Kinetics of the Sorption of Theophylline in Pectin Hydrogels with Different Structural Properties
S. A. Koksharov, S. V. Aleeva, O. V. Lepilova
Российский журнал физической химии А
https://doi.org/10.1134/S003602442204015X
Approaches to achieving the structure-preserving release of pectin substances and modeling the block cellular structure of their hydrogels are proposed. The approaches are based on viscosimetric and IR spectral data on the degree of polymerization and the ratio of galacturonate units in the nonsubstituted, methoxylated, and calcium pectate forms. The effect the structural organization of polyuronides has on the kinetic parameters of outer and inner diffusion limitations of mass transfer, and on the rate constant of sorption interaction and the ultimate sorption capacity of the biopolymer with respect to theophylline used as a model of azaheterocyclic mycotoxins is outlined using the example of pectins extracted from flax seeds and apple peels.
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