超声辅助[C4mim]Br/(NH4)2SO4双水相提取柿叶中总黄酮  

Ultrasonic-assisted Extraction of Total Flavonoids fromPersimmon Leaves Using [C4mim]Br/(NH4)2SO4Aqueous Two-phase System

作　　者：周艳红[1] ZHOU Yan-hong(Shaanxi Institute of International Trade&Commerce,Xi'an 712046,China)

机构地区：[1]陕西国际商贸学院,陕西西安712046

出　　处：《皮革与化工》2020年第6期16-20,38,共6页Leather And Chemicals

基　　金：陕西省中药绿色制造技术协同创新中心项目(2019XT-1-04);陕西省教育厅专项科研计划项目(20JK0513)。

摘　　要：研究利用超声波辅助离子液体双水相提取柿叶中的总黄酮,并利用响应面法优化试验条件。结果表明,在料液比为1∶25(g∶mL)、提取时间为50 min、离子液体浓度为0.7mol/L、提取温度为60℃最优条件下,柿叶中总黄酮提取率可达到26.84 mg/g,与预测值(26.62 mg/g)接近。该方法稳定可行,重复性好,可用于提取柿叶中总黄酮。The total flavonoids in persimmon leaves were extracted by ultrasonic assisted ionic liquid double aqueous phase and optimized by response surface method.The results showed that under the optimal conditions of 1∶25(g∶mL)solid-liquid ratio,50 min extraction time,0.7 mol/L ionic liquid concentration and 60℃extraction temperature,the extraction yield of total flavonoids from persimmon leaves reached 26.48 mg/g,which was close to the predicted value(26.98 mg/g).The method is stable and reproducible,and can be used to extract total flavonoids frompersimmon leaves.

关 键 词：双水相提取 超声波辅助 柿叶 总黄酮 

分 类 号：R284.2[医药卫生—中药学]