Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extracts
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 propert...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Food Hydrocolloids for Health |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667025922000449 |
| _version_ | 1811190500632297472 |
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| author | Ignacio Zazzali Gabriela Jaramillo Julieta Gabilondo Luana Peixoto Mallmann Eliseu Rodrigues Mercedes Perullini Patricio R. Santagapita |
| author_facet | Ignacio Zazzali Gabriela Jaramillo Julieta Gabilondo Luana Peixoto Mallmann Eliseu Rodrigues Mercedes Perullini Patricio R. Santagapita |
| author_sort | Ignacio Zazzali |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-11T14:52:13Z |
| format | Article |
| id | doaj.art-de29e15ac88146c4b5d4bc12cbf4bec6 |
| institution | Directory Open Access Journal |
| issn | 2667-0259 |
| language | English |
| last_indexed | 2024-04-11T14:52:13Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Food Hydrocolloids for Health |
| spelling | doaj.art-de29e15ac88146c4b5d4bc12cbf4bec62022-12-22T04:17:24ZengElsevierFood Hydrocolloids for Health2667-02592022-12-012100097Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extractsIgnacio Zazzali0Gabriela Jaramillo1Julieta Gabilondo2Luana Peixoto Mallmann3Eliseu Rodrigues4Mercedes Perullini5Patricio R. Santagapita6Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamentos de Química Orgánica y de Industrias. Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires. Centro de Investigaciones de Hidratos de Carbono (CIHIDECAR). Buenos Aires, ArgentinaCONICET-Universidad de Buenos Aires. Instituto de Tecnología de Alimentos y Procesos Químicos (ITAPROQ). Buenos Aires, ArgentinaUniversidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamentos de Química Orgánica y de Industrias. Buenos Aires, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA) Estación experimental agropecuaria (EEA). San Pedro. Ruta 9 km 170. Buenos Aires. ArgentinaInstituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre 91501-970, BrazilInstituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre 91501-970, BrazilUniversidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física. Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires. Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE). Buenos Aires, ArgentinaUniversidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamentos de Química Orgánica y de Industrias. Buenos Aires, Argentina; CONICET-Universidad de Buenos Aires. Centro de Investigaciones de Hidratos de Carbono (CIHIDECAR). Buenos Aires, Argentina; Corresponding author.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.http://www.sciencedirect.com/science/article/pii/S2667025922000449EncapsulationMicrostructureBiopolymersWasteBioactive compoundsRSM |
| spellingShingle | Ignacio Zazzali Gabriela Jaramillo Julieta Gabilondo Luana Peixoto Mallmann Eliseu Rodrigues Mercedes Perullini Patricio R. Santagapita Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extracts Food Hydrocolloids for Health Encapsulation Microstructure Biopolymers Waste Bioactive compounds RSM |
| title | Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extracts |
| title_full | Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extracts |
| title_fullStr | Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extracts |
| title_full_unstemmed | Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extracts |
| title_short | Fine-tuning of functional and structural properties of Ca(II)-alginate beads containing artichoke waste extracts |
| title_sort | fine tuning of functional and structural properties of ca ii alginate beads containing artichoke waste extracts |
| topic | Encapsulation Microstructure Biopolymers Waste Bioactive compounds RSM |
| url | http://www.sciencedirect.com/science/article/pii/S2667025922000449 |
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