TY - JOUR AU - Hung, Nguyen Quang AU - Thai, Tran Huy AU - Dai, Do Ngoc AU - Laffont-Schwob, Isabelle PY - 2012/05/09 Y2 - 2024/03/28 TI - Chemical composition of the essential oil of Calocedrus macrolepis Kurz from Ha Giang province JF - Academia Journal of Biology JA - AJB VL - 33 IS - 2 SE - Articles DO - 10.15625/0866-7160/v33n2.750 UR - https://vjs.ac.vn/index.php/vjbio/article/view/750 SP - 57-59 AB - <p>The stem oil of <em>Calocedrus macrolepis </em>Kurz collected from Ha Giang province, Vietnam, in May 2008 was isolated by steam distillation to give oil yield 0.15% and analyzed by Capillary GC and GC/MS. Thirty eight components have been identified accounting more than 78.7% of the oil respectively. The major constituents of this oil appeared to be benzoic acid (23.3%) and dodecan-7 ol (14.6%). Less predominant constituents included trimethylenehexane (7.3%), α-terpineol (6.6%), 1,3-cyclooctadiene (5.8%), 4-nitrostyrene (2.8%), undecane (2.7%), methyllenebornane (2.3%), tricyclene (2.3%), tricyclo (2.0%) and cavacrol methyl ther (1.1%). All the other components were in concentration of less than 0.1-0.9%.</p> ER -