GC-MS法检测球花石斛花中挥发性成分

Determination of volatile components From flower of Dendrobium thyrsiflorum by GC-MS

目的研究球花石斛花中挥发性的化学成分。方法采用水回流法从球花石斛花中提取挥发性成分,并用气相色谱—质谱(GC-MS)联用技术,对球花石斛花中的挥发性成分进行了测定。结果共鉴定出22种化学成分,其中含量较高的主要有亚油酸(51.82%)、亚麻酸(10.056%)、棕榈酸(9.282%)、硬脂酸(4.579%)、8-羟基-4,7-二甲基香豆素(4.727%)、6,7-二甲氧基香豆素(3.083%)、二十三烷(4.490%)等。结论该文首次采用气相色谱-质谱(GC-MS)联用技术对球花石斛花挥发性成分进行提取研究。

Objective To study the chemical constituents of volatile oil from flower of Dendrobium thyrsiflorum by GC-MS technology.Methods The chemical compositions of volatile oil of the plant were obtained by water reflux method and then analyzed by GC-MS equipped.Results About twenty-two compounds were identified with the computer standard spectra as linoleic acid（51.82%）,linolenic acid（10.056%）,palmitic acid（9.282%）,stearic acid（4.579%）,8-hydroxy-4,7-dimethyl coumarin（4.727%）、6,7-dimethoxy coumarin（3.083%）,tricosane（4.490%）etc.Conclusions This paper reports,for the first time,the composition of volatile oils of flowers Dendrobium thyrsiflorum by GC-MS.