Platanus occidentalis bark extract, preparation method and application in medical field
A technology of sycamore and extracts, applied in the field of medicine, can solve the problems of no public reports on anti-tumor activity, no public reports on triterpenoid components, and less research on chemical components and medicinal activities. , to achieve good economic and social benefits, simple methods, and abundant resources
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Embodiment 1
[0010] In the specific implementation of the present invention, it is characterized in that, get a ball of sycamore bark 1kg, add 50% ethanol (v / v) 8kg, place in a flash extractor and extract at room temperature for 1min, filter, and filtrate reclaims ethanol under reduced pressure at 50°C , concentrated to an extract with a specific gravity of 1.10, adding distilled water of the same quality as the extract, and then using ethyl acetate of the same quality as the extract for three times of microwave extraction, placed in an intermittent microwave extraction device for normal pressure extraction, each extraction Microwave radiation 1 time, each radiation time 2min, each interval time 5min, combine the ethyl acetate layer extract obtained 3 times, recover ethyl acetate under reduced pressure at 50°C, and dry under reduced pressure at 50°C to obtain a ball of Platanus bark Triterpenes extract; the solution extracted by ethyl acetate evaporated the ethyl acetate at 60°C, freeze-dri...
Embodiment 2
[0012] In the present invention, 5 kg of sycamore bark is taken, and 100 kg of 80% ethanol (v / v) is added, placed in a flash extractor for extraction at room temperature for 5 minutes, filtered, and the filtrate is decompressed at 50° C. to recover ethanol, concentrated to a specific gravity of 1.20 Add distilled water with the same quality as the extract, then use ethyl acetate microwave extraction with the same quality as the extract for 3 times, place it in an intermittent microwave extraction device for normal pressure extraction, and extract microwave radiation for 5 times each time. The second radiation time is 5 minutes, and the interval time is 20 minutes each time. Combine the ethyl acetate layer extracts obtained three times, recover the ethyl acetate under reduced pressure at 50°C, and dry under reduced pressure at 50°C to obtain a ball of the triterpenoid component extract of the sycamore bark ; Ethyl acetate extracted solution was evaporated at 60°C, freeze-dried, ...
Embodiment 3
[0014] Take a ball of Platanus bark 7kg, add 98kg of 65% ethanol (v / v), place it in a flash extractor and extract at room temperature for 2.5min, filter, and recover the ethanol from the filtrate under reduced pressure at 50°C, concentrate to an extract whose specific gravity is 1.15, Add distilled water with the same quality as the extract, then use ethyl acetate with the same quality as the extract for three times of microwave extraction, place it in an intermittent microwave extraction device for normal pressure extraction, and extract microwave radiation for 3 times each time, each irradiation time is 2.5 min, each interval time is 12min, combine the obtained ethyl acetate layer extracts for 3 times, recover ethyl acetate under reduced pressure at 50°C, and dry under reduced pressure at 50°C to obtain a triterpenoid component extract of Platanus bark; ethyl acetate Ethyl acetate was evaporated from the solution after ester extraction at 60°C, freeze-dried, dissolved in dist...
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