【摘要】 采用固相微萃取(SPME)吸附采集结香(EdgeworthiachrysanthaLindl.)鲜花的香气成分,用色谱-质谱联用分析鉴定,并用GC-MS总离子流色谱峰的峰面积进行归一化定量分析结香鲜花的香气成分,鉴定出γ-萜品烯56.41%、乙酸苄酯10.77%、β-苯乙基乙酸酯9.58%、3,7-二甲基-2,6-辛二烯-1-醇乙酯5.61%、水杨酸甲酯3.91%、苯甲酸甲酯2.85%、反式罗勒烯1.80%、苯甲醛1.75%和3-甲基-3-癸烯-2-酮1.40%等30种化合物。固相微萃取-气相色谱-质谱法是一种可用于鲜花香气成分分析的简单可行的分析方法。更多还原

【Abstract】 Fragrance constituents released from fresh flowers of Edgeworthia chrysantha Lindl.were investigated by gas chromatography-mass spectrometry.The volatiles were sampled by solid phase microextraction(SPME).SPME sampling was conducted with 30 μm PDMS fiber at (25±5)℃ for 30 min.The fibers were desorbed in a GC injection liner at 250 ℃ for 5 min.A capillary column( WCOT FUSED SILICA 30 m×0.25 mm ID COATING CP-SIL 8 (CB-LOW) BLEED/MS DF=0.25 μm) was employed in GC-MS analysis.Initial oven temperature was kept at 40 ℃ for 5 min,then raised to 250 ℃ at 3 ℃/min,and kept at 250 ℃ for 5 min.Chemical constituents were separated and identified by GC-MS.γ-Terpinene(56.41%),benzyl acetate(10.77%),2-phenyl ethyl acetate(9.58%),(3,7-dimethyl-2),6-octadien-1-ol,acetate(5.61%),methyl salicylate(3.91%),methyl benzoate(2.85%),trans-(ocimene)(1.80%),benzaldehyde(1.75%)and 3-decen-2-one,3-methyl(1.40%)were the most abundant volatiles released from fresh flowers of E.chrysantha,and a total of 30 volatile compounds were identified in this study.(SPME-GC-MS) afforded a feasible and simple method for analyzing volatiles released from fresh flowers.更多还原