兰香草挥发油化学成分的研究

Studies on chemical constituents of the volatile oil from Caryopteris incana (Thunb.) Miq.

采用常压水蒸气蒸馏法提取了兰香草挥发油,得油率为0.39％-0.52％.其相对密度(20℃)0.988 0-0.990 0,折射率(20℃)1.460 8,比旋光度+0.51°,酸值1.5.并用毛细管气相色谱、红外光谱、核磁共振谱和色-质联机等对该挥发油进行了系统的成分分析.在分出的112个色谱峰中,共鉴定出71个化合物,占挥发油总量的94.6％.其主要成分为芳樟醇、紫苏醇、香芹酮、荠宁烯、4-甲基-6-庚烯-3-酮、葎草烯、马鞭草烯酮、左旋松香芹酮、2-壬烯-4-炔等.

The volatile oil of Caryopteris imcana (Thunb.)Miq. was produced by general steam distillation with 0.39%-0.52% oil yield. The volatile oil with relative density(20°/4℃)0.998 0-0.990 0,re-fractive index (20℃) 1.4608,optical rotation degree +0.51°,acid number 1.5 also have been determined by classical way. Chemical constituents of volatile oil analyzed by GC, GC/MS/DS, IR ,NMR and other methods are reported, 71 components have been identified. The principle constituents of the volatile oil were linalool, perillalcohol, carvone, orthodene, 4-methyl-6-hepten-3-one, humulene, verbenone,(-)-pinocarvone,(Z,E)-2-nonen-4-yne etc. The total content of the above 71 compounds is 94.6% of the volatile oil.