HS-SPME-GC-MS分析蜜本南瓜3个部位的挥发性成分

Volatile Constituents from Three Parts of Cucurbita Moschata Duch.(Miben) by Head-Space Solid Phase Micro-Extraction Coupled with GC-MS

目的:对蜜本南瓜花、茎尖和籽的挥发性成分进行分析。方法:采用顶空固相微萃取和气质联用技术(HS-SPME-GC-MS),结合保留指数法,首次分析蜜本南瓜3个部位的挥发性成分。结果:从蜜本南瓜花、茎尖、籽中分别鉴定出22、20和21个挥发性成分,占总峰面积的91.89%、89.24%和96.26%。其中花和茎尖共有10个共有成分,花、茎尖和籽有3个共有成分。结论:蜜本南瓜花中β-波旁烯(17.57%)和二十一烷(11.90%)含量较高;蜜本南瓜茎尖中癸醛(28.77%)含量最高;籽中棕榈酸乙酯(29.12%)、2,3-丁二醇(16.90%)和亚油酸乙酯(16.52%)含量较高。

This study was aimed to analyze the volatile constituents from flower,stem tip and seed of Cucurbita moschata Duch.（Miben）.The volatiles were analyzed by head-space solid micro-extraction,coupled with GC-MS and Kovats indices for the first time.The results showed that 22 compounds were identified from the flower,20 from the stem tip and 21 from the seed of the C.moschata（Miben）.The total essential constituents from each part were 91.89%,89.24% and 96.26%,respectively.A total of 10 compounds in the flower and stem tip were mutual.And 3 compounds in the flower,stem tip and seed were mutual.It was concluded that the β-bourbonene（17.57%） and heneicosane（11.90%） were the highest components of the total essential constituents of the flower of C.moschata（Miben）.Decanal（28.77%） was the highest components of the stem tip and hexadecanoic acid ethyl ester（29.12%）,2,3-butanediol（16.90%） and linoleic acid ethyl ester（16.52%） were the highest components of seed of C.moschata（Miben）.