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. 2013 Oct;14(10):903–915. doi: 10.1631/jzus.B1200365

Table 3.

Correlation coefficients describing the relationships between EAP and EAF and the antioxidant parameters (DPPH and FRAP), determined by simple linear regression

Independent variable EAP
EAF
R DPPH R FRAP R DPPH R FRAP
Time 0.9244 0.9497 0.7937 0.9603
Solid-to-solvent ratio 0.9959 0.8495 0.9859 0.8367
Temperature 0.2571 0.8887 0.4381 0.9477
Ethanol concentration 0.7192 0.9366 0.6888 0.9790
Number of cycles 0.9191 0.9712 0.8110 0.8938

R DPPH and R FRAP: regression coefficients of DPPH and FRAP, respectively