【作者】 沈强； 陈林； 司辉清；

【机构】 西南大学食品科学学院； 重庆大学化学化工学院；

【摘要】 利用响应曲面法优化微波辅助水蒸气蒸馏提取腊梅花精油的工艺研究过程中,采用Box-Benhnken中心组合设计的原理,选取了蒸馏时间、料液比、微波功率为响应因子,以腊梅花精油提取率为响应值,构建了二次回归方程的预测模型。研究结果表明,微波辅助水蒸气蒸馏提取腊梅花精油的最佳工艺参数为:蒸馏时间为2.2h、料液比为1:12、微波功率为530w。在此条件下,平均提取率达到0.615%(w/w)。更多还原

【Abstract】 Response surface methodology was applied to optimize on essential oils from Chimonanthus Praecox flowers with microwave-assisted hydrodistillation. The effects of distillation time, material to water ratio, microwave power on the extraction rate of essential oil from Chimonanthus Praecox flowers by microwave-assisted hydrodistillation were studied, and a predictive polynomial quadratic model was set up by Box-Benhnken central composite design. It is found that the average ratio of oil extraction is 0.615%(w/w) at the material to water ratio of 1:12, with a microwave power of 530w within 2.2h, which are the optimum technological parameters for extracting essential oil from the Chimonanthus praecox flowers.更多还原