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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/67293

    Título
    Carvacrol encapsulation in chitosan–carboxymethylcellulose–alginate nanocarriers for postharvest tomato protection
    Autor
    Sánchez Hernández, EvaAutoridad UVA Orcid
    Santiago Aliste, Alberto
    Correa Guimaraes, AdrianaAutoridad UVA
    Martín Gil, JesúsAutoridad UVA Orcid
    Gavara Clemente, Rafael José
    Martín Ramos, PabloAutoridad UVA Orcid
    Año del Documento
    2024
    Editorial
    MDPI
    Descripción
    Producción Científica
    Documento Fuente
    International Journal of Molecular Sciences, 2024, Vol. 25, Nª. 2, 1104
    Résumé
    Advancements in polymer science and nanotechnology hold significant potential for addressing the increasing demands of food security, by enhancing the shelf life, barrier properties, and nutritional quality of harvested fruits and vegetables. In this context, biopolymer-based delivery systems present themselves as a promising strategy for encapsulating bioactive compounds, improving their absorption, stability, and functionality. This study provides an exploration of the synthesis, characterization, and postharvest protection applications of nanocarriers formed through the complexation of chitosan oligomers, carboxymethylcellulose, and alginate in a 2:2:1 molar ratio. This complexation process was facilitated by methacrylic anhydride and sodium tripolyphosphate as cross-linking agents. Characterization techniques employed include transmission electron microscopy, energy-dispersive X-ray spectroscopy, infrared spectroscopy, thermal analysis, and X-ray powder diffraction. The resulting hollow nanospheres, characterized by a monodisperse distribution and a mean diameter of 114 nm, exhibited efficient encapsulation of carvacrol, with a loading capacity of approximately 20%. Their suitability for phytopathogen control was assessed in vitro against three phytopathogens—Botrytis cinerea, Penicillium expansum, and Colletotrichum coccodes—revealing minimum inhibitory concentrations ranging from 23.3 to 31.3 μg·mL−1. This indicates a higher activity compared to non-encapsulated conventional fungicides. In ex situ tests for tomato (cv. ‘Daniela’) protection, higher doses (50–100 μg·mL−1, depending on the pathogen) were necessary to achieve high protection. Nevertheless, these doses remained practical for real-world applicability. The advantages of safety, coupled with the potential for a multi-target mode of action, further enhance the appeal of these nanocarriers.
    Materias (normalizadas)
    Nanotechnology
    Nanoparticles
    Nanoparticulas
    Polymers
    Polymerization
    Polimeros y polimerización
    Spectroscopy
    X-ray spectroscopy
    Infrared spectroscopy
    Espectroscopia de infrarrojos
    Transmission electron microscopy
    Microscopy
    Nanoencapsulation
    Microencapsulación
    Fungicides
    Fruit - Postharvest diseases and injuries
    Frutas - Enfermedades y plagas
    Sustainable agriculture
    Agricultura sostenible
    Materias Unesco
    2206.10 Polímeros
    2209.21 Espectroscopia
    2301.20 Espectroscopia de Rayos X
    2301.12 Microscopia
    3102 Ingeniería Agrícola
    3101.05 Fungicidas
    ISSN
    1422-0067
    Revisión por pares
    SI
    DOI
    10.3390/ijms25021104
    Patrocinador
    Junta de Castilla y León y Fondo Europeo de Desarrollo Regional (FEDER) - (project VA148P23)
    Fundación General de la Universidad de Valladolid - (proyecto APLICADRON)
    Unión Europea, Programa Horizon (HORIZON-CL6-2022-FARM2FORK-01) - (project ID 101084398)
    Version del Editor
    https://www.mdpi.com/1422-0067/25/2/1104
    Propietario de los Derechos
    © 2024 The authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/67293
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
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    • DEP42 - Artículos de revista [291]
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    Carvacrol-Encapsulation.pdf
    Tamaño:
    2.611Mo
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    Atribución 4.0 InternacionalExcepté là où spécifié autrement, la license de ce document est décrite en tant que Atribución 4.0 Internacional

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