Supercritical CO 2 extraction was applied to the extraction of flavonoids from licorice. The optimized conditions are: CO 2 pressure 30 MPa, temperature 50 ℃, solid to entrainer ratio 1∶5(g/mL), CO 2 flow rate 10 kg...Supercritical CO 2 extraction was applied to the extraction of flavonoids from licorice. The optimized conditions are: CO 2 pressure 30 MPa, temperature 50 ℃, solid to entrainer ratio 1∶5(g/mL), CO 2 flow rate 10 kg/h, separation pressure 5.5 MPa temperature 40 ℃. Results showed that the flavonoids yield obtained by supercritical CO 2 extraction was 2.2 times that obtained by common solvent extraction method.展开更多
通过单因素试验考察了超临界二氧化碳萃取芫荽籽油中萃取压力、二氧化碳流量、萃取时间、萃取温度对芫荽籽油萃取率的影响,得出萃取的较佳工艺条件为:萃取压力20 MPa、二氧化碳流量30 L/h、萃取时间180 m in、萃取温度42℃,芫荽籽油萃...通过单因素试验考察了超临界二氧化碳萃取芫荽籽油中萃取压力、二氧化碳流量、萃取时间、萃取温度对芫荽籽油萃取率的影响,得出萃取的较佳工艺条件为:萃取压力20 MPa、二氧化碳流量30 L/h、萃取时间180 m in、萃取温度42℃,芫荽籽油萃取率大于12%。对所得的芫荽籽油中脂肪酸组成进行了分析。展开更多
文摘Supercritical CO 2 extraction was applied to the extraction of flavonoids from licorice. The optimized conditions are: CO 2 pressure 30 MPa, temperature 50 ℃, solid to entrainer ratio 1∶5(g/mL), CO 2 flow rate 10 kg/h, separation pressure 5.5 MPa temperature 40 ℃. Results showed that the flavonoids yield obtained by supercritical CO 2 extraction was 2.2 times that obtained by common solvent extraction method.
