摘要
建立超临界流体萃取技术 (Supercriticalfluidextraction ,SFE)提取川芎根茎挥发油的方法 ,并采用气相色谱 -质谱法 (GC MS) ,对所得挥发油进行化学成分分离和鉴定。通过标准图谱对照确定化合物名称 ,鉴定了 44种成分。同时采用水蒸汽蒸馏法提取川芎根茎挥发油 ,比较得油率 ,考察超临界流体萃取技术的萃取效率 ;SFE和水蒸汽蒸馏法的得油率分别为4 16 %和 0 8%。结果表明SFE比水蒸汽蒸馏法萃取效率高 ,操作简单 ,省时快速 ,对热不稳定性物质尤为适用 ,是提取。
Supercritical fluid extraction (SFE) of essential oil from dry rhizome ofLigusticum chuanxiong Hort was developed. GC/MS was used for the determination of the composition ofessential oil. Forty-four compounds were identified. The conventional extraction method wasconducted in parallel for comparison. The extracts were qualitatively compared by GC/MS. The yieldsof SFE and steam distillation-extraction were 4.16 % ( v/w) and 0.8 % ( v/w), respectively.Application of SFE of zessential oil from dry rhizome of Ligustiaan chuanxiong Hort was preferable.
