Fig. 1. Anticancer mechanism of STE and HPLC analysis of the active ingredients in different Jin Guanyin extracts. (a) The anticancer mechanism of STE. (b) Representative HPLC-UV chromatography acquired at 278 nm of 15 standards samples, STE and ATE, respectively. (c) The contents of total phenolic contents (TPC) (as gallic acid equivalents) in ATE and STE (1: A; 2: GA; 3: GC; 4: TL; 5: EGC; 6: C; 7: CA; 8: EC; 9: EGCG; 10: ECG; 11: CG; 12: TF1; 13: TF2; 14: TF3; 15: TF4).