Fig. 2From: Development and application of a high-performance liquid chromatography diode-array detection (HPLC–DAD) method for the simultaneous quantification of phenolic compounds in the aerial part of Glehnia littoralisCoumarin, flavonoid, and hydroxycinnamic acid contents following A different thermal treatment approaches, and B extraction using different solvents. Additional file 1: Tables S4 and S5 indicate the quantification results for the 16 individual phenolic compounds. SD, shade drying; OD, oven drying; RO, roasting; and ST, steamingBack to article page