Rincón, E.Espinosa, E.García Domínguez, María TrinidadBalu, A. M.Vilaplana, F.Serrano, L.Jiménez Quero, A.2021-11-252021-11-252021Rincón, E., Espinosa, E., García-Domínguez, M. T., Balu, A. M., Vilaplana, F., Serrano, L., & Jiménez-Quero, A. (2021). Bioactive pectic polysaccharides from bay tree pruning waste: Sequential subcritical water extraction and application in active food packaging. In Carbohydrate Polymers (Vol. 272, p. 118477). Elsevier BV. https://doi.org/10.1016/j.carbpol.2021.1184770144-8617http://hdl.handle.net/10272/20251The potential isolation of bio-active polysaccharides from bay tree pruning waste was studied using sequential subcritical water extraction using different time-temperature combinations. The extracted polysaccharides were highly enriched in pectins while preserving their high molecular mass (10–100 kDa), presenting ideal properties for its application as additive in food packaging. Pectin-enriched chitosan films were prepared, improving the optical properties (=95% UV-light barrier capacity), antioxidant capacity (?95% radical scavenging activity) and water vapor permeability (=14 g·Pa-1·s-1·m-1·10-7) in comparison with neat chitosan-based films. Furthermore, the antimicrobial activity of chitosan was maintained in the hybrid films. Addition of 10% of pectins improved mechanical properties, increasing the Young's modulus 12%, and the stress resistance in 51%. The application of pectin-rich fractions from bay tree pruning waste as an additive in active food packaging applications, with triple action as antioxidant, barrier, and antimicrobial has been demonstrated.engAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/LaurelCircular biorefineryGreen extraction methodAntioxidant pectinsFood packaging filmsjournal article10.1016/j.carbpol.2021.118477open access3303 Ingeniería y Tecnología Químicas