榉树叶挥发油化学成分的GC-MS分析

目的:采用气相色谱-质谱联用技术(GC-MS) 分析榉树叶中挥发油的化学成分。方法:采用水蒸气蒸馏法提取榉树叶中挥发油,通过GC-MS 对挥发油的化学成分进行分析鉴定。结果:采用面积归一化法对挥发油的化学成分进行定量分析,共鉴定出64种化合物,占挥发油总量的71.06%。主要成分为丙酸乙酯(3.61%),乙酸丁酯(8.28%),2-己烯醛(1.66%),丙苯(1.46%),对乙基甲苯(6.18%),三甲苯(5.61%),芳樟醇(1.09%),6-甲基-3,5-戊二烯-2-酮(1.43%),香叶基丙酮(1.43%),β-紫罗酮(1.12%),棕榈醛(1.25%),肉豆蔻酸(1.07%),法尼基丙酮(1.89%),邻苯二甲酸二丁酯(10.82%),植物醇(5.72%)。结论:该研究为榉树叶的进一步开发利用提供了可靠的实验数据及理论依据。

Analysis of Chemical Constituents of Volatile Oil from Zelkova schneideriana Leaves by GC-MS

Objective: To analyze the chemical constituents of volatile oil from Zelkova schneideriana leaves with GC-MS technology. Method: The volatile oil was extracted from the leaves by steamdistillation. The constituents of volatile oil were identified by GC-MS technology. Result: Relative content of volatile oil was determined by peak area normalization. Totally 64 compounds were identified, accounting for 71.06% of the total volatile oil content. The principal chemical constituents of the essential oils were ethyl propionate (3.61%), butyl acetate (8.28%), trans-2-hexenal (1.66%), N-propylbenzene (1.46%), 4-ethyltoluene (6.18%), trimethylbenzene (5.61%), linalool (1.09%), 6-methyl-3, 5-hep-tadien-2-one (1.43%), geranyl acetone (1.43%), beta-ionone (1.12%), palmitaldehyde (1.25%), myristicacid (1.07%), farnesyl acetone (1.89%), dibutyl phthalate (10.82%), phytol (5.72%). Conclusion: The results provide reliable experimental data and theoretical basis for the further development and utilization of Zelkova schneideriana leaves.