超声强化超临界流体萃取海藻脱氢乙酸的研究  

Study on ultrasonically enhanced supercritical fluid extraction of DHA from algae

作　　者：胡爱军[1] 郑捷[1] 丘泰球[2] 

机构地区：[1]天津科技大学食品科学与生物工程学院,天津300222 [2]华南理工大学轻化工研究所,广州510640

出　　处：《现代化工》2004年第z1期141-143,共3页Modern Chemical Industry

基　　金：广州市科技计划项目(穗科条字[2002]27号);香港政府资助和香港理工大学合作研究项目(01440003030147)

摘　　要：研究了超声强化超临界流体萃取海藻 DHA 技术,研究了萃取温度、萃取压力、流体流量以及萃取时间的影响。结果表明超声强化超临界流体萃取可以降低萃取温度、萃取压力以及超临界流体的流量,还可缩短萃取时间,提高萃取率。The technique of supercritieal fluid to extract DHA from algae with ultrasonic enhancement was studied.Influ- encing factors such as extraction temperature,pressure,flow rate of supercritical fluid and extraction time on the extraction itself were studied.The supercritical fluid extraction with the enhancement of ultrasound can not only decrease optimal extraction tem- perature,pressure and SCF flow rate,but also reduce extraction time and increase extraction yield,so as to make higher extrac- tion efficiency.

关 键 词：超临界流体萃取 超声 DHA 海藻 

分 类 号：TQ225.13[化学工程—有机化工]