Fig. 5From: Discriminating from species of Curcumae Radix (Yujin) by a UHPLC/Q-TOFMS-based metabolomics approachRelative intensities of the chemical markers in Curcuma Radix derived from four species. (a) curcumin, (b) curcumenone, (c) curcumenol, (d) zederone, (e) neocurdione, (f) curdione and (g) curzerenone. Data represent the mean values ± SD (n = 3). ** and **** indicate P < 0.01 and P < 0.0001, respectivelyBack to article page