关键词: 宽叶羌活, 挥发油, 组分分析, 季节动态

Abstract: To determine the contents and constituents of volatile oils extracted from cultivated Notopterygium forbesii H. Boiss vegetated in different months. Analyzed their seasonal dynamics and provided experiment foundation for reasonable utilization of Rhizoma et Radix Notopterygii. Volatile oils were extracted by steam distillation. The chemical constituents were separated and identified by gas chromatography-mass spectrometer (GC-MS). The relative content of each component was determined by area normalization. The difference of volatile oil contents was significant at the 0.01 level between different samples. The content was highest in the sample collected in August, and lowest in the sample vegetated in May. Thirty nine constituents were identified by GC-MS analysis, and there were thirty one same compounds in the five samples. The principal components analysis of SPSS was applied to the study of characteristic compounds and separated 15 kinds of compounds as characteristic constituents of volatile oil extracted from cultivated N. forbesii H. Boiss. vegetated in different months. The contents and constituents of volatile oils had obvious seasonal dynamics in the cultivated N. forbesii H. Boiss. To a certain extent, these reflected the subtle difference of its medical value.

Key words: Notopterygium forbesii H. Boiss, volatile oil, constituents&rsquo, analysis, seasonal dynamics