Plant source itch mite killing spray and preparation method thereof
The technology of plant source and scabies mites is applied in the field of plant source scabies mites killing spray and its preparation field, which can solve the problems of drug residues, environmental hazards and the like, and achieve the effects of being convenient to carry, good in curative effect, and simple and easy to prepare.
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[0028] The invention also discloses a preparation method of a plant-derived scabies-killing spray, comprising the following steps:
[0029] (1), soak Eupatorium adenophorum powder by adding methanol, soak at room temperature for 24 hours, soak 3 times, wherein, the volume fraction of methanol is 60%-100%, the mass fraction ratio of Eupatorium adenophorum powder to methanol (g / ml ) is 1:4-8;
[0030] (2), the filtrate soaked in step (1) is collected, evaporated to dryness with a rotary evaporator to the extract, then extracted with a mixture of methanol, ethyl acetate and water, and evaporated to dryness in the upper organic phase obtained by extraction. Extract, for later use; wherein, the volume ratio of methanol: water: ethyl acetate = 1:4:5;
[0031] (3), weigh the extract after step (2) extraction, add ethanol to dissolve, and add activated carbon, the mass fraction of activated carbon is 1%-6%; stir 0.5-1.5 hours under the condition of 35-45 ℃ water bath, filter, The fi...
Embodiment 1
[0036] A botanical acaricidal spray comprises, in parts by mass, 0.1 part of Eupatorium adenophorum extract, 2.4 parts of an emulsifier, 20 parts of a cosolvent, 2.5 parts of a transdermal agent, and 75 parts of a solvent.
[0037] In this implementation case, the emulsifier is Tween-80, the cosolvent is absolute ethanol, the transdermal agent is laurozone, and the solvent is distilled water.
[0038] The preparation method of botanical acaricide comprises the following steps:
[0039] (1) Take a certain amount of Eupatorium adenophorum powder, add 6 times of 80% methanol to soak at room temperature and shake it on a shaker for 24 hours, soak for 3 times, and collect and combine several filtrates. Evaporate to dryness with a rotary evaporator, and extract with methanol: water: ethyl acetate = 1:4:5, and evaporate the upper organic phase obtained by extraction to extract to extract for later use.
[0040] (2) Weigh 3 parts of the medicinal extract described in step (1), add 3 ...
Embodiment 2
[0043] A botanical acaricidal spray comprises, in parts by mass, 0.3 part of Eupatorium adenophorum extract, 1 part of emulsifier, 43 parts of cosolvent, 0.7 part of transdermal agent and 55 parts of solvent.
[0044] In this implementation case, the emulsifier is Tween-80, the cosolvent is absolute ethanol, the transdermal agent is laurozone, and the solvent is distilled water.
[0045] The preparation method of botanical acaricide comprises the following steps:
[0046] (1) Take a certain amount of Eupatorium adenophorum powder, add 4 times of 100% methanol to soak at room temperature and shake on a shaker for 24 hours, soak for 3 times, and collect and combine several times of filtrate. Evaporate to dryness with a rotary evaporator, and extract with methanol:water:ethyl acetate (ml:ml:ml) = 1:4:5 extract, evaporate the upper organic phase obtained by extraction to extract, and set aside.
[0047] (2) Weigh 1 mass part of the medicinal extract described in step (1), add 6 m...
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