Anti-inflammatory effects of phenolic-rich cranberry bean (Phaseolus vulgaris L.) extracts and enhanced cellular antioxidant enzyme activities in Caco-2 cells

•Abundance of flavonoids in regular-darkening (RR) cranberry bean extract.•RR extract displayed strong dose-dependent cellular antioxidant activity.•Regular- and non-darkening cranberry bean extract suppressed IL-8 secretion.•Both extract also enhanced antioxidant enzyme activity.