Protective Effects of a Polyphenol-Rich Extract from Syzygium cumini (L.) Skeels Leaf on Oxidative Stress-Induced Diabetic Rats

Figure 2

Kinetics of DPPH^. radical consumption after addition of polyphenol-rich extract (PESc). PESc (0.62–5 μg/mL) was incubated with DPPH^. and the reaction monitored for 10 minutes to determine the maximum antioxidant activity. After 5 minutes, maximal effect was reached at all the concentrations tested as shown by the vertical dashed line.