Table 2.
The binding constants and thermodynamic parameters of Cyanidin-3-O-arabinoside, Cyanidin-3-O-galactoside, Cyanidin-3-O-glucoside and Cyanidin-3-O-Xyloside at 297, 317 and 337 K
Complexes | T | Ks (× 103 L mol−1) | n | ∆H (KJ mol−1) | ∆G (KJ mol−1) | ∆S (J mol−1· K) |
---|---|---|---|---|---|---|
Cyanidin | 297 | 0.574 ± 0.023 | 0.9395 ± 0.0034 | 4.03 | − 22.39 | 88.95623 |
-3-O- | 317 | 0.412 ± 0.037 | 0.9754 ± 0.0044 | 4.03 | − 24.59 | 90.28391 |
Arabinoside | 337 | 0.398 ± 0.010 | 0.9489 ± 0.0058 | 4.03 | − 25.98 | 89.05045 |
Cyanidin | 297 | 0.484 ± 0.025 | 0.9195 ± 0.0054 | 20.47 | − 21.63 | 86.39731 |
-3-O- | 317 | 0.395 ± 0.011 | 0.9515 ± 0.0037 | 20.47 | − 20.84 | 78.45426 |
Galactoside | 337 | 0.308 ± 0.012 | 0.9354 ± 0.0014 | 20.47 | − 25.14 | 86.55786 |
Cyanidin | 297 | 0.425 ± 0.037 | 0.9153 ± 0.0022 | 11.56 | − 24.22 | 95.11785 |
-3-O- | 317 | 0.403 ± 0.033 | 0.9175 ± 0.0009 | 11.56 | − 29.23 | 104.9211 |
Glucoside | 337 | 0.399 ± 0.030 | 0.9612 ± 0.0074 | 11.56 | − 21.78 | 76.58754 |
Cyanidin | 297 | 0.521 ± 0.027 | 0.9265 ± 0.0085 | 9.81 | − 28.47 | 109.4276 |
-3-O- | 317 | 0.543 ± 0.026 | 0.8987 ± 0.0045 | 9.81 | − 23.96 | 88.29653 |
Xyloside | 337 | 0.537 ± 0.014 | 0.9024 ± 0.0049 | 9.81 | − 25.51 | 87.65579 |