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金钗石斛总生物碱的提取条件优化

Guizhou Agricultural Sciences(2016)

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Abstract
为科学合理开发金钗石斛药材资源,采用单因素试验分析提取温度、乙醇浓度、提取时间、固液比和提取次数对金钗石斛总生物碱含量的影响,酸碱滴定法测定总生物碱含量.在此基础上,运用正交试验对乙醇浓度、提取时间、固液比和提取次数进行优化.结果表明:金钗石斛总生物碱提取制备的最佳条件为提取温度85℃,乙醇浓度90%,提取时间3h,固液比1∶20,提取次数为2次,在该条件下金钗石斛总生物碱的平均提取率为87.8 mg/g.
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