title: Coupling needle-trap devices with comprehensive two-dimensional gas chromatography with high-resolution time-of-flight mass spectrometry to rapidly reveal the chemical transformation of volatile components from sulfur-fumigated ginseng.
abstract: Sulfur-fumigation could alter the quality of white ginseng by damaging the bioactive compounds and generating sulfur-containing materials. In the present study, coupling needle-trap devices with comprehensive two-dimensional gas chromatography and high-resolution time-of-flight mass spectrometry was applied to rapidly reveal chemical transformation of volatile components from sulfur-fumigated ginseng. Thirty-two volatile compounds were not in white ginseng samples after sulfur-fumigation. Furthermore, 20 sulfur-containing compounds were identified for the first time in volatile oil of sulfur-fumigated white ginseng. The established approach could be applied to discriminate sulfur-fumigated white ginseng among commercial samples and to control the quality of white ginseng.
authors.affiliation: Research Center of TCM Processing Technology, Zhejiang Chinese Medical University, Hangzhou, P. R. China.
authors.forename: Gang
authors.initials: G
authors.lastname: Cao
authors.forename: Qinglin
authors.initials: Q
authors.lastname: Li
authors.forename: Xin
authors.initials: X
authors.lastname: Wu
authors.forename: Jida
authors.initials: J
authors.lastname: Zhang
authors.forename: Hongyan
authors.initials: H
authors.lastname: Zhang
authors.forename: Jianping
authors.initials: J
authors.lastname: Jiang
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D009339:Needles; D005894:Panax; D013455:Sulfur / Q000737:chemistry*; D014835:Volatilization
chemical_list: D013455:Sulfur
keywords: Ginseng; Needle-trap devices; Sulfur-fumigation; Two-dimensional gas chromatography