不同白术栽培品种挥发油化学成分的GC-MS分析

目的:对不同白术栽培品种挥发油化学成分进行比较分析。方法:采用水蒸气蒸馏法提取白术挥发油,用气相色谱-质谱(GC-MS)联用技术对不同白术栽培品种的挥发油化学成分进行测定,用面积归一化法计算其相对含量。结果:鉴定出主流白术主要化学成分27种,占总化合物的84.24%;鉴定出2个变异白术化学成分分别为37种和35种,分别占总化合物的91.92%和94.72%。主流品种主要含苍术酮;变异品种主要含茅苍术醇、β-桉油醇和苍术酮,富含倍半萜醇类。结论:本研究结果可为白术药材的质量评价和控制提供依据。

Analysis on Chemical Constituents of Essential Oils from Different Varieties of Atractylodes macrocephala by GC-MS

OBJECTIVE： To analyze and compare the chemical components of essential oil from different varieties of Atractylodes macrocephala by GC-MS. METHODS： The essential oil was extracted from A. macrocephala by steam distillation. The chemical components of the essential oil from different varieties of A. macrocephala were detected by GC-MS. The relative contents of the chemical components were computed using area normalization method. RESULTS： 27 kinds of chemical constituents were identified in the essential oil from main species of A. macrocephala, accounting for 84.24% of the total compounds; 37 kinds and 35 kinds of chemical constituents compounds were identified in the essential oil from two varieties of A. macrocephala, accounting for 91.92% and 94.72% of their total compounds, respectively. Main compound in the essential oil from of A. macrocephala was atractylone; the essential oils from two varieties of A. macrocephala mainly contained hinseol, β-eudesmol and atractylone. CONCLUSION： The experimental results can provide scientific evidence for quality evaluation and quality control of A. macrocephala.