Extraction Technology of Essential Oil from Sawdust of Chinese-fir by Supercritical Carbon Dioxide and Analysis of Components
龙忠举 1洪雅真 1徐沛瑶 1毛克升 2夏敢华2
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作者信息
1. 华侨大学,福建 厦门 361000
2. 福建顺昌升升木业有限公司,福建 南平 353000
折叠
摘要
采用正交实验确定超临界 CO2 萃取杉木屑精油最佳工艺条件,用气相色谱-质谱联用法分析其化学组成.结果表明,杉木屑精油萃取最佳条件为:萃取温度40℃、萃取压力30 MPa、萃取时间 2 h、杉木用量100 g、粒度40目～60 目,此条件下,精油得率2.55%.气相色谱-质谱法共检测出100 个峰,鉴定出67 种化合物,占该精油总量的69.29%,其中柏木醇(46.16%)、泪杉醇(4.53%)、乙酸柏木酯(2.86%)、α-松油醇(2.17%)、α-毕橙茄醇(1.83%)、α-柏木烯(1.36%)等含量比较高.
Abstract
The orthogonal experiment was used to determine the optimal process conditions for supercritical CO2 extraction of Chinese fir sawdust essential oil,and its chemical composition was analyzed by gas chromatography-mass spectrometry.The results showed that the optimal extraction conditions were as follows:extraction temperature 40℃,extraction pressure 30 MPa,extraction time 2 h,dosage 100 g of Chinese fir wood and particle size 40～60 mesh.Under these conditions,the yield of essential oil was 2.55%.67 compounds were detected and 100 peaks were identified by GC-MS in essential oil,accounting for 69.29%of the total weight of essential oil.The main compounds of Chinese fir sawdust essential oil were cedar wood alcohol(46.16%),Chinese fir tears alcohol(4.53%),cedryl acetate(2.86%),alpha terpineol(2.17%),alpha bi orange tomato alcohol(1.83%),alpha cedrene(1.36%).
关键词
杉木/超临界CO2萃取/正交实验/气相色谱-质谱分析
Key words
Cunninghamia lanceolata/supercritical CO2 extraction/orthogonal array design/GC-MS
万方数据