Table 12 Correlation coefficients (R2) for the linear relationships between the antioxidant activities and contents of each bound phenolic component
Compound | CaA | Iso | Ast | PrA | FeA | SyA | Que | Rut | GaA | BeA | FRAP | ABTS | DPPH |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CaA | 1 | 0.65768 | 0.25927 | 0.37507 | − 0.09959 | 0.62789 | 0.55234 | 0.54925 | 0.22599 | − 0.98429 | 0.46961 | 0.49066 | 0.40303 |
Iso | – | 1 | 0.47181 | 0.74687 | 0.22374 | 0.18262 | 0.73828 | 0.43122 | 0.06553 | 1 | 0.32322 | 0.3395 | 0.12059 |
Ast | – | – | 1 | 0.12189 | 0.25964 | 0.50799 | 0.46127 | 0.17347 | − 0.20314 | 0.34391 | 0.2905 | 0.22378 | 0.09693 |
PrA | – | – | – | 1 | 0.37708 | − 0.33017 | 0.70274 | − 0.01405 | 0.29171 | 1 | − 0.09967 | − 0.046 | − 0.21309 |
FeA | – | – | – | – | 1 | − 0.3119 | 0.32327 | − 0.07737 | − 0.24806 | 0.47515 | − 0.20614 | − 0.17771 | − 0.27261 |
SyA | – | – | – | – | – | 1 | 0.09162 | 0.69018 | − 0.17523 | − 0.77855 | 0.6659 | 0.57881 | 0.64429 |
Que | – | – | – | – | – | – | 1 | 0.38495 | − 0.04223 | – | 0.16827 | 0.21116 | 0.05313 |
Rut | – | – | – | – | – | – | – | 1 | − 0.23894 | – | 0.72964 | 0.6797 | 0.67301 |
GaA | – | – | – | – | – | – | – | – | 1 | – | − 0.18081 | − 0.11587 | − 0.16261 |
BeA | – | – | – | – | – | – | – | – | – | 1 | 0.98417 | 0.94582 | 0.963 |
FRAP | – | – | – | – | – | – | – | – | – | – | 1 | 0.95325 | 0.93894 |
ABTS | – | – | – | – | – | – | – | – | – | – | – | 1 | 0.94952 |
DPPH | – | – | – | – | – | – | – | – | – | – | – | – | 1 |