GONG Zi-peng, WU Lin-lin, WU Ping, et al. Analysis of Metabolites of Extract in Rat Feces[J]. Chinese journal of experimental traditional medical formulae, 2017, 23(24): 100-105.
GONG Zi-peng, WU Lin-lin, WU Ping, et al. Analysis of Metabolites of Extract in Rat Feces[J]. Chinese journal of experimental traditional medical formulae, 2017, 23(24): 100-105. DOI: 10.13422/j.cnki.syfjx.2017240100.
Objective: To investigate the metabolites of Inula cappa extract in rat feces after oral administration. Method: UPLC-Q-TOF-MS/MS was used for analyzing the metabolites of I. cappa extract in rat feces after oral administration at a dose of 100 g·kg-1.Separation of the metabolites was performed on an RRHD Eclipse Plus C18 column (2.1 mm×100 mm
1.8 μm) with the mobile phase of 0.1% formic acid-0.1% formic acid acetonitrile solution for gradient elution
and the samples were treated by electron spray negative ionization mode (ESI-).Then the data were processed with metabolite tools softwares to identify the chemical structure of metabolites. Result: M8 (1
3-O-dicaffeoylquinic acid) and 21 other metabolites were identified
including M1-M4(hydrogenation of caffeoylquinic acid)
M5(sulfation of dihydrocaffeic acid)
M6-M7(methylation of caffeoylquinic acid) and so on. Conclusion: Hydrogenation and methylation are the major metabolic pathways of I. cappa extract in rat feces.