Comprehensive profiling and characterization of chemical constituents of rhizome of Anemarrhena asphodeloides Bge.

The rhizome of Anemarrhena asphodeloides Bge. is commonly used as an herbal medicine in China. In this study, ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS) was used, in both negative and positive ion modes, to comprehensively analyze the chemical constituents of A. asphodeloides. From the intact precursor ions, MS/MS fragmentation information, and previous reports, we identified 89 compounds. These compounds included 8 cyclic peptides, 11 flavones (9 xanthones), 45 steroidal saponins, 15 fatty acids, 3 lignans, and 7 other compounds. Dimer xanthones and cyclic peptides are reported for the first time in A. asphodeloides. The analytical method we have developed is simple, reliable, and effective. The results provide comprehensive information on the metabolite profile of A. asphodeloides, which may benefit the quality control and further utilization of A. asphodeloides.