Ethanol was chosen as the extract solvent from four kinds of solvents.Based on single factor experiment, the extraction conditions were optimized by orthogonally rotational combination design.

• 从4种常用试剂中选出乙醇作为提取剂，并在单因素试验的基础上，通过二次回归旋转组合设计试验，优化白藜芦醇提取的工艺参数。