Antioxidant activity and bioaccessibility of phenolic compounds in white, red, blue, purple, yellow and orange edible flowers through a simulated intestinal barrier

•Phenolic acids, stilbenes, flavanol, anthocyanin, flavonol and flavanone were detected in all flowers.•The orange flower cosmos presented the highest content of phenolic compounds.•Bioaccessibility of phenolics varied among the compounds and within the flower source.•Before in vitro digestion mini rose displayed the highest activity in FRAP and DPPH assays.•The dialyzed fraction of cravine showed the highest activity in DDPH assay.•Cosmos and mini rose are source of bioaccessible phenolics with great antioxidant activity.