Chinese Propolis Inhibits the Proliferation of Human Gastric Cancer Cells by Inducing Apoptosis and Cell Cycle Arrest

Figure 1

HPLC chromatograms of the standard solution (S1) and CMBP (S2): 1: caffeic acid; 2: p-coumaric acid; 3: ferulic acid; 4: isoferulic acid; 5: 3,4-dimethoxycinnamic acid; 6: pinobanksin; 7: naringenin; 8: quercetin; 9: kaempferol; 10: apigenin; 11: pinocembrin; 12: benzyl caffeate; 13: 3-O-acetyl pinobanksin; 14: chrysin; 15: CAPE; 16: galangin; 17: benzyl p-coumarate.