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Development and Characterization of a Novel Soil Amendment Based on Biomass Fly Ash Encapsulated in Calcium Alginate Microspheres

Biomass fly ash (BFA) from a biomass cogeneration plant was encapsulated into calcium alginate microspheres (ALG/Ca) and characterized. An FTIR analysis indicated that BFA loading weakened molecular interactions between ALG/Ca constituents (mainly hydrogen bonding and electrostatic interactions), th...

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Detalles Bibliográficos
Autores principales: Vinceković, Marko, Šegota, Suzana, Jurić, Slaven, Harja, Maria, Ondrasek, Gabrijel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9456561/
https://www.ncbi.nlm.nih.gov/pubmed/36077392
http://dx.doi.org/10.3390/ijms23179984
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author Vinceković, Marko
Šegota, Suzana
Jurić, Slaven
Harja, Maria
Ondrasek, Gabrijel
author_facet Vinceković, Marko
Šegota, Suzana
Jurić, Slaven
Harja, Maria
Ondrasek, Gabrijel
author_sort Vinceković, Marko
collection PubMed
description Biomass fly ash (BFA) from a biomass cogeneration plant was encapsulated into calcium alginate microspheres (ALG/Ca) and characterized. An FTIR analysis indicated that BFA loading weakened molecular interactions between ALG/Ca constituents (mainly hydrogen bonding and electrostatic interactions), thus changing the crosslinking density. SEM and AFM analyses revealed a wrinkled and rough surface with elongated and distorted granules. The in vitro release of BFA’s main components (K, Ca, and Mg) was controlled by diffusion through the gel-like matrix, but the kinetics and released amounts differed significantly. The smaller released amounts and slower release rates of Ca and Mg compared to K resulted from the differences in the solubility of their minerals as well as from the interactions of divalent cations with alginate chains. The physicochemical properties of the novel microsphere formulation reveal significant potential for the prolonged delivery of nutrients to crops in a safe manner.
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spelling pubmed-94565612022-09-09 Development and Characterization of a Novel Soil Amendment Based on Biomass Fly Ash Encapsulated in Calcium Alginate Microspheres Vinceković, Marko Šegota, Suzana Jurić, Slaven Harja, Maria Ondrasek, Gabrijel Int J Mol Sci Article Biomass fly ash (BFA) from a biomass cogeneration plant was encapsulated into calcium alginate microspheres (ALG/Ca) and characterized. An FTIR analysis indicated that BFA loading weakened molecular interactions between ALG/Ca constituents (mainly hydrogen bonding and electrostatic interactions), thus changing the crosslinking density. SEM and AFM analyses revealed a wrinkled and rough surface with elongated and distorted granules. The in vitro release of BFA’s main components (K, Ca, and Mg) was controlled by diffusion through the gel-like matrix, but the kinetics and released amounts differed significantly. The smaller released amounts and slower release rates of Ca and Mg compared to K resulted from the differences in the solubility of their minerals as well as from the interactions of divalent cations with alginate chains. The physicochemical properties of the novel microsphere formulation reveal significant potential for the prolonged delivery of nutrients to crops in a safe manner. MDPI 2022-09-01 /pmc/articles/PMC9456561/ /pubmed/36077392 http://dx.doi.org/10.3390/ijms23179984 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Vinceković, Marko
Šegota, Suzana
Jurić, Slaven
Harja, Maria
Ondrasek, Gabrijel
Development and Characterization of a Novel Soil Amendment Based on Biomass Fly Ash Encapsulated in Calcium Alginate Microspheres
title Development and Characterization of a Novel Soil Amendment Based on Biomass Fly Ash Encapsulated in Calcium Alginate Microspheres
title_full Development and Characterization of a Novel Soil Amendment Based on Biomass Fly Ash Encapsulated in Calcium Alginate Microspheres
title_fullStr Development and Characterization of a Novel Soil Amendment Based on Biomass Fly Ash Encapsulated in Calcium Alginate Microspheres
title_full_unstemmed Development and Characterization of a Novel Soil Amendment Based on Biomass Fly Ash Encapsulated in Calcium Alginate Microspheres
title_short Development and Characterization of a Novel Soil Amendment Based on Biomass Fly Ash Encapsulated in Calcium Alginate Microspheres
title_sort development and characterization of a novel soil amendment based on biomass fly ash encapsulated in calcium alginate microspheres
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9456561/
https://www.ncbi.nlm.nih.gov/pubmed/36077392
http://dx.doi.org/10.3390/ijms23179984
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