Method for preparing mosquito repellent liquid based on five Chinese herbal medicaments
A technology for Chinese herbal medicine and mosquito repellent is applied in the field of preparation of mosquito repellent liquid based on five-flavor Chinese herbal medicine, which can solve the problem that the practical effect of pyrethroid mosquito repellent is not obvious, and achieve the effect of simple preparation method and good effect.
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Embodiment 1
[0023] A mosquito repellent liquid based on five-flavored Chinese herbal medicine is composed of the following components according to the mass percentage: 80% concentrated liquid of five-flavored Chinese herbal medicine, and 20% concentrated liquid of white flower dry powder of pyrethrum.
[0024] The above-mentioned preparation method of mosquito repellent liquid based on five flavors of Chinese herbal medicines comprises the following steps:
[0025] (1) According to the above mass percentages, weigh 80 grams of calamus, Qilixiang, yanghua, clove leaves, and mugwort leaves in a ratio of 1:1:2:2:2, grind them into powder, add them to the casserole, and add 1600 grams decocted in pure water for 120 minutes, concentrated to 1 / 20 and filtered, and the filtrate was set aside;
[0026] (2) According to the above mass percentage, weigh 20 grams of dried pyrethrum white flowers, dry the white pyrethrum flowers, grind them into powder, add 400 grams of pure water, mix well, add them...
Embodiment 2
[0030] A mosquito repellent liquid based on five-flavored Chinese herbal medicine is composed of the following components according to mass percentage: 85% of five-flavored Chinese herbal medicine and 15% of pyrethrum white flower dry powder.
[0031] The above-mentioned preparation method of mosquito repellent liquid based on five flavors of Chinese herbal medicines comprises the following steps:
[0032] (1) According to the above mass percentage, weigh 85 grams of calamus, seven lixiang, yanghua, clove leaves and mugwort leaves in the ratio of 1:1:2:2:2, grind them into powder and add them to the casserole, add 1700 grams decocted in pure water for 130 minutes, concentrated to 1 / 20 and filtered, and the filtrate was set aside;
[0033] (2) According to the above mass percentage, weigh 15 grams of dried pyrethrum white flowers, dry the white pyrethrum flowers, grind them into powder, add 300 grams of pure water, mix well, add them to a casserole for decoction, and the decoct...
experiment example 1
[0037] The mosquito repellent liquid based on Wuwei Chinese herbal medicine prepared in Example 1-2 was diluted 2 times, 3 times, and 4 times with water respectively, and tested the mosquito repellent effect of different concentrations based on Wuwei Chinese herbal medicine mosquito repellent, and the mosquito repellent based on Wuwei Chinese herbal medicine The effect difference between liquid and single permethrin mosquito repellent (0.6% content of bifluethrin).
[0038] Three people were selected to apply the mosquito repellent evenly on the 4cm×4cm bare skin on the back of the left hand at different times on the day of the test. The back of the right hand was used as a control, and the rest of the back of the hand was tightly covered. During the test, put the right hand and left hand into the glass mosquito cage for 5 minutes, observe and record the number of mosquitoes that come to stay and suck blood, and calculate the effective protection time and protection rate (see T...
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