Identification and quantification of constituents of Gardenia jasminoides Ellis (Zhizi) by HPLC-DAD-ESI-MS

► A HPLC method was developed for identification of compounds in Gardenia jasminoides. ► Twelve compounds were identified including iridoids, caffeoyl quinic acid derivatives and crocins. ► The analytical method was validated. ► This assay was used for characterisation of five commercial samples.