Characterisation and quantification of xanthones from the aril and pericarp of mangosteens (Garcinia mangostana L.) and a mangosteen containing functional beverage by HPLC-DAD-MSn

► Mangosteens have a high content of xanthones. ► Pericarp is seen as novel food despite its long-term use in countries of origin. ► Xanthone pattern was analysed in pericarp, aril and a functional beverage. ► The fruit parts and the beverage show same xanthone pattern but differ in contents. ► Mangosteen pericarp as novel food should be reconsidered.