摘要
应用超临界CO2萃取技术提取黄芪皂苷,以黄芪甲苷提取率为衡量指标,考察了原料粒度、夹带剂种类,正交试验设计考察了压力、温度、时间和夹带剂用量对黄芪甲苷提取率的影响。结果表明:黄芪皂苷的最佳工艺条件为粉碎粒度60目,压力35MPa,温度45℃,夹带剂为95%乙醇,夹带剂用量为4mL/g,CO2流量3.7L/H,萃取时间2.5h,此条件下黄芪甲苷提取率为0.234mg/g。
This paper investigated the effects of material granularity and the species of cosolvent using the technology of supercritical CO2 extraction to extract asragaloside from asragalus,and the astragalosides were chosen as the detective index and the optimum extraction condition and the orthogonal test were used to investigate the effects of pressure,temperature,extracting time,the species of cosolvent on the extracting rate of the astragalus glycoside.The results indicated that the optimal conditions of extracting the astragalus glycoside were： the size was 60 mesh,the ratio of CO2 fluid was 3.7L/H,pressure was 35MPa,at 45℃ for 2.5h,using 95% ethanol as cosolvent,cosolvent was 4mL/g,The extracting rate of the astragalus glycoside was 0.234mg/g.
出处
《食品与发酵科技》
CAS
2011年第4期42-44,共3页
Food and Fermentation Science & Technology
关键词
超临界流体萃取
黄芪皂苷
黄芪
supercritical fluid Extraction
astragaloside
astragalus
