Abstract

Volatile compounds present in green plants exert a certain influence on the atmospheric environment, air quality and human physical and mental health. To provide valuable information for further studies and the improvement of the human environment, a comparative investigation of the volatile compounds and bioactive compounds present in typical coniferous and broad-leaved tree species was conducted. Headspace solid-phase microextraction and gas chromatography-mass spectrometry combined with multivariate statistical analysis was employed for this purpose. By comparing the components of mass spectra with the reference database as well as by calculating RIs with the values reported in the literature, a total of 46 components were successfully identified in the leaves, which differed among leaf samples. The volatiles was assigned to five groups according to the functional group of the compound. The volatiles were mainly terpenes. Through principal component and cluster analyses, the relationship among the tree species was presented.

摘要

绿色植物中存在的挥发性化合物会对大气环境，空气质量以及人类身心健康产生一定影响。为了为进一步研究和改善人类环境提供有价值的信息，对典型针叶树和阔叶树种中存在的挥发性化合物和生物活性化合物进行了比较研究。顶空固相微萃取和气相色谱-质谱联用了多元统计分析。通过将质谱的成分与参考数据库进行比较，以及通过使用文献中报道的值计算RI，成功地在叶片中成功鉴定出46种成分，这些成分在叶片样品中有所不同。根据化合物的官能团，将挥发物分为五个组。挥发物主要是萜烯。通过主成分分析和聚类分析，提出了树木之间的关系。