%0 Journal Article %T Terpene Composition of Three Species of Gymnosperms from Vietnam %A Do N. Dai %A Tran D. Thang %A Isiaka A. Ogunwande %J American Journal of Plant Sciences %P 2031-2038 %@ 2158-2750 %D 2013 %I Scientific Research Publishing %R 10.4236/ajps.2013.410254 %X
In the present investigation, we studied new essential oil contents and compositions of three individual plants from Cupressaceae family cultivated in Vietnam. The air-dried plants were hydrodistilled and the oils analysed by Gas chromatography (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 authentic library¡¯s collection. a-Pinene (36.0%), ¦Á-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.) Antoine. These are bornyl acetate (19.5%), sabinene (17.3%) and a-pinene (15.8%). Moreover, the main compounds of Thuja orientalis L., were identified as a-pinene (34.1%), ¦Á-cedrol (16.5%), ¦Â-caryophyllene (5.4%) and ¦Â-selinene (5.2%). The chemotaxonomy implication of these results was also %K < %K i> %K Cupressus tonkiensis< %K /i> %K < %K i> %K Sabina chinensis< %K /i> %K < %K i> %K Thuja orientalis< %K /i> %K Bornyl Acetate %K ¦Á-Cedrol %K < %K i> %K ¦Á< %K /i> %K -Pinene %K Sabinene %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=38111