Untargeted Metabolomics Reveals Distinct Anthocyanin Profiles in Napier Grass (Pennisetum purpureum Schumach.) Cultivars

Plant secondary metabolites regulate plant growth and serve as valuable pharmaceutical resources. Napier grass (Pennisetum purpureum Schumach.), a Poaceae species, shows po- tential as a functional food. In this study, we employed high-resolution mass spectrometry combined with a data-independent acquisition (DIA) strategy for the untargeted detection of anthocyanins, a group of secondary metabolites, in napier grass. Clear MS2 fragmenta- tion patterns were observed for anthocyanins,...