Release and antioxidant activity of carvacrol and thymol from polypropylene active packaging films
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Título: | Release and antioxidant activity of carvacrol and thymol from polypropylene active packaging films |
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Autor/es: | Ramos, Marina | Beltrán Sanahuja, Ana | Peltzer, Mercedes Ana | Valente, Artur J.M. | Garrigós, María del Carmen |
Grupo/s de investigación o GITE: | Análisis de Polímeros y Nanomateriales |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología |
Palabras clave: | Active packaging | Carvacrol | Thymol | Migration | Diffusion |
Área/s de conocimiento: | Química Analítica |
Fecha de publicación: | 25-abr-2014 |
Editor: | Elsevier |
Cita bibliográfica: | LWT - Food Science and Technology. 2014, Accepted Manuscript, Available online 25 April 2014. doi:10.1016/j.lwt.2014.04.019 |
Resumen: | The migration of antioxidant (AO) agents, carvacrol and thymol, from polypropylene (PP) packaging films containing the studied compounds at 80 g/kg separately and an equimolar mixture of them into food simulants was investigated. Fast and reliable analytical procedures were developed and validated for the analysis of the studied AOs in food simulants. For aqueous food simulants, solid phase extraction followed by GC–MS analysis was performed. Fatty food simulants were directly analysed by GC–MS and HPLC-UV for isooctane and ethanol 950 mL/L, respectively. The release of AOs from the films was dependent on the type of food stimulant and AO incorporated. In particular, high levels of migration were obtained for both AOs into isooctane, showing thymol higher migration. The release kinetics of AOs from PP films showed a Fichian behaviour with diffusion coefficients ranging from 1 to 2 × 10−14 m2/s; except for the diffusion into isooctane where 4-6 higher values were obtained. The antioxidant activity of migration extracts was confirmed by the DPPH method, showing thymol a higher antioxidant capacity especially into isooctane with a 42.2% of inhibition. The obtained results suggest that carvacrol and thymol show a potential use as AOs for active packaging for extending the shelf-life of food products. |
Patrocinador/es: | Spanish Ministry of Economy and Competitiveness (MAT-2011-28640-C02-01). Marina Ramos would like to thank University of Alicante (Spain) for UAFPU2011-48539721S predoctoral research grant. |
URI: | http://hdl.handle.net/10045/37066 |
ISSN: | 0023-6438 (Print) | 1096-1127 (Online) |
DOI: | 10.1016/j.lwt.2014.04.019 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.lwt.2014.04.019 |
Aparece en las colecciones: | INV - NANOBIOPOL - Artículos de Revistas INV - AAQCN - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2014_Ramos_etal_LWT.pdf | Accepted Manuscript (acceso abierto) | 1,86 MB | Adobe PDF | Abrir Vista previa |
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