Lotus leaf-based preparation for treating phlegm and blood stasis simultaneously and application thereof
A technology of Hedan and preparation, applied in the application field of medicine, can solve the problems of low content of active ingredients and the like
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Embodiment 1
[0093] 1. (1) After the lotus leaf is crushed, add ethanol which is 4 times the weight of the lotus leaf and has a mass fraction of 60%, adjust the pH to 12.0, reflux and extract twice at 75°C for 2 hours each time, and collect the extract for later use;
[0094] (2) Add the residue of the lotus leaf medicinal material obtained in (1) to 4 times the weight of the residue and 85% ethanol, adjust the pH to 3.0, and reflux extraction at 75°C for 3 times, each time for 2 hours, and collect and extract Liquid standby;
[0095] (3) Centrifuge and filter the supernatant of the extract in (1), reclaim ethanol by distillation under reduced pressure, adjust the pH to 7.0, then centrifuge and filter, and get the supernatant to prepare a 3 mg / mL solution, pump Into the AB-8 macroporous resin column for adsorption, the loading volume is 4BV, after gradient elution with pure water, 20% ethanol 2BV each, and elution with 70% ethanol, the eluate is collected, and the ethanol is recovered unde...
Embodiment 2
[0105] 320g of lotus leaf extract, 160g of salvia miltiorrhiza extract, 240g of hawthorn extract, 160g of salt psoralen extract and 4g of senna leaf extract prepared in the 1-5 steps of embodiment 1 are mixed, add sugar powder, starch, Low-substituted hydroxypropyl cellulose and other auxiliary materials are used in appropriate amounts to prepare 1000 g of granules.
Embodiment 3
[0107] Mix 160g of lotus leaf extract, 20g of salvia miltiorrhiza extract, 120g of hawthorn extract, 20g of salt psoralen extract, and 6g of senna leaf extract prepared in steps 1-5 of Example 1, add starch, low-substituted hydroxyl Appropriate amount of auxiliary materials such as propyl cellulose, made into granules, and packed into 1000 capsules.
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