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[目的]分析腊梅花精油的香气成分。[方法]采用微波辅助-水蒸气蒸馏法对腊梅花精油的香气成分进行提取,用气相色谱-质谱法对香气成分进行分析,结合谱库检索对化合物进行鉴定,应用峰面积归一化法测定各化合物的相对百分含量。[结果]在腊梅花精油中共鉴定出27种香气成分,占总含量的98.85%。其中香气化合物主要由烯烃类、醛类、酯类、醇类和烷烃类组成。相对百分含量在5%以上的主要成分有大香叶烯D(占25.62%)、醋酸冰片酯(占16.71%)、石竹烯(占10.51%)、顺-α-罗勒烯(占5.18%)、γ-榄香烯(占8.05%)、β-芳樟醇(5.01%)、1-乙基-1-甲基-2,4-二-(1-异丙基)环己烷(占7.18%)、2,3,4,4α,5,6-六氢化-1,4α-二甲基-7-异丙基萘(占5.20%)。[结论]该研究为腊梅花资源开发利用提供了理论参考。
[Objective] To analyze the aroma components of plum blossom essential oil. [Method] The aroma constituents of essential oil from plum blossoms were extracted by microwave - assisted steam distillation. The constituents of aroma were analyzed by gas chromatography - mass spectrometry. Compounds were identified by spectral library search. The peak area normalization method was used to determine the aroma components. The relative percentage of each compound. [Result] A total of 27 kinds of aroma components were identified in the plum flower essential oil, accounting for 98.85% of the total content. The aroma compounds are mainly composed of olefins, aldehydes, esters, alcohols and alkanes. The relative percentage of 5% or more of the major components of geraniol D (accounting for 25.62%), borneol ester (accounting for 16.71%), caryophyllene (accounting for 10.51%), cis-α-ocimene (accounting for 5.18% ), Γ-elemene (8.05%), β-linalool (5.01%), 1-ethyl- 1 -methyl- 2, 4- di- (1-isopropyl) cyclohexane Accounting for 7.18%), 2,3,4,4α, 5,6-hexahydro-1,4α-dimethyl-7-isopropylnaphthalene (accounting for 5.20%). [Conclusion] This study provided a theoretical reference for the development and utilization of the plum flower resources.