Pressurised liquid extraction combining LC-DAD-ESI/MS analysis as an alternative method to extract three major flavones in Citrus reticulata 'Chachi' (Guangchenpi)

► Three flavones in Citrus reticulata 'Chachi' were extracted by pressurised liquid extraction. ► The parameters affecting PLE method were investigated in details. ► Three flavones were quantified and analysed by LC-DAD-ESI/MS method. ► Compared with conventional extraction techniques, the efficiency of PLE was the highest.