响应面法优化柚皮精油的超临界CO_2萃取工艺  

Optimization of Supercritical CO_2 Fluid Extraction of Pomelo Peel Oil Using Response Surface Methodology

作　　者：张嫱[1] 杨馨[1] 

机构地区：[1]北方民族大学生命科学与工程学院,宁夏银川750021

出　　处：《食品研究与开发》2015年第20期96-99,共4页Food Research and Development

摘　　要：以平和琯溪蜜柚柚皮为原材料,运用响应面法优化超临界CO2萃取技术提取柚皮精油。根据BOX(BoxBenhnken)试验设计原理,确定萃取压力、萃取温度、萃取时间及二氧化碳流量对精油萃取率的影响。结果表明:超临界二氧化碳萃取柚皮精油的最佳工艺条件为萃取温度为59.97℃、萃取压力为25 MPa、萃取时间为150 min、二氧化碳流量为15 L/h,在此萃取条件下,柚皮香精油的萃取出油率为5.62%。The production of naringin of Guanxi honey pomelo , used carbon dioxide as a medium by supercritical fluid extraction technology to pomelo peel essential oil from pomelo skin , response surface methodology（RSM） was employed to optimize the extraction. According to the principle of Box-Behnken central composite design, extraction pressure, extraction temperature, extraction time and carbon dioxide flow rate were chosen as response factors, extraction mass as response value, and a four-factor and three levels central composite design was adopted to determine the influence of various technological conditions. The results showed that better extraction conditions were 59.97℃of temperature, 25 MPa of extracting pressure,150min of period, 15 L/h of CO2 flow rate. Under these conditions, the yield of pomelo skin oil was 5.62%.

关 键 词：柚皮精油 超临界流体萃取 响应面分析 

分 类 号：TS209[轻工技术与工程—食品科学] TQ028.32[轻工技术与工程—食品科学与工程]