Optimisation of ethanol modified supercritical carbon dioxide on the extract yield and antioxidant activity from Garcinia mangostana L.

► To find the optimal SC-CO2 extraction impact on extract yield and antioxidant activity. ► Modifier addition for SC-CO2 of polar xanthones for higher recoveries. ► On-line HPLC-ESI/MS analysis to obtain fingerprints and reliable identification of xanthones.