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China Pharmacist ; (12): 571-573, 2014.
Article in Chinese | WPRIM | ID: wpr-446902

ABSTRACT

Objective:To optimize the alcohol precipitation technology of Qingmai granules. Methods:The relative density of liq-uor,the concentration and time of alcohol precipitation were chosen as the factors,the yield of dry extract and content of diosgenin as the indices,the alcohol precipitation technology was optimized by orthogonal test. Results:The optimal alcohol precipitation technology was as follows:the extraction liquid was concentrated till the relative density was 1. 13-1. 18 g·ml-1 ,ethanol was added until the concen-tration was up to 60% with the alcohol precipitation time of 24h. Conclusion:The optimized technology is stable,reasonable and feasi-ble,which can provide experimental basis for the clinical application of Qingmai granules.

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