三种丁香花精油的挥发性成分比较分析

为了解紫丁香、白丁香和红丁香花蕾精油样品挥发性成分的差异，采用气相色谱-质谱联用技术（GC-MS）分析了三种丁香花精油样品的挥发性成分，并对三者的挥发性成分进行了主成分分析和聚类分析。结果从紫丁香、白丁香和红丁香精油中分别解析出46、64和56种挥发性物质，包括烷烃类、酯类、醇类、酮类、烯烃类、酚类、有机酸等，其中共有的挥发性成分为9种。三种丁香花精油样品的挥发性成分比较分析显示，酯类是含量最高的挥发性成分，其次是烷烃类，并且这两类物质在不同品种的丁香花精油中含量不同。统计分析结果表明三种样品的挥发性成分之间没有明显差别。本研究为增加丁香花精油的应用范围提供了理论依据。

Comparative Analysis of Volatile Components of Three Cloves Essential Oil

In order to investigate the differences in the volatile components of the essential oil of Syringa oblata, Syringa oblata var. alba and Syringa villosa, GC-MS was used to analyze the volatile components in three cloves essential oil. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) were carried out to identify the different volatile components. 46, 64 and 56 volatile compounds including alkanes, esters, alcohols, ketones, olefins, phenols and acids were identified from the cloves essential oil, respectively. Among them, 9 volatile compounds are common. The comparative analysis indicated that esters were the highest in the cloves essential oil samples, followed by alkane, and the contents of the 2 components varied in 3 cloves essential oil samples. However, the statistical analysis results showed that there is no significant difference in volatile components among the three samples. This study provides a theoretical basis for increasing the application range of cloves essential oil.