Flavonoid aglycones can compete with Ochratoxin A for human serum albumin: A new possible mode of action

► Various flavonoid aglycones compete with Ochratoxin A (OTA) to human serum albumin. ► Competition is quantified by fluorescence polarization method. ► Structure of flavonoids determine their capability to compete with OTA for HSA. ► Our data are the first descriptions on competitive action of flavonoids with OTA.