基于提取效率和成本控制的红参提取工艺多目标优化研究

Multi-objective optimization of extraction process for red ginseng based upon extraction efficiency and cost control

该文使用实验设计的理念对红参提取工艺进行多目标优化研究,实现在操作空间内提取单位药效物质的成本最低。实验以红参提取液总皂苷提取量及提取物纯度为指标,以一提时间、一提溶剂倍量、二提时间、二提溶剂倍量为控制条件,采用Box-Behnken实验设计,建立指标模型;同时,以溶剂成本和能耗成本构建成本模型;通过指标和成本两者之比建立目标函数用以反应单位指标所需成本,最后通过相关约束条件求解最优提取工艺。最优提取工艺条件为一提时间108.7 min、一提溶剂倍量12、二提时间30 min、二提溶剂倍量8,此时提取每1 mg皂苷所需成本最低。结果表明,该方法可用于参考指导实际红参提取过程的多目标综合优化。

It is the objective of this study to optimize the extraction process of red ginseng to minimize the unit cost of extracting effective ingredients. The relation between the target variables of total quantity of ginsenosides and first extraction time, first extraction solution amount, second extraction time, second extract solution amount were studied with Box-Behnken experimental design method. At the same we also considered the cost of extraction solution and energy usage. The objective function was set as unit cost of target （ total quantity of ginsenosides or its purity） for the multi-objective optimization of extraction process. As a result, the optimal process parameters were found as first extraction time （108.7 min）, first extraction solution amount folds （12）, second extraction time （30 min）, second extraction solution amount folds （8） to minimize the unit cost. It indicated that this approach could potentially be used to optimize industrial extraction process for manufacturing Chinese medicine.