超微粉碎联合超声辅助萃取制备人参总皂苷的研究

摘要

Ginsenoside is the most important active ingredients in ginseng. The process of superfine grinding and ultrasound-assisted extraction was used to extract ginsenoside from ginseng. The minimal average particle size of ginseng reached to 49.18μm by superfine grinding,only coarse powder of ginseng 1/3 to 1/4,and the effi-ciency of extraction of total ginsenoside was significantly improved. The optimum process conditions were as fol-lows:the average particle size of ginseng was 69.48μm;ethanol concentration was 50%;ultrasound time was 40 min,solution-material ratio was 40∶1 (mL/g);ultrasonic power was 200 W. The content of total ginsenoside was up to 8.564 mg/100 mL under above process conditions.%人参皂苷是人参中最重要的活性成分。通过超微粉碎联合超声波辅助提取技术制备了人参总皂苷。试验结果表明，超微粉碎后的人参微粉最小平均粒径可达到49.18μm，只有粗粉的1/3到1/4，并可以显著提高人参中总皂苷的提取效率。人参总皂苷提取的最佳提取条件是人参平均粒径为69.48μm，乙醇浓度为50%，超声功率为200 W，超声时间为40 min，液固比为40∶1（mL/g），此条件下的总皂苷含量为8.564 mg/100 mL。