Evaluation of anthocyanins in Aronia melanocarpa/BSA binding by spectroscopic studies

AMB Express

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	K_s (× 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