Fig. 6
From: Discriminating from species of Curcumae Radix (Yujin) by a UHPLC/Q-TOFMS-based metabolomics approach
PCA/bi-plots of the 33 Curcuma Radix samples constructed using (A) seven chemical markers (a–g) and (B) four unique chemical markers (a–d). (a) curcumin, (b) curcumenone, (c) curcumenol, (d) zederone, (e) neocurdione, (f) curdione and (g) curzerenone