*3.11. Phytochemical Identification in PSY*

Raw data detected by UPLC-QTOF MS/MS were analyzed using PeakView 2.2, including MasterView software (SCIEX) for peak identification and matching with the reference standard and in-house MS/MS library, and the chemical structural information was analyzed using the GNPS website (http://gnps.ucsd.edu, accessed on 31 March 2022). Subsequently, accurate MS/MS fragmentation information was queried in Mass-Bank (https://massbank.eu/MassBank), FooDB (https://foodb.ca), and Metlin databases (http://metlin.scripps.edu/website) to screen and identify potential compound information.
