Antioxidative Activities and Active Compounds of Extracts from Catalpa Plant Leaves

Figure 1

Total flavonoid content and antioxidant activity of various fractions of CA6. (a) Total flavonoid content; (b) reducing power; (c) DPPH radical scavenging activity; (d) hydroxyl radical scavenging activity.

(a)

(b)

(c)

(d)