An FTIR spectroscopy study of the interaction between as-casein-bound phosphoryl groups and chitosan

C. FERNÁNDEZ; S.F. AUSAR; R.G. BADINI; L.F. CASTAGNA; I.D. BIANCO; D.M. BELTRAMO

INTERNATIONAL DAIRY JOURNAL

Elsevier

Año: 2003 vol. 13 p. 897 - 897

0958-6946

font face="AdvTimes" size="1"> Fourier-transform infrared spectroscopy was used to study the nature of the linkage and interactions of phosphate ester bonds in as-casein under precipitation by chitosan. We have found that the dianionic stretching band of the covalently bound phosphate ins-casein under precipitation by chitosan. We have found that the dianionic stretching band of the covalently bound phosphate in as-casein at 976 cm1 is sensitive to the ionization state and the binding ofCa