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目的:研究无患子油超临界CO2萃取工艺及其成分分析。方法:以无患子为材料,采用响应曲面法优化无患子油超临界CO2萃取工艺,并采用GC-MS对无患子油成分进行分析。结果:建立了一个能较好预测萃取结果的数学模型,并根据该方程对无患子油的超临界萃取工艺参数进行了优选。确定了无患子油超临界CO2萃取最佳工艺为:萃取压力30 MPa,萃取温度40℃,分离Ⅰ压力14 MPa、温度45℃,分离Ⅱ压力6 MPa、温度40℃,萃取时间60 min,得率为17.58%;并对无患子油进行了GC-MS分析,鉴定了22种成分,其中不饱和脂肪酸含量为86.59%。结论:优化后的工艺合理可行,操作简单,可用于无患子油的提取。
Objective: To study the supercritical CO2 extraction technology and its components analysis of the suet oil. Methods: Using the Sapindus paraguay as material, the supercritical CO2 extraction technology of the suet oil was optimized by response surface methodology. The composition of the suet oil was analyzed by GC-MS. Results: A mathematical model was established to predict the extraction results well. Based on this equation, the optimal extraction parameters of the plant oil were optimized. The optimum conditions of extraction of supercritical CO2 were as follows: extraction pressure 30 MPa, extraction temperature 40 ℃, separation Ⅰ pressure 14 MPa, temperature 45 ℃, separation Ⅱ pressure 6 MPa, temperature 40 ℃, extraction time 60 min, The yield was 17.58%. The GC-MS analysis showed that there were 22 components identified, of which the unsaturated fatty acid content was 86.59%. Conclusion: The optimized process is reasonable and feasible, simple operation, can be used for the extraction of suet oil.