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.
出处
《山东大学学报（工学版）》
CAS
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)
关键词
冷冻干燥
超临界萃取
均匀设计
freeze-drying
supercritical CO2
uniform design
