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 |
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| Authors: | Gang Cao Qinglin Li Xin Wu Jida Zhang Hongyan Zhang Jianping Jiang |
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| Institution: | 1. Research Center of TCM Processing Technology, Zhejiang Chinese Medical University, Hangzhou, P. R. China;2. Zhejiang Cancer Hospital, Hangzhou, P. R. China;3. College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, P. R. China;4. The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, P. R. China |
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| 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. |
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| Keywords: | Ginseng Needle‐trap devices Sulfur‐fumigation Two‐dimensional gas chromatography |
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