[ Objective ] This study aimed to establish the optimal extraction technology of total flavonoids from Vitex rotundifolia and provide a theoretical basis for the utilization and development of V. rotundifolia. [ Metho...[ Objective ] This study aimed to establish the optimal extraction technology of total flavonoids from Vitex rotundifolia and provide a theoretical basis for the utilization and development of V. rotundifolia. [ Method ] With the extraction temperature, extraction time, solid-liquid ratio and ethanol concentration as various factors, the content of total flavonoids as an indicator, the extraction technology of total flavonoids from V. rotundifolia was optimized by orthogonal experiment. [ Result] The optimal combination of extraction conditions was extraction temperature 70℃, extraction time 1 h, solid-liquid ratio 1: 12, ethanol concentration 70%. [Condusion] The optimized extraction technology was simple and efficient for extracting total flavonoids from V. rotundifolia.展开更多
目的确定实验室超声波提取连翘叶总黄酮、总酚酸的最佳处理条件。方法采用正交设计法对甲醇浓度(A)、超声时间(B)、提取次数(C)和提取温度(D)4个因素进行考察,确定最优超声提取条件。结果因素D和C对测定指标均有显著性影响,因素A、B为...目的确定实验室超声波提取连翘叶总黄酮、总酚酸的最佳处理条件。方法采用正交设计法对甲醇浓度(A)、超声时间(B)、提取次数(C)和提取温度(D)4个因素进行考察,确定最优超声提取条件。结果因素D和C对测定指标均有显著性影响,因素A、B为不显著因素。结论以60%甲醇,超声时间10 m in/次,提取3次,提取温度45℃为最佳超声提取条件。展开更多
基金Supported by National Natural Science Foundation of China(31170320)
文摘[ Objective ] This study aimed to establish the optimal extraction technology of total flavonoids from Vitex rotundifolia and provide a theoretical basis for the utilization and development of V. rotundifolia. [ Method ] With the extraction temperature, extraction time, solid-liquid ratio and ethanol concentration as various factors, the content of total flavonoids as an indicator, the extraction technology of total flavonoids from V. rotundifolia was optimized by orthogonal experiment. [ Result] The optimal combination of extraction conditions was extraction temperature 70℃, extraction time 1 h, solid-liquid ratio 1: 12, ethanol concentration 70%. [Condusion] The optimized extraction technology was simple and efficient for extracting total flavonoids from V. rotundifolia.
文摘目的确定实验室超声波提取连翘叶总黄酮、总酚酸的最佳处理条件。方法采用正交设计法对甲醇浓度(A)、超声时间(B)、提取次数(C)和提取温度(D)4个因素进行考察,确定最优超声提取条件。结果因素D和C对测定指标均有显著性影响,因素A、B为不显著因素。结论以60%甲醇,超声时间10 m in/次,提取3次,提取温度45℃为最佳超声提取条件。