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目的分析蔷薇科山楂属植物山楂叶挥发油的化学成分。方法采用水蒸气蒸馏法从山楂叶中提取挥发油,用气相色谱-质谱(GC-MS)联用技术及克瓦兹指数对挥发油化学成分进行分析,以归一化法计算各个化学成分的相对含量。结果共分离出154个色谱峰,鉴定了其中93个化合物,占挥发油总量的质量分数为78.78%。山楂叶挥发油中主要成分是:2,7(14),10-bisabolatrien-1-ol-4-one(质量分数为18.42%)(75)、nezukol(质量分数为6.25%)(90)、反-水合桧烯(transsabinene hydrate,质量分数为4.11%)(10)、丙酸香茅酯(citronellyl propanoate,质量分数为2.8%)(46)、zonarene(质量分数为2.65%)(55)、(5E,9E)-法呢基丙酮((5E,9E)-farnesyl acetone,质量分数为2.5%)(77)等。结论首次采用克瓦兹指数对山楂叶挥发油的化学成分进行分析,为山楂叶的开发研究提供了科学依据。
Objective To analyze the chemical constituents of the volatile oil of hawthorn leaves in Rosaceae. Methods Volatile oil was extracted from hawthorn leaves by steam distillation. The chemical constituents of volatile oil were analyzed by gas chromatography-mass spectrometry (GC-MS) and kvass index. The relative content of each chemical component . Results A total of 154 chromatographic peaks were isolated and 93 compounds were identified, accounting for 78.78% of the total volatile oil. The main constituents of hawthorn leaf volatile oil are: 2,7 (14), 10-bisabolatrien-1-ol-4-one (75%), nezukol (6.25% - transsabinene hydrate (4.11%) (10), citronellyl propanoate (mass fraction 2.8%) (46), zonarene (mass fraction 2.65%), 5E, 9E) - farnesyl acetone ((5E, 9E) -farnesyl acetone, 2.5% by mass) (77) and the like. Conclusion For the first time, the chemical constituents of volatile oil from hawthorn leaves were analyzed by using the kwaz index, which provided a scientific basis for the development of hawthorn leaves.