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Two-dimensional Liquid Chromatography and Ion Mobility-mass Spectrometry for the Multicomponent Characterization of Different Parts of the Medicinal Plant

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Journal Front Chem
Specialty Chemistry
Date 2023 Sep 18
PMID 37720716
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Abstract

Herba Gynostemma (Jiaogulan) is an herbaceous plant of the genus in the family Cucurbitaceae. has lipid-lowering activity, thus, it is used as a medicinal material. However, its medicinal using parts have been recorded as whole plants or aerial parts in different provincial quality standards; therefore, it is necessary to conduct a comprehensive compositional analysis of the different parts of (rhizomes, stems, and leaves) used in traditional medicine. In this study, offline two-dimensional liquid chromatography-ion mobility-quadrupole time-of-flight mass spectrometry (2D-LC/IM-QTOF-MS) was used to analyze the different parts of obtained from Shaanxi province, China. By combining the retention times, mass fragments, collision cross-section values, reference standards, and information concerning literature compounds, 396 components were identified from the three parts of the plant, including 94 groups of isomers, and 217 components were identified or tentatively identified as new compounds. In the rhizomes, leaves, and stems, 240, 220, and 168 compounds, respectively, were identified. Differential analysis of the compounds in the rhizomes and aerial parts was also carried out, and 36 differential components were identified, of which 32 had higher contents in the rhizomes. Therefore, these findings indicate that the number of chemical components and the content of major differential components are higher in the rhizomes than the leaves and stems of from the Maobaling Planting Base in Pingli county, Shaanxi province. Thus, the rhizomes of are also an important part for medicinal use. These results will contribute to the establishment of quality control methods for .

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