Terpene Composition of Three Species of Gymnosperms from Vietnam

Copyright © 2013 Do N. Dai et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. In the present investigation, we studied new essential oil contents and compositions of three individual plants from Cu-pressaceae family cultivated in Vietnam. The air-dried plants were hydrodistilled and the oils analysed by Gas chroma-tography (GC) and Gas chromatography couples with Mass spectrometry (GC-MS). The components were identified by comparison of their retention indices on HP-5 MS capillary column with literature reference and MS pattern with au-thentic library’s collection. -Pinene (36.0%), α-cedrol (18.3%) and thujopsene (5.7%) were the main constituents of Cupressus tonkiensis Silba. Monoterpenes were the quantitative significant compounds of Sabina chinensis (L.) An-toine. These are bornyl acetate (19.5%), sabinene (17.3%) and -pinene (15.8%). Moreover, the main compounds of Thuja orientalis L., were identified as -pinene (34.1%), α-cedrol (16.5%), β-caryophyllene (5.4%) and β-selinene (5.2%). The chemotaxonomy implication of these results was also discussed