The anticarcinogenic potential of essential oil and aqueous infusion from caper (Capparis spinosa L.)

► Investigation of the antioxidant activity of wild-grown caper from Dalmatia. ► Methyl isothiocyanate was detected as major volatile compounds in caper essential oil. ► Rutin and chlorogenic acid were detected as dominant compounds in caper aqueous infusion. ► High-inhibitory effect of oil and infusion on HT-29 cell proliferation and NF-κB activation. ► Caper oil and infusion blocked the cell cycle at G2/M phase.