title: [Separation and identification of 5 glycosidic flavor precursors in tobacco by ultra performance liquid chromatography-electrospray ionization tandem mass spectrometry].
abstract: A qualitative method for the identification of 5 main glycosidic flavor precursors in tobacco was developed by using ultra performance liquid chromatography-electrospray ionization tandem mass spectrometry (UPLC-ESI MS/MS) and gas chromatography-mass spectrometry (GC-MS). The glycosidic flavor precursors in tobacco were extracted with methanol, cleaned up with an XAD-2 column. The aglycones were later released by enzyme-mediated hydrolysis under the condition of pH 5. The 5 volatile aglycone moieties were identified by GC-MS standard spectra library. The precursor ions of glycosides were determined by using electrospray ionization mass spectrometry in negative ion mode, then the 5 glycosidic flavor precursors were identified by using product ion scan (MS2) finally, using UPLC-ESI MS/MS, separation and identification of 5 glycosidic flavor precursors were accomplished on an RP-C,8 column in the multiple reaction monitoring (MRM) mode by using methanol and acetic acid-ammonium acetate aqueous solution as eluent. This work lays a foundation for the analysis of glycosidic flavor precursors without the standards by using liquid chromatography-mass spectrometry.
authors.affiliation: Research and Development Center of Hongta Tobacco (Group) Co., Ltd, Yuxi 653100, China.
authors.forename: Xinhua
authors.initials: X
authors.lastname: Wu
authors.forename: Ruizhi
authors.initials: R
authors.lastname: Zhu
authors.forename: Zhuoying
authors.initials: Z
authors.lastname: Ren
authors.forename: Kai
authors.initials: K
authors.lastname: Wang
authors.forename: Dingrong
authors.initials: D
authors.lastname: Mou
authors.forename: Wanzhi
authors.initials: W
authors.lastname: Wei
authors.forename: Mingming
authors.initials: M
authors.lastname: Miao
mesh_terms: D002853:Chromatography, Liquid; D005421:Flavoring Agents / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry; D014026:Nicotiana / Q000737:chemistry*
chemical_list: D005421:Flavoring Agents; D006027:Glycosides