Nontargeted metabolomics of Korean and Chinese Platycodon grandiflorum using GC-TOF-MS: geographical-origin discrimination and metabolic pathway analysis via chemometrics.
Platycodon grandiflorum is an economically significant medicinal and edible plant in East Asia, whose chemical composition varies with cultivation location. In this study, a nontargeted metabolomics approach based on gas chromatography-time-of-flight mass spectrometry was combined with multivariate chemometrics to diff...