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Table 10 Correlation coefficients (R2) for the linear relationships between the total phenolic content, free phenolic content, bound phenolic content and FRAP, DPPH, and ABTS activities

From: Comparison of free and bound phenolic compositions and antioxidant activities of leaves from different mulberry varieties

  FRAPa ABTSb DPPHc FRAPd ABTSe DPPHf PCtotalg PCfreeh PCboundi
FRAPa 1 0.8898 0.96 0.6751 0.6437 0.7375 0.795 0.7973 0.1861
ABTSb 1 0.7676 0.7876 0.6866 0.7878 0.7052 0.7059 0.2342
DPPHc 1 0.5208 0.5338 0.6443 0.7722 0.7755 0.1234
FRAPd 1 0.9532 0.9389 0.4926 0.4873 0.4582
ABTSe 1 0.9495 0.4193 0.4131 0.4749
DPPHf 1 0.4629 0.4606 0.2929
PCtotalg 1 0.9998 0.3899
PCfreeh 1 0.3732
PCboundi 1
  1. aFerric reducing antioxidant power of the free phenolic extract
  2. bABTS radical scavenging activity of the free phenolic extract
  3. cDPPH radical scavenging activity of the free phenolic extract
  4. dFerric reducing antioxidant power of the bound phenolic extract
  5. eABTS radical scavenging activity of the bound phenolic extract
  6. fDPPH radical scavenging activity of the bound phenolic extract
  7. gTotal phenolic content
  8. hFree phenolic content
  9. iBound phenolic content