桂花枝叶挥发性有机物成分动态分析

Dynamic Analysis of Volatile Organic Compounds from Branche and Leaves of Osmanthus fragrans (Thunb.) Lour.

[目的]分析桂花枝叶挥发性有机物成分的动态变化。[方法]采用活体植物动态顶空套袋法与TDS/GC/MS联用相结合分析技术,于2009年5～9月对桂花枝叶挥发性有机物动态变化进行分析,以归一化法确定各个化学组分的相对含量。[结果]共鉴定出64种化合物,分为7类,以酯类化合物、萜类化合物和醛类化合物为主,占化合物总量的70.82%,并主要释放(Z)乙-酸-3己-烯-1醇-酯、二氢香茅醇、Z罗-勒烯、癸醛、壬醛等化学成分。[结论]为桂花在园林绿化应用方面提供参考。

[Objective]The aim was to analyze dynamic changes of volatile organic compounds from branche and leaves of Osmanthus fragrans（Thunb.）Lour.[Method]Using living plants bagged dynamic headspace collection and TDS / GC / MS combined technology, volatile organic compunds（VOCs） dynamic variations from branches and leaves of Osmanthus fragrans（Thunb.） Lour were researched by normalization method to determine the relative contents of each chemical composition from May to September in 2009.[Result]The total 64 kinds of compounds were identified and divided into seven types,mainly based on ester compounds,terpenoids and aldehydes,which get 70.82% in the total 64 kinds of identified compounds.3-Hexen-1-ol,acetate,（Z）-,Dihydrocitronellol,Z-Ocimene,Decanal,Nonanal and other chemical constituents were mainly released.[Conclusion]The study provide a reference for the application of Osmanthus fragrans（Thunb.） Lour.in garden.