The effects of ethanol concentration, pressure, temperature on the extraction rates of CGA and CA was discussed with three factors and second power rotation regression mathematical model.

• 采用三因子二次通用旋转回归设计实验，结果表明：乙醇添加量、萃取压力和萃取温度对CGA的提取率有极显著的影响，乙醇添加量15%25、萃取压力63.；94MPa、萃取温度72℃和萃取3h后，CGA提取率的理论极值为44