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[Study on extraction and purification technology of Hubei ophiopogon saponins]
Yun-Han Lin1, Chong-Ming Li, Xiao-Dong Li
1School of Chemical Engineering, Wuhan University of Techology, Wuhan 430070, China.
Objective:
To explore the extraction and purification technology of total saponins from the effective parts of Liriope spicata.
Methods:
Orthogonal design was used. Macroporous resin was selected to separate and purify total saponin from the effective parts of Liriope spicata. The process validation was conducted. The total saponins was determined by Ultraviolet Spectrophotometry.
Results:
The optimal extraction conditions were as follows: 10 times the amount of ethanol (70%) for each occasion and hot reflux (3 x 2 h). Total saponins was purified by D101 macroporous resin. The concentration of eluting ethanol was 50% - 70%. Ethanol (70%) was selected as the best eluent. The result of process validation was consistent with the study.
Conclusion:
The process is simple and stable enough to significantly improve the extraction rate of the effective parts. The study can provide reference for the research and production of effective parts of traditional Chinese medicine such as Liriope spicata.
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