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Article

Encapsulation of Synthesized Plant Growth Regulator Based on Copper(II) Complex in Chitosan/Alginate Microcapsules

1
Biotechnology Department, M. Auezov South-Kazakhstan University, Tauke-Khan av. 5, 160012 Shymkent, Kazakhstan
2
Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia
3
Ukrainian State University of Chemical Technology, Gagarina av., 49000 Dnipro, Ukraine
4
Laboratory for Biocolloids and Surface Chemistry, Ruđer Bošković Institute, 10000 Zagreb, Croatia
5
Department of Wood Technology, Faculty of Forestry, University of Zagreb, 10000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Academic Editor: Iolanda Francolini
Int. J. Mol. Sci. 2021, 22(5), 2663; https://doi.org/10.3390/ijms22052663
Received: 29 January 2021 / Revised: 27 February 2021 / Accepted: 1 March 2021 / Published: 6 March 2021
(This article belongs to the Special Issue Chitosan Functionalizations, Formulations and Composites 2.0)
A new copper complex, trans-diaqua-trans-bis [1-hydroxy-1,2-di (methoxycarbonyl) ethenato] copper (abbreviation Cu(II) complex), was synthesized and its plant growth regulation properties were investigated. The results show a sharp dependence of growth regulation activity of the Cu(II) complex on the type of culture and its concentration. New plant growth regulator accelerated the development of the corn root system (the increase in both length and weight) but showed a smaller effect on the development of the wheat and barley root systems. Stimulation of corn growth decreased with increasing Cu(II) complex concentration from 0.0001% to 0.01% (inhibition at high concentrations—0.01%). The development of corn stems was also accelerated but to a lesser extent. Chitosan-coated calcium alginate microcapsules suitable for delivery of Cu(II) complex to plants were prepared and characterized. Analysis of the FTIR spectrum showed that complex molecular interactions between functional groups of microcapsule constituents include mainly electrostatic interactions and hydrogen bonds. Microcapsules surface exhibits a soft granular surface structure with substructures consisting of abundant smaller particles with reduced surface roughness. Release profile analysis showed Fickian diffusion is the rate-controlling mechanism of Cu(II) complex releasing. The obtained results give new insights into the complexity of the interaction between the Cu(II) complex and microcapsule formulation constituents, which can be of great help in accelerating product development for the application in agriculture View Full-Text
Keywords: copper(II) complex; plant growth regulation; encapsulation; controlled release copper(II) complex; plant growth regulation; encapsulation; controlled release
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MDPI and ACS Style

Kudasova, D.; Mutaliyeva, B.; Vlahoviček-Kahlina, K.; Jurić, S.; Marijan, M.; Khalus, S.V.; Prosyanik, A.V.; Šegota, S.; Španić, N.; Vinceković, M. Encapsulation of Synthesized Plant Growth Regulator Based on Copper(II) Complex in Chitosan/Alginate Microcapsules. Int. J. Mol. Sci. 2021, 22, 2663. https://doi.org/10.3390/ijms22052663

AMA Style

Kudasova D, Mutaliyeva B, Vlahoviček-Kahlina K, Jurić S, Marijan M, Khalus SV, Prosyanik AV, Šegota S, Španić N, Vinceković M. Encapsulation of Synthesized Plant Growth Regulator Based on Copper(II) Complex in Chitosan/Alginate Microcapsules. International Journal of Molecular Sciences. 2021; 22(5):2663. https://doi.org/10.3390/ijms22052663

Chicago/Turabian Style

Kudasova, Darikha, Botagoz Mutaliyeva, Kristina Vlahoviček-Kahlina, Slaven Jurić, Marijan Marijan, Svetlana V. Khalus, Alexander V. Prosyanik, Suzana Šegota, Nikola Španić, and Marko Vinceković. 2021. "Encapsulation of Synthesized Plant Growth Regulator Based on Copper(II) Complex in Chitosan/Alginate Microcapsules" International Journal of Molecular Sciences 22, no. 5: 2663. https://doi.org/10.3390/ijms22052663

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