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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