摘要
为了探讨超声波对超临界CO2萃取(SCE)的影响,考察了在不同萃取温度、萃取压力、萃取时间和流体流量下,有、无超声时超临界CO2萃取人参皂苷的萃取率。试验结果发现,超声强化超临界CO2萃取(USCE)的合适萃取温度比没加超声(SCE)时的低10℃;在各自合适的萃取压力下,USCE的皂苷萃取率是SCE的1.64倍;CO2流体的流量大更有利于USCE。在SCE中,超声的加入能明显提高产物的萃取率和生产效率,降低生产能耗和节约生产成本。
In order to explore the effect of ultrasound on the extraction of ginsenosides from ginseng in Supercritical CO2 Extraction （SCE）, the extraction rates of ginsenosides under with and without ultrasound were compared at different extraction temperatures, pressures, times and fluid flow rates. Results show that the suitable extraction temperature of Ultrasound-assisted Supercritical CO2 Extraction（USCE） is lower 10 ℃than that of without ultrasound. At their suitable extraction pressures, the ginsenosides extraction rate of USCE is 1.64 times of that of SCE. Higher flow rate of CO2 is beneficial to USCE than to SCE. Ultrasound added in SCE can improve extraction rate and reduce energy consumption and cost.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2007年第6期256-258,共3页
Transactions of the Chinese Society of Agricultural Engineering
基金
河南科技大学博士科研启动基金
关键词
超声
超临界CO2
萃取
传质
人参皂苷
ultrasound
supercritical CO2
extraction
mass transfer
ginsenosides
