鲜、干品芭蕉根挥发油化学成分的GC-MS分析

目的:分析比较新鲜和干燥芭蕉根挥发油的化学成分,为芭蕉根的开发利用提供参考。方法:采用水蒸汽蒸馏法分别提取来自同一植株的干、鲜品芭蕉根的挥发油,通过气相色谱-质谱联用法分析和鉴定化学成分。结果:鲜品芭蕉根挥发油中鉴定出36种成分,占总量的76.28%;而干品芭蕉根挥发油中鉴定出32种成分,占总量的81.78%。结论:两者的共有成分中,含量较高的是十五醛、角鲨烯和正庚醛,其在鲜品芭蕉根中的相对含量分别为19.60%,11.46%,8.69%,而在干品芭蕉根中则为17.37%,8.87%,5.07%。其他化学成分及其含量存在差异。

Study on Chemical Components of Essential Oils from Fresh and Dry Rhizoma Musae by Gas Chromatography-Mass Spectrometry

Objective: To analyze and compare the chemical constituents of the volatile oil from fresh and dried Rhizoma Musae. Method: Essential oils obtained by hydrodistillation from fresh and dried Rhizoma Musae which came from the same plant, was analyzed by GC-MS. Result: Thirty-six compounds were characterized, representing 76.28% of the fresh Rhizoma Musae volatile oil,whereas in the dried Rhizoma Musae oil,only 32 compounds were characterized, representing 81.78 %. Conclusion: Among them, the majority were pentadecanal, squalene and heptenal. Their relative content was 19.60%,11.46%,8.69% in fresh Rhizoma Musae oils and 17.37 %,8.87%,5.07 % from dried Rhizoma Musae, respectively. The relative contents of other chemical constituents were different.