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Sun H, Wang MY, Huang JQ, Cui DX, Leng L, Gao XM, Li X, Yang WZ. Characterization and identification of the wide-polarity multicomponents from Prunella vulgaris by offline two-dimensional liquid chromatography and hydrophilic interaction chromatography coupled to ion mobility-quadrupole time-of-flight mass spectrometry. J Chromatogr A 2024; 1732:465233. [PMID: 39142171 DOI: 10.1016/j.chroma.2024.465233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2024] [Revised: 07/27/2024] [Accepted: 08/06/2024] [Indexed: 08/16/2024]
Abstract
Metabolites identification is crucial to develop functional foods or perform quality control. Prunella vulgaris (Xia-Ku-Cao) is a medicinal and edible plant used as the herbal medicine or main additive in functional beverage. However, current analytical strategies can only on-line characterize tens of compounds, restricted by insufficient chromatographic resolution and low coverage of the mass spectrometric scan methods. This work was designed to characterize the wide-polarity components from the ear of P. vulgaris. The total extract was fractionated by semi-preparative high-performance liquid chromatography into the retained medium-polarity fraction and unretained polar fraction, which were further analyzed by offline two-dimensional liquid chromatography (2D-LC) and hydrophilic interaction chromatography, respectively. Data-independent high-definition MSE of the Vion™ ion mobility time-of-flight mass spectrometer was utilized enabling the high-coverage acquisition of collision-induced dissociation-MS2 data. The offline 2D-LC, configuring the XBridge Amide and HSS T3 columns, gave high orthogonality (0.81) and effective peak capacity (1555). Automatic peak annotation facilitated by the UNIFI™ bioinformatics platform and comparison with 62 reference compounds achieved the efficient and more reliable structural elucidation. We could characterize 255 compounds from P. vulgaris, with numerous phenylpropanoid phenolic acids and triterpenoid O-glycosides newly reported. Especially, collision cross section (CCS) prediction and targeted isolation of three compounds assisted in the identification of 39 groups of isomers. Additionally, 17 hydrophilic compounds, involving oligosaccharides and organic acids, were characterized from the unretained polar fraction. Conclusively, the in-depth metabolites identification of P. vulgaris was accomplished, and the results can benefit the development and better quality control of this valuable plant.
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Affiliation(s)
- He Sun
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Meng-Yao Wang
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Jia-Qi Huang
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Dian-Xin Cui
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Ling Leng
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Xiu-Mei Gao
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China
| | - Xue Li
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China.
| | - Wen-Zhi Yang
- State Key Laboratory of Chinese Medicine Modernization, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China; Tianjin Key Laboratory of Therapeutic Substance of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Tianjin 301617, PR China.
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Mairinger T, Weiner M, Hann S, Troyer C. Selective and Accurate Quantification of N-Acetylglucosamine in Biotechnological Cell Samples via GC-MS/MS and GC-TOFMS. Anal Chem 2020; 92:4875-4883. [PMID: 32096989 PMCID: PMC7205392 DOI: 10.1021/acs.analchem.9b04582] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
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N-Acetylglucosamine is a key component of bacterial
and fungal cell walls and of the extracellular matrix of animal cells.
It plays a variety of roles at the cell surface structure and is under
discussion to be involved in signaling pathways. The presence of a
number of N-acetylhexosamine stereoisomers in samples
of biological or biotechnological origin demands for dedicated high
efficiency separation methods, due to identical exact mass and similar
fragmentation patterns of the stereoisomers. Gas chromatography offers
high sample capacity, separation efficiency, and precision under repeatability
conditions of measurement, which is a necessity for the analysis of
low abundant stereoisomers in biological samples. Automated online
derivatization facilitates to overcome the main obstacle for the use
of gas chromatography in metabolomics, namely, the derivatization
of polar metabolites prior to analysis. Using alkoximation and subsequent
trimethylsilylation, carbohydrates and their derivatives are known
to show several derivatives, since derivatization is incomplete as
well as highly matrix dependent inherent to the high number of functional
groups present in carbohydrates. A method based on efficient separation
of ethoximated and trimethylsilylated N-acetylglucosamines
was developed. Accurate absolute quantification is enabled using biologically
derived 13C labeled internal standards eliminating systematic
errors related to sample pretreatment and analysis. Due to the lack
of certified reference materials, a methodological comparison between
tandem and time-of-flight mass spectrometric instrumentation was performed
for mass spectrometric assessment of trueness. Both methods showed
limits of detection in the lower femtomol range. The methods were
applied to biological samples of Penicillium chrysogenum cultivations with different matrices revealing excellent agreement
of both mass spectrometric techniques.
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Affiliation(s)
- Teresa Mairinger
- Institute of Analytical Chemistry, Department of Chemistry, University of Natural Resources and Life Sciences, BOKU Vienna, Muthgasse 18, 1190 Vienna, Austria
| | - Michael Weiner
- Novartis Technical Operations Anti-Infectives, MS&T Laboratories, Biochemiestraße 10, 6250 Kundl, Austria
| | - Stephan Hann
- Institute of Analytical Chemistry, Department of Chemistry, University of Natural Resources and Life Sciences, BOKU Vienna, Muthgasse 18, 1190 Vienna, Austria
| | - Christina Troyer
- Institute of Analytical Chemistry, Department of Chemistry, University of Natural Resources and Life Sciences, BOKU Vienna, Muthgasse 18, 1190 Vienna, Austria
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