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Preparation method of microcapsule mosquito-repellent incense liquid on basis of wormwood oil

A technology of microcapsules and mugwort oil, applied in the fields of botanical equipment and methods, chemicals for biological control, preservation of human or animal bodies, etc., can solve the problem of fast release rate of mugwort and poor antibacterial and mosquito repellent effect. and other problems, to achieve the effect of enhancing antibacterial and mosquito repellent effects, excellent stability, and excellent adhesion

Inactive Publication Date: 2016-10-26
HUANGSHAN LISHEN COMMODITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technology has a fast release rate for mugwort, and the antibacterial and mosquito repellent effect is not good. The present invention improves its antibacterial and mosquito repellent effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 A kind of preparation method of the microcapsule mosquito-repellent liquid based on mugwort oil, the preparation steps are as follows:

[0028] (1) 5 g of cypermethrin is extracted with ethanol and set aside;

[0029] (2) Mix and stir 150ml of gum arabic aqueous solution with a mass concentration of 3%, 2g of peach green peel extract, and the extract of cypermethrin in step (1) to obtain mixed solution A. The stirring speed is 300r / min, the stirring temperature is 50°C, and the stirring time is 30min;

[0030] (3) Under vacuum conditions, in the mixed solution A, add dropwise at the same time the mass concentration of 5% negatively charged gelatin aqueous solution 200ml and mugwort oil 8g, stir and mix, and reach mugwort oil mixed and dispersed in the mixed solution to obtain For emulsion A, the stirring speed is 300r / min, the stirring temperature is 50°C, and the stirring time is 30min;

[0031] (4) Add 100ml of deionized water to the emulsion A obtained...

Embodiment 2

[0040] A kind of preparation method of the microcapsule mosquito-repellent liquid based on mugwort oil, the preparation steps are as follows:

[0041] (1) 5 g of cypermethrin is extracted with ethanol and set aside;

[0042] (2) Mix and stir 250ml of gum arabic aqueous solution with a mass concentration of 5%, 2g of peach green peel extract, and the extract of cypermethrin in step (1) to obtain mixed solution A. The stirring speed is 500r / min, the stirring temperature is 65°C, and the stirring time is 45min;

[0043] (3) Under vacuum conditions, in the mixed solution A, add dropwise the mass concentration of 7% negatively charged gelatin aqueous solution 250ml and mugwort oil 8g simultaneously, stir and mix, reach mugwort oil and mix and disperse in this mixed solution, obtain For emulsion A, the stirring speed is 500r / min, the stirring temperature is 60°C, and the stirring time is 40min;

[0044] (4) Add 150ml of deionized water to the emulsion A obtained in step (3), and sti...

Embodiment 3

[0053] A kind of preparation method of the microcapsule mosquito-repellent liquid based on mugwort oil, the preparation steps are as follows:

[0054] (1) 5 g of cypermethrin is extracted with ethanol and set aside;

[0055] (2) Mix and stir 200ml of gum arabic aqueous solution with a mass concentration of 4%, 2g of peach green peel extract, and the extract of cypermethrin in step (1) to obtain mixed solution A. The stirring speed is 400r / min, the stirring temperature is 58°C, and the stirring time is 38min;

[0056] (3) Under vacuum conditions, in the mixed solution A, add dropwise at the same time the mass concentration of 6% negatively charged gelatin aqueous solution 225ml and mugwort oil 8g, stir and mix, and the mugwort oil is mixed and dispersed in the mixed solution to obtain For emulsion A, the stirring speed is 400r / min, the stirring temperature is 55°C, and the stirring time is 35min;

[0057] (4) Add 125ml of deionized water to the emulsion A obtained in step (3)...

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Abstract

The invention discloses a preparation method of a microcapsule mosquito-repellent incense liquid on the basis of wormwood oil. The method comprises the following steps that 1, 5 g of cypermethrin is extracted with ethyl alcohol for use; 2, an Arabic gum aqueous solution, an extracting solution of juglans regia L. and a cypermethrin extraction solution are mixed and stirred, and a mixed solution A is obtained; 3, under the vacuum condition, a negatively charged gelatin aqueous solution with the mass concentration ranging from 5% to 7% and the wormwood oil are dropwise added into the mixed solution A simultaneously, stirring and mixing are conducted, and an emulsified solution A is obtained; 4, 100 ml-150 ml of deionized water is added into the emulsified solution A obtained in the third step, and a diluted solution A is obtained; 5, the pH value of the diluted solution A obtained in the fourth step is adjusted to range from 3.5 to 5.5, and microcapsules A are precipitated; 6, the pH value of the microcapsules A is adjusted to range from 6.2 to 7, a curing agent is added, and cured microcapsules B are obtained; 7, reactants are continuously added to the microcapsules B obtained in the sixth step, and the microcapsule mosquito-repellent incense liquid is obtained. The microcapsule mosquito-repellent incense liquid is lasting in action and good in antibacterial effect.

Description

technical field [0001] The invention relates to the technical field of mosquito-repellent incense preparation, in particular to a preparation method of mugwort oil-based microcapsule mosquito-repellent incense. Background technique [0002] Mugwort is a perennial wild herb of the genus Artemisia in the family Asteraceae. There are many kinds of physiologically active components of mugwort essential oil extracted from it, among which many monoterpenes and sesquiterpenes have antibacterial and mosquito repellent properties. As a natural, Environmentally friendly antibacterial and antifungal agent, in line with people's concept of green consumption. However, due to the instability of mugwort essential oil, the duration of its medicinal effect is short, which limits its application. The microcapsule technology coats the essential oil to release it slowly through the capsule wall, improving the pressure sensitivity, photosensitivity and heat sensitivity of mugwort essential oil,...

Claims

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Application Information

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IPC IPC(8): A01N65/12A01N53/08A01N25/28A01N25/18A01P17/00A01P1/00A01P3/00
CPCA01N25/18A01N25/28A01N53/00A01N65/00A01N65/12A01N2300/00Y02A50/30
Inventor 程家利
Owner HUANGSHAN LISHEN COMMODITY
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