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2012•Zhongguo shiyan fangjixue zazhiRequires access

Optimization of Alcohol Precipitation Technology for Qingyan Buccal Tablet

Zhou Qin-mei

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Abstract

Objective:To optimize alcohol-precipitation technology of Qingyan buccal tablet.Method:Relative density of liquor,the concentration of alcohol precipitation and temperature of liquor were chosen as factors,with transfer rate of acetylharpagide and yield of drying extract as indexes,alcohol precipitation technology was optimized by single-factor test and orthogonal test.Result:Optimal alcohol precipitation technology was as follow:concentrated extraction liquid to its relative density 1.13,added ethanol until the concentration of 70%,liquor temperature 60 ℃,rest for 24 h in condition of cold storage.Conclusion:This optimized technology was simple,practicable and suitable for practical production.

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What this paper is about

Objective:To optimize alcohol-precipitation technology of Qingyan buccal tablet.Method:Relative density of liquor,the concentration of alcohol precipitation and temperature of liquor were chosen as factors,with transfer rate of acetylharpagide and yield of drying extract as indexes,alcohol precipitation technology was optimized by single-factor test and orthogonal test.Result:Optimal alcohol precipitation technology was as follow:concentrated extraction liquid to its relative density 1.13,added ethanol until the concentration of 70%,liquor temperature 60 ℃,rest for 24 h in condition of cold storage.Conclusion:This optimized technology was simple,practicable and suitable for practical production.

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Available abstract

Objective:To optimize alcohol-precipitation technology of Qingyan buccal tablet.Method:Relative density of liquor,the concentration of alcohol precipitation and temperature of liquor were chosen as factors,with transfer rate of acetylharpagide and yield of drying extract as indexes,alcohol precipitation technology was optimized by single-factor test and orthogonal test.Result:Optimal alcohol precipitation technology was as follow:concentrated extraction liquid to its relative density 1.13,added ethanol until the concentration of 70%,liquor temperature 60 ℃,rest for 24 h in condition of cold storage.Conclusion:This optimized technology was simple,practicable and suitable for practical production.

Key concepts: Precipitation, Alcohol, Chromatography, Ethanol, Relative density, Yield (engineering), Protein precipitation, Extraction (chemistry)

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