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在样品粒度为６０ 目时，采取静态、动态萃取相结合的操作方式，研究了萃取压力、温度及ＣＯ２ 体积对花椒挥发油萃取的影响。结果发现，萃取压力为３４．４７５ ＭＰａ，温度为５５℃，ＣＯ２ 体积为３０ ｍ Ｌ时，萃取花椒挥发油效果较好，３ 因素的主次关系为：温度＞ ＣＯ２体积＞ 压力
The effect of extraction pressure, temperature and CO2 volume on the extraction of volatile oil from Zanthoxylum bungeanum was studied when the sample size was 60 meshes. The static and dynamic extraction methods were used. The results showed that the optimum extraction conditions were as follows: extraction temperature 34.475 MPa, temperature 55 ℃, CO2 volume 30 m L,