Platycodin D sperm-killing contraceptive suppository for external use and placing device thereof
A platycodon saponin and spermicidal technology, which is applied in the direction of female contraceptives, suppository delivery, other medical devices, etc., can solve problems such as no reports on spermicidal research, and achieve a strong spermicidal effect.
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[0016] The present invention will be further described below.
[0017] 1. Preparation of Campanulaceae saponin extract:
[0018] Accurately weigh 50g of bellflower sample powder, place it in a 500mL Erlenmeyer flask, add 300mL of 70% methanol, soak for 24 hours, ultrasonicate for 30 minutes, repeat 4 times, centrifuge, filtrate is recovered under reduced pressure to obtain extract, add 300mL of acetone for precipitation After filtration, the filtrate was recovered to obtain the extract, which was added to 300mL of water, transferred to a separatory funnel, and extracted twice with 300mL of ether. Discard the ether layer, add 300mL of water to the water layer, extract with saturated n-butanol 4 times, combine the n-butanol layers and recover under reduced pressure to obtain the extract, and finally precipitate with 500mL of ether to remove impurities, and dry the precipitate to obtain a white powder substance 280 mg. Accurately weigh 50 mg of white powder, and dissolve it in ...
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