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Table 5 Correlation of IC50 values of different antioxidant activities with total phenolic and total flavonoid contents

From: Phytochemical, antioxidant and hepatoprotective effects of Alnus nitida bark in carbon tetrachloride challenged Sprague Dawley rats

Activity Correlation R2
TFC TPC
DPPH scavenging activity 0.91** 0.86*
Nitric oxide scavenging activity 0.55 0.77*
Hydroxyl radical scavenging activity 0.75* 0.84*
β-carotene bleaching scavenging activity 0.68* 0.82*
Iron chelating assay 0.85* 0.83*
Total antioxidant activity 0.79* 0.74*
Total reducing power Assay 0.80* 0.83*
  1. TFC total flavonoid content, TPC total phenolic content
  2. Column with different superscripts are significantly different *, **, indicate P < 0.05, P < 0.01