【摘要】 本文对超临界CO₂萃取和乙醇回流萃取花椒油风味物质的方法进行了比较,并用气相色谱-质谱对提取物进行组成鉴定。结果表明,超临界CO₂萃取法具有提取率高、萃取成分全面、提取时间短、无溶剂残留等优点。同时由正交试验得到超临界CO₂萃取的最佳工艺：原料粒度40目,萃取时间1．0h,温度45℃,压力33MPa。更多还原

【Abstract】 In this paper,the spercritieal CO₂extraction method was compared with ethanol distillation extraction method,and GC-MS was used as determination method.The results indicated that supercritical CO₂extraction has advantages of high efficiency,high selectivity,short distilling time and less solvent residue.The optimum technical condition of supercritical CO₂ extraction were found through orthogonal experiment:particle size 40W,operating time 1.0h,temperature 45℃,working pressure 33MPa.更多还原