超临界二氧化碳萃取大蒜油  

Extraction of garlic oil with a freeze-drying treatment and supercritical carbon dioxide

作　　者：翟国栋[1] 管鑫[2] 潘光民[1] 管从胜[1] 杜爱玲[1] 

机构地区：[1]山东大学化学与化工学院,山东济南250061 [2]山东大学生命科学学院,山东济南250100

出　　处：《山东大学学报（工学版）》2007年第5期103-107,共5页Journal of Shandong University（Engineering Science）

基　　金：山东省科技厅攻关计划项目(021010103)

摘　　要：采用冷冻干燥和超临界二氧化碳萃取相结合技术萃取大蒜油,通过均匀设计在萃取率和萃取温度、萃取压力、萃取时间、CO2流量之间建立了理论模型,确定了SC-CO2萃取大蒜油的最佳工艺参数:萃取压力25MPa,萃取温度45℃,萃取时间5h,CO2流量44kg/h,在此条件下萃取率可达1.19%.Extraction of garlic oil with a freeze-drying treatment and supercfitical carbon dioxide was studied. The relationship between extraction ratio and extraction temperatttre, pressure, time and the flux of CO2 were given by using a uniform design. The optimum extraction conditions are as following, extraction pressure 25MPa, temperature 45℃, time 5 h and flux of CO2 44 kg/h. The extraction ratio is about 1.19% at these extraction conditions.

关 键 词：冷冻干燥 超临界萃取 均匀设计 

分 类 号：Q949.718.23[生物学—植物学] R284[医药卫生—中药学]