Analysis of Chemical Constituents in Different Parts of Gentiana straminea Based on UPLC-Q-TOF-MS/MS
10.13422/j.cnki.syfjx.20211862
- VernacularTitle:基于UPLC-Q-TOF-MS/MS技术的麻花秦艽不同部位化学成分分析
- Author:
Xiang-ping LIANG
1
;
Shuang JI
1
;
Shao-bo DU
1
;
Zhi-qiang DONG
1
;
Xiao-wen CHEN
1
;
Ai-fang YANG
1
;
Hui-chun XIE
1
Author Information
1. Qinghai Provincial Key Laboratory of Medicinal Plant and Animal Resources of Qinghai-Tibet Plateau，School of Life Sciences，Qinghai Normal University，Xining 810008，China
- Publication Type:Journal Article
- Keywords:
Gentiana straminea;
chemical composition;
ultra-performance liquid chromatography-quadrupole-time-of-flight tandem mass spectrometry （UPLC-Q-TOF-MS/MS）;
chemometrics;
iridoids;
flavonoids;
triterpenoids
- From:
Chinese Journal of Experimental Traditional Medical Formulae
2022;28(8):139-148
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveUltra-performance liquid chromatography-quadrupole-time-of-flight tandem mass spectrometry （UPLC-Q-TOF-MS/MS） was used to analyze the chemical constituents in the aerial part and roots of Gentiana straminea from different areas of Qinghai province， and the main chromatographic peaks and differential components of different parts were identified. MethodThe chromatographic separation was performed on a Waters ACQUITY UPLC HSS T3 column （2.1 mm×100 mm， 1.8 μm） with 0.1% formic acid aqueous solution （A）-acetonitrile （B） as the mobile phase for gradient elution （0-1 min， 1%-13%B； 1-5 min， 13%-18%B； 5-7 min， 18%-50%B； 7-9.5 min， 50%-60%B； 9.5-11 min， 60%-99%B； 11-14 min； 99%B； 14-15 min， 99%-1%B； 15-16 min， 1%B）， the column temperature at 40 ℃， and the flow rate of 0.3 mL·min-1. Electrospray ionization （ESI） and negative ion full scan mode were selected for the mass spectrometric conditions to analyze the samples， and the detection range was m/z 50-1 200. Chemical constituents of the aerial part were qualitatively analyzed with the reference substances， literature information and ChemSpider. Principal component analysis （PCA） and orthogonal partial least squares discriminant analysis （OPLS-DA） were used to analyze the classification trend， correlation and differential chemical components between aerial part and roots of G. straminea. ResultA total of 68 components， including 24 iridoids， 13 flavonoids， 8 triterpenoids， 6 xanthones， 5 fatty acids， 4 saccharides， 3 phenolic glycosides， 2 alkaloids， 2 sterols and 1 lignan， were preliminarily identified from the aerial part of G. straminea. Among them， 42 components were firstly reported in 4 Gentiana species included in the 2020 edition of Chinese Pharmacopoeia. Eight differential components were screened out， namely sucrose， maltotriose， loganic acid， shanzhiside methyl ester， 6′-O-β-D-glucosylgentiopicroside， swertiamarin， gentiopicrin and isovitexin. ConclusionThe aerial part of G. straminea is rich in chemical constituents and has good medicinal potential. There were significant differences in the chemical components between the aerial part and roots of G. straminea， and the main differential components were iridoids， which could provide a basis for exploring efficacy differences in different parts of G. straminea.
