Research Article
Effect of Brewing Water on the Antioxidant Capacity of Green Tea Infusion with DPPH Assay
Figure 3
Effect of different metal ions on the antioxidant activity of EGCG solutions of 50 mg/L. R1/R0: the antioxidant activity of EGCG solution added with/without metal ion, respectively. The marks above the column show the significance of differences, ns indicates , indicates , and indicates .