glycol, 3-5 parts of polyoxyethylene sorbitan monooleate, 1-3 parts of sorbitan monopalmitate, 20-40 parts of lemon eucalyptus leaf hydrosol, 0.5-1 part of sodium pyrrolidone-5-carboxylate is mixed and emulsified at 75°C to make a mosquito repellent. The method is simple to operate, and the prepared product can effectively prevent mosquitoes, is environmentally friendly, has low cost, and is easy to popularize and use.

Description

technical field [0001] The invention relates to a method for preparing a mosquito repellent, in particular to a method for preparing a mosquito repellent by using ginger oil to extract waste liquid. Background technique [0002] Ginger( Kaempferia galangal L .) It is the dry rhizome of Zingiberaceae kaempferen, which is mainly produced in Guangdong, Guangxi and other provinces and regions. It is an important medicinal and edible plant. skin disease. Because sand ginger has a special aromatic smell and acrid taste, it is also widely used as non-staple food and flavoring agent in addition to medicinal purposes. The rhizome of sand ginger is rich in essential oils and is widely used in medicine, cosmetics and food industries. Most of the production of sand ginger essential oil adopts the traditional steam distillation process. In the steam distillation process, only the oil phase part of the distillate is generally collected as the essential oil product. The main component i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C67/58C07C67/54C07C67/52C07C69/736A01N65/28A01N37/38A01N25/04A01P17/00
CPCC07C67/58C07C67/54C07C67/52C07C69/736A01N65/00A01N65/28A01N37/38A01N25/04C07B2200/09Y02A50/30
Inventor 田玉红郝文凤董菲
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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