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. 2018 May 14;17:355–366. doi: 10.1016/j.redox.2018.05.005

Table 4.

Correlations between antioxidant activity of GSH and catechins or catechin-only series determined by chemical (ABTS, DPPH, FC) tests and CAA assay examined using Pearson's coefficients.

Pearson's coefficients
DPPH n10
ABTS n10
FC n60
GSH, catechins catechins GSH, catechins catechins GSH, catechins catechins
CAA (1 µM) 0.772 0.628 0.759 0.613 0.808 0.731
CAA (10 µM) 0.664 0.725 0.531 0.710 0.580 0.807
CAA (100 µM) 0.834 0.831 0.732 0.824 0.786 0.940
CAA (1000 µM) 0.948 0.920 0.888 0.917 0.870 0.872