超声波-表面活性剂协同萃取黄姜中薯蓣皂苷的工艺研究

研究超声波- 表面活性剂协同萃取黄姜中薯蓣皂苷的最佳萃取工艺条件。通过单因素试验和正交试验考察超声频率、时间、料液比、表面活性剂浓度对薯蓣皂苷得率的影响。结果得到最佳萃取条件为常温，料液比1:14(g/mL，黄姜粉末:表面活性剂水溶液)、十二烷基硫酸钠浓度8.6 × 10-3mol/L、超声频率25.8kHz、萃取时间40min，黄姜中薯蓣皂苷得率达到6.50%，比水萃取高3.33%。

Optimal Process Conditions for the Ultrasonic-assisted Surfactant Extraction of Dioscin from Dioscorea zingiberensis C. H. Wright

The optimal ultrasonic-surfactant extraction of dioscin from Dioscorea zingiberensis C. H. Wright was studied. The effects of ultrasonic frequency, ultrasonic treatment time, material/liquid ratio and surfactant concentration on the extraction rate of dioscin were explored through single factor and orthogonal array experiments. The optimal conditions for the extraction of dioscin were determined as follows: material/liquid ratio, 1:14; surfactant concentration, 8.6×10-3 mol/L; ultrasonic frequency, 25.8 kHz; and ultrasonic treatment time, 40 min. The extraction rate of dioscin reached up to 6.50% under the optimal extraction conditions, which was higher than that of 3.33% using water extraction. This extraction method is characteristics of high yield, time-saving, energy-saving and pollution-free advantages.