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Metabolic profiling and discrimination of two cacti cultivated in Korea using HPLC-ESI-MS and multivariate statistical analysis

Metabolic profiling of cactus samples collected on Jeju Island (Opuntia ficus-indica) and in Sinan, Jeonnam province (O. Humifusa) was carried out using high performance liquid chromatography-electrospray ionization mass spectroscopy (HPLC-ESI-MS) and multivariate statistical analysis. The samples were classified into two characteristic groups and the flavonoid glycosides accounting for the observed variations were identified by MS/MS analysis. This approach provided an overview of the differences among plant products originating from differences in the genetic nature of plants.