Analysis of Volatile Components of Leaves of 4 Species of Aspidopterys by GC−MS

The volatile components in leaves of 4 species of Aspidopterys glabriuscula, Aspidopterys cavaleriei, Aspidopterys concava and Aspidopterys obcordata were analyzed by GC−MS. The results showed that a total of 187 chemical components were identified in the leaves of 4 Aspidopterys plants, including 23 alcohols, 11 aromatic hydrocarbons, 3 phenols, 1 ether, 20 aldehydes, 27 ketones, 25 alkanes, 43 alkenes, 22 esters and 12 others. There were 59 common chemical components in the leaves of 4 Aspidopterys plants, and the unique components were different with different components and contents. The main components of A. glabriuscula, A. cavaleriei and A. concava were aldehydes and alcohols, reaching 73.74%–86.85%. The main components of A. obcordata were alcohols, olefins and aldehydes, reaching 68.46%. Cyclohexanol(31.58%), 1-hexanol(23.24%) and (E)-2-hexenal(15.76%) were the main volatile components in the leaves of A. cavaleriei, (E)-2-hexenal(55.63%) and 1-hexanal(15.13%) were the main volatile components in A. cavaleriei, (E)-2-hexenal(41.83%) and cyclohexanol(10.18%) were the main volatile components in A. concava. Aspidopterys obcordata was dominated by 1-hexanol(24.36%) and cyclohexanol(11.35%). The composition and content of volatile components in the leaves of 4 Aspidopterys plants were significantly different. The results can provide reference for the cultivation and resource development and utilization of Aspidopterys plants.