[用GC-TOF-MS分析浙贝母花中挥发性成分]。

Liang Junling
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引用次数: 2

摘要

目的测定浙贝母花中挥发性成分的结构和含量,并探讨不同操作方式对其挥发性成分的影响。方法采用水蒸气蒸馏法提取挥发油,然后进行气相色谱-飞行时间质谱(GC-TOF-MS)分析。结果共分离了60多个峰,通过高分辨率光谱和化合物文库筛选,对其中39个峰进行了定量定性鉴定。在这些鉴定的成分中,未加工花的主要成分是十八碳三烯酸甲酯,而一些芳香醛和酮类,如苯乙醛和1-(2-羟基-5-甲基苯基)乙酮,在流化床和阴影中都是突出的成分。此外,在流化床中干燥的花比其他花更香。结论黄连花的成分和含量与其加工方式密切相关,流化床干燥是黄连花加工的最佳选择。
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[Analysis of volatile components of flowers of Fritillaria thunbergii by GC-TOF-MS].
OBJECTIVE To determine the structures and contents of the volatile components of flowers of Fritillaria thunbergii, and investigate the effects of operation modes on its volatile components. METHOD The volatile oils were first obtained by the hydrodistillation assay and then submitted to gas chromatography-time-of flight mass spectrometry (GC-TOF-MS) analysis. RESULT More than 60 peaks were resolved, and 39 of which were identified quantitatively and qualitatively based on high-resolution spectra and compounds library screening. Among these identified components, the octadecatrienoic acid methyl esters were major components in the unprocessed flowers, while some aromatic aldehydes and ketones, such as benzeneacetaldehyde and 1-(2-hydroxy-5-methylphenyl)-ethanone, were prominent components in the flowers both dried in the fluidized bed and in shadow. In addition, the flowers dried in the fluidized bed were more fragrant than other flowers. CONCLUSION The component and contents closely related to their processing mode, and the fluided bed drying may be a best choice to process the flowers of F. thunbergii.
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