418953.fig.004
Figure 4: Correlation between AGE-inhibiting and DPPH radical-scavenging activities of Corni Fructus polyphenolic fractions. The correlation between AGE-inhibiting activity at a concentration of 12.5 μg/mL and DPPH radical-scavenging activity at a concentration of 1 μg/mL (■), and AGE-inhibiting activity at a concentration of 25 μg/mL and DPPH radical-scavenging activity at a concentration of 2 μg/mL (□).