Antioxidant Activity of Indole-3-butyric Acid
The antioxidant activity of indole-3-butyric acid was studied by measuring the DPPH scavenging activity, hydroxyl radical scavenging activity, hydrogen peroxide scavenging activity, metal chelating activity and reducing power. The results showed that both IBA and IAA expressed a stronger antioxidant activity than NAA and 2,4-D in the DPPH scavenging activity, hydroxyl radical scavenging activity, metal chelating activity, reducing power. Compared with GA, no significant difference in metal chelating activity was appeared.