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| 内蒙甘草中总黄酮的提取工艺优化
摘要
目的：通过优化内蒙甘草总黄酮的提取工艺，为甘草资源的开发利用提供理论依据。
方法：以内蒙甘草为原材料，乙醇为提取溶剂，采用超声波提取法，通过单因素试验和正交试验来确定内蒙甘草总黄酮提取的最佳工艺条件。以黄酮提取率为指标，考察乙醇提取浓度、料液比、提取温度、提取时间对内蒙甘草黄酮含量的影响。
结果：对内蒙甘草总黄酮提取率的影响因素主次顺序为：料液比＞乙醇浓度＞超声时间＞超声温度；超声波法提取甘草总黄酮的最佳工艺条件为：乙醇浓度70%，超声提取温度50℃，超声提取时间30min，料液比1:20，在此工艺条件下，甘草总黄酮的提取率最高为1.41%。
结论：超声波法提取内蒙甘草总黄酮简便可行，为甘草总黄酮的进一步研究提供了理论基础。
关键词：甘草总黄酮；超声波提取；工艺条件优化
ABSTRACT
Objectives: By optimizing the extraction process of the total flavonoids of licorice in Inner Mongolia, it provides a theoretical basis for the development and utilization of licorice resources.
Methods: Inner licorice as a raw material, ethanol as a extraction solvent,ultrasonic extraction method,through single-factor test and orthosoltic test to determine the best process conditions for the extraction of licorice total flavonoids. The effects of ethanol extraction concentration, liquid ratio,extraction temperature and extraction time on the content of inner licorice flavonoids were examined by the index of flavonoid extraction rate.
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