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Table 3 Correlations between the EC50 values of antioxidant assays and phenolic and flavonoids content of R. anthopogonoides

From: Antioxidant potential, total phenolic and total flavonoid contents of Rhododendron anthopogonoides and its protective effect on hypoxia-induced injury in PC12 cells

Assays Correlation r
  Flavonoids Phenolic
EC50 of DPPH radical scavenging ability −0.987b −0.969b
EC50 of ABTS radical scavenging ability −0.828 −0.876
EC50 of O2 radical scavenging ability −0.997b −0.968b
EC50 of OH radical scavenging ability −0.722 −0.611
EC50 of NO radical scavenging ability −0.992b −0.957a
EC50 of reduce power −0.995b −0.968b
EC50 of phosphomlybdenum assay −0.868 −0.884a
  1. r: correlation coefficient. aindicates significance at p < 0.05, bindicates significance at p < 0.01