Identification and quantification of (dihydro) hydroxycinnamic acids and their conjugates in potato by UHPLC-DAD-ESI-MSn

► UHPLC-DAD-ESI-MSn revealed 39 (conjugated) (dihydro) hydroxycinnamic acids (HCA). ► Molecular diversity of (conjugated) HCA in potato has been underestimated until now. ► Few authentic compounds as external standards accurately quantified conjugated HCA.