Externally used medicament and preparation method thereof
A technology for external use of drugs and extracts, which can be used in pharmaceutical formulations, drug combinations, drug delivery, etc., and can solve problems such as no literature mentions, no product disclosure, etc.
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Embodiment 1
[0018] The preparation of embodiment 1-litchi core extract
[0019] 500 grams of lychee cores, pulverized, water and acetone with a weight ratio of 1:2 and 2.5 liters of mixed solvents for extraction 2-3 times, each time for 1-2 hours, the extraction temperature is 55-65 ° C, concentrated at 70 Under the condition of ℃, dry in a vacuum oven for 6 hours to obtain the litchi seed extract with a water content of 2.8%.
Embodiment 2
[0020] The preparation of embodiment 2-litchi core extract
[0021] 500 grams of lychee cores, pulverized, extracted 2-3 times with 3 liters of mixed solvents with a weight ratio of water and ethanol of 1:3, each time for 1-2 hours, concentrated and placed in a vacuum oven for 5 hours at 80°C , to obtain the litchi core extract with a water content of 2.9%.
Embodiment 3
[0022] The preparation of embodiment 3-litchi core extract
[0023] 500 grams of lychee cores are pulverized and extracted 2-3 times with 2.5 liters of mixed solvent with a weight ratio of water and acetone of 1:2, each time for 1-2 hours, concentrated and spray-dried to obtain the lychee core extract. The part content is 3.1%.
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Abstract
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