Por favor, use este identificador para citar o enlazar este ítem: https://hdl.handle.net/20.500.12008/54849

Título:

Solid dispersions as effective curcumin vehicles to obtain k-carrageenan functional films for olive oil preservation

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Autor:

Cunha de Rezende, Stephany
Santamaria-Echart, Arantzazu
Scorsato Almeida, Heloísa Helena
Marcet, Ismael
Carpintero, Maria
Rendueles, Manuel
Lopretti, Mary Isabel
Dias, Madalena Maria
Barreiro, Maria Filomena

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Tipo de documento:

Artículo

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Palabras clave:

K-carrageenan polymeric films
Curcumin compatibilization mediated by solid dispersions
Active food packaging
Olive oil preservation

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Año de publicación:

2025

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Resumen:

Synthetic packaging materials offer cost efficiency and performance but pose environmental risks. This study explores sustainable alternatives by developing k-carrageenan (KC) films functionalized with curcumin, using solid dispersions (SDs) to improve curcumin's compatibility, addressing the challenge of incorporating hydro- phobic functionalities into hydrophilic film matrices. Films with varying curcumin content (1–20 wt%; KC1-KC20) were compared to a base film without curcumin (KC0) regarding water solubility, vapor permeability, water contact angle, and tensile properties. Compared to KC0, KC10 (10 % curcumin-SDs) exhibited improved water resistance, with solubility decreasing from 82.89 % to 77.18 %, while maintaining vapor permeability (2.96 × 10 10 g⋅m/s⋅m2⋅Pa). KC10 demonstrated enhanced tensile properties, with a 12.51 % increase in tensile modulus (241.47 MPa), a 3.86 % increase in stress at break (3.50 MPa), and a 4.42 % increase in strain at break (2.36 %). Furthermore, it exhibited potent antioxidant activity without releasing curcumin into a simulated fatty medium (non-migratory active protection mechanism), effectively preserving olive oil by limiting lipid oxidation to a peroxide value (PV) of 14 mEq. O2/kg oil, compared to 20 mEq. O2/kg oil in unprotected samples under accelerated conditions. It demonstrated significant antimicrobial activity with bacterial reductions of 95.4 % (Escherichia coli) and 90.6 % (Listeria monocytogenes), surpassing KC0. In conclusion, k-carrageenan films functionalized with curcumin SDs are promising and sustainable alternatives to synthetic packaging materials.

Descripción:

Información suplementaria en: https://doi.org/10.1016/j.ijbiomac.2024.138446.

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Editorial:

Elsevier

EN:

International Journal of Biological Macromolecules, 2025, 286: 138446.

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Citación:

Cunha de Rezende, S, Santamaria-Echart, A, Scorsato Almeida, H [y otros autores]. "Solid dispersions as effective curcumin vehicles to obtain k-carrageenan functional films for olive oil preservation". International Journal of Biological Macromolecules. [en línea] 2025, 286: 138446. 11 h. DOI: 10.1016/j.ijbiomac.2024.138446

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1879-0003

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Licencia Creative Commons Atribución (CC - By 4.0)

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Publicaciones académicas y científicas
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10.1016.j.ijbiomac.2024.138446.pdf — 5.09 MB Adobe PDF
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