【摘要】 目的:优化重楼皂苷类成分的提取工艺。方法:以重楼皂苷Ⅰ、重楼皂苷Ⅱ及重楼总皂苷的提取率为因变量,以乙醇体积分数、提取时间、溶剂倍量为自变量,进行多元线性回归及二项式拟合,用效应面法优选最佳工艺,并进行预测。结果:重楼皂苷类成分最优提取工艺为加入80%乙醇10倍量,回流提取2次,每次100 min。采用该提取工艺,重楼皂苷Ⅰ提取率分别为85.4%、82.7%、87.1%,重楼皂苷Ⅱ提取率分别为85.9%、81.3%、83.6%,重楼总皂苷提取率分别为89.5%、92.1%、90.3%(RSD均小于2.0%);总评价指标实测值为0.964 9,预测值为0.986 0,偏差率为2.14%。结论:星点设计-效应面法优选重楼皂苷类成分提取工艺,方法简单,结果可靠。更多还原

【Abstract】 OBJECTIVE:To optimize extraction technology of saponins from Paris polyphylla. METHODS:Using paris saponin Ⅰ,paris saponin Ⅱand Paridis total saponin as dependent variables,using ethanol volume fraction,extraction time and solvent amount as independent variables,through multiple linear regression and binomial fitting,the extraction technology was optimized with response surface method and predicted. RESULTS:The optimized extraction technology of saponins from P. polyphylla was as follows as 10-fold of 80% ethanol,2 times reflux extraction,100 min each time. Under the extraction technology,the extraction rates of paris saponinⅠwere 85.4%,82.7% and 87.1%;those of paris saponinⅡwere 85.9%,81.3% and 83.6%;and those of Paridis total saponin were 89.5%,92.1% and 90.3%(all RSD<2.0%). Measured value was 0.964 9,predicted value was 0.986 0 and deviation rate was 2.14%. CONCLUSIONS:The central composite design-response surface method is simple and reliable for the optimization of extraction technology of saponins from P. polyphylla.更多还原