夜合花挥发油化学成分的GC-MS分析

Analysis of Chemical Constituents of Essential Oils from Magnolia coco by GC-MS

目的:研究夜合花挥发油的化学成分。方法:利用水蒸气蒸馏法及超临界CO2萃取法提取桂产夜合花挥发油,用GC-MS联用技术对其化学成分进行分离鉴定,用面积归一化法确定各成分的相对含量。结果:水蒸气蒸馏法提取的挥发油鉴定56个化合物,占挥发油总量的87.46%,超临界CO2萃取法提取的挥发油鉴定25个化合物,占总量的95.86%。结论:桂产夜合花挥发油主要成分是α-蒎烯、橙花叔醇、石竹烯、吉玛烯D、双环吉玛烯,与文献报道其他产地的夜合花挥发油成分有明显差异。

Objective：To study the chemical constituents of the essential oils from Magnolia coco.Method：The essential oils were extracted by steam distillation（SD） and supercritical carbon dioxide extraction（SFE）,and then the constituents were separated and identified by GC-MS.Result：Fifty six compounds were isolated and identified by SD that composed about 87.46% of the total essential oils;and 25 compounds were isolated and identified by SFE that composed about 95.86% of the total essential oils.Conclusion：The principal constituents of essential oils in M.coco from Guangxi are α-pinene,nerolidol,caryophyllene,germacrene D,bicyclogermacrene,which are very different from the other origin.