Table 4.
Pearson’s correlation coefficient between the total phenolic compounds, extracted dry matter, and antioxidant capacity
| ORAC | FRAP | EDM | TPC | DPPH | |
|---|---|---|---|---|---|
| FRAP | r = 0.964 (p < 0.01) | ||||
| EDM | r = 0.247 (p = 0.071) | r = 0.285 (p < 0.05) | |||
| TPC | r = 0.802 (p < 0.01) | r = 0.818 (p < 0.01) | r = 0.704 (p < 0.01) | ||
| DPPH | r = 0.782 (p < 0.01) | r = 0.836 (p < 0.01) | r = 0.055 (p = 0.691) | r = 0.563 (p < 0.01) | |
| BCB | r = 0.955 (p < 0.01) | r = 0.950 (p < 0.01) | r = 0.088 (p = 0.525) | r = 0.699 (p < 0.01) | R = 0.856 (p < 0.01) |
Correlation data (p value) = r(p)
EDM extracted dry matter, TPC total polyphenol content, DPPH 1,1-diphenyl-2-picryl-hydrazyl, FRAP ferric reducing antioxidant power, BCB β-carotene bleaching assay, ORAC oxygen radical absorbance capacity