CHANGES IN THE STRUCTURAL AND RHEOLOGICAL PROPERTIES OF INULIN RESULTING FROM OXIDATION
Authors
Umarova Sitora, Khusenov Arslonnazar, Rakhmanberdiev Gappar, Ibragimova Komila, Kiyamova Malika
Share
Annotation
This study investigated the changes in the structural and rheological properties of inulin induced by oxidation under different reaction conditions. Inulin was oxidized using an HNO3/H3PO4–NaNO2 oxidation system at different reaction times and temperatures. The degree of oxidation, zeta potential, viscosity, and product yield were evaluated to characterize the changes in the physicochemical properties of the modified polymer. Increasing the reaction time and temperature resulted in a progressive increase in the degree of oxidation, accompanied by an increase in viscosity and a shift of the zeta potential toward more negative values. However, higher oxidation conditions led to a decrease in product yield, suggesting partial degradation of the macromolecular chains. X-ray diffraction analysis showed a gradual decrease in the intensity of the main diffraction peak with increasing oxidation degree, indicating changes in the ordered regions of the inulin structure. The results demonstrate that oxidation significantly affects the structural and physicochemical properties of inulin and can be used to modify its functional characteristics.
Keywords
Authors
Umarova Sitora, Khusenov Arslonnazar, Rakhmanberdiev Gappar, Ibragimova Komila, Kiyamova Malika
Share
References:
Mensink, M. A., Frijlink, H. W., van der Voort Maarschalk, K., Hinrichs, W. L. J. (2015). Inulin, a flexible oligosaccharide I: Review of its physicochemical characteristics. Carbohydrate Polymers, 130, 405–419.
Kumar, V., Yang, T. (2002). HNO₃/H₃PO₄–NaNO₂ mediated oxidation of cellulose-preparation and characterization of bioabsorbable oxidized celluloses in high yields and with different levels of oxidation. Carbohydrate Polymers, 48(4), 403–412.
Wang, P., He, H., Cai, R., Zhang, X., & Chen, J. (2019). Cross-linking of dialdehyde carboxymethyl cellulose with silk sericin to reinforce sericin film for biomedical applications. Carbohydrate Polymers, 212, 403-411. https://doi.org/10.1016/j.carbpol.2019.02.038
Khusenov, A.Sh., Jonuzokov, A.J., Kamalova, D.S., Tilakov, J.R., Rakhmanberdiev, G. (2024). Synthesis of chlorinulin with different characteristics. Scientific and Technical Journal of Fergana Polytechnic Institute, 28(1), 224–227.
Khusenov, A. S., Kamalova, D. S., Kee, N. K., & Rakhmanberdiev, G. (2024). Synthesis and study of the physicochemical properties of inulin derivatives containing amino groups. Scientific and Technical Journal of Fergana Polytechnic Institute, 28(3), 179-183.
Afinjuomo, F., Fouladian, P., Barclay, T. G., Song, Y., Petrovsky, N., & Garg, S. (2020). Influence of oxidation degree on the physicochemical properties of oxidized inulin. Polymers, 12(5), 1025. https://doi.org/10.3390/polym12051025
Rakhmanberdiev, G., Kiyamova, M.I., Abdullaev, O.Kh., Khusenov, A.Sh. (2024). Study of the molecular structure of inulin, carboxymethylinulin and the structure of fibroin. Kompozitsion materiallar, (2), 106–109.
Mensink, M. A., Frijlink, H. W., van der Voort Maarschalk, K., Hinrichs, W. L. J. (2015). Inulin, a flexible oligosaccharide I: Review of its physicochemical characteristics. Carbohydrate Polymers, 130, 405–419.
Kumar, V., Yang, T. (2002). HNO₃/H₃PO₄–NaNO₂ mediated oxidation of cellulose-preparation and characterization of bioabsorbable oxidized celluloses in high yields and with different levels of oxidation. Carbohydrate Polymers, 48(4), 403–412.
Wang, P., He, H., Cai, R., Zhang, X., & Chen, J. (2019). Cross-linking of dialdehyde carboxymethyl cellulose with silk sericin to reinforce sericin film for biomedical applications. Carbohydrate Polymers, 212, 403-411. https://doi.org/10.1016/j.carbpol.2019.02.038
Khusenov, A.Sh., Jonuzokov, A.J., Kamalova, D.S., Tilakov, J.R., Rakhmanberdiev, G. (2024). Synthesis of chlorinulin with different characteristics. Scientific and Technical Journal of Fergana Polytechnic Institute, 28(1), 224–227.
Khusenov, A. S., Kamalova, D. S., Kee, N. K., & Rakhmanberdiev, G. (2024). Synthesis and study of the physicochemical properties of inulin derivatives containing amino groups. Scientific and Technical Journal of Fergana Polytechnic Institute, 28(3), 179-183.
Afinjuomo, F., Fouladian, P., Barclay, T. G., Song, Y., Petrovsky, N., & Garg, S. (2020). Influence of oxidation degree on the physicochemical properties of oxidized inulin. Polymers, 12(5), 1025. https://doi.org/10.3390/polym12051025
Vanier, N. L., Mello El Halal, S. L., Dias, A. R. G., & Zavareze, E. R. (2017). Molecular structure, functionality and applications of oxidized starches: A review. Food Chemistry, 221, 1546–1559. https://doi.org/10.1016/j.foodchem.2016.10.138
Other articles of the issue
