中文摘要：

目的：优化云南松松塔中原儿茶酸的提取工艺。方法：以不同溶剂对云南松松塔中原儿茶酸的提取效率为指标,用高效液相色谱法进行含量测定,采用L9（3^4）正交设计试验以确定最佳提取工艺。结果：最佳提取工艺：以乙酸乙酯为提取溶剂,加入0.1 mol/L的HCl 3 mL,料液比为1∶40（mg/mL）,超声时间90 min,超声温度40℃。结论：优化后的提取工艺简单、稳定、提取率高。

英文摘要：

Objective：To optimize the extraction process of the pinecone of protocatechuic acid in Pinus yunnanensis. Methods： Different solvents were used to extract protocatechuic acid in Pinus yunnanensis. Their extraction efficiency was taking as index; content was determined by using HPLC chromatography. Finally,L9（3^4）orthogonal design experiment was used to determine the optimum the extraction process. Results：The optimum extraction process：with ethyl acetate as the extraction solvent,0.1 mol/L HCl 3 mL was added into it. Material-liquid ratio was 1∶40（mg/mL）;ultrasonic time 90 min;ultrasonic temperature 40 ℃. Conclusion： The Optimized extraction process is simple,stable and have high extraction rate.