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Artículo

Grapefruit Seed Extract and Lemon Essential Oil as Active Agents in Corn Starch–Chitosan Blend Films

Bof, Maria JulietaIcon ; Jiménez, A.; Locaso, Delia Elisa; Garcia, Maria AlejandraIcon ; Chiralt, A.
Fecha de publicación: 12/2016
Editorial: Springer
Revista: Food and Bioprocess Technology
ISSN: 1935-5130
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Recubrimientos y Películas

Resumen

The effect of lemon essential oil (LEO) and grapefruit seed extract (GSE) addition to starch–chitosan blend films on their functional properties and the associated structural changes were studied. Likewise, the films’ antioxidant properties and antimicrobial activity against some molds and Gram (+) and Gram (−) bacteria was evaluated. Composite active films exhibited a yellowish color, especially in the case of LEO addition. Film microstructure was analyzed by SEM evidencing a good incorporation of GSE to film matrix, while LEO droplets were dispersed in the polymer blend. Oxygen and water vapor barrier properties were not notably modified by the presence of active agents. FTIR analyses revealed that hydrogen bonding occurs in the blend films as the main interaction mechanism between components. Films containing LEO or GSE were less stiff and resistant but more stretchable than the control ones, being this effect concentration dependent. No notable antimicrobial action was observed in the films, which suggest that the required final concentration of active compounds must be fitted considering the minimum inhibitory concentration (MIC) values for a specific microorganism and its release kinetics to the food matrix.
Palabras clave: Grapefruit Seeds Extract Antimicrobials , Lemon Essential Oil , Starch- Chitosan Films , Tensile And Barrier Properties
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/38599
URL: https://link.springer.com/article/10.1007/s11947-016-1789-8
DOI: http://dx.doi.org/10.1007/s11947-016-1789-8
Colecciones
Articulos(CIDCA)
Articulos de CENTRO DE INV EN CRIOTECNOLOGIA DE ALIMENTOS (I)
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Bof, Maria Julieta; Jiménez, A.; Locaso, Delia Elisa; Garcia, Maria Alejandra; Chiralt, A.; Grapefruit Seed Extract and Lemon Essential Oil as Active Agents in Corn Starch–Chitosan Blend Films; Springer; Food and Bioprocess Technology; 9; 12; 12-2016; 2033-2045
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