超临界流体CO_2萃取杉木心材精油工艺的研究  

Extraction technology of Chinese-fir heartwood by supercritical fluid carbon dioxide

作　　者：仲利涛[1] 刘元[1] 

机构地区：[1]中南林业科技大学材料与工程学院,湖南长沙410004

出　　处：《中南林业科技大学学报》2012年第1期198-200,共3页Journal of Central South University of Forestry & Technology

基　　金：国家林业公益性行业科研专项(200704020);国家林业科技成果推广项目([2011]52);中南林业科技大学木材科学与技术国家重点学科资助项目

摘　　要：以萃取率为指标,对超临界流体CO2萃取杉木心材精油的工艺进行了研究,并将超临界CO2萃取法与传统的精油提取法精油得率进行比较。结果表明:在压力为30 MPa、温度为40℃、萃取时间120 min、CO2流速为20 kg/h时,精油得率最高,为0.99%,比传统提取方法精油得率高0.20%。但从成本方面来考虑,在非特殊要求时,精油提取建议选择传统提取方法。Taking extraction rate as an indicate, the extraction technology of Chinese-fir heartwood by supercritical carbon dioxide treatment was studied, and the extraction rate of the SFE-CO2 method was compared to that of traditional extraction method. The results show that when exlracfion processing condition were： exaaction pressure 30MPa, extraction ternperatute 40 ℃ exlraction time 120 minutes, and flow velocity 20 kg/h, the extraction rate of SFE-CO2 was 0.99%, 0.20% more than that of the traditional extraction method. However, taking the cost into consideration, it is prooosed that the traditional extraction is used unless there are snecifie reauirements.

关 键 词：杉木 精油 超临界流体CO2 萃取工艺 

分 类 号：S791.27[农业科学—林木遗传育种]