玫瑰精油超临界二氧化碳萃取的试验研究  

Study on Supercritical Carbon Dioxide Extraction of Rose Essential Oil

作　　者：方向[1] 朱跃钊[1] 凌祥[1] 廖传华[1] 

机构地区：[1]南京工业大学机械与动力工程学院,江苏南京210009

出　　处：《林产化学与工业》2010年第3期83-87,共5页Chemistry and Industry of Forest Products

基　　金：济南市高新开发区科技计划专项基金(200528)

摘　　要：采用正交试验和单因素试验相结合的方法对超临界CO2萃取法提取玫瑰精油的工艺进行了研究。得到了最佳萃取条件为:压力20 MPa,温度65℃,粒径250μm,CO2循环流量25 L/h,此条件下玫瑰精油的得率可达到5.225 7%。各因素的影响大小依次为:粒径、流量、温度、压力。试验还在萃取釜中布置了气体分布器。实验结果表明,在小粒径的条件下气体分布器可以更加有效的增加精油的得率,且不会影响到萃取釜中流体的流动速度。The process of extracting essential oil from rose flowers（Rosa rugosa var.plena）using supercritical carbon dioxide was studied.Analysis results via orthogonal experiment and single-factor experiment were obtained.The results showed that the optimum extraction conditions were as follows： particle size 250μm,CO2 circulation flow rate 25L/h,temperature 65℃ and pressure 20MPa.Under these conditions,the yield of rose essential oil can reach 5.2257% The yield of essential oil was significantly affected by particle size,supercritical fluid flow rate,extraction temperature and pressure.The result also showed that,under the condition of small particle size,gas distributor could increase the yield effectively,which did not influence the fluid flow speed in the extraction vessel.

关 键 词：超临界CO2萃取 玫瑰 精油 

分 类 号：TQ351.0[化学工程]