MethodsBy the orthogonal design and gas chromatography,taking the rate of Bornyl Acetate as the index,we optimized the extracting process conditions of volatile oil from Amomum villosum etc.

• 方法以乙酸龙脑酯收率为指标，采用气相色谱仪,运用正交设计法优选砂仁复方挥发油提取工艺条件。