黄心夜合不同组织挥发油成分分析

为探讨同一时间内黄心夜合Michelia martinii鲜叶、鲜嫩枝和鲜花的挥发油成分，利用气相色谱-质谱联用技术（GC-MS）对水蒸气蒸馏法提取的黄心夜合鲜叶、鲜嫩枝和鲜花挥发油成分进行了分析。结果表明:去掉峰值0.49以下的峰，从黄心夜合鲜叶、鲜嫩枝、鲜花分别检测出21种、31种和25种成分，3种不同组织样品共有2，4-二异丙烯基-1-甲基环己烷、γ-依兰油烯、4（14），11-桉叶二烯、γ-榄香烯等4种成分，而鲜叶与鲜嫩枝都释放共同的12种挥发性成分，鲜嫩枝与鲜花都释放共同的13种挥发性成分，鲜叶与鲜花都释放共同的4种挥发性成分。黄心夜合鲜叶、鲜嫩枝和鲜花的挥发油成分在提取材料选择、挥发性成分利用与养生保健群落的营建等方面具有一定的应用参考。

Volatile components analysis from different fresh tissues of Michelia martinii

To study volatile components from fresh leaves, fresh twigs, and fresh flowers of Michelia martinii at the same time, volatile oils were extracted by water-steam distillation from the fresh leaves, fresh twigs, and fresh flowers and then detected by gas chromatography-mass spectrometry (GC-MS). Results of GC-MS showed that the volatile oils contents from different organizations of M. martinii at the same time had ingredients of 21 kinds from fresh leaves, of 31 kinds from fresh twigs, and of 25 kinds from fresh flowers (peak values below 0.49 were neglected). Among the three fresh organizations of M. martinii, the common components were four kinds of ingredients, such as.gamma.-Elemene, gamma.-Muurolen, Eudesma-4(14), 11-diene, and Cyclohexane, 2, 4-diisopropenyl-1-methyl-. Four kinds of components were common to fresh leaves and fresh flowers, 13 kinds of components were common to fresh flowers and fresh twigs, and 12 kinds of components were common to fresh leaves and fresh twigs. The volatile oils of flowers were rich in terpenes and alcohols with terpenes dominated by monoterpenes up to 36.38%; content of the alcohol compounds was higher than terpenes with content as high as 54.77%. Terpene compounds had.gamma.-Cadinene, Caryophyllene oxide, .alpha.-Selinene, Spathulen, Diepicedrene-1-oxide, (+) -Ledene, -Aristolene, Eudesma-4(14), 11-diene, and DGermacrene D. While the alcohols had Eudesm-4(14) -en-11-, 2-(4, 8-Dimethyl-3, 7-cyclodecadien-1-yl) -2-p, Epiglobulol, .gamma.-Eudesmol, .tau.-Cadinol, Guaiol, and.delta.-Cadinol. In conclusion M. martinii could provide new application ideas on material selection of extracted essential oils, utilization of volatile components, and landscape community construction for health care.