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中文摘要: 采用表面活性剂辅助微波法提取阳荷中的黄酮。研究了表面活性剂种类及其添加量、微波辐射功率、辐射时间、料液比和pH对黄酮收率的影响。以单因素试验为基础，通过正交试验优化了黄酮的提取工艺。确定较佳工艺条件为：pH=4.0，料液比1∶40 (g∶mL)，表面活性剂十二烷基硫酸钠质量分数10.5%，微波辐射时间2.4 min，微波辐射功率550 W。在此条件下，黄酮的收率为12.7%。相比于热回流法、超声提取法和微波提取法，通过表面活性剂辅助微波提取，阳荷中黄酮收率分别提高了41.1%，56.8%和46.0%。该法提取效率高、工艺简单。
Abstract:Flavonoids was extracted from Zingiber striolatum Diels under assistance of microwave as well as surfactant. The effects of the type and amount of surfactant, microwave irradiation power, irradiation time, base material to liquid ratio and pH value on the yield of flavonoids were examined. On the basis of single factor experiment, the extraction technology of flavonoids was optimized by orthogonal experimental design. The recommended conditions were determined as follows: the mass fraction of surfactant sodium dodecyl sulfonate, 10.5%; microwave irradiation power, 550 W; microwave irradiation time, 2.4 min; based material to liquid ratio, 1∶40 (g∶mL); pH=4.0. The average yield of the total flavonoids achieves 12.7%. As comparing with the hot reflux method, ultrasonic extraction method and microwave extraction method, the extraction rate of flavonoids was increased by 41.1%, 56.8% and 46.0%, respectively. The method shows high extraction efficiency and simple operation.
keywords: additive of cosmetics flavonoids of Zingiber striolatum Diels microwave extraction surfactant
文章编号： 中图分类号：TQ658 文献标志码：
|MA Ming-lan||Wuchang University of Technology, Wuhan, Hubei 430023, China|