Cost-efficient bio-based food packaging films from unpurified agar-based extracts
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http://hdl.handle.net/10045/95570
Título: | Cost-efficient bio-based food packaging films from unpurified agar-based extracts |
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Autor/es: | Martínez-Sanz, Marta | Martinez-Abad, Antonio | López-Rubio, Amparo |
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: | Seaweed | Sulphated polysaccharides | UV-blocking | Barrier properties | Plasticization |
Área/s de conocimiento: | Química Analítica |
Fecha de publicación: | sep-2019 |
Editor: | Elsevier |
Cita bibliográfica: | Food Packaging and Shelf Life. 2019, 21: 100367. doi:10.1016/j.fpsl.2019.100367 |
Resumen: | This work reports on the production of sustainable, cost-efficient food packaging films from unpurified agar-based extracts obtained from Gelidium sesquipedale seaweed. Unlike the purified agars, that required the addition of a plasticizer, the presence of impurities such as other polysaccharides (mainly floridean starch) and proteins exerted a plasticization effect in the unpurified agars, forming flexible films with no added plasticizer. The formation of interpenetrating polysaccharide/protein networks in the unpurified agar films had a positive impact in their mechanical and water barrier performance, which were similar or even better than those from the purified agars. Furthermore, these films showed improved resistance to high humidity conditions and retained their film structure, as opposed to the purified agar films, which gelled upon contact with moisture. Finally, the presence of impurities also provided the unpurified agar films greater light blocking capacity, inhibiting to a further extent the UV light-induced degradation of β-carotene. |
Patrocinador/es: | This work was financially supported by the “Agencia Estatal de Investigación” and co-funded by the European Union’s Horizon 2020 research and innovation programme (ERA-Net SUSFOOD2). Marta Martinez-Sanz is recipient of a Juan de la Cierva (IJCI-2015-23389) contract from the Spanish Ministry of Economy, Industry and Competitiveness. Antonio Martínez-Abad is a recipient of a Juan de la Cierva (IJCI-2017-31522) contract from the Spanish Ministry of Science, Innovation and Universities. |
URI: | http://hdl.handle.net/10045/95570 |
ISSN: | 2214-2894 |
DOI: | 10.1016/j.fpsl.2019.100367 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2019 Elsevier Ltd. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.fpsl.2019.100367 |
Aparece en las colecciones: | Investigaciones financiadas por la UE INV - NANOBIOPOL - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2019_Martinez-Sanz_etal_FoodPackShelfLife_final.pdf | Versión final (acceso restringido) | 1,84 MB | Adobe PDF | Abrir Solicitar una copia |
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