摘要
介绍了超临界CO2萃取百里香精油的提取分离技术工艺,重点研究了超临界CO2萃取压力、温度、时间对出油率的影响,并且应用正交实验优化出较佳的工艺参数:CO2萃取压力为:25MPa;温度:40℃;时间:4h;流量:25L/min。由超临界CO2提取精油的出油率高达4.22%。
The extract from Thymus quinpuecostatus was obtained by supercritical carbondioxide extraction(SC-CO2)technique.Suitable technological conditions were obtained.Putting emphasis on effects of SC-CO2.extracting pressure,temperature,and time on the extraction,The optimum extractionconditions were:extraction pressure:25MPa;extraction temperature:45℃;extraction time:120min;flu 25L/min;The maximum of extraction efficiencies was up to 4.22%.
出处
《中国调味品》
CAS
北大核心
2007年第8期45-47,共3页
China Condiment
基金
院级科研项目(BBXY2006-204A)
关键词
百里香
超临界萃取
工艺
thymus quinpuecostatus
supercritical CO2
technics
