A kind of yew solid perfume and preparation method thereof
The technology of solid perfume and yew is applied to the formulation of perfume preparations, pharmaceutical formulations, cosmetic preparations, etc., and can solve the problems that the content of total flavonoids needs to be increased, is not suitable for perfumes and the like, achieves good selectivity, improves the embedding rate, Portable effect
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Embodiment 1
[0026] The yew solid perfume of the present embodiment and preparation method thereof, comprises the following steps:
[0027]Step 1. Pretreatment of raw materials: select fresh yew branches and leaves, wash them, dry them in an oven, control the temperature below 60°C, and then pulverize them with a particle size of 30-40 mesh;
[0028] Step 2, extraction of volatile oil: put 1 kg of crushed yew branches and leaves into 35°C Titian petroleum ether for two consecutive extractions, adding 15kg Titian petroleum ether each time, and the extraction time is 4 hours for the first time. 2h for the second time. Combine the extract after filtering, remove the residue, and obtain the extract containing volatile oil;
[0029] Step 3, post-treatment of the extract: put the extract into a distiller to evaporate the petroleum ether therein to obtain an extract; add 5 times the weight of the extract to 75% ethanol to dissolve, and cool at -20°C 12h, filter off the residue to obtain the eth...
Embodiment 2
[0032] The yew solid perfume of the present embodiment and preparation method thereof, comprises the following steps:
[0033] Step 1. Pretreatment of raw materials: select fresh yew branches and leaves, wash them, dry them in an oven, control the temperature below 60°C, and then pulverize them with a particle size of 30-40 mesh;
[0034] Step 2, the extraction of volatile oil. Put 1 kg of crushed yew branches and leaves into Titian petroleum ether at 45°C for two consecutive extractions, adding 20 kg of Titian petroleum ether each time, and the extraction time is 3 hours for the first time and 1 hour for the second time. Combine the extract after filtering, remove the residue, and obtain the extract containing volatile oil;
[0035] Step 3, post-processing of the extract. Put the extract in a distiller to distill off the petroleum ether to obtain an extract; add 3 times the weight of the extract to 90% ethanol to dissolve, cool at -20°C for 24 hours, filter off the residue,...
Embodiment 3
[0038] The yew solid perfume of the present embodiment and preparation method thereof, comprises the following steps:
[0039] Step 1. Pretreatment of raw materials: select fresh yew branches and leaves, wash them, dry them in an oven, control the temperature below 60°C, and then pulverize them with a particle size of 30-40 mesh;
[0040] Step 2. Extraction of volatile oil: put 1 kg of crushed yew branches and leaves into Titian petroleum ether at 45°C for two consecutive extractions, adding 20kg of Titian petroleum ether each time, and the extraction time is 2.5 hours for the first time , the second time 1.5h. Combine the extract after filtering, remove the residue, and obtain the extract containing volatile oil;
[0041] Step 3, post-treatment of the extract: put the extract into a distiller to evaporate the petroleum ether therein to obtain an extract; add 5 times the weight of the extract to 80% ethanol to dissolve, and cool at -20°C After 24 hours, the residue was filte...
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