本文研究了微波辅助正己烷法萃取橙皮中的橙皮精油，并用响应曲面法对工艺进行了优化。通过单因素试验确定了编码参数，采用响应曲面法考察了萃取时间、萃取温度、萃取剂用量对橙皮精油萃取得率的影响。结果表明微波辅助正己烷法萃取橙皮精油的最佳工艺条件为：萃取时间7 min、萃取温度57 ℃、萃取剂用量为275 mL，在此条件下橙皮精油的得率最高，为2.221%。

The response surface methodology (RSM) was adopted to optimize the microwave-assisted n-Hexane extraction of essence oil from orange peel. By single factor test, the impacts of extraction time, extraction temperature and the dose of extraction agent on extraction rate of total essence oil from orange peel were investigated. The results showed that the optimal microwave-assisted n-Hexane extraction conditions for essence oil from orange peel were as follows: extracting time 7 min, temperature 57 ℃ and the dose of extraction agent 275 mL. Under those conditions, the maximum value of the extraction rate was up to 2.221%.

西华大学“西华杯”学生科技基金项目资助（20100365）