超临界萃取琯溪蜜柚精油工艺优化及组分分析  

Studies on essential oil extracting process optimization by supercritical CO_2 and chemical components analysis of Guanxi honey pomelo

作　　者：李松[1] 吴光斌[1] 陈发河[1] 

机构地区：[1]集美大学生物工程学院,福建厦门361021

出　　处：《食品与机械》2013年第1期113-117,156,共6页Food and Machinery

基　　金：厦门市科技计划项目(编号:3502Z20103024)

摘　　要：以琯溪蜜柚果皮为原料,通过超临界萃取技术(SFE)制取琯溪蜜柚精油,经响应面优化,获得最佳提取条件:时间92.40min,温度38.22℃,压力18.26MPa,该条件下产物得率为10.28%;经过GC/MS鉴定表明,超临界萃取产物共鉴定出52种成分,占出峰物质总量的96.36%。其中烃类物质26种高达95.14%,含氧化合物仅占1.22%。Essential oil extracted from Guanxi honey pornelo peel by Supercritical Carbon Dioxide （SFE）. The response surface methodol- ogy （RSM） was used to optimization. By single factor test, the in- fluences of extraction pressure, extraction temperature and extrac- tion time on extraction rate of total essential oil from Guanxi honey pomelo were investigated. The optimum conditions for extraction rate were time 92. 40 min, temperature 38. 22℃, pressure 18.26 MPa. Under these optimum conditions, the extraction rate is 10.28%. The oil compounds were analyzed by gas chromatography- mass spectrometry （GC--MS）. 52 major components were identified covering 96.36% of the total, including 26 hydrocarbons （95.14%） and oxy compound （ 1.22 % ）.

关 键 词：精油 琯溪蜜柚 超临界萃取 GC MS 

分 类 号：TS225.1[轻工技术与工程—粮食、油脂及植物蛋白工程]