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Artículo

Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extracts

Zazzali, IgnacioIcon ; Jaramillo Sánchez, Gabriela MaribelIcon ; Gabilondo, Julieta; Peixoto Mallmann, Luana; Rodrigues, Eliseu; Perullini, Ana MercedesIcon ; Santagapita, Patricio RomanIcon
Fecha de publicación: 12/2022
Editorial: Elsevier
Revista: Food Hydrocolloids for Health
ISSN: 2667-0259
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Físico-Química, Ciencia de los Polímeros, Electroquímica

Resumen

Artichoke harvest waste is rich in phenolic compounds, which we retrieved with green extractions to exploit this otherwise undervalued material. Here, to protect these labile compounds, we encapsulated the extract into Ca(II)-alginate beads and optimized their physico-chemical and structural properties via response surface methodology. Moreover, we corroborated the carryover of predominant phenolic compounds from waste to bead via high-performance liquid chromatography coupled with diode-array detection and mass spectrometry (HPLC-DAD-MS). We found that maximum bioactive capacity is obtained at higher concentrations of alginate precursor and lower gel consolidation times and that strength, size, and roundness of the beads were influenced mainly by the alginate precursor concentration. Additionally, through small angle X-ray scattering we revealed a deep relationship between synthesis conditions and the microstructure of the gel, related to the crosslinking degree and ramification of the final arrangement, which in turn impacts its strength. We validated the model by running an optimal point of 2 min of gelling time and 2.25 % of alginate and obtaining satisfactory experimental errors for the parameters analyzed. This holistic approach enables modulation and bottom-up tuning of the structure of beads for advanced delivery applications.
Palabras clave: BIOACTIVE COMPOUNDS , BIOPOLYMERS , ENCAPSULATION , MICROSTRUCTURE , RSM , WASTE
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/210127
DOI: http://dx.doi.org/10.1016/j.fhfh.2022.100097
Colecciones
Articulos(CIHIDECAR)
Articulos de CENTRO DE INVESTIGACIONES EN HIDRATOS DE CARBONO
Articulos(INQUIMAE)
Articulos de INST.D/QUIM FIS D/L MATERIALES MEDIOAMB Y ENERGIA
Articulos(ITAPROQ)
Articulos de INSTITUTO DE TECNOLOGIA DE ALIMENTOS Y PROCESOS QUIMICOS
Citación
Zazzali, Ignacio; Jaramillo Sánchez, Gabriela Maribel; Gabilondo, Julieta; Peixoto Mallmann, Luana; Rodrigues, Eliseu; et al.; Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extracts; Elsevier; Food Hydrocolloids for Health; 2; 12-2022; 1-8
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