. 2015 Aug 18;15:287. doi: 10.1186/s12906-015-0820-3

Table 3.

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

Assays	Correlation r
	Flavonoids	Phenolic
EC₅₀ of DPPH radical scavenging ability	−0.987^b	−0.969^b
EC₅₀ of ABTS radical scavenging ability	−0.828	−0.876
EC₅₀ of O₂ ⁻ radical scavenging ability	−0.997^b	−0.968^b
EC₅₀ of OH radical scavenging ability	−0.722	−0.611
EC₅₀ of NO radical scavenging ability	−0.992^b	−0.957^a
EC₅₀ of reduce power	−0.995^b	−0.968^b
EC₅₀ of phosphomlybdenum assay	−0.868	−0.884^a

r: correlation coefficient. ^aindicates significance at p < 0.05, ^bindicates significance at p < 0.01