【摘要】 为获得超声辅助提取香薷挥发油的最佳工艺参数,采用Box-Behnken设计,以料液比、提取温度、超声时问为自变量,香薷挥发油的得率为因变量,对影响香薷挥发油提取工艺的因素进行了优选。结果表明:3个因子对香薷挥发油得率的影响大小依次为提取温度>超声时间>料液比,提取温度、超声时间对提取效果有极显著影响,料液比对提取效果有不显著影响,且交互作用都不显著,二次项都极显著。通过软件模拟优化后得到超声辅助提取香薷挥发油的最佳工艺参数为:液料比12.1mL/g,提取温度56.8℃和超声时间31min,香薷挥发油的得率为3.868%。Box-Behnken设计优选香薷挥发油的提取工艺,方法简单,预测性良好,对工业生产优化香薷挥发油的提取工艺提供了可行性依据。更多还原

【Abstract】 The optimal parameters of the extraction technology of volatile oil from Moslae herba were studied.The experiment took solvent to material ratio,extraction temperature and ultrasonic time as independent variables and extraction rate of volatile oil as the dependent variable to optimize the extraction techniques by Box - Behnken design.The result showed that the influencing order of three factors on the extraction rate of volatile oil was:extraction temperature, ultrasonic time and solvent to material ratio.Extraction temperature and ultrasonic time had a very significant effect on extraction rate,and solvent to material ratio had a least effect.The interactions between solvent to material ratio and extraction temperature,solvent to material ratio and ultrasonic time,extraction temperature and ultrasonic time were insignificant. But all of the quadratic terms were very significant.The optimum extraction parameters were;solvent to material ratio 12.1mL/g,extraction temperature 56.8℃and ultrasonic time 31min.Under the optimum conditions, the extraction rate of volatile oil reached to 3.868%.Box - Behnken design for extracting volatile oil from Moslae herba was simple,highly predictive.It provides a basis for extraction of volatile oil from Moslae herba for industrial production.更多还原